CN205299915U - Electric water heater - Google Patents

Abstract

The application discloses an electric water heater, including can hold liquid the inner bag, stretch into inside inlet tube and the outlet pipe of inner bag, the inlet tube and/or the outlet pipe is located be provided with first heating mechanism in the part in the inner bag, first heating mechanism is used for heating rivers. First heating mechanism include at least one PTC heating element, the cover locate the inlet tube or the outer separator of outlet pipe, the separator with the inlet tube or be formed with airtight annular space between the outlet pipe, at least one PTC heating element is located in the airtight annular space. At least one PTC heating element follows the inlet tube or outlet pipe extending direction arranges and books length. The electric water heater that this application provided can promote user's water and experience.

Description

Electric water heater

Technical field

The application relates to field of water heaters, particularly relates to a kind of electric water heater.

Background technology

At present, water-heater has become a kind of quite universal household electrical appliance, and existing water-heater mainly comprises: gas heater, solar water heater and electric water heater. Wherein electric water heater is the water-heater carrying out using electricity as the energy heating. Anode bar that electric water heater generally includes water tank, be arranged on having on water tank prevents inner water tank from corroding, the electrically heated rod for water in heating water tank, water inlet pipe, rising pipe, and the pressure release valve being arranged on water inlet pipe, rising pipe.

And existing electric water heater is in use, user usually need first to wait electric water heater first the water in interior courage is heated to temperature required after just can use, be heated to temperature required after in electrically heated rod in courage can stop heating. This hot water just causing the water after user does not use heating in time or not being finished in interior courage in time, water in interior courage can produce certain cooling after a certain time, in this case, user need to wait electric water heater again the water in interior courage is heated to temperature required after just can use, cause user's experience poor.

In addition, when interior courage inputs a large amount of normal-temperature water by water inlet pipe, now, it is longer that above-mentioned water is heated to the temperature required time by the electrically heated rod in interior courage, causes period of reservation of number longer, and user's experience also can be caused poor.

Practical novel content

In view of the deficiencies in the prior art, the application is necessary to provide a kind of electric water heater, can at least one of solve the problem.

For achieving the above object, the application provides a kind of electric water heater, comprises the interior courage of energy receiving fluids, the water inlet pipe stretching into described interior courage inside and rising pipe; Described water inlet pipe and/or described rising pipe are positioned in the part of described courage to be provided with the first heating arrangements, and described first heating arrangements is for heating current.

As one preferred embodiment, described first heating arrangements comprises at least one PTC Heating element, is sheathed on described water inlet pipe or isolation part outside described rising pipe; Being formed with airtight annular space between described isolation part and described water inlet pipe or described rising pipe, at least one PTC Heating element described is positioned at described airtight annular space.

As one preferred embodiment, at least one PTC Heating element described is along described water inlet pipe or described rising pipe bearing of trend arrangement predetermined length.

As one preferred embodiment, described first heating arrangements is arranged near the bottom of described interior courage.

As one preferred embodiment, the part that described water inlet pipe or described rising pipe are positioned at described courage has the heating zone bottom described courage, and described first heating arrangements is arranged in described heating zone.

As one preferred embodiment, the area of at least one PTC Heating element described is less than or equal to 72 square centimeters.

As one preferred embodiment, the thermal value of the unit surface of at least one PTC Heating element described is more than or equal to 5 square centimeters/220W.

As one preferred embodiment, described PTC Heating element comprises ceramic heat chip and electrode slice.

As one preferred embodiment, described first heating arrangements comprises the insulation layer of at least two layers of coated described PTC Heating element.

As one preferred embodiment, described at least dielectric layers is always withstand voltage is at least 3000V.

As one preferred embodiment, the thickness of every layer of described insulation layer is at 20 to 100 ��m.

As one preferred embodiment, being provided with the 2nd heating arrangements in described interior courage, described 2nd heating arrangements is arranged near the bottom of described interior courage.

As one preferred embodiment, described 2nd heating arrangements is PTC heating unit.

As one preferred embodiment, also comprising the first control module, described first control module is used for when the first heating arrangements described in user's use water control and described 2nd heating arrangements start heating simultaneously.

