CN210128516U - Power supply circuit and electric water heater - Google Patents
Power supply circuit and electric water heater Download PDFInfo
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- CN210128516U CN210128516U CN201920506375.3U CN201920506375U CN210128516U CN 210128516 U CN210128516 U CN 210128516U CN 201920506375 U CN201920506375 U CN 201920506375U CN 210128516 U CN210128516 U CN 210128516U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000005485 electric heating Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Abstract
The utility model discloses a power supply circuit and electric water heater, power supply circuit include connector and two at least plugs, the connector has two at least inputs and two outputs, and these two inputs and two outputs pass through the protection device one-to-one and are connected, the output is connected with the power supply terminal of controller respectively, and one of them input is the live wire input, is connected with the live wire end of each plug respectively, and another one input is the zero line input, is connected with the zero line end of each plug respectively, and when the electric current was greater than rated current, the disconnection of protection device the connection of input and output. The utility model discloses a power supply circuit, through setting up the connector, its one end adopts thick line footpath to be connected with the controller, and one end is through connecting many standard power cords in addition, and power plug can be set to corresponding power cord, and it is thick to the line footpath requirement of power cord, unable and power plug assorted technical problem to have solved high-power electrical apparatus.
Description
Technical Field
The utility model relates to a power supply circuit and have power supply circuit's electric water heater.
Background
The existing power line used by the electric appliance is provided with a plug, and is directly connected with the power grid through the plug and a socket fixed on a wall; some do not have the plug, need to install the terminal box at the wall originally to reform transform when the installation, install terminal strip or air switch, pass through the screw fastening to terminal strip or air switch's output with the power cord wiring end again.
Whether a power line plug is arranged on an electric appliance is determined according to the rated power of the electric appliance at present, for example, a power line which is configured when the electric appliance with the power of more than 3 kilowatts leaves a factory is not provided with the plug, because the current of the high-power electric appliance is large, the requirement on the corresponding wire diameter is thick, the standard socket can not meet the cross-sectional area of the wire, but can meet the electric appliance with the power of less than 3 kilowatts, and the electric appliance generally leaves the factory and is provided with. The power cord can not be changed after leaving the factory, and for an electric appliance without a plug, the power supply can be connected only by transforming the original junction box installed on the wall, so that the wall decoration can be damaged, and meanwhile, the great cost is brought, and the negative evaluation of the product is caused.
Disclosure of Invention
The utility model discloses a solve present high-power electrical apparatus's power and need reform transform the terminal box of former installation at the wall, load terminal row or air switch, pass through the screw fastening with the power cord wiring end to terminal row or air switch's output again, lead to taking a lot of work, taking time, technical problem that installation cost is high provides a power supply circuit, can solve above-mentioned problem.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the utility model provides a power supply circuit, includes connector and two at least plugs, the connector has two at least inputs and two outputs, and these two inputs and two outputs are connected through protection device one-to-one, the output is connected with the power supply terminal of controller respectively, and one of them input is the live wire input, is connected with the live wire end of each plug respectively, and another one input is the zero line input, is connected with the zero line end of each plug respectively, and when the electric current was greater than rated current, the protection device disconnection the connection of input and output.
Furthermore, at least one plug is a three-phase plug and is also provided with a ground wire end, and the ground wire end is connected with a ground point of the water heater.
Furthermore, the other plug is a two-phase plug.
Further, the wire diameter of the wire connected between the input end and the plug is 1.0mm2Or 1.5mm2Or 2.5mm2。
Further, the connector is a thermal fuse.
Further, the plug comprises a first plug and a second plug, and the wire diameter of a wire connected between the input end and the first plug is 1.5mm2The rated current of the first plug is 10A, and the wire diameter of a wire connected between the input end and the second plug is 2.5mm2The rated current of the second plug is 16A.
Further, the wire diameter of the wire connected between the output end and the controller is larger than the wire diameter of the wire connected between the input end and the plug.
The invention also provides an electric water heater, which comprises a shell, an inner container, an electric heating pipe arranged in the inner container, a controller arranged on the inner side of the shell, and a grounding point, wherein the electric heating pipe is connected with the controller.
Furthermore, the electric heating pipe has two or more, and the power end of the electric heating pipe is respectively connected with the controller.
Further, the total power of the electric heating pipe is not less than 3 kilowatts.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model discloses a power supply circuit, through setting up the connector, its one end adopts thick line footpath to be connected with the controller, and one end is through connecting many standard power cords in addition, and power plug can be set to corresponding power cord, and it is thicker to the line footpath requirement of power cord to have solved high-power electrical apparatus, unable and power plug assorted technical problem, has avoided need carrying out the problem of reforming transform to the former terminal box of installing at the wall when the installation to high-power electrical apparatus.
