CN210624882U - Instant electric water heater - Google Patents
Instant electric water heater Download PDFInfo
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- CN210624882U CN210624882U CN201920433148.2U CN201920433148U CN210624882U CN 210624882 U CN210624882 U CN 210624882U CN 201920433148 U CN201920433148 U CN 201920433148U CN 210624882 U CN210624882 U CN 210624882U
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Abstract
The utility model discloses an instant electric water heater. Instant electric water heater, comprising: the device comprises a shell, a first mounting cavity and a second mounting cavity are formed in the shell; the electric heating module is provided with a water inlet and a water outlet and is used for heating cold water input from the water inlet and outputting hot water from the water outlet; the storage batteries are used for storing electric energy; the charging and discharging module is used for controlling the storage battery to charge and controlling the storage battery to discharge so as to supply power to the electric heating module; the electric heating module is arranged in the first mounting cavity, and the charging and discharging module and the storage battery are arranged in the second mounting cavity. The influence of the water leakage of the electric heating module on the battery is avoided, so that the use safety and reliability of the electric water heater are improved.
Description
Technical Field
The utility model belongs to the technical field of domestic appliance, especially, relate to an instant heating type electric water heater.
Background
At present, water heaters are household appliances commonly used in daily life, wherein electric water heaters are widely used due to small volume, and instant water heaters with instant heating function are used by more users due to convenient use. However, due to the current limitation of the household electric wire, the power of the instant water heater is low, and the requirement of a user on large-flow bathing cannot be met. Chinese patent application No. 2018107213469 discloses an instant heating type electric heating device equipped with a storage battery, that is, an instant heating type water supply is realized by using a battery pack to provide electric energy for the electric heating device for heating. The electric heating device is connected with the water inlet pipe, water leakage is easy to occur, and the battery pack and the electric heating device are positioned in the shell and can be influenced by water leakage to cause short circuit, so that the use safety and reliability are lower. How to design an electric water heater that the safe in utilization reliability is high is the utility model discloses the technical problem that will solve.
Disclosure of Invention
The utility model discloses to the above-mentioned technical problem who exists among the prior art, provide an instant heating type electric water heater, realize separating electric heating module and battery and set up in order to realize the water and electricity isolation, avoid electric heating module to leak and cause the influence to the battery to improve electric water heater's safe reliability in utilization.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
the utility model provides an instant heating type electric water heater, include:
the device comprises a shell, a first mounting cavity and a second mounting cavity are formed in the shell;
the electric heating module is provided with a water inlet and a water outlet and is used for heating cold water input from the water inlet and outputting hot water from the water outlet;
the storage batteries are used for storing electric energy;
the charging and discharging module is used for controlling the storage battery to charge and controlling the storage battery to discharge so as to supply power to the electric heating module;
the electric heating module is arranged in the first mounting cavity, and the charging and discharging module and the storage battery are arranged in the second mounting cavity.
Furthermore, a partition board is arranged in the shell and divides the interior of the shell into the first installation cavity and the second installation cavity.
Furthermore, a wiring hole is formed in the partition plate, the electric heating module is connected with the charging and discharging module through a power supply cable, and the power supply cable penetrates through the wiring hole.
Furthermore, the bottom of the first mounting cavity is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with the water inlet, and the water outlet pipe is connected with the water outlet.
Further, the method also comprises the following steps: the cooling water pipe is positioned in the second mounting cavity and is in heat transfer connection with the storage battery; the water inlet pipe is connected with the water inlet through the cooling water pipe; the partition plate is provided with a mounting hole, and the cooling water pipe penetrates through the mounting hole.
Further, the method also comprises the following steps: the heat dissipation frame is used for installing the storage battery and is used for dissipating heat released by the storage battery, the heat dissipation frame is located in the second installation cavity, and the cooling water pipe is attached to the heat dissipation frame.
Furthermore, a water leakage detector is arranged at the bottom of the first mounting cavity.
Further, the method also comprises the following steps: the flow sensor is used for detecting the water inlet flow or the water outlet flow of the electric heating module; the first temperature sensor is used for detecting the water inlet temperature of the water inlet; the second temperature sensor is used for detecting the outlet water temperature of the water outlet; the controller is used for controlling the charging and discharging module to operate according to set parameters and signals detected by the flow sensor, the first temperature sensor and the second temperature sensor.
