CN2530211Y - Enclosed water electricity valve of fast electric water heater - Google Patents

Abstract

A hydro- and electro-valve for closed-type instant electric water heaters, which pertains to the field of household appliances and can be used as a water pressure switch in various closed-type instant electric water heaters to connect power supply when water flow is on and disconnect power supply when water is off; besides, the utility model can also open and close the water flow and adjust the hydraulic discharge as a means to adjust the temperature of outgoing water. When the water outlet is closed, the utility model can automatically disconnect power supply; and a large-power electric contact can also control the main circuit of the electric water heater. A plurality of functions can be realized once through a single handle. The utility model is simply structured, convenient to operate, and is multifunctional.

Description

Closed quick electric water heater water power valve

Technical field: the utility model belongs to household electrical appliance

Background technology: quick electric water heater can be divided into two kinds of forms substantially, and promptly outlet open-type and outlet are closed.The outlet of outlet open-type water heater can not connect the choked flow element, and water source switch must be at the water inlet of quick electric water heater, and power supply control will realize that the out-of-date power connection of current is promptly arranged by water flow switch, and power supply disconnects during anhydrous flowing through.The delivery port of closed quick electric water heater can connect various water flow switches, water tank is wanted to bear enough tap water pressures, power supply control not only realizes control by the water flow switch of water inlet, and the various water flow switches that delivery port connect also can realize controlling function.

Summary of the invention: the water power valve of present closed quick electric water heater is the water valve structure that adopts gas heater, and when water entry pressure was equal with discharge pressure, push rod was return, and microswitch disconnects.There are two big deficiencies in this structure: the one, and the current regulating handle can not open and close current, can not directly control the switching of main circuit, install a water valve in addition additional at water inlet; The 2nd, the microswitch current load of its control is very little, can not directly open and close the main circuit of water heater, also need realize by other relay.The related water power valve of the utility model has solved the problems referred to above.It adopts the parts of ceramics as the adjusting and the water flow switch control of discharge.3 holes have been designed on the definite ceramic chip, that is: apopore, blasthole and telltale hole.The groove of design abnormity on the dynamic porcelain piece, during the regulating handle rotation, handle drives the dynamic porcelain piece rotation, and the relative position in groove and hole changes, and goes to realize different functions.The abnormity groove can design like this, blasthole and apopore is disconnected also and the telltale hole connection, and telltale hole passes to glued membrane upper chamber with hydraulic signal, and contraction, the contact switch of control push rod disconnect, and outage has realized cutting off the water.When handle was adjusted to the current open position, telltale hole communicated with apopore, owing to there are current to pass through, the hydraulic pressure of delivery port is lower than water inlet hydraulic pressure, differential water pressures so just occurred, and the glue chamber detects this pressure reduction, and push rod is released, and electric contact is connected circuit.When the water flow switch of delivery port was closed, the differential water pressures of water inlet and delivery port was zero, caused push rod to shrink, and electric contact disconnects outage.So just realized the current energising, no current outage, and also water power valve monolever can be controlled the switch of current size and power supply simultaneously.

Can install movable contact (installing compound silver contact head on the elastic copper sheet additional) and fixed contact (on latten(-tin), installing compound silver contact head additional) more than the head of push rod additional.When free state, moving, fixed contact separates, and when push rod was released, it was close until contact to fixed contact to promote movable contact.Because this structure can be made the contact very big capacity, thereby realized the purpose that direct control water heater main circuit opens and closes.

Description of drawings: Fig. 1: the structural representation of the utility model embodiment; Fig. 2: the position in dynamic porcelain piece groove and definite ceramic chip hole relation when the utility model embodiment water power switch cuts out; Fig. 3: the position in dynamic porcelain piece groove and definite ceramic chip hole relation during the utility model embodiment water power switch opens.Fig. 1, Fig. 2 is among Fig. 3: 1, handle 2, valve shaft 3, dynamic porcelain piece 4, definite ceramic chip 5 goes out water passage 6, entry 7, signal path 8, glued membrane lower chambers 9, glued membrane 10, tip-lever support 11, glued membrane upper chamber 12, spring 13, push rod 14, movable contact 15, fixed contact 16, lead 17, terminal plate 18, insulator 19, end cap 20, valve body 21, valve gap 22, sealing ring 23, definite ceramic chip water outlet 24, definite ceramic chip water inlet 25, telltale hole 26, dynamic porcelain piece water yield groove 27, dynamic porcelain piece signal groove.Dotted portion shows dynamic porcelain piece (3) slotting position among Fig. 2, Fig. 3, and solid line shows definite ceramic chip (4) slotting position.

The specific embodiment: when dynamic porcelain piece (3) rotates to as shown in Figure 2 the position is the state of " cutting off the water " and electrical contact " disconnection ".At this moment the water inlet of definite ceramic chip (24) is communicated with the signal port (25) of definite ceramic chip by dynamic porcelain piece water yield groove (26), at this moment water entry pressure imports glued membrane upper chamber (11) by signal path (7), because lower chambers (8) is communicated with water inlet (6) simultaneously, the chamber water pressure is identical up and down, because the elastic force of spring (12) acts on downwards, push rod (13) moves downward, and movable contact (14) is in off-state, the water heater no power.

When dynamic porcelain piece (3) rotated to as shown in Figure 3 the position, definite ceramic chip water inlet (24) was communicated with by dynamic porcelain piece groove (26) with definite ceramic chip delivery port (23), and definite ceramic chip delivery port (23) is communicated with telltale hole (25) by dynamic porcelain piece signal groove (27) simultaneously.Because dynamic porcelain piece groove (26) is very narrow, has played the effect of bottleneck current limliting.If going out water passage (5) opens wide, because this bottleneck effect, the water pressure of definite ceramic chip delivery port (23) is much smaller than the water pressure of definite ceramic chip water inlet (24), this signal pressure passes to upper chamber (11) by signal path (7), because the water pressure of lower chambers (8) causes glued membrane (9) greater than the water pressure of glued membrane upper chamber (11), tip-lever support (10), push rod moves on (13), promotes to move and contact with fixed contact (15) on the movable contact (14), connects the water heater heater circuit.If go out water passage (5) sealing, there are not current to pass through, the water pressure of definite ceramic chip delivery port (23) equates with the water pressure of definite ceramic chip water inlet (24), at this moment signal path (7) equates with the water pressure of going into water passage (6), lower chambers (8), glued membrane (9) and push rod (13) do not move on not understanding, movable contact (14) disconnects with fixed contact (15), the water heater outage.

Claims (3)

1, a kind of closed quick electric water heater water power valve, form by water power valve body, glued membrane cavity, glued membrane chamber end cap, glued membrane, tip-lever support, push rod etc., it is characterized in that: the handle control valve is connected with the glued membrane upper and lower cavity by water lines, and push rod is over against electric switch in the glued membrane chamber.

2, according to the described closed quick electric water heater water power valve of claim 1, it is characterized in that: the handle control valve is made up of definite ceramic chip, dynamic porcelain piece, valve shaft, valve gap, sealing ring, water inlet, delivery port, signal port are arranged on the definite ceramic chip, and corresponding with two grooves on the dynamic porcelain piece.

3, according to the described closed quick electric water heater water power valve of claim 1, it is characterized in that: electric switch is made of push rod, insulator, movable contact spot film, fixed contact sheet, terminal plate, insulator is connected with push rod in the glued membrane chamber, near movable contact, and promotes movable contact and fixed contact switching.

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