CN105004057A - Quick heating type mixed heating electric water heater controlled through water flow switch - Google Patents

Abstract

The invention relates to a quick heating type mixed heating electric water heater controlled through a water flow switch. The electric water heater comprises an outer shell, a water tank, an electric heating pipe, a water inlet pipe, a water outlet pipe, a water flow switch, a gear switch, a button switch and the like; the water flow switch is of a water flow pushing type structure, and is formed by a body, a cover plate, a sealing piece, a pushing piece, a spring or leaf spring, an installation cover plate, a microswitch, a fixed contact, a movable contact, a terminal and a pushing pin of the microswitch; a channel for water inlet and a channel for water outlet are not communicated directly, and are separated through the cover plate; when water flows, the circuit is closed; and when the water does not flow, the circuit is opened; the water flow switch needs to be matched with the gear switch in work, and a pre-heating switch is pressed down when the water in the water tank needs to be pre-heated.

Description

The electric heater of the quick-heating type Hybrid Heating that water flow switch controls

Technical field

The present invention relates to the electric heater of the quick-heating type Hybrid Heating that water flow switch controls.

Background technology

The control method of current countries in the world electric heater has two kinds, and a kind of is adopt type liquid expansion temperature controller to set the temperature in water tank, after energising, electrothermal tube starts to heat up, and stops heating after reaching temperature, when the temperature in water tank declines, heat again, continuous repetition, when exceeding design temperature, cuts off the electricity supply, be called mechanical type control method, liquid expansion type controls, and energising continuously in 24 hours, wastes energy; When temperature control inefficacy meeting laser heating, water heater is exploded; Another kind adopts microcomputer chip and relay and other electron component, and hydrous water flow sensor, when measuring water flow, then start electrothermal tube work by relay, this electronic controller has tens of electrons element, hundreds of contacts, easy generation fault, cost is also higher; The invention provides a kind of by water flow switch, the control method that Direct driver electrothermal tube is turned on or off and corresponding water heater structure.

Summary of the invention

The electric heater of the quick-heating type Hybrid Heating that water flow switch of the present invention controls, is made up of water flow switch 20, water tank 12, electrothermal tube 13, water inlet pipe 14, outlet pipe 15, shell 17 etc.; Described water flow switch 20 by main body 1, cover plate 2, promote seal 3 and impeller 4, spring or spring leaf 5 simultaneously, cover plate 6 be installed, the pushing pin 11 of microswitch 7, stationary contact 8, movable contact 9, terminal 10, microswitch forms, in main body 1, the passage of water inlet and water outlet is not directly communicate, but separated by cover plate 2, when there being water flow, water can promote cover plate 2, promote seal 3 simultaneously makes movable contact 9 contact with stationary contact 8 with impeller 4, circuit turn-on; Current are closed, and circuit disconnects; Because electrothermal tube has more than one, different temperature needs one or a few electrothermal tube work, is determined by driving switch 21.

Described electric heating element 13 1 kinds electrothermal tube and metal water circulation road is integrated with aluminium alloy; That the water stream channel made by 13-1 heating wire, 13-2 magnesia powder, 13-3 metal tube, 13-4 aluminium alloy, 13-5 metal material, 13-7 solder terminal, 13-8 Inlet and outlet water interface are formed is 13A; And be formed as the out-of-date i.e. heating water of current stay vertical utensil 22; In metal tube, have heating wire, with magnesia powder, heating wire and metal pipe-wall are kept apart, magnesia powder is formed as insulating barrier, and electrothermal tube is immersed in the water of heating water tank 12, and claim 13B the present invention to adopt 2 kinds of mode of heatings, be Hybrid Heating simultaneously.

Described water tank 12, volume is less, and the out-of-date i.e. heating water of external current stay vertical utensil 22, electrothermal tube 13 controls electrothermal tube circuit conducting or closedown by water flow switch 20, determines different electrothermal tube work or do not work by driving switch 21; The water inlet of water flow switch 20 and the passage of water outlet are not directly communicate, but are separated by cover plate 2, and when there being water flow, water can promote cover plate 2, promote seal 3 and impeller 4 simultaneously, and movable contact 9 is contacted with stationary contact 8, circuit turn-on; Current are closed, and circuit disconnects.

