CN209801825U - Electric water heater power protection device and electric water heater - Google Patents
Electric water heater power protection device and electric water heater Download PDFInfo
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- CN209801825U CN209801825U CN201920146123.4U CN201920146123U CN209801825U CN 209801825 U CN209801825 U CN 209801825U CN 201920146123 U CN201920146123 U CN 201920146123U CN 209801825 U CN209801825 U CN 209801825U
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Abstract
The embodiment of the utility model discloses electric water heater power protection device and electric water heater relates to domestic appliance power consumption safety technical field. The device comprises a power failure monitoring component, a circuit control component and an electric heater, wherein the power failure monitoring component monitors circuit failure; the circuit control component controls the power supply of the electric water heater to be switched on or off; the electric heater heats cold water in the electric water heater. The power failure monitoring component comprises a leakage protector and a power monitor which are sequentially connected in series, and the power monitor acquires circuit failure information; the circuit control assembly comprises a control chip and a control panel relay, wherein the control chip receives circuit fault information and compares the circuit fault information with normal circuit information to obtain a comparison result; and the control panel relay executes closing or opening action according to the comparison result. The circuit integration degree is high, and simple structure is favorable to equipment miniaturization, is favorable to maintaining the circuit trouble. The problems of large-scale equipment and difficult fault maintenance are solved.
Description
Technical Field
The embodiment of the utility model provides a relate to domestic appliance power consumption safety technical field, concretely relates to electric water heater power protection device and electric water heater.
Background
Electric water heaters are widely used as household appliances for quickly obtaining hot water, and in some areas, municipal power grids are not particularly stable, and abnormal power supply states such as undervoltage, shortage, overpressure, phase sequence error and the like occasionally exist. The electric water heater works under the abnormal power supply state, which not only can impact the fragile municipal power grid, but also can accelerate the service life attenuation of the core heating part, and even directly damage equipment, thereby causing safety accidents.
In the prior art, an undervoltage fault protection circuit, an overvoltage fault protection circuit, a fault protection circuit and a phase sequence fault protection circuit are respectively arranged for circuit protection of an electric water heater aiming at different fault states, so that the running state of the electric water heater is protected under different circuit fault states, and if different fault states need to be protected simultaneously, redundant circuit arrangement is needed, so that the miniaturization and the reduction of equipment are not facilitated, and fault maintenance is also not facilitated.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides an electric water heater power protection device and electric water heater to solve among the prior art because the electric water heater circuit protection circuit is long enough miscellaneous and the equipment is upsized, the problem of trouble maintenance difficulty that leads to.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
In a first aspect of an embodiment of the present invention, there is provided a power protection device for an electric water heater, comprising a power failure monitoring component, a circuit control component and an electric heater, wherein the power failure monitoring component is connected to a mains power grid for monitoring circuit failure; the circuit control assembly is connected with the power failure monitoring assembly and is used for controlling the power supply of the electric water heater to be switched on or switched off; the electric heater is connected with the circuit control assembly and is used for heating cold water in the electric water heater;
The power failure monitoring assembly comprises a leakage protector and a power monitor which are sequentially connected in series, and the power monitor acquires the failure information of the mains supply power grid circuit;
The circuit control assembly comprises a control chip and a control panel relay, wherein the control chip is connected with the power supply monitor and used for receiving the fault information of the mains supply power grid circuit and comparing the fault information with the normal circuit information to obtain a comparison result; and the control panel relay is connected with the control chip and used for executing closing or opening actions according to the comparison result.
The utility model discloses an in an embodiment, power failure monitoring subassembly still includes a plurality of transformers for the appearance, the transformer for the appearance cup joint in earth-leakage protector with on power monitor's the connecting wire for detect commercial power electric wire netting circuit current or voltage information.
In yet another embodiment of the present invention, the circuit control assembly further comprises a plurality of circuit breakers, the circuit breakers are connected in series to the control panel relay for manual control of the on/off state of the electric heater.
In yet another embodiment of the present invention, the circuit control assembly further comprises a plurality of heater ac contactors, the heater ac contactors are connected in series to the circuit breaker and are in a normally closed state.
The utility model discloses an in still another embodiment, still include water pump motor circuit assembly, water pump motor circuit assembly includes water pump circuit breaker and water pump ac contactor, water pump circuit breaker series connection the control panel relay for opening of control electric water heater water pump stops, water pump ac contactor series connection the water pump circuit breaker, and be in normally closed state.
In a second aspect of an embodiment of the present invention, there is provided an electric water heater comprising the electric water heater power protection device as described above.
In one embodiment of the present invention, the electric heater of the electric water heater is a ceramic heater.
