WO2020150841A1

WO2020150841A1 - Water pump control device for steam ironing machine and steam ironing machine

Info

Publication number: WO2020150841A1
Application number: PCT/CN2018/121390
Authority: WO
Inventors: 刘晓
Original assignee: 苏州市格美纳电器有限公司
Priority date: 2019-01-21
Filing date: 2019-01-21
Publication date: 2020-07-30

Abstract

A water pump control device for a steam ironing machine and a steam ironing machine. The water pump control device comprises a power supply, a first control branch and a second control branch. The first control branch and the second control branch are connected in parallel to the power supply; the first control branch comprises a normally open switch (1), a water pump (2) and a first switch (3) that are connected in sequence; and the second control branch comprises a heating body (4) and a normally closed switch (5) that are connected in sequence. The water pump control device above avoids water spraying of the steam ironing machine when starting up, improving the reliability of the operation process, and reducing costs.

Description

Water pump control device of steam ironing machine and steam ironing machine

Technical field

The utility model relates to a water pump control device, in particular to a water pump control device applied to a hand-held or portable steam ironing machine, and also relates to a steam ironing machine with the device.

Background technique

With the improvement of people's living standards, people are becoming more and more particular about clothing. The steam ironing machine has the advantages of fast ironing speed, high ironing efficiency, and does not affect the surface and inner texture of clothing, so it is more and more widely used in clothing ironing.

Steam ironing machines can be divided into mechanical and electronic types in terms of circuit control. The mechanical type has no control panel and is low in price, but there is a problem: it cannot control the working time of the water pump. Specifically, when the ironing machine starts to work and heat up, the water pump starts to feed in water. Because the heating temperature of the heating body is low, the cold water cannot be vaporized in time. Especially on hand-held ironing machines or other ironing machines where the heating block is close to the air outlet, it is easy to spray water and affect the use effect. Therefore, it is necessary to improve it.

Utility model content

In order to solve the above technical problems, the present invention provides a water pump control device for a steam ironing machine. The water pump control device includes a power supply, a first control branch and a second control branch, the first control branch and The second control branch is connected in parallel with the power supply;

The first control branch includes a normally open switch, a water pump, and a first switch connected in sequence;

The second control branch includes a heating body and a normally closed switch connected in sequence.

Further, the operating temperature of the normally open switch is lower than the operating temperature of the normally closed switch.

Further, the water pump control device further includes a first connection point and a second connection point, the first connection point and the second connection point are divided into the first control branch and the second control branch The parallel connection point.

Further, the power source is a three-phase alternating current, the first connection point is connected to a live wire of the three-phase alternating current, and the second connection point is connected to a neutral wire of the three-phase alternating current.

Further, the water pump control device further includes a second switch; the second switch is connected in series between the power supply and the first connection point, or between the power supply and the second connection point.

Further, the control device further includes a thermal fuse, and the thermal fuse is connected in series between the power supply and the connection point, or between the power supply and the second connection point.

Correspondingly, the present invention also provides a steam ironing machine, which includes a boiler, a water tank and the above-mentioned water pump control device.

Further, the boiler is connected to the water tank through the water pump, and the heating body is arranged in the boiler.

Further, the heating body is arranged at the bottom of the boiler and/or the side wall of the boiler.

Implementing the embodiments of the present utility model has the following beneficial effects:

(1) By adding a normally-closed switch and a normally-open switch, the water pump can be heated to a certain temperature before entering the water, thereby avoiding the steam ironing machine from spraying water when it is turned on;

(2) Moreover, the normally closed switch and normally open switch can control the operation of the heating body and the water pump according to the temperature, so that the heating body does not burn dry, and the water pump enters water under appropriate conditions, making the entire operation process more reliable;

(3) And, the water pump control device of the present invention is simple and reliable, which is beneficial to reduce its cost.

Description of the drawings

In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, in the following description The drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

Figure 1 is a schematic diagram of the composition of the water pump control device of the present invention.

Among them, the corresponding signs in the figure are: 1- normally open thermostat; 2- water pump; 3- first switch; 4- heating body; 5- normally closed thermostat; 6-temperature fuse; 7-second Switch; 8-first connection point; 9-second connection point; L-live wire; E-ground wire; N-zero wire.

detailed description

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiment is only one embodiment of the present invention, not all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

The "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, but only In order to facilitate the description of the present utility model and simplify the description, it does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

In addition, unless otherwise clearly specified and limited, the terms "connected", "connected" and other terms should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrated; they may be mechanically connected or It can be an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be an internal connection between two components or an interaction relationship between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood according to specific circumstances.

Examples:

As shown in Figure 1, this embodiment provides a water pump 2 control device for a steam ironing machine. The water pump 2 control device includes a power supply, a first control branch, and a second control branch. And the second control branch are connected in parallel with the power supply;

The first control branch includes a normally open switch, a water pump 2 and a first switch 3 connected in sequence;

The second control branch includes a heating body 4 and a normally closed switch connected in sequence.