By describing above and can find out, the electric water heater that the application provides by arranging the first heating arrangements on the water inlet pipe of interior courage inside, first heating arrangements is inputted before water at interior courage and completes the once heating to water, and then user can be shortened when internally the water in courage heats again and wait heat-up time; In addition, by arranging the first heating arrangements on rising pipe, can also make the first heating arrangements can internally courage discharge water again heat, whole water in interior courage are heated to preset temperature without the need to waiting by user, it can be seen that the electric water heater that the application provides can be tested by improvement water body preferably.

In addition, in Large Copacity electric water heater use procedure, after heating sometimes user once longer with the water time or be interrupted use time, water in interior courage produces certain temperature and is down to after below preset temp, now user cannot use warm water or hot water, but actual user only used the part hot water in interior courage, and in internal courage, hot water does not use completely, this just is easy to make user to form the perception of " Large Copacity electric water heater capacity is also little ", affects Consumer's Experience. For this problem, present embodiment is by arranging the first heating arrangements, make the first heating arrangements that the water flowing out interior courage (enter rising pipe and be courage in outflow) is carried out second-heating, even if the water temp in interior courage has certain reduction, also the leaving water temperature(LWT) of electric water heater can be ensured, and then the water in courage can be utilized largely in ensureing, promote testing with water body of user.

With reference to explanation hereinafter and accompanying drawing, disclose in detail particular implementation of the present utility model, specify the mode that principle of the present utility model can be used. It is to be understood that thus enforcement mode of the present utility model is not restricted in scope. In the spirit of claims and the scope of clause, enforcement mode of the present utility model comprises many changes, amendment and is equal to.

Describe and/or the feature that illustrates can use in same or similar mode in one or more other enforcement mode for a kind of mode of implementing, combine mutually with the feature in other enforcement mode, or the feature substituted in other enforcement mode.

It is emphasized that refer to the existence of feature, one integral piece, step or assembly herein when term " comprise/comprise " uses, but do not get rid of the existence or additional of one or more further feature, one integral piece, step or assembly.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a kind of electric water heater structural representation implemented mode and provide of the application;

Fig. 2 is the first heating arrangements structural representation of electric water heater shown in Fig. 1;

Fig. 3 is the C C place sectional view of the first heating arrangements shown in Fig. 2.

Embodiment

In order to make those skilled in the art understand the technical scheme in the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments. Based on the embodiment in the application, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the utility model protection.

It should be noted that, when element is called as " being arranged at " another element, it can directly on another element or can also there is element placed in the middle. When an element is considered as " connection " another element, it can be directly connected to another element or may there is element placed in the middle simultaneously. Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is mode of uniquely implementing.

Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually. The term used in specification sheets of the present utility model herein is the object in order to describe concrete enforcement mode, is not intended to be restriction the utility model. Term as used herein "and/or" comprises arbitrary and all combinations of one or more relevant Listed Items.

Referring to Fig. 1 to Fig. 3, a kind of enforcement mode of the application provides a kind of electric water heater, comprises the interior courage 100 of energy receiving fluids, the water inlet pipe 102 stretching into described interior courage 100 inside and rising pipe 101; Described water inlet pipe 102 and/or described rising pipe 101 are positioned in the part of described courage 100 to be provided with the first heating arrangements 200, and described first heating arrangements 200 is for heating current.

It is arranged on water inlet pipe 102 for the first heating arrangements 200, water under normal temperature inside courage 100 course of conveying was once heated by the first heating arrangements 200 before entering interior courage 100, and the current in water inlet pipe 102 when the first heating arrangements 200 owing to this instantaneous water yield is less, the heats of the first heating arrangements 200 is comparatively obvious, and then fast lifting can enter the temperature of water in interior courage 100, based on this, the water inputted in interior courage 100 possesses certain temperature rise owing to once heating. Meanwhile, owing to this first heating arrangements 200 is arranged in courage 100 equally, this just makes to enter the water in interior courage 100 and still can be heated by the first heating arrangements 200, and then fast lifting is to preset temperature.

