Oral cavity cleaning device with reverse connection charging protection function

Abstract

The utility model provides an oral cavity cleaning device with reverse connection charging protection, and belongs to the field of oral cavity equipment, the oral cavity cleaning device comprises an oral cavity cleaning device body, a magnetic attraction charging interface and a magnetic attraction charging head, the direction of a second magnet in the magnetic attraction charging head is consistent with the direction of a first magnet on the magnetic attraction charging interface, and effective attraction can be achieved during correct charging; when a user performs reverse charging, the magnets repel each other, and the external magnetic attraction charging head cannot be attracted to the magnetic attraction charging interface. Therefore, two male end PINs (a magnetic pin + and a magnetic pin-) of the magnetic attraction charging head cannot be correctly and effectively connected with two female end PINs (a pin + and a pin-) on the magnetic attraction charging interface, a reverse connection charging protection effect is achieved, a first magnet in the magnetic attraction charging interface is provided with two out-of-plane magnetic poles, and the first magnet and the two female end PINs form an integrated matrix site, so that the magnetic attraction charging head and the magnetic attraction charging interface are integrated. The arrangement is compact, the enclosed design is adopted, and the device can be conveniently arranged on oral cleaning devices such as a water pick and an electric toothbrush which are small and exquisite in structure.

Description

Technical Field

[0001] The utility model relates to the field of oral devices, and particularly provides an oral irrigator with reverse connection charging protection. Background Art

[0002] With the increasing attention to oral health, oral cleaning products such as dental irrigators and electric toothbrushes have emerged on the market. For ease of use, most products are designed to be powered by rechargeable batteries. At the same time, for waterproof design, many products adopt magnetic charging. To solve the problem of reverse insertion of the power polarity in magnetic charging, many products have made structural anti-fooling designs. For example, Chinese Patent CN206148721U discloses an anti-fooling structure for a magnetic charging head: charging the device through spring pins and contact pieces, and providing two relatively arranged first magnets and second magnets on the charging head, and providing a first magnetic attraction piece corresponding to the first magnet and a second magnetic attraction piece corresponding to the second magnet on the device to be charged. When the charging head is connected to the device to be charged, the convex part is inserted into the groove, and at this time, the magnets and the magnetic attraction pieces attract each other; however, this design is not beautiful and convenient enough, and is more unsuitable for oral cleaning devices such as electric toothbrushes and dental irrigators with small sizes and convenience as the key factor. Summary of the Invention

[0003] In view of the above, the purpose of the utility model is to solve the problem that there is no convenient and beautiful anti-reverse connection charging structure suitable for oral irrigators on the market.

[0004] Based on this aspect, the utility model provides an oral irrigator with reverse connection charging protection, which is characterized by including:

[0005] An oral irrigator body, which has a charging circuit;

[0006] A magnetic charging interface, which is integrated on the oral irrigator body and connected to the charging circuit. The magnetic charging interface includes at least two female terminal PIN pins and a first magnet. The two female terminal PIN pins are arranged side by side and are respectively connected to the positive and negative access terminals of the charging circuit. The first magnet has two different magnetic poles arranged out of the plane, and the first magnet is located on one side of the two female terminal PIN pins. The two magnetic poles of the first magnet and the two female terminal PIN pins form an integrated matrix site;

[0007] A magnetic charging head, which includes at least two male terminal PIN pins and a second magnet. The two male terminal PIN pins are positioned corresponding to the two female terminal PIN pins, and the second magnet is positioned corresponding to the first magnet and has two different magnetic poles arranged out of the plane. The two magnetic poles of the second magnet and the two magnetic poles of the first magnet attract each other when the positive and negative poles of the male terminal PIN pins and the female terminal PIN pins are correctly connected, and repel each other when they are reversely connected.

[0008] Preferably, the first magnet and the second magnet are bar magnets.

[0009] Preferably, the length of the first magnet is not less than the arranged length of two of the female terminal PIN pins side by side; the length of the second magnet is not less than the arranged length of two of the male terminal PIN pins side by side.

