CN-224215576-U - Water servo structure for gas water heater and gas water heater

CN224215576UCN 224215576 UCN224215576 UCN 224215576UCN-224215576-U

Abstract

The utility model provides a water servo structure for a gas water heater and the gas water heater, the water servo structure comprises a water inlet, a first water outlet and a second water outlet, the first water outlet is communicated to a water inlet pipe of the gas water heater, the second water outlet is communicated to a bypass pipe of the gas water heater, a valve body is arranged in the valve body, the valve body comprises a valve cavity, the valve cavity comprises a water inlet, a first outer hole and a second outer hole, a rotary valve core is arranged in the valve cavity, the rotary valve core comprises a first inner hole corresponding to the first outer hole and a second inner hole corresponding to the second outer hole, a first water outlet is formed at the overlapping part of the first outer hole and the first inner hole, a second water outlet is formed at the overlapping part of the second outer hole and the second inner hole, the rotary valve core can drive the first inner hole and the second inner hole to rotate relative to the first outer hole and the second outer hole so as to change the area structure of the first water outlet and the second water outlet, and the rotary valve core is relatively simple, and more stable and comfortable hot water using experience can be provided.

Inventors

WEI MIAOMIAO
SHEN WENQUAN
ZHU HAILONG
WU SHUAI

Assignees

宁波方太厨具有限公司

Dates

Publication Date: 20260508
Application Date: 20250304

Claims (10)

1. A water servo structure for gas heater, water servo structure sets up in gas heater, water servo structure includes the water inlet, first delivery port and second delivery port, first delivery port switches on to gas heater's inlet tube, the second delivery port switches on to gas heater's bypass pipe, its characterized in that including: The valve body is internally provided with a valve cavity, and the valve cavity comprises a water inlet, a first outer hole and a second outer hole; The rotary valve core is arranged in the valve cavity and comprises a first inner hole corresponding to the first outer hole and a second inner hole corresponding to the second outer hole, the overlapping part of the first outer hole and the first inner hole forms the first water outlet, and the overlapping part of the second outer hole and the second inner hole forms the second water outlet; The rotary valve core can drive the first inner hole and the second inner hole to rotate relative to the first outer hole and the second outer hole through rotation so as to change the areas of the first water outlet and the second water outlet.
2. The water servo structure for a gas water heater as recited in claim 1 wherein an area of the first outer hole and/or the first inner hole is larger than an area of the second outer hole and/or the second inner hole.
3. The water servo structure for a gas water heater as claimed in claim 2, wherein the rotary valve core is rotatable to be sequentially changed in a first state, a second state and a third state; In the first state, the first inner bore and the first outer bore are fully coincident, and the second inner bore and the second outer bore are fully coincident; in the second state, the first inner bore and the first outer bore partially overlap, and the second inner bore and the second outer bore partially overlap; in the third state, the first inner bore and the first outer bore are partially coincident and the second inner bore and the second outer bore are not coincident.
4. The water servo structure for a gas water heater as recited in claim 1 wherein the water servo structure further comprises a stator coil and a corresponding rotor, the rotor being connected to the rotary spool, the stator coil and the rotor being capable of driving the rotary spool to rotate; and/or the number of the groups of groups, The water servo structure further comprises a water flow sensor and a temperature sensor which are arranged in the valve body; When the water flow sensor detects that the water flow in the valve body is larger than the preset flow and the temperature sensor detects that the water flow temperature in the valve body is lower than the preset temperature, the stator coil and the rotor drive the rotary valve core to rotate and sequentially change from a first state to a second state and a third state.
5. The water servo structure for a gas water heater as recited in claim 4 wherein the water flow sensor and the temperature sensor are disposed within the valve body proximate the water inlet.
6. The water servo structure for a gas water heater according to claim 4, wherein the rotary valve core comprises a cylinder coaxially arranged with the valve body and nested in the valve body, the cylinder is opened toward one side of the water inlet, a first inner hole and a second inner hole are formed in the peripheral wall of the cylinder, and a first outer hole and a second outer hole are formed in the cavity wall of the valve body, which is in contact with the cylinder.
7. The water servo structure for a gas water heater as claimed in claim 6, wherein the cylinder includes a cover portion to which the peripheral wall is connected, the rotor is fixedly connected to the cover portion, and the cover portion separates the inside of the valve body from the stator coil; a sealing ring is arranged between the circumference of the cover part and the cavity wall of the valve body.
8. The water servo structure for a gas water heater as recited in claim 7 wherein the stator coil is connected to the valve body using a screw.
9. The water servo structure for a gas water heater as recited in claim 7 wherein the rotor and the cover are connected using an in-mold injection process.
10. A gas water heater, characterized in that it comprises a water servo structure for a gas water heater as claimed in any one of claims 1 to 9.

