Electric toothbrush and storage case

Abstract

The utility model is suitable for electric toothbrush technical field discloses electric toothbrush and storage box, electric toothbrush includes shell, battery, circuit board, brush head, back cover, battery compartment and vibration component. The utility model discloses through the back cover of electric toothbrush shell tail end on the battery compartment of inserting, and the battery socket is seted up in the upper end of battery compartment, when the user needs to replace battery, the user will pull down the back cover from the shell tail end, can make the battery compartment remove to the outside of shell, and because the upper end of battery compartment is provided with battery socket, therefore battery can be taken out or placed through battery socket, makes the replacement operation of battery very simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, and in particular to an electric toothbrush and its storage box. Background Technology

[0002] Existing electric toothbrushes utilize a high-speed motor or a motor-driven brush head to rotate or vibrate for teeth cleaning. Chinese patent document CN202120068362.X discloses an electric toothbrush comprising a shell and a motor mechanism, the latter including a motor, circuit board, bracket, coil, and battery. The bracket for housing the battery is embedded in the motor's rear cover via protrusions, while the circuit board, electrically connected to the motor and coil, is mounted above the bracket.

[0003] However, when users need to replace the battery, they first need to remove the detachable brush head from the top of the electric toothbrush casing, and then remove the back cover to take out the bracket and motor from inside the casing, which makes the battery replacement operation very complicated and inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide an electric toothbrush and storage box, which aims to solve the problem of complicated and inconvenient battery replacement operation of existing electric toothbrushes.

[0005] To achieve the above objectives, the solution provided by this utility model is as follows:

[0006] An electric toothbrush includes a housing, a battery, a circuit board, a detachable brush head located at the head end of the housing, and a detachable rear cover located at the tail end of the housing. It also includes a battery compartment and a vibration component located inside the housing. The lower end of the battery compartment is fixedly inserted into the rear cover, and the upper end of the battery compartment has a battery socket. The vibration component is located above the battery compartment and is fixedly located inside the housing.

[0007] Optionally, the rear cover includes a cover body and an inner cylinder; the inner cylinder is vertically disposed within the cover body, and the outer wall of the inner cylinder is threadedly connected to or snap-fitted to the inner wall of the outer shell; the lower end of the battery compartment is fixedly inserted into the inner cylinder.

[0008] Optionally, the outer wall of the inner cylinder is provided with a groove in the circumference, and a sealing ring is provided in the groove.

[0009] Optionally, the vibration assembly includes a motor mounting base, a motor mounted on the motor mounting base, and an eccentric wheel connected to the motor drive; the circuit board is vertically fixed on one side of the motor mounting base, and the circuit board is electrically connected to the motor.

[0010] Optionally, the motor mounting base has a first mounting groove and a second mounting groove; the motor is located in the first mounting groove, and the eccentric wheel is located in the second mounting groove; the two opposite groove walls of the first mounting groove are provided with first limiting ribs that contact the motor, and the groove opening of the first mounting groove is provided with an elastic pressing part that contacts the motor, and the elastic pressing part is connected to the groove wall of the first mounting groove.

[0011] Optionally, the lower end of the motor mounting base is provided with a positive contact piece and a first spring piece; both the positive contact piece and the first spring piece are electrically connected to the circuit board; the battery compartment includes a compartment cylinder vertically inserted into the rear cover, a negative contact piece disposed at the bottom of the compartment cylinder, vertical limiting plates mirrored on the outer walls of both sides of the compartment cylinder, and a second spring piece disposed at the top of the compartment cylinder; the first spring piece is used to conduct electricity with the second spring piece; the second spring piece is electrically connected to the negative contact piece.

[0012] Optionally, the electric toothbrush further includes an LED bead; the LED bead is electrically connected to the circuit board; a light guide cover is fixedly provided at the head end of the outer shell; the brush head includes a transparent brush head body and bristles; the transparent brush head body is fixedly disposed on the light guide cover; and the LED bead is fixedly disposed below the light guide cover.

[0013] Optionally, the bottom of the light guide cover has a first receiving cavity facing upward, and the upper end of the lamp bead is located in the first receiving cavity; the bottom of the transparent brush head body has a second receiving cavity facing upward, and the upper end of the light guide cover is located in the second receiving cavity.