Beneficial effect of the present invention and novelty directly control being turned on or off of electrothermal tube with current, and when having water flow, electrothermal tube is connected, and automatically disconnects when water is closed.

Accompanying drawing explanation

Fig. 1 Fig. 2 is the Water flow switch structure figure of water jet propulsion formula by microswitch break-make, and Fig. 1 is closed condition, and Fig. 2 makes microswitch on-state for there being water flow;

Fig. 3 is microswitch structure schematic diagram

Fig. 4 Fig. 5 is the structural representation that water flow switch directly promotes contact

Fig. 6 is the electric heater structural representation of the quick-heating type Hybrid Heating that water flow switch controls

Detailed description of the invention

In accompanying drawing, water flow switch main body 1, cover plate 2, seal 3, impeller 4, spring or spring leaf 5, installation cover plate 6, microswitch 7, stationary contact 8, movable contact 9, terminal 10, the pushing pin 11 of microswitch, water tank 12, electric heating element (also claiming electrothermal tube) 13, water inlet pipe 14, outlet pipe 15, shell 17, water flow switch 20, driving switch 21, preheating switch 22, water 25.

Fig. 1 to Fig. 5 is water flow switch 20, be made up of main body 1, cover plate 2, seal 3, impeller 4, spring or spring leaf 5, installation cover plate 6, microswitch 7, stationary contact 8, movable contact 9, terminal 10, what Fig. 1 Fig. 2 adopted is microswitch 7, Fig. 4 Fig. 5 be by contact and terminal directly on installation cover plate 6, the two function is identical with use, Fig. 1 Fig. 4 Fig. 5 is water route closed condition, and circuit disconnects; Fig. 2 be water in flow regime, the strength by water forces cover plate 2 to move, also simultaneously hydrodynamic reciprocating sealing part 3 and impeller 4, the pushing pin 11 promoted on microswitch, movable contact and stationary contact is combined, circuit turn-on; If closedown water route, then circuit disconnects; The shape of Fig. 4 cover plate 2 is different, and cover plate 2 has multiple hole, and when discharging water, promote cover plate 2 moves, water flows from hole; On the body 1, inlet channel and water outlet water channel are not straight-through, and cover plate 2 must be made to move water could circulate mutually; Due to water channel close time, the feed water inlet of main body 1 is automatically closed by cover plate 2, and stationary contact and movable contact in Fig. 4 Fig. 5, only illustrate one group in figure, and actual product can make many groups.

Fig. 6 is the electric heater structural representation of the quick-heating type Hybrid Heating that water flow switch controls, water flow switch 20, driving switch 21, electrothermal tube 13 cooperating in figure, and driving switch 21, has rotary and button type structure; The function of the two is identical; In figure, water flow switch 20 adopts microswitch 7, and according to the structure that Fig. 4 Fig. 5 makes movable contact be combined with stationary contact, function is identical; Many electrothermal tubes 13 are housed in water tank 12 discharge water, water flow switch 20 makes microswitch pushing pin 11, promotes movable contact 9 and contacts with stationary contact 8, now, and the electrothermal tube work really different by driving switch 21; Guan Shui, circuit disconnects automatically, by preheating switch 22 when needing preheating.

Product in accompanying drawing, water temperature display can adopt digital-scroll technique or fuzzy display, and in figure, arrow is water (flow) direction.

Claims (1)

1. the electric heater of quick-heating type Hybrid Heating that controls of water flow switch, is characterized in that: at inlet pipeline, water flow switch (20) is housed and is used for controlling electrothermal tube circuit and is turned on or off, determine different electrothermal tube work or do not work by driving switch (21); In the main body (1) of water flow switch (20), the passage of water inlet and water outlet is not directly communicate, separated by cover plate (2), when having water flow, water can promote cover plate (2), promote seal (3) with impeller (4) simultaneously makes movable contact (9) contact with stationary contact (8), circuit turn-on, anhydrous flowing, circuit disconnects; Electric heating element (13) one is that 13A adopts aluminium alloy metal electric heat pipe and water stream channel bag to be integrated, the vertical utensil (22) of staying being formed as the out-of-date i.e. heating water of current is arranged on outside water tank (12), another kind is that 13B has heating wire in metal tube, with magnesia powder, heating wire and metal tube tube wall is separated; Electrothermal tube is immersed in water tank (12).