WO2022166812A1

WO2022166812A1 - Heating type oral cleaning device

Info

Publication number: WO2022166812A1
Application number: PCT/CN2022/074627
Authority: WO
Inventors: 刘飞; 陆志艳
Original assignee: 上海飞象健康科技有限公司
Priority date: 2021-02-02
Filing date: 2022-01-28
Publication date: 2022-08-11
Also published as: CN214679062U

Abstract

A heating type oral cleaning device, comprising a storage tank (1) for storing cleaning liquid, a housing (2), a pressurizing pump (3) installed in the housing (2) and communicated with the storage tank (1), a cleaning head (5) communicated with the pressurizing pump (3) by means of a connecting hose (4), a heating unit (6) for heating the cleaning liquid, and a control unit (7) electrically connected to the heating unit (6), the heating type oral cleaning device also comprising a flow measurement unit (81) and a temperature measurement unit (82). The flow measurement unit (81) can measure the flow amount of the cleaning liquid entering the heating unit (6), and the flow measurement unit (81) is electrically connected to the control unit (7); the temperature measurement unit (82) comprises an inlet temperature sensor (821) installed at the inlet of the heating unit (6), and the inlet temperature sensor (821) is electrically connected to the control unit (7). The flow measurement unit (81) can measure the flow amount of the cleaning liquid entering the heating unit (6), the inlet temperature sensor (821) can measure the temperature of the cleaning fluid entering the heating unit, the control unit can accurately control the power of the heating unit (6) to accurately heat the cleaning fluid to a set temperature.

Description

Heated Mouth Rinse

technical field

The present invention relates to an oral cavity cleaning device, in particular to a heated oral cavity cleaning device.

Background technique

Most of the existing dental irrigators have no heating function and cannot achieve hot water irrigating. However, in fact, many people's teeth are very sensitive. When the temperature is low, cold water will stimulate the teeth and gums, making people feel extremely uncomfortable and even painful. . At the same time, among many products, some existing products have heating function, but these products only heat the water in the water storage tank. This heating method is difficult to control the temperature of the water outlet, and in order to maintain the water temperature, it will continuously All the water in the water storage tank is heated, which wastes energy. In addition, there is another way to place the aluminum heating block between the water tank of the tooth irrigator and the water inlet end of the water pump, and use the aluminum heating block to heat the water to enter the pump. Precipitating a large amount of calcium is easier to precipitate and accumulate in the pump. After long-term use, it will not only affect the use effect and life of the pump and the entire product, but also cause secondary pollution.

The heating or non-heating of the heating components in these existing dental irrigators is only realized by the temperature controller. When the temperature is lower than the set value, the heating components will be activated and heated. This heating method will generate electricity when there is no water. The heat pipe will also be heated, and only when the temperature reaches a certain level will the power be cut off. Although the purpose of limiting the temperature is achieved, it will cause dry burning. In this way, when the flow of water is small or absent, the heating components will be dry-burned due to the hysteresis of heat conduction, and the components will be damaged at this time, resulting in a short service life of the dental irrigator. In addition, when the existing dental irrigator is heated, because the temperature of the water cannot be accurately obtained, it is difficult to accurately control the heating element to operate at a reasonable power, resulting in an excessively large power of the heating element, which in turn leads to high power consumption. And make the water is heated too high, prone to burns.

SUMMARY OF THE INVENTION

In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a heated oral cleaning device with a longer service life.

In order to achieve the above purpose, the present invention provides a heated oral cavity cleaning device, comprising a storage tank for storing cleaning fluid, a casing, a pressurized pump installed in the casing and communicated with the storage tank, The cleaning head communicated with the pressure pump, the heating unit for heating the cleaning liquid, and the control unit electrically connected with the heating unit, the heated oral cleaning device also includes a flow detection unit and a temperature detection unit, the flow detection unit The unit can detect the flow of the cleaning liquid entering the heating unit, and the flow detection unit is electrically connected to the control unit; the temperature detection unit includes an inlet temperature sensor installed at the inlet of the heating unit, and the inlet temperature sensor Electrically connected with the control unit.

Further, the temperature detection unit further includes an outlet temperature sensor, the outlet temperature sensor is installed at the outlet of the heating unit, and the outlet temperature sensor is electrically connected to the control unit.

Further, the inlet and outlet of the heating unit are respectively communicated with the pressurizing pump and the connecting pipe.

Further, the flow detection unit is located between the pressurizing pump and the heating unit.

Further, the flow detection unit is located between the storage tank and the pressurizing pump.

Further, an operation part is provided on the casing, and the operation part is electrically connected with the control unit.

Further, the heated oral cleaning device further includes one or more temperature limiters, the temperature limiters are electrically connected with the heating unit, and the temperature limiters are connected in series with the heating unit.