[0014] This utility model also provides a storage box for storing the electric toothbrush. The storage box includes a base and a toothbrush cover on the base. The base includes a sleeve and a supporting inner cylinder. The upper part of the supporting inner cylinder is provided with a toothbrush insertion port, and the top edge of the supporting inner cylinder is connected to the top edge of the sleeve.

[0015] Optionally, the base has a retaining plate on its bottom outer wall, and the toothbrush cover is a cylindrical cover with an opening at the bottom; the bottom outer wall of the cylindrical cover has a first slot for the retaining plate to be inserted.

[0016] Beneficial effects:

[0017] This utility model provides an electric toothbrush with a battery compartment inserted into the rear cover at the tail end of the toothbrush casing. A battery socket is provided at the top of the battery compartment. When the user needs to replace the battery, the user can remove the rear cover from the tail end of the casing to move the battery compartment outside the casing. Since there is a battery socket at the top of the battery compartment, the battery can be removed or placed through the battery socket, making the battery replacement operation very simple and convenient.

[0018] In addition, the battery port at the top of the battery compartment ensures that the battery inside the battery compartment can communicate with the vibration component when the battery compartment is inside the outer shell, so that the electric toothbrush can work normally. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the electric toothbrush provided by this utility model.

[0021] Figure 2 This is a cross-sectional view of the electric toothbrush provided by this utility model.

[0022] Figure 3 yes Figure 2 Enlarged view of section A.

[0023] Figure 4 yes Figure 2 Enlarged view of section B.

[0024] Figure 5 This is a cross-sectional view of the outer shell.

[0025] Figure 6 This is a schematic diagram of the outer shell.

[0026] Figure 7 The relative positional relationship between the battery compartment and the vibration component. Figure 1 .

[0027] Figure 8 yes Figure 7 Enlarged view of section C.

[0028] Figure 9 The relative positional relationship between the battery compartment and the vibration component. Figure 2 .

[0029] Figure 10 This is a schematic diagram of the structure of the vibration component.

[0030] Figure 11 This is a structural schematic diagram of the storage box provided by this utility model.

[0031] Figure 12 This is a schematic diagram of the electric toothbrush provided by this utility model inserted into the base.

[0032] Figure 13This is a schematic diagram of the toothbrush cap.

[0033] Explanation of icon numbers:

[0034] 1-Outer shell; 101-Second slot; 102-Second limiting rib; 103-Third slot;

[0035] 2-Battery; 3-Circuit board;

[0036] 4-Brush head; 41-Transparent brush head body; 411-Second cavity; 42-Brush bristles;

[0037] 5-Back cover; 51-Cover body; 52-Inner cylinder; 521-Groove;

[0038] 6-Battery compartment; 61-Compartment cylinder; 62-Negative electrode contact piece; 63-Vertical limiting plate; 64-Second spring;

[0039] 7-Vibration assembly; 71-Motor mounting base; 711-First mounting groove; 712-Second mounting groove; 713-First limiting rib; 714-Elastic compression part; 715-Positive contact piece; 716-First spring; 72-Motor; 73-Eccentric wheel;

[0040] 8-Sealing ring;

[0041] 9-Light guide cover; 91-First receiving cavity;

[0042] 10-LED beads;

[0043] 11-Base; 111-Sleeve section; 112-Inner support cylinder; 113-Clamping plate;

[0044] 12- Toothbrush cap; 121- First slot;

[0045] 13-Snap fastener. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0048] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0049] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0050] Please see Figures 1 to 10 This utility model provides an electric toothbrush, including a shell 1, a battery 2, a circuit board 3, a brush head 4, a back cover 5, a battery compartment 6, and a vibration component 7.

[0051] Specifically, the brush head 4 is detachably mounted on the head end of the outer casing 1; the rear cover 5 is detachably mounted on the tail end of the outer casing 1 (here, the tail end refers to the end located in the palm of the hand when holding the electric toothbrush). The battery 2 is installed in the battery compartment 6; the lower end of the battery compartment 6 is fixedly inserted into the rear cover 5, and the upper end of the battery compartment 6 has a battery 2 insertion port. When the rear cover 5 is mounted on the tail end of the outer casing 1, the battery compartment 6 is located inside the outer casing 1. The vibration component 7 is fixedly installed inside the outer casing 1, and the vibration component 7 is located above the battery compartment 6. Furthermore, the vibration component 7 is electrically connected to the battery 2. When the vibration component 7 is working, it can transmit power to the brush head 4, causing the brush head 4 to vibrate or rotate at high speed.