Taking the first heating arrangements 200 for carrying out being heated to be example as rising pipe 101 water outlet, when water in interior courage 100 does not reach preset temperature, after water in interior courage 100 is discharged, current can through the first heating arrangements 200, now, current can be heated by the first heating arrangements 200, due to the current in rising pipe 101 when the first heating arrangements 200 owing to this instantaneous water yield is less, the heats of the first heating arrangements 200 is comparatively obvious, so can fast lifting enter water in interior courage 100 temperature to preset temperature.

By describing above and can find out, the electric water heater that present embodiment provides by arranging the first heating arrangements 200 on the water inlet pipe 102 of interior courage 100 inside, make the first heating arrangements 200 complete the once heating to water before interior courage 100 inputs water, and then user can be shortened when internally the water in courage 100 heats again and wait heat-up time; In addition, by arranging the first heating arrangements 200 on rising pipe 101, can also make the first heating arrangements 200 can internally courage 100 discharge water again heat, whole water in interior courage 100 are heated to preset temperature without the need to waiting by user, it can be seen that the electric water heater that present embodiment provides can be tested by improvement water body preferably.

In addition, in Large Copacity electric water heater use procedure, after heating sometimes user once longer with the water time or be interrupted use time, water in interior courage 100 produces certain temperature and is down to after below preset temp, now user cannot use warm water or hot water, but actual user only used the part hot water in interior courage 100, and in internal courage 100, hot water does not use completely, this just is easy to make user to form the perception of " Large Copacity electric water heater capacity is also little ", affects Consumer's Experience. For this problem, present embodiment is by arranging the first heating arrangements 200, make the first heating arrangements 200 that the water flowing out interior courage 100 (enter rising pipe 101 and be courage 100 in outflow) is carried out second-heating, even if the water temp in interior courage 100 has certain reduction, also the leaving water temperature(LWT) of electric water heater can be ensured, and then the water in courage 100 can be utilized largely in ensureing, promote testing with water body of user.

Referring to figure, in the present embodiment, for preventing ground wire loose contact or do not have ground wire problem, described electric water heater can be two electric appliances electric water heaters. Certainly, the application is not limited to two electric appliances, and the electric water heater of present embodiment can also be applied to an electric appliances.

In present embodiment, one end of rising pipe 101 can be stretched in interior courage 100, the water-in of its end can near the top of interior courage 100, to obtain hot water preferably. Water inlet pipe 102 stretches into the bottom of interior courage 100, the water outlet of its end near the bottom of interior courage 100, better to heat cold water.

First heating arrangements 200 is arranged in interior courage 100, actual arrange, first heating arrangements 200 is possible not only to be heated by the current in water inlet pipe 102/ rising pipe 101, can also internally in courage 100 water heat, arranged by this kind, it is possible to farthest utilize the heat that the first heating arrangements 200 produces.

First heating arrangements 200 is arranged on water inlet pipe 102 and/or rising pipe 101. For ensureing the heats for the current in water inlet pipe 102 and/or rising pipe 101, first heating arrangements 200 can have certain length along the bearing of trend of water inlet pipe 102 and/or rising pipe 101, meanwhile, described first heating arrangements 200 can be arranged near the bottom of described interior courage 100.For adapting to the structure of the first heating arrangements 200, the part that described water inlet pipe 102 or described rising pipe 101 are positioned at described courage 100 can have the heating zone bottom described courage 100, and described first heating arrangements 200 is arranged in described heating zone.

In the present embodiment, the isolation part 201 that described first heating arrangements 200 can comprise at least one PTC Heating element 202, be sheathed on outside described water inlet pipe 102 or described rising pipe 101. Being formed with airtight annular space 150 between described isolation part 201 and described water inlet pipe 102 or described rising pipe 101, at least one PTC Heating element 202 described is positioned at described airtight annular space 150. PTC Heating element 202 and the water in interior courage 100 can be separated by described isolation part 201, avoid causing short circuit accident.

As shown in Figure 2 and Figure 3, described isolation part 201 is sheathed on rising pipe 101 and and is positioned at courage 100 outward, and it is equivalent to be arranged at protecting sheathing outside PTC Heating element 202. In the two ends of isolation part 201, be tightly connected interior courage 100, the other end and rising pipe 101 of one end is tightly connected. In actual, can being provided with sealing-ring 203 between isolation part 201 one end and rising pipe 101, the other end can be provided with stifled 204, and then isolation part 201 inside can form described airtight annular space 150 to hold PTC Heating element 202. Described isolation part 201 can have good heat conduction heat transfer property, and such as its material can be aluminium system.