Compared with the prior art, the utility model discloses an advantage is with positive effect: through forming the installation cavity of two mutual isolations in the shell, realize that electric heating module and battery keep apart and install in the installation cavity of difference, even if the electric heating module appears under the condition that leaks, because battery and electric heating module keep apart, can avoid leaking the short circuit that causes the battery to improve electric water heater's safe reliability in utilization.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an electric water heater of the present invention;
FIG. 2 is a diagram of a distribution of components inside a housing according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an electric storage module according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of area A of FIG. 3;
FIG. 5 is a second schematic structural diagram of an electric storage module according to an embodiment of the present invention;
FIG. 6 is an enlarged partial view of the area B in FIG. 5;
fig. 7 is a schematic structural view of a main frame in an embodiment of the electric water heater of the present invention;
fig. 8 is one of the schematic structural diagrams of the electric heating module in the embodiment of the electric water heater of the present invention;
fig. 9 is a cross-sectional view of an electric heating module in an embodiment of the electric water heater of the present invention;
fig. 10 is a schematic view of a partial structure of an electric heating module in an embodiment of the electric water heater of the present invention;
fig. 11 is a second distribution diagram of the devices inside the housing of the embodiment of the present invention;
fig. 12 is a third distribution diagram of the devices inside the housing in the embodiment of the present invention;
fig. 13 is a second schematic structural diagram of the electric heating module in the embodiment of the electric water heater of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-2, the water heater of the present embodiment includes a housing 1, an electric heating module 2, an electric storage module 3, a charging and discharging module 4, and a controller 5, wherein the electric heating module 2, the electric storage module 3, the charging and discharging module 4, and the controller 5 are installed in the housing 1, the housing 1 is provided with a water inlet pipe 101 and a water outlet pipe 102, the water inlet pipe 101 is connected with an external water supply source (for example, a tap water pipe) for introducing cold water, and the water outlet pipe 102 is used for outputting hot water. In the actual use process, the charge and discharge module 4 can charge and discharge the power storage module 3, and supply the electric energy released by the power storage module 3 to the electric heating module 2 for heating, the water delivered by the external water supply source to the electric heating module 2 is rapidly heated by the electric heating module 2 to achieve the purpose of instant heating type water supply, and in a normal case, a temperature sensor for detecting temperature and a flow sensor for detecting water flow are configured on the water heater, and the controller 5 controls the operation of the charge and discharge module 4 according to the user set parameters and signals detected by the relevant sensors. The basic functions of the above modules are explained as follows: the electric heating module 2 generally comprises a heating container and an electric heating part, the heating container is provided with a water inlet and a water outlet, water conveyed by a water supply source enters the heating container from the water inlet through a water inlet pipe 101, the electric heating part obtains electric energy to heat water flowing in the heating container, heated hot water is output from the water outlet of the heating container and conveyed to the outside through a water outlet pipe 102, and the electric heating part can adopt electric heating pipes, electric heating films and other electric heating devices; the electric storage module 3 stores electric energy by using a plurality of storage batteries, and the storage batteries can be of the existing common battery types, such as lithium batteries or nickel-cadmium batteries, and the embodiment does not limit the specific form of the storage batteries; the charging and discharging module 4 generally has a battery charging unit and a battery discharging unit, the battery charging unit is connected to the commercial power to charge the storage battery according to the requirement, the battery discharging unit is connected to the electric heating component, the electric energy released by the storage battery is applied to the electric heating component through the battery discharging unit to supply power to the electric heating component, the battery charging unit and the battery discharging unit can adopt the conventional battery charging circuit and battery discharging circuit form, and the limitation is not made herein; the controller 5 is used as a main control component and can control the operation of the electric water heater according to a command mode set by a user, the controller 5 generally comprises a circuit board and a control chip arranged on the circuit board, since the battery is used to supply power, the controller 5 may be further configured with a Battery Management System (BMS), which is used to monitor the battery, for example, accurately estimate the State of Charge (SOC) of the power battery, namely the residual electric quantity of the battery, collects the parameters of voltage, temperature, current and the like of each storage battery in real time in the charging and discharging process, prevents the overcharge or overdischarge phenomenon, and the single storage battery is charged in a balanced manner so as to ensure that each storage battery in the storage module achieves a balanced and consistent state, in addition, the controller 5 may also be configured with a display screen or a display touch screen for a user to check the operation state of the electric water heater.
The electric water heater according to the present embodiment has the following improvements, which are described in detail with reference to the accompanying drawings.
Firstly, in order to meet the requirement of battery heat dissipation, the use reliability and safety of the battery are improved. As shown in fig. 1 to 7, the power storage module 3 includes: a plurality of storage batteries 31 and a heat dissipation frame 32, wherein the heat dissipation frame 32 is used for installing the storage batteries 31 and dissipating heat released by the storage batteries 31; the battery 31 is thermally conductively connected to the heat sink 32. Specifically, the heat dissipation frame 32 is used for installing and fixing a plurality of storage batteries 31 on the one hand to make things convenient for the equipment of later stage unification, and on the other hand the heat dissipation frame 32 has the function of giving off storage battery 31 release heat, and the heat dissipation frame 32 can adopt the heat conduction material to make, like metals such as aluminium or copper that heat conductivility is good.
And in order to improve the heat transfer efficiency between battery 31 and the heat dissipation frame 32, battery 31 passes through the sticky subsides of heat conduction glue on heat dissipation frame 32, it is concrete, when assembling battery 31 on heat dissipation frame 32, then utilize heat conduction glue to bond battery 31 on heat dissipation frame 32, on the one hand, heat conduction glue and in the factory assembly process, utilize heat conduction glue can convenient and fast bond battery 31 and assemble on heat dissipation frame 32, in order to improve the packaging efficiency, on the other hand heat conduction glue can play the effect of quick heat conduction, the heat that battery 31 produced passes through the quick transmission of heat conduction glue to heat dissipation frame 32, in order to improve battery 31's heat transfer efficiency, like this, alright in order to utilize the heat that the quick absorption battery 31 of efficient heat dissipation frame 32 produced in order to realize the heat dissipation.