[0052] This invention features a battery compartment 6 inserted into the rear cover 5 at the tail end of the electric toothbrush housing 1, with a battery 2 slot at the upper end of the battery compartment 6. When the user needs to replace the battery 2, the user can remove the rear cover 5 from the tail end of the housing 1, allowing the battery compartment 6 to be moved outside the housing 1. Furthermore, since the battery compartment 6 has a battery 2 slot at the upper end, the battery 2 can be removed or placed through the battery 2 slot, making the battery replacement operation very simple and convenient.

[0053] In addition, the battery 2 socket at the top of the battery compartment 6 ensures that when the battery compartment 6 is inside the outer shell 1, the battery 2 inside the battery compartment 6 can be connected to the vibration component 7, so that the electric toothbrush can work normally.

[0054] In an optional embodiment, the rear cover 5 includes a cover body 51 and an inner cylinder 52; the inner cylinder 52 is vertically disposed inside the cover body 51, and the outer wall of the inner cylinder 52 is threadedly connected to the inner wall of the outer shell 1 or connected by a buckle 13 (hereinafter, the buckles 13 are all made of elastic plastic). More preferably, the outer wall of the inner cylinder 52 is connected to the inner wall of the outer shell 1 by a buckle 13. The buckle 13 connection can play a positioning role for the rear cover 5 and the battery compartment 6. When the rear cover 5 is installed, the battery compartment 6 can also be installed in place inside the outer shell 1, thereby ensuring that the battery 2 in the battery compartment 6 can be connected to the vibration component 7.

[0055] like Figure 7 As shown, in order to fix the lower end of the battery compartment 6 into the inner cylinder 52, a buckle 13 is provided on the outer wall of the battery compartment 6. By engaging the buckle 13 with the inner wall of the inner cylinder 52, the lower end of the battery compartment 6 can be fixedly inserted into the back cover 5, thereby ensuring that the battery compartment 6 can be pulled out of the outer shell 1 along with the back cover 5.

[0056] like Figure 2 , Figure 3 as well as Figure 6 As shown, when the inner cylinder 52 and the outer shell 1 are connected by the buckle 13, the inner wall of the outer shell 1 is provided with a third slot 103. The third slot 103 is shaped like a 7, and the lower part of the third slot 103 is wider than the buckle 13 provided on the outer wall of the inner cylinder 52. This allows the inner cylinder 52 to be blindly inserted to a certain extent, so that the buckle 13 on the outer wall of the inner cylinder 52 can be quickly inserted into the third slot 103 from the lower part of the third slot 103.

[0057] like Figure 3 As shown, in an optional embodiment, a groove 521 is provided circumferentially on the outer wall of the inner cylinder 52, and a sealing ring 8 is provided in the groove 521. After the rear cover 5 is fixed to the tail end of the outer shell 1, the sealing ring 8 contacts the inner wall of the outer shell 1, thereby playing a waterproof role. When the user uses the electric toothbrush to brush their teeth, the water adsorbed on the outer wall of the outer shell 1 will not seep into the interior of the outer shell 1 through the connection between the outer shell 1 and the rear cover 5, and will not damage the electrical components inside the outer shell 1, thereby extending the service life of the electric toothbrush.

[0058] like Figure 2 and Figure 10As shown, in an optional embodiment, the vibration assembly 7 includes a motor mounting base 71, a motor 72 mounted on the motor mounting base 71, and an eccentric wheel 73 driven by the motor 72. When the motor 72 is energized, the current generates a magnetic field through the coil, which interacts with the permanent magnet to drive the rotor to rotate, thereby causing the eccentric wheel 73 to rotate at high speed. When the eccentric wheel 73 rotates and vibrates, this vibration is transmitted to the motor mounting base 71 and the outer casing 1 fixedly connected to the motor mounting base 71, causing the brush head 4 mounted at the head end of the outer casing 1 to also begin to vibrate. The circuit board 3 is vertically fixed to one side of the motor mounting base 71, and the circuit board 3 is electrically connected to the motor 72. Compared to mounting the circuit board 3 in the battery compartment 6, in this embodiment, when the circuit board 3 electrically connected to the motor 72 is mounted on one side of the motor mounting base 71, the motor mounting base 71 does not need to be moved out of the outer casing 1 along with the battery compartment 6, making battery replacement convenient. Simultaneously, the motor mounting base 71 can be connected to the inner wall of the outer casing 1 (through the second slot 101, such as...) via the flared buckles 13 on both sides. Figure 5 (As shown) Snap-on (e.g.) Figure 9 As shown, this allows the motor mounting base 71 to be fixed inside the housing 1, the motor mounting base 71 to be tightly connected to the housing 1, and the vibration generated by the eccentric wheel 73 to be transmitted to the brush head 4.

