Water heater and anti-freezing device thereof

Abstract

The utility model provides a water heater and an anti-freezing device thereof, the anti-freezing device comprises a temperature control switch and a plurality of anti-freezing assemblies, each anti-freezing assembly comprises a plurality of anti-freezing blocks which are sequentially connected in series, and each anti-freezing assembly comprises a first wire and a second wire; the anti-freezing assemblies are connected in parallel through respective first wires and then pressed together through conductive buckles to form a first end, and the anti-freezing assemblies are connected in parallel through respective second wires and then pressed together through conductive buckles to form a second end. The first end and the second end are sleeved and pressed together through a preset pipe prepared from an insulating material; the first end is electrically connected with the temperature control switch, the second end is electrically connected with the power supply component, and the temperature control switch is electrically connected with the power supply component to form a power-on loop. Only one terminal of the whole anti-freezing assembly is connected with the power supply component on the main board, the number of the terminals on the main board is reduced, the space of the main board is saved, the number of whole wire harnesses is small, the whole wire harnesses are simple, the cost is low, and the water heater has the anti-freezing function.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water heaters, and in particular to a water heater and an antifreeze device thereof. Background Art

[0002] As people's living standards improve, they pay more and more attention to the quality of life, and when choosing water heaters, they also prefer high-quality ones, such as water heaters equipped with anti-freeze function.

[0003] Taking gas water heaters as an example, gas water heaters have water tanks, plastic water valves and other parts. Water heaters sold to the north, due to the low temperature in the north in winter, in order to prevent the water heaters from being frozen, the water heaters must be equipped with antifreeze components to reduce the risk of the water heaters being frozen when not in use.

[0004] The working principle of the gas water heater is that when the user turns on the faucet, cold water enters the water heater and the water heater starts working. After the gas enters the combustion chamber through the proportional valve, the igniter ignites the gas and heats the heat exchanger. The heat exchanger displaces the heat into the cold water, and the water temperature rises. It is transported from the outlet pipe to the water use end. The remaining exhaust gas after heat exchange is collected in the gas collecting hood and discharged uniformly.

[0005] The working principle of the antifreeze component of the existing gas water heater is as follows: the antifreeze component is composed of one or more antifreeze blocks. The main function of the antifreeze block is to generate heat when powered on. The heat generated heats the water pipe and the shell on the heat exchanger, or the plastic water valve to increase the temperature, so as to prevent ice from forming and thus from being swollen, burst or frozen. Whether the antifreeze block is powered on or not is triggered by a temperature control switch, which is generally equipped with one or two temperature control switch components. The temperature control switch will be turned on when the temperature is low, so that the antifreeze block is powered on and heated, and will be turned off when the temperature is high, so that the antifreeze block is powered off and cooled. In the existing antifreeze component, each antifreeze block is connected to the power supply component on the mainboard through an independent wiring harness. The wiring harness is large and complex, and the cost is particularly high. Utility Model Content

[0006] The technical problem to be solved by the present disclosure is to provide a water heater and an antifreeze device thereof in order to overcome the defects in the prior art that each antifreeze block in the antifreeze assembly is connected to the power supply component through an independent wiring harness, the wiring harness is numerous and complex, and the cost is particularly high.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] In a first aspect, an antifreeze device for a water heater is provided, the antifreeze device comprising a temperature control switch and a plurality of antifreeze components;

[0009] The power of each group of antifreeze components meets the preset power threshold;

[0010] Each group of antifreeze components includes a plurality of antifreeze blocks connected in series, and each group of the antifreeze components includes a first conductor and a second conductor;

[0011] Each group of the antifreeze components is connected in parallel through the respective first conducting wires and then pressed together through a conductive buckle to form a first end; each group of the antifreeze components is connected in parallel through the respective second conducting wires and then pressed together through a conductive buckle to form a second end;

[0012] The first end and the second end are pressed together by a preset pipe sleeve made of insulating material;

[0013] The first end is electrically connected to the temperature control switch, the second end is electrically connected to the power supply component, and the temperature control switch is electrically connected to the power supply component to form a power-on circuit;

[0014] The power supply component is used to supply power to the antifreeze block so as to make the antifreeze block generate heat;

[0015] The temperature control switch is used to connect or disconnect the power circuit.