In order to increase the contact area, the storage battery 31 is of a flat structure, the back of the storage battery 31 is attached to the heat dissipation frame 32 through heat conducting glue, the storage battery 31 is of a cuboid structure, and the size of the storage battery 31 in the thickness direction is the minimum. Preferably, in order to mount more batteries 31 by fully utilizing the space on the front and back sides of the heat dissipation frame 32, the batteries 31 may be attached to the front and back sides of the heat dissipation frame 32, respectively, so as to increase the number of the batteries 31 disposed in the entire device and effectively increase the output.
Preferably, in order to more reliably mount the storage battery 31, the heat dissipation frame 32 includes: the main frame body 321 is provided with mounting grooves 3211 on the main frame body 321, and the storage battery 31 is mounted in the corresponding mounting grooves 3211 through heat-conducting glue. Specifically, the main frame 321 is made of a heat conductive material (e.g., aluminum or copper) to ensure that the main frame 321 has good heat conduction and heat dissipation capabilities, the installation grooves 3211 formed on the main frame 321 can independently install the single storage battery 31, and the storage battery 31 can be limited by the bottom and two sides of the installation groove 3211 in the installation groove 3211 to improve the assembly reliability. Therefore, in the later transportation and use process, on one hand, the storage batteries 31 are firmly limited in the mounting grooves 3211, so that the safety and reliability of the storage batteries 31 in the transportation process can be ensured, on the other hand, the storage batteries 31 cannot be mutually extruded and influenced, and the use safety and reliability can be improved. Wherein, still be provided with locating plate 3212 in the mounting groove 3211, locating plate 3212 is used for fixing a position the terminal surface that battery 31 disposed two electrodes, and locating plate 3212 is located and can carry on spacingly to battery 31's upper and lower and left and right sides direction between two electrodes to further improvement equipment reliability.
In order to further improve the reliability of the assembly of the battery 31 and to prevent the battery 31 from falling off during transportation, the main frame 321 is further provided with a connecting frame, and the connecting frame is fastened to the main frame 321 and abuts against the front surface of the battery 31, so that the battery 31 is sandwiched between the connecting frame and the main frame 321. Specifically, in the assembling process, after the battery 31 is bonded to the main frame 321 by the heat conducting adhesive, the battery 31 is limited in the mounting groove 3211 by the connecting frame from the outside of the battery 31, and the battery 31 can be limited in all directions by the limiting effect of the mounting groove 3211, the positioning plate 3212 and the connecting frame. And because polylith battery 31 is the array arrangement on body frame 321, then can carry out unified location installation to the battery 31 that is located same row or same row through the link, more effectual improvement whole packaging efficiency.
The structural form of the connecting frame is different according to the assembling manner of the battery 31 and the main frame 321, and specifically: under the condition that the storage battery 31 is installed on the front surface or the back surface of the main frame body 321, a plurality of first clamping interfaces are also arranged on the main frame body 321; the heat dissipation frame 32 further includes: the first connecting frame is provided with a plurality of first clamping connecting pieces; wherein, first joint connecting piece clamps in first joint interface, and battery 31 presss from both sides between body frame 321 and first link, and is concrete, to under the condition of installing battery 31 on body frame 321 a surface, after battery 31 bonds on body frame 321 through the heat-conducting glue, first joint connecting piece directly clamps in the first joint interface of body frame 321 to accomplish the equipment of first link, battery 31 just presss from both sides between first link and body frame 321, thereby can guarantee that battery 31 can not break away from out from installation recess 3211.
Similarly, when the main frame 321 has the batteries 31 on both the front and back sides, the main frame 321 is further provided with a plurality of through holes 3210; the heat dissipation frame 32 includes: a second connecting frame 322, wherein a plurality of second card interfaces (not marked) are arranged on the second connecting frame 322; the third connecting frame 323 is provided with a plurality of second clamping connecting pieces 3231; the main frame 321 is located between the second connecting frame 322 and the third connecting frame 323, the second clamping connector 3231 passes through the corresponding through hole 3210 and is clamped in the second clamping interface, a part of the storage battery 31 is clamped between the main frame 321 and the second connecting frame 322, and the rest of the storage battery 31 is clamped between the main frame 321 and the third connecting frame 323. Specifically, after the battery 31 is correspondingly attached to the front and the back of the main frame 321 through the heat-conducting adhesive, the second clamping connector 3231 penetrates through the through hole 3210 from one side of the main frame 321 and is clamped into the second clamping interface, and at this time, the second connecting frame 322 and the third connecting frame 323 are both tightly attached to the front of the battery 31, so that the battery 31 is fastened.
