CN208536397U - Hot water equipment with antifreeze - Google Patents

Abstract

The utility model provides a hot water device with an antifreeze device, which comprises a casing, a water inlet pipe and a water outlet pipe extending out of the casing, and an antifreeze device arranged in association with the water inlet pipe and the water outlet pipe. The antifreeze device includes a heating wire with a resistance wire inside, the heating wire has a heating section and a conduction section, wherein the heating section is connected to the water inlet pipe and the water outlet pipe. The resistance wire in the heating wire is constructed such that the heat generation of the resistance wire in the heating section is greater than the heat generation of the resistance wire in the conduction section. Because the resistance wire in the conduction section of the heating wire is configured to only conduct electricity without generating a large amount of heat energy, the antifreeze device of the present invention can greatly reduce the consumption of electric energy while providing the antifreeze function.

Description

The hot water facility for having defroster

Technical field

The utility model belongs to domestic electric appliance field, and in particular to a kind of hot water facility for having defroster.

Background technique

Domestic hot water's equipment, such as electric heater, gas heater or gas fired-boiler, solar water heater are sometimes for peace Mounted in outdoor.When winter low temperature, when especially temperature is lower than subzero, remains in water in the water pipe of equipment and is possible to freeze, So as to lead to water pipe from freezing crack.Electric heater unit would generally be set on water pipe in the prior art, by heating pipe Water avoids the water freezing in pipe.Heating device is usually resistance-type heater strip, and electric energy is exactly converted into thermal energy.Obviously, exist Heating process needs to expend a large amount of electric energy, especially wherein only plays the resistance wire of connection, electric action, also needs to expend big The electric energy of amount, but the thermal energy of its conversion can not utilize.

In view of this, it is necessary to which existing defroster is improved to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of hot water facilities can prevent with improved defroster providing The consumption of electric energy is greatly reduced while freezing function.

To achieve the above object, the utility model provides a kind of hot water facility comprising shell, the water inlet for extending shell Manage the defroster that setting is associated with outlet pipe and with water inlet pipe with outlet pipe.Defroster is equipped with resistance wire in including Heating wires, the heating wires have bringing-up section and conductive sections, and wherein bringing-up section is connected on water inlet pipe and outlet pipe.Heating is led Resistance wire in line is so constructed, so that the calorific value of the resistance wire in bringing-up section is greater than the fever of conductive sections internal resistance wire Amount.

The density for being located at the unit length of the resistance wire in bringing-up section as a further improvement of the utility model, is greater than position In the density of the unit length of the resistance wire in conductive sections.

Heating wires are additionally provided with inner insulating layer and external insulation layer as a further improvement of the utility model,；Resistance wire position It between inside and outside insulating layer, and is wrapped on inner insulating layer, is passed wherein the number of turns for the resistance wire being located in bringing-up section is greater than to be located at Lead the number of turns of the resistance wire in section.

Defroster further includes by heating wires and the fixed company of inlet tube and outlet tube as a further improvement of the utility model, The fixing clamp connect, wherein the bringing-up section of heating wires is connected on fixing clamp.

Heating wires and inlet tube and outlet tube are without directly contact as a further improvement of the utility model,.

Fixing clamp has the pipe clamp gripping arm of clamping inlet tube and outlet tube as a further improvement of the utility model, and clamping adds The wire clamp gripping arm of thermal wire, wherein pipe clamp gripping arm and the bending in the opposite direction of wire clamp gripping arm.

Defroster further includes the temperature controller being arranged in outside shell as a further improvement of the utility model, and heating is led Line is electrically connected with the temperature controller.

Compared with prior art, the utility model has the beneficial effects that due to the resistance wire in the conductive sections of heating wires It is configured only to conductive effect, without generating a large amount of thermal energy, so that the defroster of the utility model be made to provide The consumption of electric energy is greatly reduced while antifreeze function.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, be described below in related reality It is only some embodiments of the utility model with novel attached drawing, for those of ordinary skill in the art, is not paying Under the premise of creative work, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the stereoscopic schematic diagram of the hot water facility of the utility model in a specific embodiment；

Fig. 2 is the stereoscopic schematic diagram of the fixing clamp in the defroster of hot water facility shown in FIG. 1；

Fig. 3 is the schematic cross-sectional view of the heating wires in the defroster of hot water facility shown in FIG. 1.

Specific embodiment

The utility model is described in detail below with reference to each embodiment shown in the drawings.But these embodiments It is not intended to limit the utility model, structure, method or the function that those skilled in the art are made according to these embodiments Transformation on energy is all contained in the protection scope of the utility model.

Domestic hot water's equipment can be used to provide domestic hot-water, such as electric heater, gas heater or solar water Device；It can be used for indoor heating, such as gas fired-boiler, heat accumulation water pot.Next to this by taking gas fired-boiler shown in FIG. 1 as an example The hot water facility of utility model is illustrated.

As shown in Figure 1, gas fired-boiler 100 includes shell 10, and receiving inside the shell for heating the heat source of cold water.At this In embodiment, which can be the burner for combustion gas and air mixture.It is usually also wrapped in gas fired-boiler 100 Include air valve (not shown), heat exchanger (not shown) and the fume extractor (not shown) etc. for controlling gas supply.Combustion Gas is entered in burner together with air by the control of air valve, combustion gas and air be sufficiently mixed in burner after, burning It is ignited at the top of device.The heat that burner combustion generates is changed through over-heat-exchanger, and with by the water pipe of heat exchanger Heat.It can be connect with the water inlet pipe 11 and an outlet pipe 12 for extending shell by the water pipe of heat exchanger.Cold water passes through cold water Pipe enters inside equipment, and after be discharged after heat exchanger heats, through outlet pipe 12 for using.

