CN214679061U

CN214679061U - Heater for oral cleaning device

Info

Publication number: CN214679061U
Application number: CN202120300285.6U
Authority: CN
Inventors: 刘飞; 陆志艳
Original assignee: Shanghai Feixiang Health Technology Co Ltd
Current assignee: Shanghai Feixiang Health Technology Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-12
Anticipated expiration: 2031-02-02

Abstract

The utility model provides a heater for an oral cavity cleaning device, which comprises a shell, a first joint with a first channel, a second joint with a second channel and a heating tube positioned in the shell, wherein the first joint is fixedly connected with one end of the shell, the second joint is fixedly connected with the other end of the shell, two ends of the heating tube are respectively embedded in a first limiting groove of the first joint and a second limiting groove of the second joint, and the two ends of the heating tube are respectively communicated with the first channel and the second channel, a first joint sealing ring is arranged between the first joint and the shell, a second joint sealing ring is arranged between the second joint and the shell, a first heating tube sealing ring is arranged between the side wall of the first limiting groove and the heating tube, a second heating tube sealing ring is arranged between the side wall of the second limiting groove and the heating tube, and a sealing space is formed among the inner wall of the shell, the outer wall of the heating tube, the first joint and the second joint. The heater has longer service life and can quickly heat water flowing through.

Description

Heater for oral cleaning device

Technical Field

The utility model relates to an oral cavity belt cleaning device especially relates to a heater for oral cavity belt cleaning device.

Background

Most of the existing tooth flushing devices are common heaters arranged at the bottom of the inside of a water storage tank, when the tooth flushing devices are used, the heaters need to heat water in the whole water storage tank, and the tooth flushing devices are high in power consumption and low in heating efficiency after being used for a long time and are difficult to heat the used water to a set temperature quickly. In addition, the heating element on the heater in the existing tooth rinsing device is usually directly exposed to the external environment, and the use environment of the tooth rinsing device is usually humid, so that the aging of the heater is easily accelerated after long-term use, the insulation property of the heater is reduced, the service life of the heater and the tooth rinsing device is short, and the safety is also influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a heater for an oral cavity cleaning device with a longer service life.

In order to achieve the above object, the present invention provides a heater for an oral cavity cleaning device, comprising a housing, a first joint having a first channel, a second joint having a second channel, and a heating tube located in the housing, wherein the first joint is fixedly connected with one end of the housing, the second joint is fixedly connected with the other end of the housing, two ends of the heating tube are respectively embedded in a first limiting groove of the first joint and a second limiting groove of the second joint, and two ends of the heating tube are respectively communicated with the first channel and the second channel, a first joint sealing ring is arranged between the first joint and the housing, a second joint sealing ring is arranged between the second joint and the housing, a first heating tube sealing ring is arranged between a side wall of the first limiting groove and the heating tube, a second heating tube sealing ring is arranged between a side wall of the second limiting groove and the heating tube, and a sealed space is formed among the inner wall of the shell, the outer wall of the heating tube, the first joint and the second joint.

Furthermore, the shell is made of metal.

Furthermore, the shell is provided with air holes, and waterproof and breathable films are arranged at the air holes.

Further, the waterproof breathable film is fixed on the inner wall of the shell.

Further, install first temperature sensor on the first joint, first temperature sensor's sense terminal stretches into to first passageway, install second temperature sensor on the second joint, second temperature sensor's sense terminal stretches into to the second passageway.

Further, the first joint comprises a first mating portion embedded in the housing, the first joint seal ring being located between the first mating portion and the housing; the second fitting includes a second mating portion embedded in the housing, and the second fitting seal ring is positioned between the second mating portion and the housing.

Furthermore, a first positioning groove is formed in the first matching part, and the first joint sealing ring is embedded in the first positioning groove; and a second positioning groove is formed in the second matching part, and the second joint sealing ring is embedded in the second positioning groove.