In the first and second snap connectors 3231 described above, in order to realize the snap function, taking the second snap connector 3231 as an example, a claw may be formed at the snap end of the second snap connector 3231, and the claw is snapped into the second snap interface to realize the snap connection. Or, the second card connecting member 3231 is integrally a plate-shaped structure, the free end of the plate-shaped structure is provided with a raised elastic card 3232, the elastic card 3232 passes through the second card interface and is clamped at the edge of the second card interface, specifically, the elastic card 3232 is formed at the free end of the second card connecting member 3231 directly by cutting and bending, and the free end of the second card connecting member 3231 can be formed at two sides of the second card connecting member 3232, and the raising direction of the elastic card 3232 at two sides is back to back, so that after the free end of the second card connecting member 3231 is inserted into the second card interface, the elastic card 3232 is compressed into the second card interface first, and then the elastic card 3232 extends out of the second card interface and is elastically restored, and the elastic card 3232 is clamped at the edge of the second card interface.
Further, in order to more efficiently dissipate heat from the battery 31, the power storage module 3 further includes a heat collecting assembly for collecting heat released from the battery 31 by transferring heat through the heat dissipating frame 32. Specifically, the heat that battery 31 charge-discharge in-process produced gives off heat dissipation frame 32 for, and the part heat that heat dissipation frame 32 conducted gives off naturally, and the surplus part heat is then absorbed by the heat collection subassembly, and the heat collection subassembly adopts the endothermic mode of initiative, and high efficiency absorbs the heat more. In order to sufficiently heat water using the heat generated from the battery 31, the heat collecting unit includes: and the cooling water pipe 33 is attached to the main frame body 321 and connected with the water inlet. Specifically, in the process of starting the electric water heater to generate hot water, cold water input by an external water supply source enters the cooling water pipe 33 through the water inlet pipe 101, the temperature of the cold water flowing through the cooling water pipe 33 is low, the main frame body 321 is heated by heat generated when the storage battery 31 discharges, the heat transfer efficiency between the cold water and the main frame body 321 can be accelerated by utilizing high temperature difference, so that the heat is absorbed quickly, meanwhile, the cold water in the cooling water pipe 33 enters the electric heating module 2 after absorbing the heat, and the cold water is heated by the heat released by the storage battery 31, so that the electricity consumption of the electric heating module 2 can be reduced, the energy consumption is reduced, and the output rate and the output quantity of the hot water are improved; the heat that the in-process of discharging produced is used for preheating the temperature of inlet tube, prevents that the battery temperature from too high, has prolonged battery life, promotes the safety in utilization level of battery, water heater simultaneously, has avoided the waste of the energy of battery, has realized the multistage utilization of energy, improves the water heater efficiency. The cooling water pipe 33 is arranged on the main frame body 321 in a reciprocating bending manner, and the whole body is of a serpentine coil structure, so that the thermal contact area between the cooling water pipe and the main frame body 321 is increased, and the heat dissipation efficiency is accelerated.
In order to conveniently mount the cooling water pipes 33, pipe grooves 3213 which are matched with the cooling water pipes 33 in the extending direction can be formed in the front or back of the main frame body 321, and the cooling water pipes 33 are located in the pipe grooves 3213, so that the contact area between the cooling water pipes 33 and the main frame body 321 is increased to improve the heat transfer efficiency, and meanwhile, the cooling water pipes 33 are located in the pipe grooves 3213 to avoid the extra increase of the overall thickness of the power storage module 3, so as to ensure the light and thin design. Or, a sandwich structure may be formed in the main frame body 321, the cooling water pipes 33 are located in the sandwich structure, the cooling water pipes 33 can uniformly absorb heat released by the storage batteries 31 on both sides of the main frame body 321 in the sandwich structure, and the heat collecting assembly may further include a phase change heat storage material, the phase change heat storage material is filled in the sandwich structure, and the phase change heat storage material can effectively fill the whole sandwich structure to improve the heat dissipation efficiency to the maximum extent. In addition, during the charging process of the electric storage module 3, the heat released by the storage battery 31 can be collected by the phase change heat storage material, so that the water in the cooling water pipe 33 can be preheated by the heat released by the phase change heat storage material in the starting stage of the electric water heater, so as to achieve the effect of rapidly outputting hot water. The heat collecting assembly can collect heat generated by the storage battery 31 in charging and discharging and balanced states, so that the heat of the battery is prevented from being too high, the service life of the battery is prolonged, and the use safety level of the battery and an electric water heater is improved; in addition, the storage battery 31 is used for storing electric energy, the mains supply power failure can be realized when the storage battery 31 discharges, the use safety is effectively improved, the storage battery 31 can meet the requirement of high-power heating, heat preservation is not needed, meanwhile, energy is changed from energy consumption to energy storage through the phase change material, the energy is utilized in multiple stages, the energy waste is reduced, and heating supplement and waiting are not needed when the storage battery is used again.