Description

Water servo structure for gas water heater and gas water heater Technical Field The utility model relates to the field of water heaters, in particular to a water servo structure for a gas water heater and the gas water heater. Background With the continuous improvement of the living standard of people, the water heater is taken as a necessary household appliance in daily life, and the performance and the use experience of the water heater are widely focused. In the existing water heater technology, a bypass pipe is usually provided for realizing the zero cold water function. Although the design solves the problem of cold water waste to a certain extent, in the actual use process, the defect of insufficient hot water temperature exists, and the water use experience of a user is greatly influenced. In order to improve this situation, water servo assemblies are added into water heater systems in the industry for adjusting water flow, thereby improving the user experience. However, existing water servo schemes suffer from a number of disadvantages. Firstly, the function of the water heater is relatively single, only the inflow water flow can be regulated, and the complex requirements of the water heater under different working conditions can not be fully met. Secondly, the existing water servo structure is complex, so that the manufacturing cost and the installation difficulty are increased, the fault rate is possibly increased, and the overall reliability of the water heater is reduced. In view of the problems in the prior art, the scheme provides a brand-new water servo control technology, aims at realizing accurate adjustment of water inlet flow and bypass flow of the water heater by optimizing structure and functional design, and accordingly effectively solves the problem of insufficient temperature of hot water and improves water experience of users. Disclosure of utility model The utility model aims to overcome the defects that in the prior art, a water servo scheme is relatively single in function and complex in structure and the hot water temperature of a zero cold water heater is insufficient, and provides a water servo structure for a gas water heater and the gas water heater. The utility model solves the technical problems by the following technical scheme: a water servo structure for gas heater, water servo structure sets up in gas heater, water servo structure includes the water inlet, first delivery port and second delivery port, first delivery port switches on to gas heater's inlet tube, the second delivery port switches on to gas heater's bypass pipe, and it is including: The valve body is internally provided with a valve cavity, and the valve cavity comprises a water inlet, a first outer hole and a second outer hole; The rotary valve core is arranged in the valve cavity and comprises a first inner hole corresponding to the first outer hole and a second inner hole corresponding to the second outer hole, the overlapping part of the first outer hole and the first inner hole forms the first water outlet, and the overlapping part of the second outer hole and the second inner hole forms the second water outlet; The rotary valve core can drive the first inner hole and the second inner hole to rotate relative to the first outer hole and the second outer hole through rotation so as to change the areas of the first water outlet and the second water outlet. In this scheme, adopt above-mentioned structure, the water servo structure of this scheme is simple relatively, mainly comprises spare parts such as valve body, rotatory case, compares current complicated water servo structure, has reduced spare part quantity and assembly degree of difficulty, has reduced manufacturing cost and fault rate, has improved reliability and the stability of system, is favorable to large-scale production and application. Through the design of the rotary valve core, the areas of the first water outlet and the second water outlet can be accurately controlled according to the water flow and the water outlet temperature, and the dynamic adjustment of the water inlet flow and the bypass flow is realized. When the water flow is bigger and the water outlet temperature is lower than the set temperature, the areas of the bypass pipe and the water inlet pipe are reduced, the water inlet flow and the bypass flow are gradually reduced, the hot water can be ensured to be fully heated, and the requirement of a user on the hot water temperature is met. The water heater provides more stable and comfortable hot water use experience for users, and solves the problem that the insufficient hot water temperature of the existing water heater affects the user experience. Preferably, the area of the first outer hole and/or the first inner hole is larger than the area of the second outer hole and/or the second inner hole. In this scheme, adopt above-mentioned structure, through setting up the area of first external orifice and/or first hole and being