[0010] Preferably, the oral irrigator body includes a movement support and a control main board. The control main board is arranged on the movement support, and the charging circuit is integrated on the control main board; the magnetic charging interface is arranged on the side of the movement support close to the bottom.

[0011] Preferably, the magnetic charging head further includes a charging head housing. A cavity is formed inside the charging head housing. The second magnet and the male terminal PIN pins are located in the cavity, and the male terminal PIN pins extend out to form contact ends for contacting the female terminal PIN pins.

[0012] Preferably, the charging head housing includes a housing main body and a waterproof cover. One end of the housing main body facing the magnetic charging interface forms an opening, and the waterproof cover is arranged at the opening. The waterproof cover has a perforation corresponding to the contact end of the male terminal PIN pins.

[0013] Preferably, the housing main body is cylindrical; the two magnetic poles of the second magnet and the two male terminal PIN pins form an integrated matrix site at the center position of the circular cross-section of the housing main body.

[0014] Preferably, the oral irrigator body is an electric toothbrush or a dental irrigator.

[0015] Preferably, the movement support of the oral irrigator body has a platform area, and the magnetic charging interface is located in the platform area.

[0016] Preferably, the first magnet and the second magnet are neodymium iron boron magnets.

[0017] The beneficial effects of the above technical solutions can come from one or a combination of the following:

[0018] In this solution, the direction of the second magnet of the magnetic charging head is the same as the direction of the first magnet on the magnetic charging interface, and can be effectively attracted when charging correctly. When the user charges in the reverse direction, the magnets will repel each other, and the external magnetic charging head cannot be attracted to the magnetic charging interface; thus, the two male terminal PIN pins (magnetic pin +, magnetic pin -) of the magnetic charging head cannot be correctly and effectively connected to the two female terminal PIN pins (pin +, pin -) on the magnetic charging interface, so as to achieve the effect of reverse connection charging protection.

[0019] The first magnet in the magnetic charging interface has two out-of-plane magnetic poles, which form an integrated matrix site with the two female terminal PIN pins. The layout is compact and the enclosure design enables it to be conveniently arranged on oral cleaners with a small structure, such as a water flosser or an electric toothbrush. The compact design makes the layout aesthetically pleasing and the operation convenient.

[0020] Through the sealing waterproof design of the outer shell body and the waterproof cover of the magnetic charging head, the second magnet is arranged inside. On the one hand, it can play a protective role. On the other hand, it is clean and pollution-free, and will not be contaminated by foreign objects such as iron filings, which may cause problems such as impaired charging efficiency or even short circuit.

[0021] The magnetic charging interface is located in the side platform area of the movement bracket of the oral cleaner body, which is more convenient for operation. Different from the existing design that is located at the bottom of the device, it does not affect the charging of this magnetic connector and cause problems with the placement of the device. Description of the Drawings

[0022] Figure 1 It shows the assembly schematic diagram of the present utility model during charging.

[0023] Figure 2 It shows the structural schematic diagram of the present utility model.

[0024] Figure 3 It shows the structural schematic diagram of the magnetic charging interface in the present utility model.

[0025] Figure 4 It shows the structural schematic diagram of the magnetic charging head in the present utility model.

[0026] Figure 5 It shows the disassembly diagram of the magnetic charging head in the present utility model. Detailed Description of the Preferred Embodiments

[0027] The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0028] Unless the context clearly requires otherwise, the words "including", "comprising", and similar words throughout the specification and claims should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, the meaning of "including but not limited to".