Furthermore, the first joint also comprises a first cover plate part fixedly connected with the first matching part, the first cover plate part is contacted with one end face of the shell, and the first cover plate part is fixedly connected with one end of the shell through a bolt; the second joint further comprises a second cover plate part fixedly connected with the second matching part, the second cover plate part is in contact with the other end face of the shell, and the second cover plate part is fixedly connected with the other end of the shell through a bolt.

Further, the heater for the oral cavity cleaning device further comprises a temperature fuse electrically connected with the heating tube, the temperature fuse is connected with the heating tube in series, and the temperature fuse is located in the sealed space.

Further, the heater for the oral cavity cleaning device further comprises a resettable temperature controller electrically connected with the heating tube, the resettable temperature controller is connected with the heating tube in series, and the resettable temperature controller is located in the sealed space.

As described above, the heater for an oral cavity cleaning device according to the present invention has the following advantageous effects:

when the heater works, cleaning liquid flows into the heating pipe through the first channel of the first joint, the heating pipe heats the cleaning liquid flowing through the heating pipe, and the heated cleaning liquid flows out through the second channel of the second joint, so that the cleaning liquid is heated. And the outside of the heating tube forms a sealed space, and moisture in the external environment can be effectively prevented from entering, so that the heating tube is prevented from being exposed in a humid environment for a long time, the aging of the heating tube is prevented from being accelerated, the insulativity of the heating tube is prevented from being influenced, and the service life and the safety of the heating tube and the heater are further improved. The heater for the oral cavity cleaning device has the advantages of simple structure, small volume, convenience in assembly and low production cost while realizing sealing.

Drawings

Fig. 1 is a schematic structural view of an oral cavity cleaning device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a heater for an oral cavity cleaning device according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a heater for an oral cleaning device according to an embodiment of the present invention.

Fig. 4 is an enlarged view of circle a in fig. 3.

Fig. 5 is a schematic front view of a heater for an oral cleaning device according to an embodiment of the present invention.

FIG. 6 is a schematic sectional view taken along line B-B in FIG. 5.

Fig. 7 is an exploded view of a heater for an oral cleaning device according to an embodiment of the present invention.

Description of the element reference numerals

1 second cover part of housing 224

11 air holes 3 heating tube

12 waterproof breathable film 41 first joint sealing ring

21 first joint 42 second joint sealing ring

211 first channel 51 first heat-generating pipe sealing ring

212 first limit groove 52 second heating tube sealing ring

213 first fitting part 6 sealing space

214 first cover plate part 71 first temperature sensor

22 second connector 72 second temperature sensor

221 second channel 81 temperature fuse

222 second limiting groove 82 resettable thermostat

223 second mating portion

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the modifications can be changed or adjusted without substantial technical changes and modifications.

As shown in fig. 1 to 7, the present embodiment provides a heater for an oral cavity cleaning device, which includes a housing 1, a first joint 21 having a first channel 211, a second joint 22 having a second channel 221, and a heating tube 3 located in the housing 1, wherein the first joint 21 is fixedly connected to one end of the housing 1, the second joint 22 is fixedly connected to the other end of the housing 1, two ends of the heating tube 3 are respectively embedded in a first limiting groove 212 of the first joint 21 and a second limiting groove 222 of the second joint 22, two ends of the heating tube 3 are respectively communicated with the first channel 211 and the second channel 221, a first joint sealing ring 41 is disposed between the first joint 21 and the housing 1, a second joint sealing ring 42 is disposed between the second joint 22 and the housing 1, a first heating tube sealing ring 51 is disposed between a side wall of the first limiting groove 212 and the heating tube 3, a second heating tube sealing ring 52 is disposed between a side wall of the second limiting groove 222 and the heating tube 3, a sealed space 6 is formed between the inner wall of the housing 1, the outer wall of the heat generating tube 3, the first joint 21 and the second joint 22. When the heater works, cleaning liquid flows into the heating tube 3 through the first channel 211 of the first joint 21, the heating tube 3 heats the cleaning liquid flowing through the heating tube, and the heated cleaning liquid flows out through the second channel 221 of the second joint 22, so that the cleaning liquid is heated. And the outside of heating tube 3 forms confined space 6, can prevent effectively that moisture etc. from getting into in the external environment to prevent that heating tube 3 from exposing for a long time in humid environment, avoid accelerating the ageing of heating tube 3, and cause the influence to heating tube 3's insulating nature, and then improve heating tube 3 and this heater's life and security. The heater for the oral cavity cleaning device has the advantages of simple structure, small volume, convenience in assembly and low production cost while realizing sealing.