Further, the normally open switch is a normally open thermostat 1, and the normally closed switch is a normally closed thermostat 5.

That is, the normally open thermostat 1, the water pump 2 and the first switch 3 are connected in sequence to form a first control branch; the heating body 4 and the normally closed thermostat 5 are connected in sequence to form a second control branch. Control branch. The first control branch and the second control branch are connected in parallel with the power supply.

Further, the operating temperature of the normally open thermostat 1 is lower than the operating temperature of the normally closed thermostat 5.

Further, the water pump 2 control device further includes a first connection point 8 and a second connection point 9. The first connection point 8 and the second connection point 9 are divided into the first control branch and the Parallel connection point of the second control branch.

Further, the power source is three-phase alternating current, the first connection point 8 is connected to the live line L of the three-phase alternating current, and the second connection point 9 is connected to the neutral line N of the three-phase alternating current.

Further, the water pump 2 control device further includes a second switch 7; the second switch 7 is connected in series between the power supply and the first connection point 8.

The second switch 7 may also be connected in series between the power source and the second connection point 9.

Further, the control device further includes a thermal fuse 6, and the thermal fuse 6 is connected in series between the power supply and the connection point.

The thermal fuse 6 can also be connected in series between the power supply and the second connection point 9.

Correspondingly, the present invention also provides a steam ironing machine, which includes a boiler, a water tank and the aforementioned water pump 2 control device.

Further, the boiler is connected to the water tank through the water pump 2, and the heating body 4 is arranged in the boiler.

Further, the heating body 4 is arranged at the bottom of the boiler, and the heating body 4 may also be arranged on the side wall of the boiler, or may be arranged on both the bottom and the side wall of the boiler.

The working process of the steam ironing machine with the water pump 2 control device in this embodiment is:

The first stage: when the second switch 7 and the first switch 3 are closed, the second control branch is turned on, and the heating body 4 starts to heat up; when the temperature in the boiler reaches the operating temperature of the normally open thermostat 1, the Turn on the thermostat 1 and close, and the water pump 2 starts to pump water into the boiler. At this time, the temperature in the boiler continues to rise after a brief drop;

The second stage: When the temperature in the boiler reaches the operating temperature of the normally closed thermostat 5, the normally closed thermostat 5 is disconnected, the heating body 4 is powered off to stop heating, and the water pump 2 continues to pump water into the boiler. When the temperature in the boiler drops to the recovery temperature of the normally closed thermostat 5, the normally closed thermostat 5 is closed, and the heating body 4 is energized to continue heating; when the steam ironing machine is working, this stage Repeat

The third stage: When the second switch 7 is turned off, the water pump 2 stops working, and the heating body 4 also stops working. After the temperature in the boiler drops to a certain temperature, the normally closed thermostat 5 is reset to be in the on-state, and the normally open thermostat 1 is reset to be in the off-circuit state.

The above are the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made. These improvements and modifications Also regarded as the protection scope of the utility model.

Claims

A water pump control device for a steam ironing machine, wherein the water pump control device includes a power source, a first control branch and a second control branch, the first control branch and the second control branch Connected in parallel with the power supply;

The first control branch includes a normally open switch, a water pump, and a first switch connected in sequence;

The second control branch includes a heating body and a normally closed switch connected in sequence.
The water pump control device for a steam ironing machine according to claim 1, wherein the operating temperature of the normally open switch is lower than the operating temperature of the normally closed switch.
The water pump control device for a steam ironing machine according to claim 2, wherein the normally open switch is a normally open thermostat, and the normally closed switch is a normally closed thermostat.
The water pump control device for a steam ironing machine according to claim 1, wherein the water pump control device further comprises a first connection point and a second connection point, the first connection point and the second connection point The connection points are divided into parallel connection points of the first control branch and the second control branch.
The water pump control device for a steam ironing machine according to claim 4, wherein the power source is three-phase alternating current, the first connection point is connected to the live wire of the three-phase alternating current, and the second The connection point is connected to the neutral line of the three-phase alternating current.
The water pump control device for a steam ironing machine according to claim 4, wherein the water pump control device further comprises a second switch; the second switch is connected in series with the power supply and the first connection point Between or in series between the power supply and the second connection point.
The water pump control device for a steam ironing machine according to claim 4, wherein the control device further comprises a thermal fuse, and the thermal fuse is connected in series between the power supply and the connection point, or in series Between the power source and the second connection point.
A steam ironing machine, wherein the steam ironing machine comprises a boiler, a water tank and the water pump control device according to any one of claims 1-7.
8. The water pump control device of a steam ironing machine according to claim 8, wherein the boiler is connected to the water tank through the water pump, and the heating body is arranged in the boiler.
The water pump control device for a steam ironing machine according to claim 9, wherein the heating body is arranged at the bottom of the boiler and/or the side wall of the boiler.