Other features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the invention, which is to be read in connection with the accompanying drawings.
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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a power circuit according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment, this embodiment provides a power circuit, as shown in fig. 1, which includes a connector 11 and at least two plugs, respectively a first plug 12 and a second plug 13, the connector 11 has at least two input ends and two output ends, wherein one input end is a live input end 111, which is connected to the live end of each plug, the other input end is a neutral input end 112, which is connected to the neutral end of each plug, and the two output ends are a first output end 121 and a second output end 122, which are connected to the two output ends in a one-to-one correspondence manner through protection devices, that is, the live input end 111 is connected to the first output end 121 through a protection device, the neutral input end 112 is connected to the second output end 122 through a protection device, and the other end of the output ends is connected to a power terminal of a controller 15 through a first wire 14, when the current is greater than the rated current, the protection device disconnects the input end and the output end, so that the controller can be disconnected from the mains supply, and the functions of protecting electric appliances and personal safety are achieved. This power supply circuit is through setting up the connector, its one end can adopt thick line footpath to be connected with the controller, one end can be through connecting many standard power cords in addition, corresponding power cord can dispose standard power plug, it is thick to the line footpath requirement of power cord to have solved high-power electrical apparatus, unable with power plug assorted technical problem, because electrical apparatus can be from taking power plug, just need not to reform transform the supply socket that the family was reserved, the problem of need reforming transform the terminal box of former installation at the wall when having avoided when installing high-power electrical apparatus, practice thrift manpower and materials, do not influence and decorate beautifully.
In order to ensure the safety of the household appliance, the household appliance generally has a grounding function, and therefore, at least one of the plugs connected to the connector is a three-phase plug, such as the first plug 12 of the present embodiment, which further has a ground terminal 123, and the ground terminal 123 is connected to the ground point 20 of the water heater.
Another plug in this embodiment is two-phase plug, when a plurality of plugs worked simultaneously, one of them plug and ground connection can, one of them adopts three-phase plug, another adopts two-phase plug, its suitability is higher, if two three-phase sockets have been reserved simultaneously, two-phase plug also can insert to three-phase socket, if a three-phase socket has been reserved, a two-phase socket, two plugs of this embodiment also can the adaptation, otherwise, if two plugs are three-phase plugs, its unable two-phase socket's of adaptation condition still needs adapter socket in addition.
The wire diameter of the wire connected between the input end and the plug in the embodiment is a standard wire diameter so as to be matched with the plug, the plug can be arranged, and the wire diameter can be 1.0mm2Or 1.5mm2Or 2.5mm2. The maximum current allowed to flow through the wires with different wire diameters is different, and may be selected according to the actual power of the electrical appliance.
Preferably, in the present embodiment, the wire diameter of the wire connected between the input terminal and the first plug 12 is 1.5mm2The rated current of the first plug 12 is 10A, and the wire diameter of the wire connected between the input end and the second plug 13 is 2.5mm2The rated current of the second plug 13 is 16A. The combination can bear the high-power current of an electric appliance and can be conveniently matched with a reserved socket.
In this embodiment, the connector is preferably a thermal fuse, and if the current in the line is overloaded, the conductive material connected between the input terminal and the output terminal will fuse, and the connection between the input terminal and the output terminal of the protector will automatically break. Of course, the implementation of the protector is not limited to the thermal fuse in this embodiment, and may also be implemented by using other protection devices capable of automatically detecting an overcurrent and automatically disconnecting the input terminal from the output terminal.