[0029] It should be noted that the following is a specific explanation of the drawings mentioned in this embodiment:

[0030] Figure 1Shows the assembly schematic diagram of the structure during charging; specifically, it uses a dental irrigator as the carrier of the oral cleaner, removes the protective shell of the dental irrigator, and exposes the movement bracket to facilitate the structural expression of the magnetic charging interface;

[0031] Figure 2 Shows the structural schematic diagram of the structure; at the same time, it shows the structural schematic diagram when not charging, aiming to express the position of the magnetic charging interface on the dental irrigator and show the cooperation relationship between the magnetic charging interface and the magnetic charging head;

[0032] Figure 3 Shows the structural schematic diagram of the magnetic charging interface in this structure; on the basis of the Figure 2 perspective, it magnifies the specific perspective of the magnetic charging interface, aiming to show the structure of the magnetic charging interface in detail;

[0033] Figure 4 Shows the structural schematic diagram of the magnetic charging head in this structure, Figure 5 Shows the disassembly diagram of the magnetic charging head in this structure, Figure 4 and Figure 5 Show the structural assembly and disassembly diagrams of the magnetic charging head from the same perspective.

[0034] Please refer to Figures 1 to 5, this embodiment discloses an oral irrigator with reverse charging protection, which includes an oral irrigator body 1, a magnetic charging interface 2, and a magnetic charging head 3. Among them, the oral irrigator body 1 has a charging circuit 111; the magnetic charging interface 2 is integrated on the oral irrigator body 1 and connected to the charging circuit 111. The magnetic charging interface 2 at least includes two female terminal PIN pins 22 and a first magnet 21. The two female terminal PIN pins 22 are arranged side by side and are respectively connected to the positive and negative power access terminals of the charging circuit 111 (connected through circuit lines 112). The first magnet 21 has two different magnetic poles arranged out of the plane (represented by the N pole and the S pole respectively). The first magnet 21 is located on one side of the two female terminal PIN pins 22. The two magnetic poles of the first magnet 21 and the two female terminal PIN pins 22 form an integrated matrix site; the magnetic charging head 3 at least includes two male terminal PIN pins 34 and a second magnet 31. The positions of the two male terminal PIN pins 34 correspond to the two female terminal PIN pins 22, and the position of the second magnet 31 corresponds to the first magnet 21 and has two different magnetic poles arranged out of the plane (represented by the S pole and the N pole respectively). The two magnetic poles of the second magnet 31 and the two magnetic poles of the first magnet 21 attract each other when the positive and negative poles of the male terminal PIN pins 34 and the female terminal PIN pins 22 are correctly connected (the N pole and the S pole of the two attract each other with opposite polarities), and repel each other when reversely connected (the N pole and the S pole of the two repel each other with the same polarities). In this embodiment, the direction of the second magnet 31 of the magnetic charging head 3 is the same as the direction of the first magnet 21 on the magnetic charging interface 2, and can be effectively attracted during correct charging. When the user reversely charges, the magnets will repel each other, and the external magnetic charging head 3 cannot be attracted to the magnetic charging interface 2; thus, the two male terminal PIN pins 34 (magnetic PIN pin +, magnetic PIN pin -) of the magnetic charging head 3 cannot be correctly and effectively connected to the two female terminal PIN pins 22 (PIN pin +, PIN pin -) on the magnetic charging interface 2, thereby achieving the effect of reverse charging protection. Moreover, the first magnet 21 in the magnetic charging interface 2 has two magnetic poles out of the plane, and it forms an integrated matrix site with the two female terminal PIN pins 22. The layout is compact and the enclosure design can be conveniently arranged on small-structured oral irrigators such as dental irrigators and electric toothbrushes. The compact design makes the layout beautiful and the operation convenient.

[0035] The above is necessary to achieve the technical purpose of this embodiment. The following is a further detailed description in conjunction with the drawings:

[0036] Please refer to Figure 3 and Figure 5 , this embodiment utilizes the principle that like poles of magnets repel each other and opposite poles attract each other. As a preferred embodiment of this embodiment, the first magnet 21 and the second magnet 31 are bar magnets. The magnets can be naturally formed or magnetized. Preferably, in this embodiment, the first magnet 21 and the second magnet 31 are made of neodymium iron boron magnets, which are small in volume but extremely magnetic, and are suitable for the considerations of convenience and aesthetics in this embodiment.