The material of shell 1 in this embodiment is the metal to guarantee that shell 1 has higher intensity, and make shell 1 have good heat dispersion, in order to in time to disperse the heat in confined space 6, thereby avoid heating tube 3 self high temperature to influence its normal work.

As shown in fig. 3 and 4, in the present embodiment, the casing 1 is provided with a vent hole 11, and a waterproof breathable film 12 is disposed at the vent hole 11. When the heating tube 3 generates heat and heats the cleaning solution in the heating tube, the air pressure of the sealed space 6 can be increased, the air in the sealed space 6 can flow out to the outside through the air holes 11 in the process, so that the air pressure in the sealed space 6 is prevented from being too high, and after the heating tube 3 stops heating, the outside air can flow into the sealed space 6 through the air holes 11. The air holes 11 play a role in balancing the air pressure inside and outside the shell 1, and avoid overhigh air pressure in the sealed space 6 when the heating tube 3 generates heat. And the waterproof breathable film 12 can effectively prevent external moisture and the like from entering the sealed space 6 and keep the sealed space 6 dry. As shown in fig. 4, the waterproof breathable film 12 in this embodiment is specifically fixed on the inner wall of the case 1 to prevent the waterproof breathable film 12 from being easily touched by external objects, falling off, and the like. And a plurality of air holes 11 are arranged on the shell 1, and waterproof breathable films 12 are arranged at all the air holes 11.

As shown in fig. 2, 5 and 7, in the present embodiment, the first joint 21 is provided with the first temperature sensor 71, a detection end of the first temperature sensor 71 extends into the first channel 211, the second joint 22 is provided with the second temperature sensor 72, and a detection end of the second temperature sensor 72 extends into the second channel 221. The first temperature sensor 71 can directly detect the temperature of the cleaning liquid flowing into the heat generating tube 3 through the first joint 21, and the second temperature sensor 72 can directly detect the temperature of the cleaning liquid flowing out of the heat generating tube 3 through the second joint 22. In this embodiment, the first temperature sensor 71 and the second temperature sensor 72 are both electrically connected to the control unit, and the control unit is electrically connected to the heat generating tube 3. The control unit can accurately control the working state of the heating tube 3 according to the temperature values fed back by the first temperature sensor 71 and the second temperature sensor 72, so as to ensure that the temperature of the cleaning liquid flowing out of the heating tube 3 reaches the set requirement.