And secondly, in order to meet the water-electricity separation, the use reliability and safety of the battery are improved. As shown in fig. 1 to 3, a first mounting cavity 100 and a second mounting cavity 200 are formed in the housing 1; wherein the electric heating module 2 is disposed in the first mounting cavity 100, and the charge and discharge module 4 and the power storage module 3 are disposed in the second mounting cavity 200. Specifically, the electric heating module 2 is used for independently heating water and is placed in the first installation cavity 100, the charging and discharging module 4 and the electric storage module 3 are installed in the second installation cavity 200 to be separated from the electric heating module 2, in the using process, even if the electric heating module 2 heats water and water leaks, the water leaking from the electric heating module 2 only flows into the first installation cavity 100, the charging and discharging module 4 and the electric storage module 3 in the second installation cavity 200 cannot be affected, and the situation that the charging and discharging module 4 or the electric storage module 3 is soaked by water and short circuits occur is avoided.
In order to form two isolated installation cavities in the housing 1, a partition plate 11 may be disposed in the housing 1, the partition plate 11 divides the interior of the housing 1 into a first installation cavity 100 and a second installation cavity 200, specifically, the partition plate 11 is installed in the housing 1 to divide the interior space of the housing 1 into two parts and form the first installation cavity 100 and the second installation cavity 200, water and electricity isolation may be achieved by using the partition plate 11, and when water leaks from the electric heating module 2, water may be blocked by the partition plate 11 to avoid entering the second installation cavity 200. Meanwhile, under the condition of water and electricity isolation, in order to supply power to the electric heating module 2, a wiring hole (not marked) is formed in the partition plate 11, the electric heating module 2 is connected with the charging and discharging module 4 through a power supply cable (not shown), the power supply cable penetrates through the wiring hole, and structures such as a sealing ring and the like can be configured in the wiring hole to further effectively seal a gap between the power supply cable and the wiring hole, so that the sealing performance is further improved. In addition, a heat insulation layer can be further configured on the partition board 11, so that in the power-on working process of the electric heating module 2, heat released to the outside by the electric heating module 2 can be isolated by the partition board 11, and the influence on the charge and discharge module 4 and the power storage module 3 caused by the heat of the electric heating module 2 transferred to the second mounting cavity 200 is avoided.
In the case where the cooling water pipe 33 is used to dissipate heat from the power storage module 3, a mounting hole (not shown) is provided in the partition plate 11, and the cooling water pipe 33 is inserted into the mounting hole, and similarly, a seal ring or the like may be disposed in the mounting hole to further effectively seal the gap between the cooling water pipe 33 and the mounting hole. The connection part of the cooling water pipe 33 and the water inlet pipe 101 is located in the first installation cavity 100, similarly, the connection part of the cooling water pipe 33 and the electric heating module 2 is also located in the first installation cavity 100, and the part of the cooling water pipe 33 located in the second installation cavity 200 is a complete pipe body, so that the influence of water leakage at the connection part of the cooling water pipe 33 on the charge and discharge module 4 and the electric storage module 3 in the second installation cavity 200 is avoided.
Thirdly, in order to reduce the fluctuation range of the water temperature of the output hot water in the process of heating the water by the electric heating module 2. As shown in fig. 8 to 10, the electric heating module 2 includes: heating container 21 and electric heating component, and electric heating component can adopt electric heating film 22, and heating container 21 includes: the water-saving device comprises a base 211, an inner pipe 212, an outer pipe 213 and a plug 214, wherein a water inlet 2111 and a water outlet 2112 are arranged on the base 211; the inner tube 212 is arranged on the base 211, and a nozzle of the inner tube 212 is communicated with the water inlet 2111; the outer tube 213 is sleeved outside the inner tube 212 and is arranged on the base 211, and a nozzle of the outer tube 213 is communicated with the water outlet 2112; the plug 214 seals and plugs the other nozzle of the outer tube 213; a plurality of electrically heated films 22 may be arranged in the axial direction outside the outer tube 213. Specifically, in the actual use process, water enters the outer tube 213 through the water inlet 2111 of the base 211, and during the water flowing in the outer tube 213, the electric heating film 22 heats the water outside the outer tube 213, the water flows along the outer tube 213 to form hot water and enters the inner tube 212, and the water flowing through the inner tube 212 is wrapped by the water flowing in the outer tube 213, so that the heat emitted by the water flowing through the inner tube 212 is absorbed by the water flowing in the outer tube 213, thereby effectively reducing the heat loss and improving the heating efficiency. In addition, the inner pipe 212 and the outer pipe 213 are installed through the base 211, a water flow interlayer formed between the inner pipe 212 and the outer pipe 213 forms a water inlet channel, the inner pipe 212 forms a water outlet channel, water flowing in the water outlet channel is wrapped by water flowing in the water inlet channel, and the flowing process of the water in the inner pipe 212 and the water in the outer pipe 213 exchange heat to a certain extent, so that the thermal deviation of the upstream water and the downstream water is reduced. And, adopt inside and outside sleeve pipe structure, avoid setting up a business turn over water pipe alone, save space, and the inner tube outer wall is the intermediate layer space, and the heat loss that flows through 212 inner tube's water dissipation is utilized, heats the water that flows through inner tube 212 and outer tube 213 intermediate layer, has improved the thermal efficiency, and wherein, the water of inner tube 212 output is not directly heated by electric heating film 22, can effectually reduce the fluctuation of output temperature. The heating power can be adjusted by adjusting the discharge current of the power storage module 3 or adjusting the number of the used electric heating films 22, so that the temperature of the discharged water can be quickly raised to the temperature set by the user.
