CN212995173U

CN212995173U - Electric connection structure of oscillating motor of electric toothbrush

Info

Publication number: CN212995173U
Application number: CN202022066853.9U
Authority: CN
Inventors: 陈敏珊; 郭永辉; 祝智胜; 陈广发
Original assignee: Guangzhou Shuke Industrial Co ltd
Current assignee: Guangzhou Shuke Industrial Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-20
Anticipated expiration: 2030-09-18

Abstract

The utility model relates to an electric connection structure of a vibration motor of an electric toothbrush, which comprises a main body, a transmission rod and a vibration motor fixed in the transmission rod, wherein a power supply device is arranged in the main body, the electric connection structure also comprises a DC plug, a DC socket and a fixed cover, the main body forms an insertion groove for the insertion of the transmission rod at one end, the DC socket is fixedly arranged on the main body to ensure that the socket position formed by the DC socket is matched with the insertion groove, and the DC socket is electrically connected with the power supply device; the transmission rod is hollow, an inserting shaft is arranged at one end of the transmission rod, the DC plug is electrically connected with the oscillating motor through a conducting wire, the DC plug is inserted into the DC socket, the inserting shaft can also be inserted into the inserting groove, and the fixing cover covers the inserting position of the transmission rod and the main body to fix the transmission rod on the main body. This application has simplified electric toothbrush's shock motor electric connection structure, improves the production assembly efficiency of product.

Description

Electric connection structure of oscillating motor of electric toothbrush

Technical Field

The utility model relates to an electric toothbrush field, especially an electric toothbrush's shock motor electric connection structure.

Background

The electric toothbrush comprises a holding part, a transmission rod with a vibration motor and a toothbrush brush head sleeved on the transmission rod, wherein the transmission rod is arranged at one end of the holding part during assembly, the vibration motor is electrically connected with a power supply structure in the holding part, and the vibration motor in the transmission rod is supplied with power through the power supply structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem and provide an electric toothbrush's shock motor electric connection structure, this application has simplified electric toothbrush's shock motor electric connection structure, improves the production assembly efficiency of product.

In order to achieve the above purpose, the technical scheme of the utility model has:

an electric connection structure of a vibration motor of an electric toothbrush comprises a main body, a transmission rod and a vibration motor fixed in the transmission rod, wherein a power supply device is arranged in the main body, the electric connection structure also comprises a DC plug, a DC socket and a fixed cover, wherein one end of the main body is provided with an insertion groove for the insertion of the transmission rod, the DC socket is fixedly arranged on the main body, so that the insertion groove is matched with an insertion hole formed by the DC socket, and the DC socket is electrically connected with the power supply device; the transmission rod is hollow, an inserting shaft is arranged at one end of the transmission rod, the DC plug is electrically connected with the oscillating motor through a conducting wire, the DC plug is inserted into the DC socket, the inserting shaft can also be inserted into the inserting groove, and the fixing cover covers the inserting position of the transmission rod and the main body to fix the transmission rod on the main body.

According to the electric connection structure of the oscillating motor of the electric toothbrush, the universal parts such as the DC plug and the DC socket are adopted as the electric connection structure for supplying power to the oscillating motor in the electric toothbrush, so that the electric connection structure is easy to purchase, the rejection rate of the manufactured electric toothbrush is low, and the competitiveness of a product is improved; the DC plug and the DC socket are both circular sockets, and the plugging of the DC plug and the DC socket does not need to be aligned, because the main body fixed by the DC socket does not need to be subjected to fool-proof design, and a vibrating motor connected with the DC plug and a transmission rod indirectly connected with the DC plug do not need to be provided with a fool-proof structure for the DC plug, so that the assembly of the electric toothbrush can be simpler, and the automatic production of the electric toothbrush can be conveniently realized; the transmission rod is also inserted and fixed on the main body through the fixing cover.

Furthermore, the inserting groove is provided with an opening, the size of the opening corresponds to that of the inserting opening, and the DC socket is arranged in the main body corresponding to the lower side of the inserting groove, so that the position of the opening corresponds to that of the inserting opening.

Still further, the main body includes an outer casing and an inner lining support, the power supply unit is mounted on the inner lining support, the insertion groove is formed at one end of the outer casing, and the DC socket is clamped and fixed on the inner lining support and the outer casing corresponding to the insertion groove. A simple fixing structure of a specific DC socket is provided, the DC socket is clamped between the inner bracket and the outer shell, and the socket of the DC socket corresponds to the position of the opening of the plugging groove.

And furthermore, a first circumferential limiting groove and an axial limiting buckle are arranged on the outer wall of the insertion groove, and a first circumferential limiting convex strip and an axial limiting groove matched with the outer wall of the insertion groove are arranged at the lower part of the fixing cover. This structure makes fixed lid when the lid closes the transfer line, through spacing in two directions, can fix in the main part, also fixes the transfer line in the main part simultaneously.