As shown in fig. 2 and 7, the first joint 21 in this embodiment includes a first fitting portion 213, the first fitting portion 213 is embedded in the housing 1, and the first joint seal ring 41 is located between the first fitting portion 213 and the housing 1; the second joint 22 includes a second fitting portion 223, the second fitting portion 223 being embedded in the housing 1, and the second joint seal ring 42 being located between the second fitting portion 223 and the housing 1. Meanwhile, as shown in fig. 2 and 7, in the present embodiment, the first matching portion 213 is provided with a first positioning groove, and the first joint sealing ring 41 is embedded in the first positioning groove, so that the first positioning groove is utilized to position the first joint sealing ring 41, and the first joint sealing ring 41 is limited from moving in the left-right direction relative to the first joint 21; the second fitting portion 223 is provided with a second positioning groove, and the second joint sealing ring 42 is embedded in the second positioning groove, so that the second positioning groove is utilized to position the second joint sealing ring 42, and the second joint sealing ring 42 is limited from moving in the left-right direction relative to the second joint 22. In addition, as shown in fig. 2 and fig. 7, in the present embodiment, the first joint 21 further includes a first cover plate portion 214 fixedly connected to the first matching portion 213, the first cover plate portion 214 contacts with an end surface of the housing 1, and the first cover plate portion 214 is fixedly connected to one end of the housing 1 through a bolt, so as to fixedly mount the first joint 21 on one end of the housing 1; the second joint 22 further includes a second cover plate 224 fixedly connected to the second fitting portion 223, the second cover plate 224 contacts with the other end surface of the housing 1, and the second cover plate 224 is fixedly connected to the other end of the housing 1 through a bolt, so as to fixedly mount the second joint 22 at the other end of the housing 1. And the structural design of the cover plate part and the matching part is adopted, so that the sealing matching between the joint and the shell 1 is convenient to realize, and the fixed connection between the joint and the shell 1 is also convenient to realize. The cross-sectional shapes of the first fitting portion 213 and the second fitting portion 223 in the present embodiment are the same as the cross-sectional shape of the inner wall of the housing 1.

As shown in fig. 2 and 7, the heater for an oral cavity cleaning device in this embodiment further includes a thermal fuse 81 electrically connected to the heat-generating tube 3, the thermal fuse 81 is connected in series with the heat-generating tube 3, and the thermal fuse 81 is located in the sealed space 6. When the temperature of the heating tube 3 reaches the first set temperature, the thermal fuse 81 will be fused, and the heating tube 3 is powered off, so as to prevent the cleaning liquid from being heated to a too high temperature. Meanwhile, as shown in fig. 2, the heater for the oral cavity cleaning device in this embodiment further includes a resettable temperature controller 82 electrically connected to the heating tube 3, the resettable temperature controller 82 is connected in series with the heating tube 3, and the resettable temperature controller 82 is located in the sealed space 6. When the temperature of the heating tube 3 reaches the second set temperature, the resettable temperature controller 82 is turned off, so that the heating tube 3 is powered off, the heating temperature of the cleaning liquid is prevented from being too high, and when needed, the resettable temperature controller 82 is reset, so that the resettable temperature controller 82 can be restored to the on state, and the product maintenance cost can be reduced. In this embodiment, the first set temperature is higher than the second set temperature, and the temperature limit of the thermal fuse 81 is higher than that of the resettable temperature controller 82. In this embodiment, the temperature fuse 81 is located at the live wire end of the heating tube 3, and the resettable temperature controller 82 is located at the neutral wire end of the heating tube 3. In this embodiment, a temperature fuse 81 and a resettable temperature controller 82 are attached to the upper and lower surfaces of the heating tube 3, respectively.

In addition, in other embodiments, the first temperature sensor 71 and the second temperature sensor 72 may be disposed in the water inlet and outlet pipes, and the temperature sensor may be disposed only at the water outlet of the heat generating pipe 3.

The heater for the oral cavity cleaning device can be used in a very humid environment, and can effectively prevent the heating tube 3 from being exposed in the humid environment for a long time by utilizing the sealing and waterproof functions of the heater, so that the aging of the heating element is accelerated, and the insulativity of the heating element is reduced. In addition, the heater for the oral cavity cleaning device realizes sealing, and simultaneously adopts a simple structure, so that the whole volume is smaller, and the manufacturing cost is lower.

In addition, the heater in this embodiment is disposed between the pump and the spray head in communication with the storage tank. When teeth are flushed, water in the water storage tank flows out, is pressurized by the pump and then flows through the heater, and is heated by the heating pipe 3 and then is sprayed out by the spray head. This kind of mode utilizes heating tube 3 to generate heat, heats the water that just can use that flows through, need not to heat the water in the whole water storage tank, has both satisfied the user demand, and power consumption is lower, and heating efficiency is higher, realizes the quick-heating type heating.