Further, the heating unit includes a heating tube, and the heating tube includes a quartz tube and an electric heating film covering the outer surface of the quartz tube.

Further, the heating unit further includes a protective casing, and the quartz tube and the electric heating film are both located in the protective casing.

As described above, the heated oral cleaning device according to the present invention has the following beneficial effects:

When in use, the cleaning fluid flows out of the storage tank, and the pressurized pump pressurizes the cleaning fluid and delivers it to the cleaning head, and sprays it out through the cleaning head to clean the oral cavity. During this process, the control unit will control the heating The unit heats the cleaning liquid to prevent the temperature of the sprayed cleaning liquid from being too low; and the flow detection unit will feed back the detected flow value of the cleaning liquid entering the heating unit to the control unit, and the inlet temperature sensor will detect the flow value of the cleaning liquid entering the heating unit. The temperature value of the cleaning liquid of the heating unit is fed back to the control unit, and the control unit controls the working state of the heating unit according to the obtained flow value and temperature value. If the flow value is zero or lower than the set value, the heating unit is controlled to stop heating to Avoid dry burning and damage to the heating element, and ensure a longer service life of the heated oral cleaning device; if the flow value reaches the set value, the control unit will combine the obtained flow value and temperature value with the desired setting. The target temperature value, control the heating unit to heat with a reasonable power, so as to accurately heat the cleaning liquid flowing through the heating unit to the set temperature, avoid the temperature being too low, too high, etc., and avoid the waste of more energy.

Description of drawings

FIG. 1 is a schematic structural diagram of a heating unit in an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a heated oral cleaning device according to an embodiment of the present invention.

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

Component label description

1 Storage tank 642 Outflow channel

2 Shell 65 Inlet joint sealing ring

21 Operation Department 66 Outlet joint sealing ring

3 Booster pump 67 The first heating pipe seal

4 Connecting pipe 68 Second heating pipe sealing ring

5 cleaning head 7 control unit

6 Heating unit 81 Flow detection unit

61 Heating tube 82 Temperature detection unit

62 Protective case 821 Inlet temperature sensor

63 Inlet connector 822 Outlet temperature sensor

631 Water Inlet Limit Slot 83 Temperature Limiter

632 Inlet water channel 831 Thermal fuse

64 Water outlet connector 832 Resettable thermostat

641 Water outlet limit groove

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention. , therefore does not have technical substantive significance, any structural modification, proportional relationship change or size adjustment, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the present invention. within the scope of the technical content. At the same time, terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the present invention. The scope of implementation, the change or adjustment of the relative relationship, and the technical content without substantial change, shall also be regarded as the scope of the present invention.

As shown in FIG. 1 to FIG. 3 , this embodiment provides a heated oral cleaning device, which includes a storage tank 1 for storing cleaning liquid, a casing 2 , and a Pressure pump 3, cleaning head 5 communicated with pressure pump 3 through connecting pipe 4, heating unit 6 for heating cleaning liquid, and control unit 7 electrically connected with heating unit 6, heated oral cleaning device It also includes a flow detection unit 81 and a temperature detection unit 82. The flow detection unit 81 can detect the flow of the cleaning liquid entering the heating unit 6, and the flow detection unit 81 is electrically connected with the control unit 7; The inlet temperature sensor 821 at the inlet of the unit 6 is electrically connected to the control unit 7 . During use, the cleaning liquid flows out from the storage tank 1, and the pressurizing pump 3 pressurizes the cleaning liquid and delivers it to the cleaning head 5, and sprays it through the cleaning head 5 to realize the cleaning of the oral cavity. During this process, the control The unit 7 will control the heating unit 6 to heat the cleaning liquid to prevent the temperature of the sprayed cleaning liquid from being too low; and the flow detection unit 81 will feed back the detected flow value of the cleaning liquid entering the heating unit 6 to the control unit 7, The inlet temperature sensor 821 will feed back the detected temperature value of the cleaning liquid entering the heating unit 6 to the control unit 7, and the control unit 7 controls the working state of the heating unit 6 according to the obtained flow value and temperature value, if the flow value is zero or If it is lower than the set value, the heating unit 6 will be controlled to stop heating, so as to avoid dry burning and cause damage to the heating element, so as to ensure a longer service life of the heated oral cleaning device; if the flow value reaches the set value, the control unit will 7. According to the obtained flow value and temperature value, combined with the set target temperature value to be achieved, control the heating unit 6 to heat with a reasonable power, so that the cleaning liquid flowing through the heating unit 6 can be accurately heated to the set temperature to avoid The temperature is too low, too high, etc., and avoid the waste of more energy.