Still further, the main body is provided with a step surface on the outer wall of the insertion groove, the first circumferential limiting groove extends towards the step surface and forms a blind groove, and the first circumferential limiting convex strip is matched with the first circumferential limiting groove in size and extends into the blind groove. This structure can improve the spacing effect between fixed lid and the main part.

Still further, the transmission rod comprises a rod body and an encapsulated part, the lower part of the encapsulated part forms the plug shaft, the plug shaft is provided with a shaft with a semicircular cross section, and the shape of the plug groove is matched with the plug shaft to limit the direction of the plug shaft inserted into the plug groove. The rubber coating part is wrapped outside the rod body to form the insertion shaft, so that the transmission rod and the main body have the only insertion direction, and a sealing structure between the transmission rod and the insertion groove of the main body can be formed.

Furthermore, a second circumferential limiting convex strip is formed at the upper part of the rubber coating part, and a second circumferential limiting groove matched with the second circumferential limiting convex strip for limiting is formed at the upper part of the fixed cover; the middle part of the rubber coating part extends outwards to form a convex ring which is clamped between the fixed cover and the main body. The convex ring is matched with the fixed cover, so that the fixed cover can clamp the rubber coating part to fix the transmission rod, and a sealing structure is formed between the fixed cover and the rubber coating part while the second circumferential limiting convex strip is matched to limit the fixed cover.

Still further, the body of rod and rubber coating part are equipped with the location breach that the position corresponds. The positioning notch facilitates the positioning of the rod body during rubber coating, so that the rubber coating part is formed on the rod body through a rubber coating process.

Still further, the body of rod is provided with arch and the spacing sand grip of third circumference on being close to rubber coating part and not being sheltered from by rubber coating part and fixed lid, still includes the brush head, the orientation of brush head is restricted in the cooperation of brush head with arch and the spacing sand grip of third circumference. Through the structure of the restriction grafting direction that sets up between transfer line and the main part, the structure of the installation direction of the restriction brush head that sets up between the head of deuterogamying and the transfer line for also can fix a position each other between brush head and the main part, make the brush head can be towards the direction that convenience of customers used, generally, can set up the switch of opening in the main part, also towards the direction setting of this switch with the brush hair of brush head, more can convenience of customers' use.

Still further, the DC plug is not directly connected with the transmission rod, and a gap for displacement of the transmission rod during vibration deformation exists between the DC plug and the inner wall of the transmission rod. The DC plug is hung on the oscillating motor through a wire, the oscillating motor is fixed in the hollow interior of the transmission rod, the DC plug is indirectly connected with the transmission rod through the wire, during assembly, the DC plug is firstly inserted into the DC socket, then the transmission rod is inserted into the insertion groove, and the wire is coiled in the hollow interior of the transmission rod.

Drawings

FIG. 1 is a cross-sectional view of the electric toothbrush of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a perspective view of the electric toothbrush of the present invention;

FIG. 4 is an exploded view of the electric toothbrush of the present invention in an enlarged state;

fig. 5 is a perspective view of the fixing cover of the present invention;

fig. 6 is a perspective view of the transmission rod of the present invention;

fig. 7 is a perspective view of the electric toothbrush with a brush head of the present invention.

Detailed Description

The electric connection structure of the oscillating motor of the electric toothbrush of the present invention is described with reference to fig. 1 to 7.

The electric toothbrush shown in fig. 1 to 7 comprises a main body 1, a transmission rod 3, a brush head 4 and a vibration motor 5 fixed in the transmission rod 3, wherein a power supply device 13 is arranged in the main body 1, the power supply device 13 can be a battery and a power supply chip, the transmission rod 3 is covered and fixed on the main body 1 through a fixing cover 2, and the brush head 4 is inserted in the transmission rod 3 and vibrates along with the vibration motor 5. The oscillating motor 5 can be fixed inside the transmission rod 3 by glue.

Due to the limitation of the existing assembly process of the electric toothbrush, the transmission rod 3 and the main body 1 are separately formed and then are fixedly inserted into each other, so that a stable electric connection structure needs to be arranged between the transmission rod 3 and the main body 1 to supply power to the oscillating motor 5 from the main body 1. As shown in fig. 1 to 4, the electrical connection structure further includes a DC plug 6, a DC socket 7 and a fixing cover 2, the main body 1 forms an insertion groove 111 for inserting the transmission rod 3 at one end, the DC socket 7 is fixedly arranged on the main body 1 so that an insertion position formed by the DC socket 7 is matched with the insertion groove 111, and the DC socket 7 is electrically connected with the power supply device 13; the driving rod 3 is hollow and has an insertion shaft 312 at one end, the DC plug 6 is electrically connected to the oscillating motor 5 through a wire, the DC plug 6 is inserted into the DC socket 7 and the insertion shaft 312 can also be inserted into the insertion groove 111, and the fixing cover 2 covers the insertion position of the driving rod 3 and the main body 1 to fix the driving rod 3 on the main body 1.