[0016] Preferably, the temperature control switch is used to connect the power-on circuit in a first state, and the first state indicates that the actual ambient temperature is lower than or equal to the preset ambient temperature;

[0017] Alternatively, the temperature-controlled switch is used to disconnect the power-on circuit in a second state, and the second state indicates that the actual ambient temperature is higher than the preset ambient temperature.

[0018] Preferably, the temperature control switch comprises a temperature relay;

[0019] And / or, the conductive buckle comprises a copper buckle;

[0020] And / or, the first end is electrically connected to the temperature controlled switch via a first connector, and the second end is electrically connected to the power supply component via a second connector.

[0021] Preferably, the preset pipes include insulating pipes and anti-slip pipes;

[0022] The first end and the second end are pressed together by the insulating tube;

[0023] The outer layer of the insulating tube is covered with the anti-slip tube.

[0024] Preferably, the insulating tubing comprises a heat shrinkable tube, and the anti-slip tubing comprises a yellow wax tube;

[0025] Or, the insulating tubing includes a heat shrinkable tube, and the anti-slip tubing includes a braided tube;

[0026] Or, the insulating tube and the anti-slip tube both comprise braided tubes;

[0027] Alternatively, the insulating tubing includes a heat shrinkable tube, and the anti-slip tubing includes a glass fiber tube.

[0028] Preferably, a binding belt is fixed to the outer layer of the anti-slip pipe.

[0029] Preferably, the second end and the power supply component are in a power supply normal state;

[0030] The first end and the temperature control switch are in a normally-off state;

[0031] The temperature control switch is used to connect the electrical connection with the first end to connect the power circuit so that the antifreeze block is powered on and generates heat;

[0032] or,

[0033] The second end and the power supply component are in a power supply normally off state;

[0034] The first end and the temperature control switch are in a normally-off state;

[0035] The temperature control switch is used to connect the electrical connection with the first end to connect the power supply circuit, and drive the second end and the power supply component to be in a power supply connection state so that the antifreeze block is energized and heated.

[0036] Preferably, the antifreeze device comprises two groups of antifreeze components.

[0037] In a second aspect, a water heater is also provided, comprising a power supply component, and the water heater also comprises the antifreeze device of the water heater mentioned above.

[0038] Preferably, the water heater comprises a gas water heater.

[0039] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0040] The positive and progressive effects of this disclosure are:

[0041] The water heater and antifreeze device disclosed herein press the first wires of each group of antifreeze components together through a conductive buckle to form a first end, and press the second wires of each group of antifreeze components together through a conductive buckle to form a second end; the first end and the second end are pressed together through a preset pipe sleeve made of insulating material, so that the terminals of the antifreeze components have insulating properties, thereby ensuring electrical safety; since the temperature control switch is located in the antifreeze device, compared with the existing temperature control switch integrated on the main board, only one terminal of the entire antifreeze component is connected to the power supply component on the main board, reducing the number of terminals on the main board, saving space on the main board, and the overall wiring harness is less and simpler, with lower cost; the water heater has an antifreeze function, thereby improving the performance of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A first structural schematic diagram of an antifreeze device for a water heater provided in Embodiment 1 of the present disclosure;

[0043] Figure 2 A second structural schematic diagram of the antifreeze device for a water heater provided in Embodiment 1 of the present disclosure;

[0044] Figure 3 This is a schematic diagram of the structure of the water heater provided in Example 2 of the present disclosure. DETAILED DESCRIPTION

[0045] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0046] Example 1

[0047] This embodiment provides an antifreeze device for a water heater, such as Figure 1 As shown, the antifreeze device includes a temperature control switch 1 and several groups of antifreeze components 2;

[0048] The power of each group of antifreeze components 2 meets the preset power threshold;

[0049] Each group of antifreeze components 2 includes a plurality of antifreeze blocks 21 connected in series, and each group of antifreeze components 2 includes a first conductor 22 and a second conductor 23;

[0050] Each group of antifreeze components 2 is connected in parallel via respective first wires 22 and then pressed together by a conductive buckle to form a first end 24. Each group of antifreeze components 2 is connected in parallel via respective second wires 23 and then pressed together by a conductive buckle to form a second end 25.