In present embodiment, the first heating arrangements 200 has at least one PTC Heating element 202. At least one PTC Heating element 202 is arranged at least one row. Wherein, the single-row total area of described Heating element can be less than or equal to 72 square centimeters. The thermal value of the single-row total area of described Heating element can be more than or equal to 13.6 square centimeters/kilowatt. Described PTC Heating element 202 can comprise ceramic heat chip and electrode slice.

For preventing electric leakage accident, outside described PTC Heating element 202, at least dielectric layers can be coated with. Described at least dielectric layers is withstand voltage can be at least 3000V. The thickness of every layer of described insulation layer is at 20��100 ��m.

In present embodiment, for ensureing heats, the first heating arrangements 200 can have multiple PTC Heating element 202. Multiple PTC Heating element 202 can along along described water inlet pipe 102 or described rising pipe 101 bearing of trend arrangement predetermined length, effectively to ensure the heats to current. Predetermined length can be formulated according to practical situation such as the caliber of water inlet pipe 102/ rising pipe 101, flow rate of water flow, water temperature, interior courage 100 capacity. Certainly, predetermined length is more long, and the temperature rise effect that the first heating arrangements 200 heats for current is more obvious.

It should be noted that, when PTC Heating element 202 is multiple, multiple PTC Heating element 202 is totally arrange along current direction along current direction, spacing between the PTC Heating element 202 of PTC Heating element 202 to the terminal position of zero position is predetermined length, wherein, PTC Heating element 202 between the PTC Heating element 202 of PTC Heating element 202 to the terminal position of zero position evenly can be equally spaced along current direction, can also being discrete distribution, the application impose any restrictions.

As preferably scheme, at least one PTC Heating element 202 described is between described isolation part 201 and water inlet pipe 102 and/or rising pipe 101, it is possible to be arranged at least one row along current direction.As shown in Figure 3, described PTC Heating element 202 is arranged into two row between described isolation part 201 and water inlet pipe 102 and/or rising pipe 101.

In a preferably enforcement mode, can being provided with the 2nd heating arrangements 103 in described interior courage 100, it only heats for the water in internal courage 100. 2nd heating arrangements 103 can have multiple way of realization, such as electrically heated rod. On the basis with the first heating arrangements 200 and the 2nd heating arrangements 103 simultaneously, it is possible to the temperature of water in courage 100 in fast lifting, it is possible to effectively reduce period of reservation of number, promotes Consumer's Experience.

For making heating rapidly and stablize, described 2nd heating arrangements 103 can be arranged near the bottom of described interior courage 100 as shown in Figure 1. Concrete, described 2nd heating arrangements 103 can be PTC heating unit.

In one embodiment, electric water heater can also comprise control module (not shown). Described control module is used for when described in user's use water control, the first heating arrangements 200 starts heating with described 2nd heating arrangements 103 simultaneously. By arranging control module, it is ensured that have sufficient hot water/warm water when user's water. In actual use procedure, when water temperature in interior courage 100 is lower, first heating arrangements 200 and the 2nd heating arrangements 103 can together heat, by water flow temperature fast lifting to preset temperature under the acting in conjunction of the first heating arrangements 200 and the 2nd heating arrangements 103. It should be noted that, control module can have entity hardware structure, such as CPU, micro-chip, PLC etc.

Any numeral value quoted herein all comprises between lower value to higher limit all values with the lower value of an incremented and upper value, there is the interval of at least two units between any lower value and any much higher value. For example, if having set forth the quantity of parts or the value of process variable (such as temperature, pressure, time etc.) is from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then object also lists such as 15 to 85,22 to 68,43 to 51,30 to 32 equivalence in this specification sheets clearly to illustrate. For the value being less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1. These are only the examples wanting clearly to express, it is possible to think that likely combining of the numerical value enumerated between Schwellenwert and maximum is all set forth clearly at this specification sheets in a similar manner.