In this embodiment, the control unit 7 can calculate the heating electric power P of the heating unit 6 according to the formula: P=W*Q(TS-T1)/t, where W is the specific heat capacity of water, that is, 4200J/kg*℃, and Q is the flow rate The flow rate value fed back by the detection unit 81, TS is the set target temperature value, T1 is the inlet water temperature value fed back by the inlet temperature sensor 821, and t is the heating time. In this embodiment, the heated oral cleaning device can automatically adjust the temperature of the water flow.

As shown in FIG. 1 , in this embodiment, the temperature detection unit 82 further includes an outlet temperature sensor 822 . The outlet temperature sensor 822 is installed at the outlet of the heating unit 6 , and the outlet temperature sensor 822 is electrically connected to the control unit 7 . The outlet temperature sensor 822 is used to detect the temperature of the cleaning liquid flowing out from the outlet of the heating unit 6, and feed back the detected temperature value to the control unit 7. The control unit 7 controls the operation of the heating unit 6 according to the temperature of the outlet of the heating unit 6. The state is adjusted accordingly to ensure that the heating unit 6 can accurately heat the cleaning liquid flowing through to the set temperature.

As shown in FIG. 2 and FIG. 3 , in this embodiment, the inlet and outlet of the heating unit 6 are communicated with the pressurizing pump 3 and the connecting pipe 4 respectively. In this way, the cleaning liquid is pressurized by the pressurizing pump 3 and flows through the heating unit 6 , and after being heated by the heating unit 6 , flows to the cleaning head 5 through the connecting pipe 4 , and is finally ejected through the cleaning head 5 . In this way, a large amount of calcium and the like precipitated in the heated cleaning solution can be effectively prevented from being precipitated in the pressurizing pump 3, thereby affecting the performance and service life of the pressurizing pump 3, thereby ensuring that the pressurizing pump 3 And the oral cleaning device has a long service life.

As shown in FIG. 2 , in this embodiment, the flow detection unit 81 is located between the pressurizing pump 3 and the heating unit 6 , so as to accurately detect the flow of the cleaning liquid flowing into the heating unit 6 in time. In addition, in other embodiments, the flow detection unit 81 may also be located between the storage tank 1 and the pressurizing pump 3 to obtain the flow rate of the cleaning liquid flowing into the heating unit 6 by detecting the flow rate of the cleaning liquid flowing into the pressurizing pump 3 .

As shown in FIG. 2 , in this embodiment, an operation part 21 is provided on the casing 2 , and the operation part 21 is electrically connected to the control unit 7 . The user sends corresponding control commands to the control unit 7 by performing corresponding operations on the operation part 21 , and the control unit 7 then controls the working states of the heating unit 6 and the pressurizing pump 3 . In this embodiment, the pressurizing pump 3 is also electrically connected to the control unit 7 . Specifically, the user can set the flushing mode and set the water temperature by performing corresponding operations on the operation part 21 .

As shown in FIG. 1 , the heated oral cleaning device in this embodiment further includes one or more temperature limiters 83 . The temperature limiters 83 are electrically connected to the heating unit 6 , and the temperature limiters 83 are connected in series with the heating unit 6 . When the temperature of the heating unit 6 reaches the set value, the temperature limiter 83 will be disconnected, so that the heating unit 6 will be powered off, so as to prevent the heating unit 6 from continuing to heat, causing the temperature of the heating unit 6 itself and the cleaning solution to be too high.

As shown in FIG. 1 , in this embodiment, the heating unit 6 includes a heating tube 61 , and the heating tube 61 includes a quartz tube and an electric heating film covering the outer surface of the quartz tube. The two ends of the heating pipe 61 are respectively connected with the pressurizing pump 3 and the connecting pipe 4 , and the electric heating film is electrically connected with the control unit 7 . When the cleaning liquid flows through the hollow quartz tube, the electric heating film generates heat to heat the cleaning liquid. At the same time, as shown in FIG. 1 , the heating unit 6 also includes a protective casing 62 in this embodiment, and the quartz tube and the electric heating film are located in the protective casing 62, so as to use the protective casing 62 to protect the quartz tube and the electric heating film to prevent the quartz tube and the electric heating film. And the electric heating film is directly exposed to the external environment, and is easily damaged or even leaked. In this embodiment, the temperature limiter 83 is also installed in the protective casing 62 . In this embodiment, the temperature of the heated cleaning solution is controlled to be between 35°C and 45°C.