The wire connected between the input end and the plug is the second wire, because the power supply circuit of this embodiment is particularly suitable for high-power electrical apparatus, therefore, in order to be able to bear the heavy current of high-power electrical apparatus, the wire diameter requirement to the wire needs to be thick, for the second wire connected with the input end, its other one end needs the connecting plug, this embodiment is through the mode of dividing many, adopt the wire of standard fine rule footpath to connect a plurality of plugs, realize shunting, to with the output end, it need not the connecting plug, therefore, corresponding wire diameter can directly adopt the thick wire diameter that can bear high power can, that is, the wire diameter of first wire is greater than the wire diameter of second wire. For example, the wire diameter of the first wire may be 4mm2The diameter of the wire connected with the first plug is 1.5mm2And the wire diameter of the wire connected with the second plug is 2.5mm2。
In the second embodiment, this embodiment provides an electric water heater, which includes an outer casing 21, an inner casing 22, an electric heating tube 23 disposed in the inner casing 22, and a controller 15 and a grounding point 20 disposed inside the outer casing 21, the electric heating tube 23 is connected to the controller 15, the controller is further connected to a power circuit, as shown in fig. 1, the power circuit includes a connector 11 and at least two plugs, which are a first plug 12 and a second plug 13, respectively, the connector 11 has at least two input ends and two output ends, one of the input ends is a live input end 111, which is connected to a live end of each plug, the other input end is a neutral input end 112, which is connected to a neutral end of each plug, and the two output ends are a first output end 121 and a second output end 122, which are connected to the two output ends in a one-to-one correspondence through a protection device, that is, the live wire input end 111 is connected with the first output end 121 through a protection device, the zero wire input end 112 is connected with the second output end 122 through a protection device, the other end of the output end is connected with a power terminal of the controller 15 through the first wire 14, when the current is larger than the rated current, the protection device disconnects the input end and the output end, and therefore the controller and the mains supply can be disconnected, and the effect of protecting electric appliances and personal safety is achieved. Other structural features of the power circuit can be found in the description of the first embodiment, and are not described herein.
It should be noted that, the electric heating pipes in the water heater are two or more, the power ends of the electric heating pipes 23 are respectively connected with the controller 15, and different bathing requirements can be met by controlling different combinations of the plurality of electric heating pipes to supply power for work.
Generally, an electric water heater with a plurality of plugs is needed, the total power of an electric heating pipe of the electric water heater is not less than 3 kilowatts, and if the total power is less than 3 kilowatts, a lead with a standard wire diameter can be directly adopted to connect the plugs.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (10)
1. A power supply circuit, characterized by: the power supply connector comprises a connector and at least two plugs, wherein the connector is provided with at least two input ends and two output ends, the two input ends and the two output ends are connected in a one-to-one correspondence mode through protection devices, the output ends are respectively connected with power supply terminals of a controller, one of the input ends is a live wire input end and is respectively connected with a live wire end of each plug, the other input end is a zero wire input end and is respectively connected with a zero wire end of each plug, and when current is larger than rated current, the protection devices are disconnected with the input ends and the output ends.
2. The power supply circuit according to claim 1, wherein: at least one of the plugs is a three-phase plug and is also provided with a ground wire end, and the ground wire end is connected with a ground point of the water heater.
3. The power supply circuit according to claim 2, wherein: the other plug is a two-phase plug.
4. A power supply circuit according to any one of claims 1-3, characterized in that: the wire diameter of the wire connected between the input end and the plug is 1.0mm2Or 1.5mm2Or 2.5mm2。
5. A power supply circuit according to any one of claims 1-3, characterized in that: the connector is a thermal fuse.
6. The power supply circuit according to claim 4, wherein: the plug comprises a first plug and a second plug, and the wire diameter of a wire connected between the input end and the first plug is 1.5mm2The rated current of the first plug is 10A, and the wire diameter of a wire connected between the input end and the second plug is 2.5mm2The rated current of the second plug is 16A.
7. A power supply circuit according to any one of claims 1-3, characterized in that: the wire diameter of the wire connected between the output end and the controller is larger than the wire diameter of the wire connected between the input end and the plug.
8. The utility model provides an electric water heater, includes shell, inner bag, sets up the electric heating pipe in the inner bag and sets up controller and the ground point in the shell inboard, electric heating pipe with the controller is connected which characterized in that: further comprising the power supply circuit of any of claims 1-7, the power supply terminal of the controller being connected in correspondence with the output of the power supply circuit.
9. The electric water heater of claim 8, wherein: the electric heating pipes are provided with two or more than two, and power supply ends of the electric heating pipes are respectively connected with the controller.
10. The electric water heater of claim 8, wherein: the total power of the electric heating pipe is not less than 3 kilowatts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920506375.3U CN210128516U (en) | 2019-04-15 | 2019-04-15 | Power supply circuit and electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920506375.3U CN210128516U (en) | 2019-04-15 | 2019-04-15 | Power supply circuit and electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210128516U true CN210128516U (en) | 2020-03-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920506375.3U Active CN210128516U (en) | 2019-04-15 | 2019-04-15 | Power supply circuit and electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210128516U (en) |
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2019
- 2019-04-15 CN CN201920506375.3U patent/CN210128516U/en active Active
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