Preferably, a support plate 215 is further disposed between the inner tube 212 and the outer tube 213, and the inner tube 212 can be stably installed in the outer tube 213 by using the support plate 215, so as to ensure that the thickness of the water flow interlayer formed between the inner tube 212 and the outer tube 213 is uniform. The supporting plate 215 may be a ring-shaped structure, the supporting plate 215 is sleeved outside the inner tube 212, the outer edge of the supporting plate 215 abuts against the inner tube wall of the outer tube 213, and a plurality of supporting plates 215 may be arranged along the axial direction of the inner tube 212 to effectively ensure that the distance between the inner tube 212 and the outer tube 213 is constant. Alternatively, the support plate 215 is a spiral structure as a whole, the support plate 215 is spirally arranged around the outside of the inner tube 212, and the outer edge of the support plate 215 abuts against the inner tube wall of the outer tube 213.
In addition, in order to reduce the occurrence of hot and cold water stratification, the support plate 215 disturbs the water flowing in the outer pipe 213, thereby breaking the boundary layer of water flow, rapidly promoting the mixing of hot and cold water, and further reducing the fluctuation range of the outlet water temperature. Specifically, for the supporting plate 215 having a ring structure, a plurality of water holes (not labeled) are provided on the supporting plate 215, the turbulence of the water flowing in the outer pipe 213 passing through the water gap serves the purpose of mixing cold and hot water, and the supporting plate 215 may be obliquely arranged with respect to the axis of the inner pipe 212 to further guide the water flow by the supporting plate 215 to cause the turbulence. And to helical structure's backup pad 215, its self alright play the purpose that the rotatory vortex that reaches of guide rivers, and backup pad 215's surface is provided with hollow out construction, can more effectual increase vortex effect. Under the turbulent flow effect of the supporting plate 215, the phenomenon of film boiling of the water in the outer tube 213 due to too high heating temperature can be further reduced or avoided. In order to utilize the heat generated by the electric heating film 22 to the maximum and reduce energy consumption, the heat preservation layer is further arranged outside the heating container 21, and the heat preservation layer is used for wrapping the heating container 21 integrally outside, so that the heat loss generated by the electric heating film 22 is reduced, the heat energy utilization rate is improved, and the energy consumption is reduced. Meanwhile, a gap is formed between the pipe orifice of the inner pipe 212 opposite to the choke plug 214 and the choke plug 214, so that the water resistance phenomenon caused by the change of the flow direction of water flow can be effectively reduced.
Based on the above technical solution, there are various connection modes for the battery 31, and depending on the supply voltage output by the power storage module 3, the battery 31 may be connected to corresponding circuits, for example: the power storage module 3 can output high voltage of 150V-222V to match with the commercial power, or the power storage module 3 can output low voltage of 120V, preferably 36V-48V, lower than the human body direct current safety voltage. The following description is made with specific reference to the accompanying drawings.
As shown in fig. 2, in the low-voltage power supply mode, the power storage module 3 is used for storing electric energy and outputting a low-voltage of 36V-48V; the electric storage module 3 can be divided into a plurality of electric storage modules, each electric storage module comprises a plurality of storage batteries 31 arranged in parallel to satisfy the requirement that the electric storage module 3 outputs larger current, the plurality of electric storage modules are arranged in series to realize the output of 36V-48V voltage and finally meet the requirement of high-power heating water, the charging and discharging module 4 controls the output current of the electric storage module 3 to uniformly control the power-on heating of each electric heating component in the electric heating module, a battery discharging unit of the charging and discharging module 4 can be configured with a plurality of electric control switches, each electric control switch is used for connecting the corresponding electric heating component and controlling the power-on and power-off of the electric heating component, in the actual heating process, on one hand, the heating power can be adjusted by controlling the output current of the electric storage module 3, on the other hand, the power-on and power-off of the corresponding, the electric control switch can adopt a relay or an insulated gate bipolar transistor.
Similarly, the mode of supplying power to the low voltage may also adopt a mode of connecting the storage batteries 31 in series and then in parallel, as shown in fig. 11, each storage module includes a plurality of storage batteries 31 connected in series, so that the storage module can output a voltage of 36V to 48V, and the plurality of storage modules are connected in parallel to satisfy the requirement that the storage module 3 outputs a large current to satisfy the high power, and each storage module independently supplies power to the corresponding electric heating component, and correspondingly, the charging and discharging module 4 includes: and a plurality of charge and discharge submodules 41, where the charge and discharge submodules 41 are configured to control the corresponding power storage modules to be charged and discharged, and the corresponding charge units and discharge units are also configured in the charge and discharge submodules, and the representation entities of the charge and discharge submodules are not limited herein. In addition, for the way that the storage batteries 31 are connected in series and then connected in parallel, in order to simplify the connection process, as shown in fig. 7, two sides of the main frame 321 are respectively provided with a plurality of charge and discharge sub-modules 41, the plurality of charge and discharge sub-modules positioned on the same side of the main frame 321 are sequentially arranged along the longitudinal direction, and the middle part of the main frame 321 is provided with a plurality of threading holes 3214 along the longitudinal direction; for a plurality of storage batteries 31 in the same storage battery module, the storage batteries 31 are located on the same side of the threading holes 3214 and are distributed on the front side and the back side of the main frame 321, the storage batteries 31 located on the front side of the main frame 321 are sequentially connected in series, the storage batteries 31 located on the back side of the main frame 321 are sequentially connected in series, the storage battery 31 located on the front side of the main frame 321 close to the threading hole 3214 passes through the threading hole 3214 through a conducting wire and is connected in series with the storage battery 31 located on the back side of the main frame 321 close to the threading hole 3214, and the two storage batteries 31 located on the front side and the back side of the.