According to the utility model discloses an embodiment, the utility model discloses an embodiment provides an electric water heater, has following advantage:
Firstly, the power supply monitor is used for comprehensively monitoring the circuit fault information of undervoltage, overvoltage, missing items, phase sequence errors and the like of a mains supply power grid, and timely cutting off the circuit to prevent the electric water heater from working under an abnormal circuit state. Meanwhile, in order to further cut off the circuit, the control chip acquires circuit fault information and controls a switch button on the control panel relay to be in a disconnected state in an abnormal state, so that the electric water heater is prevented from being started by mistake in the abnormal state. The power supply protection device of the electric water heater completes real-time online monitoring of circuit fault information such as undervoltage, overpressure, missing items, phase sequence errors and the like through the power supply monitor, simultaneously realizes secondary cut-off of a circuit of the electric water heater through the circuit control assembly, has high circuit integration degree, simple structure, safety and reliability, is beneficial to miniaturization and reduction of the electric water heater, and is beneficial to maintenance of circuit faults of the electric water heater.
And secondly, the current or voltage information of the circuit of the commercial power grid is detected through the instrument transformer, when the power supply monitor acquires the circuit fault information, the current and voltage state in the circuit is observed more visually, the fault information is convenient to judge, and meanwhile, data reference is provided for the inspection and maintenance of the internal circuit of the electric water heater.
Thirdly, one electric water heater may have more than one electric heater, each electric heater is connected with one circuit breaker to manually cut off a circuit corresponding to the electric heater, and one electric water heater can adjust the number of the electric heaters in a working state according to the required hot water temperature so as to reasonably utilize energy and avoid electric energy waste; and secondly, the electric heater in a fault state is conveniently cut off, so that the electric heater is convenient to overhaul and maintain, and the electric water heater can normally work.
Fourthly, each establish ties one behind the circuit breaker heater ac contactor, electric heater normally works as, heater ac contactor is in the on-state, breaks when line fault or manual work the circuit breaker, heater ac contactor is in the off-state to further guarantee circuit safety, simultaneously, when overhauing, ensure the circuit disconnection, the maintenance safety is examined in the guarantee.
and fifthly, a water pump of the electric water heater is generally a low-power easily-damaged electric appliance, and the water pump motor circuit assembly is arranged, so that the independent protection of the water pump motor of the electric water heater is realized, the water pump motor is convenient to disassemble and replace, and the safety and reliability of the inspection and maintenance process are improved.
And sixthly, the electric water heater comprising the power supply protection device of the electric water heater has longer service life and equipment period because the circuit state is stable when the electric water heater works. Meanwhile, the power supply protection device is integrated, so that the electric water heater has the advantages of small and attractive appearance and volume, light volume and weight, convenience in transportation and installation and the like.
And seventhly, the electric heater of the electric water heater is a ceramic heating element, so that the electric water heater avoids potential safety hazards caused by dry burning due to misoperation, can realize variable frequency regulation and is beneficial to improving the heat conversion efficiency of the electric water heater.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
the structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a power protection device for an electric water heater according to an embodiment of the present invention.
In the figure: the power protection device 10 of the electric water heater, a power failure monitoring assembly 100, a leakage protector 110, a power monitor 120, an instrument transformer 130, a circuit control assembly 200, a control chip 210, a control panel relay 220, a circuit breaker 230, a heater AC contactor 240, an electric heater 300, a water pump motor circuit assembly 400, a water pump circuit breaker 410 and a water pump AC contactor 420.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
in the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Example 1:
A power protection device 10 of an electric water heater is used for protecting the working state of the electric water heater and preventing the electric water heater from working under the circuit faults of undervoltage, overvoltage, missing and phase sequence error of a mains supply power grid, so that the impact of the electric water heater on the mains supply power grid in the circuit fault state is reduced, and the accelerated attenuation of the service life of a core heating part caused by the abnormal working of the electric water heater is avoided.
The electric water heater power protection device 10 comprises a power failure monitoring component 100, a circuit control component 200 and an electric heater 300, wherein the power failure monitoring component 100 comprises a leakage protector 110 and a power monitor 120 which are sequentially connected in series, the leakage protector 110 is connected with a mains supply power grid and is used for timely cutting off connection between equipment and the mains supply power grid when the electric water heater has equipment failure and short circuit or electric leakage is caused, and impact on the mains supply power grid is avoided. The power supply monitor 120 acquires the failure information of the mains power grid circuit, including undervoltage failure information, overvoltage failure information, missing failure information and phase sequence error failure information, and timely cuts off the circuit, so that the phenomenon that the service life of a core heating part is accelerated and attenuated and even safety accidents are caused due to the fact that the electric water heater works in an abnormal circuit state is avoided. The power failure monitoring assembly 100 further includes a plurality of instrument transformers 130, and the instrument transformers 130 are sleeved on the connection wires of the leakage protector 110 and the power monitor 120, and are used for detecting the current or voltage information of the commercial power grid circuit.