The DC plug 6 is inserted into the DC socket 7 and the insertion shaft 312 can also be inserted into the insertion groove 111 in a specific form that the DC plug 6 is not directly connected to the driving rod 3, and a gap for displacement of the driving rod 3 when the driving rod 3 is deformed due to vibration exists between the DC plug 6 and the inner wall of the driving rod 3. Namely, the DC plug 6 is hung on the oscillating motor 5 through a wire, the oscillating motor 5 is fixed in the hollow interior of the transmission rod 3, the DC plug 6 is also indirectly connected with the transmission rod 3 through the wire, during assembly, the DC plug 6 is firstly inserted into the DC socket 7, then the transmission rod 3 is inserted into the insertion groove 111, the wire is coiled in the hollow interior of the transmission rod 3, and due to the existence of the gap, when the transmission rod 3 vibrates under the action of the point oscillating motor 5, the DC plug 6 is not touched, so that the interference of the DC plug 6 and the normal electrical connection mechanism of the DC socket 7 is avoided.

As shown in fig. 2 to 7, in order to match the above-mentioned electrical connection structure, a new fixing, limiting and sealing structure among the transmission rod 3, the main body 1, the brush head 4 and the fixing cover 2 is provided, the insertion groove 111 is provided with an opening 112, the size of the opening 112 corresponds to the size of the socket, and the DC socket 7 is disposed inside the main body 1 corresponding to the lower side of the insertion groove 111, so that the position of the opening 112 corresponds to the socket. The main body 1 comprises an outer shell 11 and an inner lining 12 bracket, the power supply device 13 is installed on the inner lining 12 bracket, the insertion groove 111 is formed at one end of the outer shell 11, and the DC socket 7 is clamped and fixed on the inner lining 12 bracket and the outer shell 11 corresponding to the insertion groove 111 in position. A simple fixing structure of the DC outlet 7 in detail is provided, the DC outlet 7 is clamped to each other by the village support and the housing 11, and the inserting hole of the DC outlet 7 is made to correspond to the position of the opening 112 of the inserting groove 111.

The outer wall of the insertion groove 111 is provided with a first circumferential limiting groove 113 and an axial limiting buckle 114, and the lower part of the fixing cover 2 is provided with a first circumferential limiting convex strip 22 and an axial limiting groove 21 which are matched with the outer wall of the insertion groove 111. This structure makes fixed lid 2 when closing transfer line 3, through spacing in two directions, can fix on main part 1, also fixes transfer line 3 on main part 1 simultaneously. The main body 1 is provided with a step surface on the outer wall of the insertion groove 111, the first circumferential limiting groove 113 extends towards the step surface and is formed with a blind groove 115, and the first circumferential limiting protruding strip 22 is matched with the first circumferential limiting groove 113 in size and extends into the blind groove 115. This structure can improve the spacing effect between fixed lid 2 and main part 1.

The driving rod 3 comprises a rod body 32 and an encapsulated part 31, the lower part of the encapsulated part 31 forms the plug shaft 312, the plug shaft 312 is arranged to be a shaft with a semicircular cross section, and the shape of the plug groove 111 is matched with the plug shaft to limit the direction of the plug shaft 312 inserted into the plug groove 111. The encapsulated portion 31 is wrapped outside the rod body 32 and is formed with the insertion shaft 312 so that the driving lever 3 has a unique insertion direction with the main body 1 and also forms a sealing structure between the driving lever 3 and the insertion groove 111 of the main body 1. A second circumferential limiting convex strip 313 is formed at the upper part of the rubber coating part 31, and a second circumferential limiting groove 23 which is matched with the second circumferential limiting convex strip 313 for limiting is formed at the upper part of the fixed cover 2; a convex ring 311 extends outwards from the middle of the rubber coating part 31, and the convex ring 311 is clamped between the fixed cover 2 and the main body 1. The projecting ring 311 cooperates with the stationary cover 2 so that the stationary cover 2 can clamp the rubberized portion 31 to fix the transmission lever 3, and also forms a seal structure between the stationary cover 2 and the rubberized portion 31 while the stationary cover 2 is restrained by the second circumferential restraining projecting strip 313.