[0059] like Figure 5 As shown, in an optional embodiment, the inner wall of the outer shell 1 is provided with multiple second limiting ribs 102. After the motor mounting base 71 is fixed inside the outer shell 1, the outer surface of the motor mounting base 71 can also abut against the second limiting ribs 102. Thus, the limiting effect of the second limiting ribs 102 ensures that the motor mounting base 71 cannot move inside the outer shell 1, and the motor mounting base 71 and the outer shell 1 can be tightly connected. When the electric toothbrush is working, it will not generate too much noise.

[0060] like Figure 10 As shown, in an optional embodiment, the motor mounting base 71 has a first mounting groove 711 and a second mounting groove; the motor 72 is disposed in the first mounting groove 711, and the eccentric wheel 73 is disposed in the second mounting groove 712, and is connected to the motor 72 via the motor rotor; the two opposite groove walls of the first mounting groove 711 are provided with first limiting ribs 713 that contact the motor 72, and the groove opening of the first mounting groove 711 is provided with an elastic pressing part 714 that contacts the motor 72, and the elastic pressing part 714 is connected to the groove wall of the first mounting groove 711. Through the limiting effect of the first limiting ribs 713 and the pressing effect of the elastic pressing part 714, the motor 72 can still be firmly installed in the first mounting groove 711 when the eccentric wheel 73 vibrates at high speed, without loosening, which can reduce the risk of damage to the electrical components inside the housing 1.

[0061] Understandably, the first limiting rib 713 is a plastic elastic component, which allows both sides of the motor 72 to be pressed by the first limiting rib 713 and not loosen.

[0062] like Figure 2 , Figure 7 , Figure 8 as well as Figure 9 As shown, in an optional embodiment, the lower end of the motor mounting base 71 is provided with a positive contact piece 715 and a first spring piece 716; both the positive contact piece 715 and the first spring piece 716 are electrically connected to the circuit board 3; the battery compartment 6 includes a compartment cylinder 61 vertically inserted into the rear cover 5, a negative contact piece 62 disposed at the bottom of the compartment cylinder 61, vertical limiting plates 63 mirror-image disposed on the outer walls of both sides of the compartment cylinder 61, and a second spring piece 64 disposed at the top of the compartment cylinder 61.

[0063] Specifically, when the rear cover 5 with battery compartment 6 is installed at the tail end of the outer casing 1, the positive terminal of the battery 2 inside the battery compartment 6 contacts the positive contact piece 715, and the first spring 716 contacts the second spring 64 to conduct electricity; the second spring 64 is electrically connected to the negative contact piece 62 through a cable. In this way, the battery 2, the positive contact piece 715, the circuit board 3, the second spring 64, the first spring 716, and the negative contact piece 62 can form a closed circuit (when the switch on the circuit board 3 is pressed), thereby ensuring that power can be supplied to the motor 72 through the circuit board 3.

[0064] Specifically, the vertical limiting plate 63 can contact the inner wall of the outer shell 1, which can restrict the horizontal movement of the compartment 61 within the outer shell 1. When the electric toothbrush is working, the lower end of the battery compartment 6 still maintains a reliable connection with the rear cover 5, so that the battery 2 can normally supply power to the circuit board.

[0065] Specifically, the positive contact 715 can be fixed to the bottom of the motor mounting base 71 by the snap-fit ​​structure 13, and the first spring 716 can be inserted by providing a slot at the bottom of the motor mounting base 71, and the second spring 64 can be socketed by providing a slot at the top of the chamber 61. Figure 8 (As shown). Since the battery 2 and the circuit board 3 can be connected after the second spring 64 contacts the first spring 716, there is no need to run a wire from the motor mounting bracket 71 to the battery compartment 6, thus ensuring that the battery compartment 6 can be removed from the outer casing 1 independently, making it convenient for the user to replace the battery 2.

