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CN-224212983-U - Water level sensor of washing machine

CN224212983UCN 224212983 UCN224212983 UCN 224212983UCN-224212983-U

Abstract

The utility model provides a water level sensor of a washing machine, which comprises a shell, an adjusting bracket and a detection column, wherein a pressure detection cavity is formed in the shell, a fixed mounting cover body is arranged on the shell, a support frame is fixedly mounted in the cover body, a rubber sheet is fixedly arranged on the lower surface of the support frame and is used for bearing pressure, the rubber sheet is matched with a detection assembly to realize that the detection column floats up and down under the action of water pressure, the detection process is realized, an air bag is arranged on the lower surface of the rubber sheet, an air hole is formed in the position, corresponding to the air bag, of the upper surface of the rubber sheet, water flow enters and pressurizes the inside, the up-and-down movement of the detection column is realized under the action of water pressure, then residual sewage and scales generated by long-time drying of foam are matched with a vibration motor and the air bag after the next water injection enters, and the effect of effectively cleaning the scales on most of fixed matters on the surface is realized.

Inventors

  • ZHANG YONGJUN
  • LIU ZHONGBO

Assignees

  • 浙江裕华电器有限公司

Dates

Publication Date
20260508
Application Date
20250606

Claims (6)

  1. 1. The utility model provides a washing machine water level sensor, includes casing (1), regulation support (2) and detects post (3), its characterized in that: a pressure detection cavity is formed in the shell (1), a fixed mounting cover body (11) is arranged on the shell (1), a support frame (12) is fixedly mounted in the cover body (11), an inner cavity (13) is formed in the support frame (12), a rubber sheet (32) is fixedly arranged on the lower surface of the support frame (12), and the rubber sheet (32) is used for bearing pressure; the rubber sheet (32) is matched with the detection assembly to realize that the detection column (3) floats up and down under the action of water pressure, so that a detection process is realized; the lower surface of the rubber sheet (32) is provided with an air bag (33), and an air hole (36) is formed in the upper surface of the rubber sheet (32) corresponding to the air bag (33).
  2. 2. The water level sensor of the washing machine according to claim 1, wherein a detection column (3) is fixedly attached to the center of one side of the rubber sheet (32), a magnet ring is arranged outside the detection column (3), and the inner wall of the support frame (12) is inlaid in a copper coil (14) matched with the magnet ring; The magnet ring outside the support frame (12) cuts the copper coil under the left and right pressure, so that the detection purpose is realized.
  3. 3. A water level sensor for washing machine according to claim 2, characterized in that a spring is arranged in the adjusting bracket (2), the other end of the spring is supported at the top end of the detecting column (3), and a vibration motor (31) is arranged at the inner bottom end of the detecting column (3).
  4. 4. A water level sensor for a washing machine according to claim 1, wherein a plastic ring (34) is provided at the edge of the rubber sheet (32), and the hardness of the plastic ring (34) is greater than that of the rubber sheet (32).
  5. 5. The water level sensor of a washing machine according to claim 1, wherein an installation cavity (22) is formed in the adjusting bracket (2), a through hole (23) is formed in the center of the upper surface of the adjusting bracket (2), an adjusting bolt (21) is arranged in the through hole (23), a spring is fixedly installed at the bottom of the adjusting bolt (21), and the bottom end of the spring is sleeved with the top of the detecting column (3) for the condition pressure intensity in use.
  6. 6. The water level sensor of the washing machine according to claim 1, wherein a water pipe connection port (15) is arranged at the center of the bottom end of the shell (1), and a filter layer (16) is arranged in the water pipe connection port (15).

Description

Water level sensor of washing machine Technical Field One or more embodiments of the present disclosure relate to the field of water level sensors, and more particularly, to a water level sensor for a washing machine. Background The water level sensor corresponds to a pressure switch. After setting a pressure value, water pressure is generated after water injection, the water level switch of the washing machine is automatically electrified after reaching the pressure value, and the water level switch of the washing machine is divided into an electronic type (adjustable resistance type) and a switch type, wherein the air pressure generated when the water level rises is transmitted to a sensor through a pipeline to change the resistance or switch the internal switch on so as to enable a computer to act, the water injection is inaccurate after damage, the water injection is not operated (running) after long water injection, and the washing machine is not spin-dried after water discharge. The utility model patent number 2019202508280 in the prior art is that the water level sensor of the washing machine is described in the patent name, the whole sensor structure of the device is more compact, the space occupation rate of the sensor is reduced, the installation of a PCB (printed Circuit Board) is firmer, shaking cannot occur, the connecting wire of an inductance coil and the PCB are ensured to be kept in a relatively static state all the time, the service life of the sensor is prolonged, the whole inductance coil bracket adopts an integrally formed structural design, the number of parts is reduced, the assembly procedures are reduced, the assembly efficiency of the sensor is improved, the middle position of a silica gel diaphragm is set to be a concave-convex structure, the position of a connecting component can be effectively fixed, when the silica gel diaphragm moves up and down, the magnetic core can stably rise and fall, the degree of external interference of the magnetic core is greatly reduced, a pressure relief hole is arranged, the water level measurement deviation is reduced, and the measurement precision is improved. However, such a water level sensor for a washing machine is inaccurate in detection due to scale deposited inside when it is used for a long time, so that it cannot meet the requirements of the prior art. Disclosure of utility model Accordingly, the present utility model is directed to a water level sensor for a washing machine to solve the above problems. Based on the above object, the present utility model provides a water level sensor for a washing machine, comprising a housing, an adjusting bracket and a detecting column; The shell is internally provided with a pressure detection cavity, the shell is provided with a fixed mounting cover body, a supporting frame is fixed in the cover body, an inner cavity is formed in the support frame, a rubber sheet is fixedly arranged on the lower surface of the support frame, and the rubber sheet is used for bearing pressure; the rubber sheet is matched with the detection assembly to realize that the detection column floats up and down under the action of water pressure, so that a detection process is realized; the lower surface of the rubber sheet is provided with an air bag, and the position of the upper surface of the rubber sheet corresponding to the air bag is provided with an air hole. Preferably, a detection column is fixedly attached to the center of one side of the rubber sheet, a magnet ring is arranged outside the detection column, and the inner wall of the support frame is inlaid in a copper coil matched with the magnet ring; The copper coil is cut by the magnet ring outside the support frame under the left and right pressure, so that the detection purpose is realized. Preferably, a spring is arranged in the adjusting bracket, the other end of the spring is supported at the top end of the detecting column, and a vibration motor is arranged at the bottom end in the detecting column. Preferably, a plastic ring is arranged at the edge of the rubber sheet, and the hardness of the plastic ring is greater than that of the rubber sheet. Preferably, the installation cavity is arranged in the adjusting support, a through hole is arranged in the center of the upper surface of the adjusting support, an adjusting bolt is arranged in the through hole, a spring is fixedly arranged at the bottom of the adjusting bolt, the bottom end of the spring is sleeved with the top of the detecting column, and the spring is used for adjusting the pressure intensity of conditions in use. Preferably, a water pipe connector is arranged at the center of the bottom end of the shell, and a filter layer is arranged in the water pipe connector. From the above, it can be seen that the water level sensor for a washing machine provided by the utility model is connected with an external water pipe through the water pipe connection port, and is used for pressurizing the inside