As shown in fig. 12, in the high-voltage power supply mode, the power storage module 3 outputs a high-voltage power of 150V to 222V, and for this purpose, the power storage module 3 may be divided into a plurality of power storage modules, each of which includes a plurality of storage batteries 31 arranged in parallel, and the plurality of power storage modules are arranged in series to satisfy the high-voltage power of 150V to 222V, so that the power storage modules employ a plurality of storage batteries 31 arranged in parallel to obtain a sufficiently large output current, and the plurality of power storage modules are arranged in series to obtain a high voltage; preferably, in order to more effectively improve the overall heating power, the electric water heater may further be configured with an external power supply discharging module 6, the external power supply discharging module 6 is configured to connect an external power supply and supply power to the remaining electric heating components, specifically, in a conventional heating mode, the electric energy supplied by the electric storage module 3 can meet the heating requirement of the electric heating module 2, when more power is required to output more hot water, the external power supply discharging module 6 supplies power to increase the heating power in an auxiliary manner, the external power supply discharging module 6 is connected with the mains supply and converts the mains supply into a voltage value identical to the voltage output by the electric storage module 3, so as to supply power to the electric heating module 2 together, and an expression entity of the external power supply discharging module 6 may refer to a discharging control device of a conventional mains supply water heater, without limitation. Preferably, the electric heating module 2 may be configured with two heating containers 21, and each heating container is correspondingly configured with an electric heating component, wherein the electric heating component on one heating container 21 is powered by the power storage module 3, and the electric heating component on the other heating container 21 is powered by the external power discharge module 6; alternatively, all of the electric heating parts in one heating container 21 are supplied with power through the power storage module 3, some of the electric heating parts in the other heating container 21 are supplied with power through the power storage module 3, and the rest of the electric heating parts are supplied with power through the external power supply discharge module 6. And under the condition that the electric heating component on the heating container 21 adopts high-voltage electricity supply, in order to improve the safety and reliability, a fixed seat (not shown) is arranged in the shell 1, the heating container 21 is installed on the fixed seat, a hoop is connected to the fixed seat through a bolt, the heating container 21 is clamped between the hoop and the fixed seat, an insulating partition plate is arranged between the heating container 21 and the hoop and the fixed seat, and the insulating partition plate is utilized to realize the insulating installation of the electric heating module 2 on the shell 1. In the case of the power storage module 3 in fig. 12, a voltage of 36V to 48V may be output, and in this case, the high voltage and the low voltage are supplied in a mixed manner, in which case, all the electric heating parts on one of the heating containers 21 are supplied with power through the power storage module 3, and all the electric heating parts on the other heating container 21 are supplied with power through the external power discharge module 6.
In the case of using two heating containers 21, as shown in fig. 13, the two heating containers 21 are arranged side by side, the two heating containers 21 are connected by a connecting water pipe 23, a wiring pipe 24 is arranged between the two heating containers 21, and a power supply cable passes through the wiring pipe 24 and is electrically connected with the electric heating part on the corresponding heating container 21; the power storage module 3 supplies power to the corresponding electric heating part through the corresponding power supply cable, and the external power supply discharge module 6 supplies power to the corresponding electric heating part through the corresponding power supply cable. And the both ends of connecting water pipe 23 form arc elbow structure, and connecting water pipe 23 extends along the outside of walking line pipe 24 and distributes, and it can the protection power supply cable to walk line pipe 24 to reduce the heat influence that the power supply cable released by the electrical heating part, simultaneously, utilize the region between two heating container 21 to install walking line pipe 24 and connecting water pipe 23 with the effectual occupation space that reduces electric heating module 2.