[0066] like Figure 1 , Figure 2 as well as Figure 4As shown, in an optional embodiment, the electric toothbrush further includes an LED bead 10; the LED bead 10 is electrically connected to the circuit board 3; a light guide cover 9 is fixedly provided at the head end of the outer shell 1; the brush head 4 includes a transparent brush head body 41 and bristles 42; the transparent brush head body 41 is fixedly disposed on the light guide cover 9; and the LED bead 10 is fixedly disposed below the light guide cover 9. When the electric toothbrush is working, the circuit board 3 can supply power to the LED bead 10, enabling the LED bead 10 to produce light of different colors; and the light guide cover 9 can guide the various colors of light produced by the LED bead 10 to the transparent brush head body 41, providing a better user experience when brushing teeth with the electric toothbrush.

[0067] Specifically, the light guide cover 9 and the transparent brush head body 41 can be made of PETG material.

[0068] In an optional embodiment, the bottom of the light guide cover 9 has a first receiving cavity 91 opening upwards, and the upper end of the lamp bead 10 is located in the first receiving cavity 91. When the lamp bead 10 emits light, the light can be directly and concentratedly injected into the light guide cover 9, reducing light scattering and loss, improving the efficiency of light transmission, and enabling more light to be effectively utilized. The bottom of the transparent brush head body 41 has a second receiving cavity opening upwards, and the upper end of the light guide cover 9 is located in the second receiving cavity. The setting of the second receiving cavity makes the light emitted from the light guide cover 9 more concentratedly illuminate the transparent brush head body 41, thereby improving the lighting effect of the brush head 4.

[0069] Specifically, the light guide hood 9 can be fixed to the inner wall of the head end of the housing 1 via a threaded connection or an elastic snap-fit ​​13 structure. The upper part of the light guide hood 9 can also be engaged with the inner wall of the second receiving cavity via the elastic snap-fit ​​13, thereby allowing the brush head 4 to be fixed to the head end of the housing 1 by means of the light guide hood 9. When the light guide hood 9 is fixed to the inner wall of the head end of the housing 1 via the elastic snap-fit ​​13 structure, the slot that mates with the elastic snap-fit ​​13 structure can also be as follows: Figure 6 The third slot 103 shown is designed to facilitate the disassembly and assembly of the brush head 4, and to enable the maintenance and replacement of the LED beads 10 below the light guide cover 9.

[0070] like Figures 11 to 13As shown, this utility model also provides a storage box for storing the electric toothbrush. The storage box includes a base 11 and a toothbrush cover 12 covering the base 11. The base 11 includes a sleeve portion 111 and a supporting inner cylinder 112. The upper part of the supporting inner cylinder 112 is provided with a toothbrush insertion port, and the top edge of the supporting inner cylinder 112 is connected to the top edge of the sleeve portion 111. By providing the supporting inner cylinder 112 inside the sleeve portion 111, the supporting inner cylinder 112 provides a stable support point for the electric toothbrush. Even if the bottom of the electric toothbrush is not completely parallel to the horizontal plane, it can still be securely inserted into the base 11, ensuring that the electric toothbrush with a bottom not completely parallel to the horizontal plane can be placed vertically on the washstand.

[0071] In an optional embodiment, the bottom outer wall of the base 11 is provided with a retaining plate 113, and the toothbrush cover 12 is a cylindrical cover with an opening at the bottom; the bottom outer wall of the cylindrical cover has a first slot 121 for the retaining plate 113 to be inserted into. The engaging design of the retaining plate 113 and the first slot 121 ensures that the toothbrush cover 12 can be securely placed on the base 11, preventing it from falling off or shaking, thus enhancing the overall stability of the storage box and protecting the electric toothbrush stored inside from external influences. At the same time, it improves the sealing of the storage box to a certain extent, preventing dust, moisture, etc. from entering the storage box, allowing users to carry the electric toothbrush with them, for example, by placing it in a suitcase. In addition, the retaining plate 113 can position the first slot 121, allowing users to quickly assemble the toothbrush cover 12 and the base 11.