For outdoor gas fired-boiler 100 is arranged in, the convex water inlet pipe 11 being exposed to outside shell 10 and outlet pipe 12 exist When low temperature, the interior water retained is very easy to freeze.For this purpose, a defroster is associated with and sets with the water inlet pipe 11 and outlet pipe 12 It sets.As shown in Figure 1, the defroster includes a heating wires 20, a fixing clamp 30 and a temperature controller 40.Heating wires 20 Extend from the cable clamp for being fixed on 10 bottom of shell, there are two strands, one heating wires passes through water inlet pipe 11 and outlet pipe It is electrically connected after 12 with temperature controller 40, another burst of heating wires are then connected directly to temperature controller 40.Inside the housing, heating wires 20 It is electrically connected with the forceful electric power interface on equipment control circuit plate (not shown).Temperature controller 40 is arranged outside the shell, outer for perceiving Boundary's temperature change, and it is lower than set temperature in ambient temperature, when such as zero degree, internal mechanical or electronic switch will be connect Logical circuit, so that heating wires 20 be made to be connected.

Heating wires 20 may include two parts, and a part is the bringing-up section 21 connecting with water inlet pipe 11 and outlet pipe 12, Rest part be then be connected between bringing-up section 21, the main conductive sections 22 for playing electric action.Cooperation is antifreeze referring to shown in Fig. 2 Device further includes the fixing clamp 30 for being fixedly connected with heating wires 20 with inlet tube and outlet tube 11,12, wherein the bringing-up section of heating wires 21 are connected on fixing clamp.Fixing clamp 30 has a pair of of pipe clamp gripping arm 31 of clamping inlet tube and outlet tube, and clamps heating wires 20 Two groups of wire clamp gripping arms 32.Fixing clamp is made of the sheet metal that may be adapted to conduct heat, pipe clamp gripping arm 31 and wire clamp gripping arm 32 The punching press from sheet metal and go out, and bending forms in the opposite direction.Accommodating chamber 321 is formed in wire clamp gripping arm 32, heating is led The bringing-up section 21 of line 20 is passed through out of fixing clamp 30 one group of accommodating chamber 321, and then bending passes back through another group of accommodating chamber 321, so that the bringing-up section 21 being fixed on fixing clamp 30 is substantially in inverted U-shape.Heating wires 20 and inlet tube and outlet tube 11, 12 have no direct contact, but are realized by the fixing clamp of metal material 30 thermally conductive.

Resistance wire is equipped in heating wires 20, which is so constructed in heating wires 20, so that bringing-up section The calorific value of resistance wire in 21 is greater than the calorific value of 22 internal resistance wire of conductive sections.In embodiment as shown in Figure 3, heating is led Line 20 is equipped with inner insulating layer 201, external insulation layer 203, and between inside and outside insulating layer and is wrapped on inner insulating layer Resistance wire 202.The number of turns for being wherein located at the resistance wire in bringing-up section 21 is greater than the number of turns for the resistance wire being located in conductive sections, also To say, resistance wire 202 in heating wires 20 and non-uniform Distribution, the unit length of the resistance wire in bringing-up section 21 it is close Degree is greater than the density of the unit length for the resistance wire being located in conductive sections 22.By this construction, so that the biography of heating wires 20 The resistance wire for leading section 22 only plays conduction, without generating a large amount of thermal energy, so that defroster is providing antifreeze function While the consumption of electric energy can be greatly reduced.It in other embodiments, can be in the bringing-up section 21 and conduction of heating wires 20 The resistance wire of the same material of different cross section size is respectively adopted in section 22 or the resistance wire of unlike material is respectively adopted, thus So that the calorific value of the resistance wire in bringing-up section 21 is greater than the calorific value of the resistance wire in rest part (conductive sections 22).

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. A hot water device with an antifreeze device, characterized in that: the device comprises a casing, a water inlet pipe and a water outlet pipe extending out of the casing, and an antifreeze device arranged in association with the water inlet pipe and the water outlet pipe; the antifreeze device includes an inner A heating wire provided with a resistance wire, the heating wire has a heating section and a conduction section, wherein the heating section is connected to the water inlet pipe and the water outlet pipe; the resistance wire in the heating wire is constructed such that the resistance in the heating section is The calorific value of the wire is greater than the calorific value of the resistance wire in the conduction section. 2 . The hot water equipment with an antifreeze device according to claim 1 , wherein the density per unit length of the resistance wires in the heating section is greater than the density per unit length of the resistance wires in the conduction section. 3 . 3. The hot water equipment with antifreeze device according to claim 1 or 2, characterized in that: the heating wire is further provided with an inner insulating layer and an outer insulating layer; the resistance wire is located between the inner and outer insulating layers , and wound on the inner insulating layer, wherein the number of turns of the resistance wire in the heating section is greater than the number of turns of the resistance wire in the conduction section. 4 . The hot water equipment with an antifreeze device according to claim 1 , wherein the antifreeze device further comprises a fixing clip for fixedly connecting the heating wire with the water inlet and outlet pipes, wherein the heating section of the heating wire is connected in the fixed position. 5 . clip on. 5 . The hot water equipment with an antifreeze device according to claim 4 , wherein the heating wire is not in direct contact with the water inlet and outlet pipes. 6 . 6. The hot water equipment with antifreeze device according to claim 4 or 5, wherein the fixing clip has a pipe holding arm for holding the water inlet and outlet pipes, and a wire holding arm for holding the heating wire ; The pipe gripping arm and the wire gripping arm are bent in opposite directions. 7 . The hot water appliance with an antifreeze device according to claim 1 , wherein the antifreeze device further comprises a thermostat arranged outside the casing, and the heating wire is electrically connected to the thermostat. 8 .