[0037] As we all know, the charging method of the magnetic connector is a conventional charging method. Its principle is to use magnets to adsorb so that the PIN pins of the male and female ends are connected to complete charging. Therefore, the charging principle will not be elaborated here, and those skilled in the art should be familiar with it.

[0038] See also Figure 3 and Figure 5 In order to improve the repulsion sensitivity of the reverse connection protection, the length of the first magnet 21 is not less than the length of the two female PIN needles 22 arranged side by side. Similarly, the length of the second magnet 31 is not less than the length of the two male PIN needles 34 arranged side by side.

[0039] As a preferred implementation of this embodiment, the oral cleaning device body 1 can be selected as an electric toothbrush or a water flosser. In this embodiment, the water flosser is used as a description carrier. Figure 2 and Figure 3 The oral cleaning device body 1 includes a core bracket 12 and a control mainboard 11, wherein the control mainboard 11 is arranged on the core bracket 12, wherein the charging circuit 111 is integrated on the control mainboard 11, and the magnetic charging interface 2 is arranged on the side of the core bracket 12 near the bottom. Therefore, whether it is an electric toothbrush or an oral irrigator, the side charging method does not affect the bottom placement.

[0040] Furthermore, whether the oral cleaning device body 1 is used as an electric toothbrush or a water flosser, its overall structure is a cylindrical shape that conforms to ergonomic grip, and the side has a certain curvature. In this embodiment, the movement bracket 12 of the oral cleaning device body 1 has a platform area 120, and the magnetic charging interface 2 is located in the platform area 120. For further information, please refer to Figure 3 , Figure 3 The middle red frame area is defined as a platform area 120 , which is implemented as a flat area located on the movement bracket 12 and is determined by the design when the movement bracket 12 is formed.

[0041] See also Figure 4 and Figure 5 , the magnetic charging head 3 also includes a charging head shell, the interior of the charging head shell has a cavity, the second magnet 31 and the male PIN needle 34 are located in the cavity, and the male PIN needle 34 extends outward to form a contact end that contacts the female PIN needle 22. In order to further improve the waterproof and dustproof capabilities, the charging head shell includes a shell body 32 and a waterproof cover 33. The shell body 32 forms an opening at one end facing the magnetic charging interface 2, and the waterproof cover 33 is arranged at the opening. The waterproof cover 33 has a perforation 330 at the position corresponding to the contact end of the male PIN needle 34. There can be no gap between the contact end and the perforation 330 through close contact, or a sealing structure such as a sealing ring can be added.

[0042] To adapt to the matrix sites of the male PIN 34 and the second magnet 31, in this embodiment, the housing body 32 is preferably cylindrical. Specifically, the two magnetic poles of the second magnet 31 and the two male PINs 34 form an integrated matrix site at the center of the circular cross-section of the housing body 32. Preferably, at least the two ends of the second magnet 31 are implemented as arc-shaped sides, and the radian design thereof is adapted to the appearance of the cylindrical structure; similarly, the two ends of the first magnet 21 can also be implemented as arc-shaped sides.

[0043] The beneficial effects of this embodiment:

[0044] In this solution, the direction of the second magnet 31 of the magnetic charging head 3 is the same as that of the first magnet 21 on the magnetic charging interface 2, and they can be effectively attracted when charging correctly. When the user charges in the reverse direction, the magnets will repel each other, and the external magnetic charging head 3 cannot be attracted to the magnetic charging interface 2; thus, the two male PINs 34 (magnetic PIN +, magnetic PIN -) of the magnetic charging head 3 cannot be correctly and effectively connected to the two female PINs 22 (PIN +, PIN -) on the magnetic charging interface 2, thereby achieving the effect of reverse connection charging protection.

[0045] The first magnet 21 in the magnetic charging interface 2 has two out-of-plane magnetic poles, which form an integrated matrix site with the two female PINs 22. The layout is compact and the enclosure design enables it to be conveniently arranged on small-structured oral cleaners such as dental irrigators and electric toothbrushes. The compact design makes the layout beautiful and the operation convenient.