Based on above-mentioned technical scheme, this embodiment electric water heater still includes for accurate control leaving water temperature: the flow sensor is used for detecting the water inlet flow or the water outlet flow of the electric heating module 2; a first temperature sensor for detecting the water inlet temperature of the water inlet 2111; the second temperature sensor is used for detecting the outlet water temperature of the water outlet 2112; the controller 5 is used for controlling the operation of the charging and discharging module 4 according to the parameters set by the user and the signals detected by the flow sensor, the first temperature sensor and the second temperature sensor. Specifically, the water output of the electric water heater can be detected by using a flow sensor, the temperature of the entering cold water is detected by using a first temperature sensor, the temperature of the output hot water is detected by using a second temperature sensor, and the controller accurately controls the action of the charge-discharge module 4 according to the required water output temperature value set by a user and by using the detected water flow and water temperature so as to adjust the power supply power of the power storage module 3, wherein the specific control method comprises the following steps: after the water outlet temperature is set, after the flow sensor detects the water flow, the heat required by heating water is calculated according to the water inlet temperature detected by the first temperature sensor and the water flow detected by the flow sensor, so that the electric power storage module 3 is controlled to supply power to the electric heating module 2 for heating water. Specifically, at the temperature of intaking, rivers and the required condition of leaving water temperature information to learn, according to the temperature difference value and the water flow value between temperature of intaking and the user setting temperature, alright calculate required heat, and convert required heating power according to required heat, discharge with control power storage module 3, and controller 5 comes further adjustment charge-discharge module 4 according to the play water temperature value that second temperature sensor detected again, so that power storage module more reasonable discharges and heats, reach the difference in temperature of leaving water temperature at 1 ℃ within range, thereby effectual improvement user experience nature. According to the temperature signal fed back by the second temperature sensor, if the temperature value detected by the second temperature sensor is smaller than the set outlet water temperature, the discharging power of the electric power storage module is increased; and if the temperature value detected by the second temperature sensor is greater than the set outlet water temperature, reducing the discharging power of the power storage module. Preferably, when the external power supply discharging module 6 is used for auxiliary power supply, and the storage battery is at the maximum discharging power, if the temperature value detected by the second temperature sensor is less than the set outlet water temperature, the external power supply discharging module is started to assist in supplying power to the electric heating module for heating water.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (8)
1. An instant electric water heater, comprising:
the device comprises a shell, a first mounting cavity and a second mounting cavity are formed in the shell;
the electric heating module is provided with a water inlet and a water outlet and is used for heating cold water input from the water inlet and outputting hot water from the water outlet;
the storage batteries are used for storing electric energy;
the charging and discharging module is used for controlling the storage battery to charge and controlling the storage battery to discharge so as to supply power to the electric heating module;
the electric heating module is arranged in the first mounting cavity, and the charging and discharging module and the storage battery are arranged in the second mounting cavity.
2. The tankless electric water heater of claim 1, further characterized in that a partition is disposed within said housing, said partition dividing the interior of said housing into said first mounting cavity and said second mounting cavity.
3. The instant heating type electric water heater according to claim 2, wherein a wiring hole is provided on the partition plate, the electric heating module is connected to the charging and discharging module through a power supply cable, and the power supply cable passes through the wiring hole.
4. The instant heating type electric water heater of claim 2, characterized in that a water inlet pipe and a water outlet pipe are arranged at the bottom of the first mounting cavity, the water inlet pipe is connected with the water inlet, and the water outlet pipe is connected with the water outlet.
5. The tankless electric water heater of claim 4, further comprising:
the cooling water pipe is positioned in the second mounting cavity and is in heat transfer connection with the storage battery;
the water inlet pipe is connected with the water inlet through the cooling water pipe;
the partition plate is provided with a mounting hole, and the cooling water pipe penetrates through the mounting hole.
6. The tankless electric water heater of claim 5, further comprising:
the heat dissipation frame is used for installing the storage battery and is used for dissipating heat released by the storage battery, the heat dissipation frame is located in the second installation cavity, and the cooling water pipe is attached to the heat dissipation frame.
7. The tankless electric water heater of claim 1, further provided with a water leak detector at the bottom of said first mounting cavity.
8. The tankless electric water heater of any of claims 1 to 7, further comprising:
the flow sensor is used for detecting the water inlet flow or the water outlet flow of the electric heating module;
the first temperature sensor is used for detecting the water inlet temperature of the water inlet;
the second temperature sensor is used for detecting the outlet water temperature of the water outlet;
the controller is used for controlling the charging and discharging module to operate according to set parameters and signals detected by the flow sensor, the first temperature sensor and the second temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920433148.2U CN210624882U (en) | 2019-04-02 | 2019-04-02 | Instant electric water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920433148.2U CN210624882U (en) | 2019-04-02 | 2019-04-02 | Instant electric water heater |
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| CN210624882U true CN210624882U (en) | 2020-05-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765623A (en) * | 2019-04-02 | 2020-10-13 | 青岛经济技术开发区海尔热水器有限公司 | Instant electric water heater and control method thereof |
| CN112146267A (en) * | 2020-08-28 | 2020-12-29 | 青岛经济技术开发区海尔热水器有限公司 | Instant electric water heater |
-
2019
- 2019-04-02 CN CN201920433148.2U patent/CN210624882U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765623A (en) * | 2019-04-02 | 2020-10-13 | 青岛经济技术开发区海尔热水器有限公司 | Instant electric water heater and control method thereof |
| CN112146267A (en) * | 2020-08-28 | 2020-12-29 | 青岛经济技术开发区海尔热水器有限公司 | Instant electric water heater |
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