CN204372255U

CN204372255U - There is the water switch of pressure-reducing function

Info

Publication number: CN204372255U
Application number: CN201420794552.XU
Authority: CN
Inventors: 刘伶; 刘成
Original assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Current assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Priority date: 2014-12-03
Filing date: 2014-12-03
Publication date: 2015-06-03
Anticipated expiration: 2024-12-03

Abstract

There is the water switch of pressure-reducing function, this water switch is water jet propulsion formula structure, be made up of main body, cover plate, Sealing, driving member, spring or spring sheet, installation cover plate, sensitive switch, stationary contact, movable contact, terminal, the pushing pin piston of sensitive switch, interface, water intake, the passage of water inlet and water outlet is not directly communicate, but separated by cover plate, during water flow, circuit turn-on, when water does not flow, circuit disconnects; Meanwhile, in main body, there is piston, under water flow pressure, can displacement be produced, the pressure in energy self-regulating water tank.

Description

There is the water switch of pressure-reducing function

Technical field

The present invention relates to the water switch of pressure-reducing function, relate generally to the water switch having pressure-reducing function for electric water heater (containing central electric water heater) and solar energy, air-source water heater.

Background technique

The inlet pipeline of existing electric water heater and solar energy, air-source water heater, directly be connected with water source, and water is sent into water tank, be called inlet pipeline, this pipeline does not arrange miscellaneous part, the rated pressure therefore in water tank is 0.6mpa, test press-in is 1.2mpa, this water tank there will be crackle, leaks and explodes, more can not with nonmetal making water tank.

Summary of the invention

The invention provides a kind of water switch with pressure-reducing function, by main body 1, cover plate 2, Sealing 3, driving member 4, spring or spring sheet 5, install cover plate 6, sensitive switch 7, stationary contact 8, movable contact 9, terminal 10, sensitive switch pushing pin 11, piston 12, interface 13, water intake 14, form.

The described water switch with pressure-reducing function, is made up of A, B bis-parts, is connected as one by main body 1:

Part A, main body 1 separates the passage of water inlet and water outlet built with cover plate 2, on installation cover plate 6, movable contact 9 and stationary contact 8 or sensitive switch 7 are housed, when there being water flow, water can be forced promotion cover plate 2, simultaneously promotion Sealing 3 with driving member 4 and make movable contact 9 contact with stationary contact 8 or sensitive switch 7 is connected, circuit turn-on: when current are closed, water intake is closed, and circuit also disconnects;

Part B, is also equipped with piston 12 in main body 1, and piston 12 small end has a cross through hole, centre is also porose, and during water inlet, water passes through transverse holes, enter in water tank from piston 12 intermediate hole, during water inlet, not the entering of block water, when the in-built full water of water tank or inflow are greater than water-outlet quantity, when water tank internal pressure increases, piston 12, large end produces back pressure, piston 12 is subjected to displacement, turns down and even close water intake 14; When discharging water, water intake repeats to open; Thus can pressure in self-regulating water tank, this function guarantees that pressure in water tank is within 0.15mpa.

Beneficial effect of the present invention and novelty are, after adopting multifunctional module in electric water heater and solar energy, air-source water heater, the pressure of water tank is very low, and water tank makes material can be thinning, reduce manufacture cost, simultaneously can with nonmetal making water tank.

Accompanying drawing explanation

Fig. 1, Fig. 3, Fig. 4, Fig. 5 are the Water flow switch structure figure having pressure-reducing function;

Fig. 2 is microswitch structure schematic diagram;

Embodiment

In accompanying drawing, there are the main body 1 of the water switch of pressure-reducing function, cover plate 2, Sealing 3, driving member 4, spring or spring sheet 5, cover plate 6, sensitive switch 7, stationary contact 8, movable contact 9 terminal 10, the pushing pin 11 of sensitive switch, piston 12, interface 13, water intake 14, porose rubber parts 15, dividing plate 16 are installed;

Fig. 1, Fig. 3 to Fig. 5 are a kind of water switches having pressure-reducing function provided by the present invention, what Fig. 1 adopted is the sensitive switch 7 (internal structure is as Fig. 2) that several contact and terminal are all fitted together, Fig. 3 to 5 is by contact and terminal directly on installation cover plate 6, simultaneously in main body 1 built with piston 12; The two function is identical with use, all can be general; Fig. 1, Fig. 3 to Fig. 5 water route is closed condition, and in Fig. 2 to Fig. 5, circuit is one group and often opens, and one group normally closed, when there being water flow, often opening and transferring connection to; Some electric water heaters, do not need initial normally-closed circuit, then cancel this circuit; The shape of Fig. 1 cover plate 2 is different from Fig. 3 to Fig. 5, and cover plate 2 has multiple hole, and promote cover plate 2 when discharging water and move, water flows out from hole, no matter Fig. 1 or Fig. 3 to Fig. 5, and the distance of cover plate 2 movement must guarantee to make circuit ON; On the body 1, inlet channel and water outlet water channel are not straight-through, must turn over a bend, and after cover plate 2 is moved, water could circulate mutually; Due to water channel close time, the water intake of main body 1 is automatically closed by cover plate 2, when guaranteeing that municipal systems pipeline is cut off the water, also ensures that the water in Water tank for electrical water heater can not flow out automatically, makes electric heating apparatus occur dry combustion method phenomenon never; Stationary contact and movable contact in Fig. 3 to Fig. 5, only illustrate one group in figure, actually in product can make many groups; Fig. 1 to Fig. 5, structural type is different, and Placement is different, and working principle is identical.

In Fig. 5, that combines with piston 12 has, porose rubber parts 15 and dividing plate 16; Rubber parts 15 there is multiple hole, have 1 hole in the middle part of dividing plate 16, side also has multiple hole, intake pressure hour, water is unobstructed to be entered within water tank, when pipe-line system pressure is large, rubber parts 15 can produce distortion and be blocked in the hole in the middle part of dividing plate 16, is intake by periphery aperture, when water tank internal pressure increases, piston 12 produces back pressure, and blocked by the aperture of dividing plate 16 periphery, the pressure in water tank is just decreased within 0.15mpa; If want simplified structure, only retain piston 12 and one piece of dividing plate is just passable.

If A and B to be divided into two stand-alone assemblies, be contained in a water tank, also within this patent protection simultaneously.

Claims

1. there is the water switch of pressure-reducing function, be made up of main body (1), cover plate (2), Sealing (3), driving member (4), spring or spring sheet (5), installation cover plate (6), sensitive switch (7), stationary contact (8), movable contact (9), terminal (10), pushing pin (11) piston (12) of sensitive switch, interface (13), water intake (14), it is characterized in that: water switch is made up of A, B bis-parts, is connected as one by main body (1):

Part A, main body (1) separates water inlet and the passage of water outlet built with cover plate (2), installation cover plate (6) is equipped with movable contact (9) and stationary contact (8) or sensitive switch (7);

Part B, piston (12) is also housed in main body (1), piston (12) small end has a transverse holes, centre is also porose, during water inlet, water passes through transverse holes, enter in water tank from piston (12) intermediate hole, when water tank fills water or inflow is greater than water-outlet quantity, when water tank internal pressure increases, piston (12) greatly end produces back pressure, under back pressure effect, produce displacement, turn down and even close water intake (14), thus the pressure in self-regulating water tank.