[0046] Through the closed waterproof design of the housing body 32 and the waterproof cover 33 of the magnetic charging head 3, the second magnet 31 is arranged inside. On the one hand, it can play a protective role, and on the other hand, it can be clean and pollution-free, and will not be contaminated by foreign objects such as iron filings, which may cause problems such as impaired charging efficiency or even short circuit.

[0047] The magnetic charging interface 2 is located in the side platform area 120 of the movement bracket 12 of the oral cleaner body 1, which is more convenient for operation. Different from the existing design which is located at the bottom of the device, it does not affect the charging of this magnetic connector and will not cause problems with the placement of the device.

[0048] The above specific implementation manners do not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present disclosure shall be included within the protection scope of the present disclosure.

[0049] Those skilled in the art should understand that the embodiments of the present utility model shown in the above description are only examples and do not limit the present utility model. The objectives of the present utility model have been fully and effectively achieved. The functions and structural principles of the present utility model have been shown and described in the embodiments. Without departing from the said principles, any variations or modifications can be made to the embodiments of the present utility model.

Claims

1. An oral rinser with reverse charging protection, characterized in that: include: An oral cleaning device body, wherein the oral cleaning device body has a charging circuit; A magnetic charging interface, the magnetic charging interface is integrated on the oral rinser body and connected to the charging circuit, the magnetic charging interface comprises at least two female PIN pins and a first magnet, the two female PIN pins are arranged side by side and are respectively connected to the positive and negative access ends of the charging circuit, the first magnet has two different magnetic poles arranged out of the plane, the first magnet is located on one side of the two female PIN pins, and the two magnetic poles of the first magnet and the two female PIN pins form an integrated matrix site; A magnetic charging head, the magnetic charging head includes at least two male PIN pins and a second magnet, the positions of the two male PIN pins correspond to the two female PIN pins, the position of the second magnet corresponds to the first magnet and has two different magnetic poles arranged outside the plane, the two magnetic poles of the second magnet and the two magnetic poles of the first magnet attract each other when the positive and negative poles of the male PIN pin and the female PIN pin are positively connected, and repel each other when reversed.

2. The oral cleaning device with reverse charging protection according to claim 1, characterized in that: The first magnet and the second magnet are bar magnets.

3. The oral cleaning device with reverse charging protection according to claim 2, characterized in that: The length of the first magnet is not less than the length of the two female PIN pins arranged side by side; the length of the second magnet is not less than the length of the two male PIN pins arranged side by side.

4. The oral cleaning device with reverse charging protection according to claim 1, characterized in that: The oral cleaner body comprises a movement bracket and a control mainboard, wherein the control mainboard is arranged on the movement bracket, and the charging circuit is integrated on the control mainboard; the magnetic charging interface is arranged on the side of the movement bracket close to the bottom.

5. The oral cleaning device with reverse charging protection according to claim 1, characterized in that: The magnetic charging head also includes a charging head shell, the interior of the charging head shell has a cavity, the second magnet and the male PIN needle are located in the cavity, and the male PIN needle extends outward to form a contact end that contacts the female PIN needle.

6. The oral cleaning device with reverse charging protection according to claim 5, characterized in that: The charging head shell includes a shell body and a waterproof cover. The shell body forms an opening at one end facing the magnetic charging interface. The waterproof cover is arranged at the opening. The waterproof cover has a through hole at a position corresponding to the contact end of the male PIN needle.

7. The oral cleaning device with reverse charging protection according to claim 6, characterized in that: The shell body is cylindrical; the two magnetic poles of the second magnet and the two male PIN needles form an integrated matrix site located at the center of the circular cross section of the shell body.

8. The oral rinser with reverse charging protection according to claim 1, characterized in that: The oral cleaning device body is an electric toothbrush or a water flosser.

9. The oral cleaning device with reverse charging protection according to claim 8, characterized in that: The core support of the oral cleaning device body has a platform area, and the magnetic charging interface is located in the platform area.

10. The oral rinser with reverse charging protection according to claim 1, characterized in that: The first magnet and the second magnet are neodymium iron boron magnets.

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