Unless otherwise explanation, all scopes all comprise all numerals between end points and end points. " approximately " or " being similar to " used together with scope is suitable for two end points of this scope. Thus, " about 20 to 30 " are intended to cover " about 20 to about 30 ", at least comprise the end points indicated.

The all articles disclosed and bibliography, comprise patent application and publication, be incorporated into this by quoting for various purposes. Describe combination term " substantially by ... form " determined element, composition, parts or step should be comprised and substantially not affect other elements of the basic novel feature of this combination, composition, parts or step. Term " comprising " or the combination that describes " comprising " element here, composition, parts or step is used also to contemplate the enforcement mode being substantially made up of these elements, composition, parts or step. Here with the use of term " can ", it is intended to illustrate " can " described any attribute of comprising is all optional.

Multiple element, composition, parts or step can be provided by single integrated element, composition, parts or step.Alternatively, single integrated element, composition, parts or step can be divided into multiple elements of separation, composition, parts or step. The open "a" or "an" being used for describing element, composition, parts or step does not say the element in order to get rid of other, composition, parts or step.

Describe it is to be understood that above is to carry out illustrating instead of in order to limit. By reading foregoing description, many enforcement modes and many application outside the example provided will be all apparent for a person skilled in the art. Therefore, the scope of this instruction should do not determined with reference to foregoing description, but should determine with reference to whole scopes of the Equivalent that claims and these claims have. For comprehensive object, all articles and with reference to comprising the open all by reference to being combined in herein of patent application and bulletin. Aforementioned claim is omitted theme disclosed herein any in be not to abandon this body matter, also should not be considered as the part that this theme is not thought of as disclosed practical novel theme by contriver.

Claims (14)

1. an electric water heater, comprises the interior courage of energy receiving fluids, the water inlet pipe stretching into described interior courage inside and rising pipe; It is characterized in that: described water inlet pipe and/or described rising pipe are positioned in the part of described courage to be provided with the first heating arrangements, described first heating arrangements is for heating current.

2. electric water heater as claimed in claim 1, it is characterised in that: described first heating arrangements comprises at least one PTC Heating element, be sheathed on described water inlet pipe or isolation part outside described rising pipe; Being formed with airtight annular space between described isolation part and described water inlet pipe or described rising pipe, at least one PTC Heating element described is positioned at described airtight annular space.

3. electric water heater as claimed in claim 2, it is characterised in that: at least one PTC Heating element described is along described water inlet pipe or described rising pipe bearing of trend arrangement predetermined length.

4. electric water heater as claimed in claim 1, it is characterised in that: described first heating arrangements is arranged near the bottom of described interior courage.

5. electric water heater as claimed in claim 4, it is characterised in that: the part that described water inlet pipe or described rising pipe are positioned at described courage has the heating zone bottom described courage, and described first heating arrangements is arranged in described heating zone.

6. electric water heater according to claim 2, it is characterised in that: the area of at least one PTC Heating element described is less than or equal to 72 square centimeters.

7. electric water heater according to claim 6, it is characterised in that: the thermal value of the unit surface of at least one PTC Heating element described is more than or equal to 5 square centimeters/220W.

8. electric water heater according to claim 2, it is characterised in that: described PTC Heating element comprises ceramic heat chip and electrode slice.

9. electric water heater according to claim 2, it is characterised in that: described first heating arrangements comprises the insulation layer of at least two layers of coated described PTC Heating element.

10. electric water heater according to claim 9, it is characterised in that: described at least dielectric layers is always withstand voltage is at least 3000V.

11. electric water heaters according to claim 10, it is characterised in that: the thickness of every layer of described insulation layer is at 20 to 100 ��m.

12. as arbitrary in claim 1 to 11 as described in electric water heater, it is characterised in that: being provided with the 2nd heating arrangements in described interior courage, described 2nd heating arrangements is arranged near the bottom of described interior courage.

13. electric water heaters as claimed in claim 12, it is characterised in that: described 2nd heating arrangements is PTC heating unit.

14. electric water heaters according to claim 12, it is characterised in that: also comprising the first control module, described first control module is used for when the first heating arrangements described in user's use water control and described 2nd heating arrangements start heating simultaneously.