[0072] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electric toothbrush, comprising a housing (1), a battery (2), a circuit board (3), a brush head (4) detachably disposed at the head end of the housing (1), and a rear cover (5) detachably disposed at the tail end of the housing (1), characterized in that, It also includes a battery compartment (6) and a vibration component (7) located inside the outer shell (1); the lower end of the battery compartment (6) is fixedly inserted into the rear cover (5), and the upper end of the battery compartment (6) is provided with a battery socket (611); the vibration component (7) is located above the battery compartment (6), and the vibration component (7) is fixedly installed inside the outer shell (1).

2. The electric toothbrush according to claim 1, characterized in that, The rear cover (5) includes a cover body (51) and an inner cylinder (52); the inner cylinder (52) is vertically disposed inside the cover body (51), and the outer wall of the inner cylinder (52) is threaded or snapped to the inner wall of the outer shell (1); the lower end of the battery compartment (6) is fixedly inserted into the inner cylinder (52).

3. The electric toothbrush according to claim 2, characterized in that, The outer wall of the inner cylinder (52) is provided with a groove (521) in the circumferential direction, and a sealing ring (8) is provided in the groove (521).

4. The electric toothbrush according to claim 1, characterized in that, The vibration assembly (7) includes a motor mounting base (71), a motor (72) mounted on the motor mounting base (71), and an eccentric wheel (73) that is connected to the motor (72) for transmission; the circuit board (3) is vertically fixed on one side of the motor mounting base (71), and the circuit board (3) is electrically connected to the motor (72).

5. The electric toothbrush according to claim 4, characterized in that, The motor mounting base (71) is provided with a first mounting groove (711) and a second mounting groove (712); the motor (72) is located in the first mounting groove (711), and the eccentric wheel (73) is located in the second mounting groove (712); the two opposite groove walls of the first mounting groove (711) are provided with a first limiting rib (713) that contacts the motor (72), and the groove opening of the first mounting groove (711) is provided with an elastic extrusion part (714) that contacts the motor (72), and the elastic extrusion part (714) is connected to the groove wall of the first mounting groove (711).

6. The electric toothbrush according to claim 4, characterized in that, The lower end of the motor mounting base (71) is provided with a positive contact piece (715) and a first spring piece (716); the positive contact piece (715) and the first spring piece (716) are both electrically connected to the circuit board (3); the battery compartment (6) includes a compartment cylinder (61) vertically inserted into the rear cover (5), a negative contact piece (62) located at the bottom of the compartment cylinder (61), vertical limiting plates (63) mirror images of each other located on the outer walls of both sides of the compartment cylinder (61), and a second spring piece (64) located at the top of the compartment cylinder (61); the first spring piece (716) is used to conduct electricity with the second spring piece (64); the second spring piece (64) is electrically connected to the negative contact piece (62).

7. The electric toothbrush according to claim 1, characterized in that, It also includes LED beads (10); the LED beads (10) are electrically connected to the circuit board (3); a light guide cover (9) is fixedly provided at the head end of the outer shell (1); the brush head (4) includes a transparent brush head body (41) and brush bristles (42); the transparent brush head body (41) is fixedly provided on the light guide cover (9); the LED beads (10) are fixedly provided below the light guide cover (9).

8. The electric toothbrush according to claim 7, characterized in that, The bottom of the light guide cover (9) is provided with a first receiving cavity (91) facing upward, and the upper end of the lamp bead (10) is located in the first receiving cavity (91); the bottom of the transparent brush head body (41) is provided with a second receiving cavity (411) facing upward, and the upper end of the light guide cover (9) is located in the second receiving cavity (411).

9. A storage box, characterized in that, For storing the electric toothbrush according to any one of claims 1-8, the storage box includes a base (11) and a toothbrush cover (12) covering the base (11); the base (11) includes a sleeve portion (111) and a supporting inner cylinder (112), the upper part of the supporting inner cylinder (112) is provided with a toothbrush insertion port, and the top edge of the supporting inner cylinder (112) is connected to the top edge of the sleeve portion (111).

10. The storage box according to claim 9, characterized in that, The base (11) has a card plate (113) on its bottom outer wall, and the toothbrush cover (12) is a cylindrical cover with an opening at the bottom; the bottom outer wall of the cylindrical cover has a first card slot (121) for the card plate (113) to be inserted.

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