The circuit control assembly 200 is connected to the power failure monitoring assembly 100, and is used for controlling the power supply of the electric water heater to be turned on or off. The circuit control component comprises a control chip 210 and a control panel relay 220, wherein the control chip 210 is connected with the power supply monitor 120 and is used for receiving the fault information of the mains supply power grid circuit and comparing the fault information with the normal circuit information to obtain a comparison result; the control panel relay 220 is connected to the control chip 210, and is configured to perform a closing or opening operation according to the comparison result. The circuit control assembly 200 further includes a plurality of circuit breakers 230 and a plurality of heater ac contactors 240, wherein the circuit breakers 230 are connected in series to the control panel relay 220, and are used for manually controlling the on/off state of the electric heater 300. The heater ac contactor 240 is connected in series with the circuit breaker 230 and is in a normally closed state.
electric water heater power protection device 10 still includes water pump motor circuit subassembly 400, water pump motor circuit subassembly 400 includes water pump circuit breaker 410 and water pump ac contactor 420, water pump circuit breaker 410 series connection control panel relay 220 for the opening of control electric water heater water pump stops, water pump ac contactor 420 series connection water pump circuit breaker 410, and be in normally closed state.
in this embodiment, the power protection device 10 of the electric water heater completes real-time online monitoring of circuit fault information such as undervoltage, overpressure, missing and phase sequence errors through the power monitor 120, and simultaneously realizes secondary circuit disconnection of the electric water heater through the circuit control component 200, so that the circuit integration degree is high, the structure is simple, safe and reliable, miniaturization and reduction of the electric water heater are facilitated, and maintenance of the circuit fault of the electric water heater is facilitated.
Example 2:
An electric water heater comprises the power protection device 10 of the electric water heater in embodiment 1, wherein the electric heater 300 of the electric water heater is a ceramic heating element.
In the embodiment, the electric water heater has longer service life and equipment period because the circuit state is stable when the electric water heater works. Meanwhile, the power supply protection device is integrated, so that the electric water heater has the advantages of small and attractive appearance and volume, light volume and weight, convenience in transportation and installation and the like. The electric heater 300 is a ceramic heating element, so that the electric water heater avoids potential safety hazards caused by dry burning due to misoperation, can realize variable frequency regulation, and is favorable for improving the heat conversion efficiency of the electric water heater.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. The power protection device (10) of the electric water heater is characterized by comprising a power failure monitoring component (100), a circuit control component (200) and an electric heater (300), wherein the power failure monitoring component (100) is connected with a mains supply power grid and is used for monitoring circuit failure; the circuit control assembly (200) is connected with the power failure monitoring assembly (100) and is used for controlling the power supply of the electric water heater to be switched on or switched off; the electric heater (300) is connected with the circuit control assembly (200) and is used for heating cold water in the electric water heater;
The power failure monitoring assembly (100) comprises a leakage protector (110) and a power monitor (120) which are sequentially connected in series, wherein the power monitor (120) acquires the circuit failure information of a mains supply power grid;
The circuit control assembly (200) comprises a control chip (210) and a control panel relay (220), wherein the control chip (210) is connected with the power supply monitor (120) and is used for receiving the fault information of the mains supply power grid circuit and comparing the fault information with the normal circuit information to obtain a comparison result; the control panel relay (220) is connected with the control chip (210) and used for executing closing or opening actions according to the comparison result.
2. The power protection device (10) of claim 1, wherein the power failure monitoring assembly (100) further comprises a plurality of instrument transformers (130), and the instrument transformers (130) are sleeved on the connecting wires of the leakage protector (110) and the power monitor (120) for detecting the current or voltage information of the mains network circuit.
3. The power protection device (10) of the electric water heater according to claim 1, wherein the circuit control assembly (200) further comprises a plurality of circuit breakers (230), the circuit breakers (230) are connected in series with the control panel relay (220) for manually controlling the on/off state of the electric heater (300).
4. the power protection device (10) of claim 3, wherein the circuit control assembly (200) further comprises a plurality of heater ac contactors (240), the heater ac contactors (240) are connected in series with the circuit breaker (230) and are in a normally closed state.
5. The power protection device (10) of claim 1, further comprising a water pump motor circuit assembly (400), wherein the water pump motor circuit assembly (400) comprises a water pump circuit breaker (410) and a water pump ac contactor (420), the water pump circuit breaker (410) is connected in series with the control panel relay (220) for controlling the on/off of the water pump of the electric water heater, and the water pump ac contactor (420) is connected in series with the water pump circuit breaker (410) and is in a normally closed state.
6. An electric water heater, characterized in that it comprises a power protection device (10) according to any one of claims 1 to 5.
7. the electric water heater according to claim 6, characterized in that the electric heater (300) is a ceramic heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146123.4U CN209801825U (en) | 2019-01-28 | 2019-01-28 | Electric water heater power protection device and electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146123.4U CN209801825U (en) | 2019-01-28 | 2019-01-28 | Electric water heater power protection device and electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209801825U true CN209801825U (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920146123.4U Active CN209801825U (en) | 2019-01-28 | 2019-01-28 | Electric water heater power protection device and electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209801825U (en) |
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2019
- 2019-01-28 CN CN201920146123.4U patent/CN209801825U/en active Active
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