The rod body 32 is provided with a protrusion 322 and a third circumferential limiting convex strip 321 on the rod body 32 which is close to the rubber coating part 31 and is not shielded by the rubber coating part 31 and the fixed cover 2, the toothbrush head 4 is further provided with a limiting piece 42 at a corresponding position, and the limiting piece 42 is matched with the protrusion 322 and the third circumferential limiting convex strip 321 to limit the orientation of the toothbrush head 4. Through the structure of the restriction grafting direction that sets up between transfer line 3 and the main part 1, the structure of the installation direction of the restriction brush head 4 that sets up between the head 4 of deuterogamying and the transfer line 3 for also can fix a position each other between brush head 4 and the main part 1, make brush head 4 can be towards the direction that convenience of customers used, generally, can set up the switch of opening in main part 1, also set up the direction of this switch with brush hair 41 of brush head 4, more can convenience of customers's use. Wherein, the bulge 322 is at least arranged at the two axial sides as arc transition or slope transition, which is convenient for the axial positioning and dismounting of the brush head 4.

The rod body 32 and the rubber coating part 31 are provided with positioning notches 33 corresponding to the positions. The positioning notches 33 facilitate the positioning of the stick body 32 during the encapsulation so that the encapsulated portion 31 is formed on the stick body 32 through the encapsulation process.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. An electric connection structure of a vibration motor of an electric toothbrush comprises a main body, a transmission rod and a vibration motor fixed in the transmission rod, wherein a power supply device is arranged in the main body; the transmission rod is hollow, an inserting shaft is arranged at one end of the transmission rod, the DC plug is electrically connected with the oscillating motor through a conducting wire, the DC plug is inserted into the DC socket, the inserting shaft can also be inserted into the inserting groove, and the fixing cover covers the inserting position of the transmission rod and the main body to fix the transmission rod on the main body.

2. The electric connection structure of an oscillating motor of an electric toothbrush according to claim 1, wherein the insertion groove is provided with an opening having a size corresponding to that of the insertion hole, and the DC socket is provided inside the body corresponding to a lower side of the insertion groove such that the position of the opening corresponds to the insertion hole.

3. The electric connection structure of an oscillating motor of an electric toothbrush according to claim 2, wherein the main body includes a housing and a lining bracket, the power supply unit is mounted on the lining bracket, the socket slot is formed at one end of the housing, and the DC socket is clamped and fixed to the lining bracket and the housing corresponding to the socket slot.

4. The electric connection structure of an oscillating motor of an electric toothbrush according to claim 1, wherein the outer wall of the insertion groove is provided with a first circumferential limiting groove and an axial limiting buckle, and the lower portion of the fixing cover is provided with a first circumferential limiting protruding strip and an axial limiting groove which are matched with the outer wall of the insertion groove.

5. The electric connection structure of an oscillating motor of an electric toothbrush according to claim 4, wherein the main body is provided with a step surface on an outer wall of the insertion groove, the first circumferential limiting groove extends toward the step surface and forms a blind groove, and the first circumferential limiting protrusion is matched with the first circumferential limiting groove in size and extends into the blind groove.

6. The electric connection structure of the oscillating motor of the electric toothbrush according to claim 1, 4 or 5, wherein the transmission rod comprises a rod body and an encapsulated portion, the lower portion of the encapsulated portion forms the insertion shaft, the insertion shaft is configured as a shaft with a semicircular cross section, and the shape of the insertion groove is matched with the insertion groove to limit the insertion direction of the insertion shaft into the insertion groove.

7. The electric connection structure of the oscillating motor of the electric toothbrush according to claim 6, wherein a second circumferential limiting convex strip is formed on the upper portion of the encapsulating part, and a second circumferential limiting groove for limiting the upper portion of the fixing cover in cooperation with the second circumferential limiting convex strip is formed on the upper portion of the fixing cover; the middle part of the rubber coating part extends outwards to form a convex ring which is clamped between the fixed cover and the main body.

8. The electric connection structure of the oscillating motor of the electric toothbrush according to claim 6, wherein the rod body and the rubber-coated portion are provided with positioning notches corresponding to the positions of the rod body and the rubber-coated portion.

9. The electric connection structure of the oscillating motor of the electric toothbrush according to claim 6, wherein the shaft body is provided with a protrusion and a third circumferential limiting rib on the shaft body near the encapsulated portion and not covered by the encapsulated portion and the fixed cover, and further comprising a brush head cooperating with the protrusion and the third circumferential limiting rib to limit the orientation of the brush head.

10. The electric connection structure of the oscillating motor of the electric toothbrush according to claim 1, wherein the DC plug is not directly connected to the driving lever, and a gap for displacement of the driving lever when the driving lever is vibrated and deformed exists between the DC plug and an inner wall of the driving lever.