To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A heater for an oral cavity cleaning device is characterized by comprising a shell (1), a first joint (21) with a first channel (211), a second joint (22) with a second channel (221) and a heating tube (3) positioned in the shell (1), wherein the first joint (21) is fixedly connected with one end of the shell (1), the second joint (22) is fixedly connected with the other end of the shell (1), two ends of the heating tube (3) are respectively embedded in a first limiting groove (212) of the first joint (21) and a second limiting groove (222) of the second joint (22), two ends of the heating tube (3) are respectively communicated with the first channel (211) and the second channel (221), a first joint sealing ring (41) is arranged between the first joint (21) and the shell (1), and a second joint sealing ring (42) is arranged between the second joint (22) and the shell (1), be equipped with first heating tube sealing washer (51) between lateral wall and the heating tube (3) of first spacing groove (212), be equipped with second heating tube sealing washer (52) between lateral wall and the heating tube (3) of second spacing groove (222), form confined space (6) between the inner wall of shell (1), the outer wall of heating tube (3), first joint (21) and second joint (22).

2. The heater for oral cavity cleaning device according to claim 1, wherein the material of the housing (1) is metal.

3. The heater for oral cavity cleaning device according to claim 1, wherein the housing (1) is provided with a vent hole (11), and a waterproof and breathable film (12) is provided at the vent hole (11).

4. The heater for an oral cavity cleaning device according to claim 3, wherein the waterproof breathable membrane (12) is fixed on the inner wall of the housing (1).

5. The heater for an oral cavity rinsing device according to claim 1, wherein a first temperature sensor (71) is installed on the first joint (21), a sensing end of the first temperature sensor (71) is protruded into the first passage (211), and a second temperature sensor (72) is installed on the second joint (22), and a sensing end of the second temperature sensor (72) is protruded into the second passage (221).

6. The heater for an oral cavity cleaning device according to claim 1, wherein the first joint (21) comprises a first fitting portion (213), the first fitting portion (213) being embedded in the housing (1), the first joint sealing ring (41) being located between the first fitting portion (213) and the housing (1); the second joint (22) comprises a second fitting portion (223), the second fitting portion (223) being embedded in the housing (1), the second joint sealing ring (42) being located between the second fitting portion (223) and the housing (1).

7. The heater for oral cavity washing device as claimed in claim 6, wherein said first fitting portion (213) is provided with a first positioning groove, and said first joint sealing ring (41) is fitted in the first positioning groove; and a second positioning groove is formed in the second matching part (223), and the second joint sealing ring (42) is embedded in the second positioning groove.

8. The heater for oral cavity washing device according to claim 6, wherein the first joint (21) further comprises a first cover plate portion (214) fixedly connected with the first fitting portion (213), the first cover plate portion (214) is in contact with one end face of the housing (1), and the first cover plate portion (214) is fixedly connected with one end of the housing (1) by a bolt; the second joint (22) further comprises a second cover plate portion (224) fixedly connected with the second matching portion (223), the second cover plate portion (224) is in contact with the other end face of the shell (1), and the second cover plate portion (224) is fixedly connected with the other end of the shell (1) through a bolt.

9. The heater for oral cavity cleaning device according to claim 1, further comprising a temperature fuse (81) electrically connected to the heat generating tube (3), wherein the temperature fuse (81) is connected in series with the heat generating tube (3), and the temperature fuse (81) is located in the sealed space (6).

10. The heater for oral cavity washing device according to claim 1 or 9, further comprising a resettable thermostat (82) electrically connected to the heat generating tube (3), wherein the resettable thermostat (82) is connected in series with the heat generating tube (3), and the resettable thermostat (82) is located in the sealed space (6).