As shown in FIG. 1 , in this embodiment, the heating unit 6 further includes a water inlet joint 63 and a water outlet joint 64 respectively installed at both ends of the protective casing 62 , and a water inlet joint seal is also provided between the water inlet joint 63 and the protective casing 62 Ring 65, a water outlet joint sealing ring 66 is also provided between the water outlet joint 64 and the protective casing 62 to enhance the sealing performance of the two places. The heating pipe 61 is located between the water inlet joint 63 and the water outlet joint 64 and is clamped by the water inlet joint 63 and the water outlet joint 64 . One end of the heating pipe 61 is inserted into the water inlet limit groove 631 of the water inlet joint 63 , and the other end of the heating pipe 61 is inserted into the water outlet limit groove 641 of the water outlet joint 64 . In addition, a first heating pipe sealing ring 67 is also provided between the heating pipe 61 and the side wall of the water inlet limiting groove 631 , and a second heating pipe sealing ring 68 is also provided between the heating pipe 61 and the side wall of the water outlet limiting groove 641 . The bottom of the water inlet limit groove 631 is provided with a water inlet channel 632, the bottom of the water outlet limit groove 641 is provided with a water outlet channel 642, and the two ends of the heating pipe 61 are respectively connected with the water inlet channel 632 and the water outlet channel 642. Meanwhile, in this embodiment, the inlet temperature sensor 821 is installed on the water inlet joint 63, and the sensing head of the inlet temperature sensor 821 is located in the water inlet channel 632; the outlet temperature sensor 822 is installed on the water outlet joint 64, and the outlet temperature sensor 822 The induction head is located in the water outlet channel 642 .

As shown in FIG. 1 , in this embodiment, there are two temperature limiters 83 , which are a thermal fuse 831 and a resettable temperature controller 832 respectively. Both the thermal fuse 831 and the resettable thermostat 832 are connected in series with the heating tube 61 , and the thermal fuse 831 is at the live end of the heating tube 61 , and the resettable thermostat 832 is at the neutral end of the heating tube 61 . The two are not the same temperature, and the temperature limit of the thermal fuse 831 is higher than that of the resettable thermostat 832 . When the resettable thermostat 832 is disconnected, the reset operation can be performed, and it can be used normally again, so as to reduce the maintenance cost. In this embodiment, the storage tank 1 , the pressure pump 3 , the casing 2 , the flow detection unit 81 , and the temperature detection unit 82 constitute the main unit of the heated oral cleaning device. The control unit 7 is located inside the housing 2 .

When the flow detection unit 81 detects that there is no water flow through the heating tube 61, or the flow of water passing through is less than the set value, the set value is preferably 50ml/min, and the control unit 7 will control the heating unit 6 to stop heating to prevent dry burning. , to avoid wasting energy and affecting the safety performance of the product. At the same time, the flow detection unit 81 can more accurately detect the amount of water flowing through the heating unit 6 . The control unit 7 can more directly and accurately calculate the energy required for heating according to the feedback water flow and temperature, and then adjust the power of the heating unit 6 to accurately heat the water to the set temperature.

To sum up, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.

Claims

A heated oral cavity cleaning device, comprising a storage tank (1) for storing cleaning liquid, a casing (2), and a pressurizing pump (3) installed in the casing (2) and communicating with the storage tank (1) ), the cleaning head (5) communicated with the pressurizing pump (3) through the connecting pipe (4), the heating unit (6) for heating the cleaning liquid, and the control unit electrically connected with the heating unit (6) (7), characterized in that it further comprises a flow detection unit (81) and a temperature detection unit (82), the flow detection unit (81) can detect the flow of the cleaning liquid entering the heating unit (6), and the The flow detection unit (81) is electrically connected with the control unit (7); the temperature detection unit (82) includes an inlet temperature sensor (821) installed at the inlet of the heating unit (6), and the inlet temperature sensor ( 821) is electrically connected with the control unit (7).
The heated oral cleaning device according to claim 1, wherein the temperature detection unit (82) further comprises an outlet temperature sensor (822), and the outlet temperature sensor (822) is installed at the outlet of the heating unit (6) and the outlet temperature sensor (822) is electrically connected to the control unit (7).
The heated oral cleaning device according to claim 1, characterized in that, the inlet and the outlet of the heating unit (6) are respectively communicated with the pressurizing pump (3) and the connecting pipe (4).
The heated oral cleaning device according to claim 3, characterized in that, the flow detection unit (81) is located between the pressurizing pump (3) and the heating unit (6).
The heated oral cleaning device according to claim 1, characterized in that, the flow detection unit (81) is located between the storage tank (1) and the pressurizing pump (3).
The heated oral cleaning device according to claim 1, characterized in that, an operation part (21) is provided on the casing (2), and the operation part (21) is electrically connected with the control unit (7).
The heated oral cleaning device according to claim 1, further comprising one or more temperature limiters (83), the temperature limiters (83) being electrically connected to the heating unit (6), and the The temperature limiter (83) is connected in series with the heating unit (6).
The heated oral cleaning device according to claim 1, wherein the heating unit (6) comprises a heating tube (61), and the heating tube (61) comprises a quartz tube and an electric heating film covering the outer surface of the quartz tube .
The heated oral cleaning device according to claim 8, characterized in that, the heating unit (6) further comprises a protective casing (62), and the quartz tube and the electric heating film are both located in the protective casing (62).