[0051] The first end 24 and the second end 25 are pressed together by a preset tube made of insulating material;

[0052] The first end 24 is electrically connected to the temperature control switch 1, the second end 25 is electrically connected to the power supply component 3, and the temperature control switch 1 is electrically connected to the power supply component 3 to form a power-on circuit;

[0053] The power supply component 3 is used to supply power to the antifreeze block 21 so as to make the antifreeze block 21 heat up;

[0054] The temperature control switch 1 is used to connect or disconnect the power circuit.

[0055] The power of each group of antifreeze components meets the preset power threshold, ensuring that the power of each group of antifreeze components is the same or similar, ensuring the uniformity of heating of the antifreeze blocks.

[0056] The antifreeze block will generate heat when powered on. Each set of antifreeze components includes several antifreeze blocks connected in series. The first wire and the second wire specifically refer to the end wires of the antifreeze block cable, that is, the conductive metal wires that are directly exposed without being covered with insulating materials.

[0057] Each group of antifreeze components is connected in parallel through their respective first wires and then pressed together through a conductive buckle to form a first end. Each group of antifreeze components is connected in parallel through their respective second wires and then pressed together through a conductive buckle to form a second end; they can be buckled together or riveted together. The conductive buckle has certain high temperature resistance and strength, and has good conductivity. It can be compressed while ensuring the conductivity of each wire in the terminal.

[0058] The first end and the second end are pressed together by a preset pipe sleeve. Since the preset pipe is made of insulating material and has insulating properties, the terminals of the antifreeze assembly have insulating properties, thereby ensuring electrical safety.

[0059] The first end is electrically connected to the temperature control switch, and the second end is electrically connected to the power supply component. The temperature control switch is electrically connected to the power supply component to form a power-on circuit. The temperature control switch itself can connect or disconnect the electrical connection with the first end according to changes in ambient temperature, thereby connecting or disconnecting the power-on circuit, so that the antifreeze block performs heating work or not.

[0060] The antifreeze device of the water heater of the present embodiment makes the terminals of the antifreeze component have insulation properties, thereby ensuring electrical safety, by pressing the first end and the second end together through a preset pipe sleeve made of insulating material; since the temperature control switch is located in the antifreeze device, compared with the existing temperature control switch integrated on the main board, only one terminal of the entire antifreeze component is connected to the power supply component on the main board, which reduces the number of terminals on the main board, saves the space of the main board, and the overall wiring harness is less and simpler, with lower cost; the water heater has an antifreeze function, which improves the performance of the water heater.

[0061] In an optional embodiment, the temperature control switch is used to connect the power circuit in a first state, and the first state indicates that the actual ambient temperature is lower than or equal to the preset ambient temperature; or, the temperature control switch is used to disconnect the power circuit in a second state, and the second state indicates that the actual ambient temperature is higher than the preset ambient temperature.

[0062] Specifically, the temperature control switch may be a temperature relay, and the conductive buckle may be a copper buckle.

[0063] The temperature relay is a relay that operates when the external temperature reaches a given value to cut off the power supply and protect the equipment. The temperature relay has the characteristics of small size, light weight, high temperature control accuracy, and strong versatility.

[0064] In an optional implementation, the first end is electrically connected to the temperature control switch via a first connector, and the second end is electrically connected to the power supply component via a second connector.

[0065] Connectors can also be called connectors, which facilitate the electrical connection between different products or components.

[0066] The connector includes a male head and a female head. If one of the two products to be electrically connected is configured with a male head, the other is configured with a female head. For example, the male head at the first end and the female head of the temperature control switch can be inserted and connected to achieve electrical connection in conjunction with signal control.

[0067] In an optional embodiment, the preset pipe includes an insulating pipe and an anti-slip pipe; the first end and the second end are pressed together by the insulating pipe; and the outer layer of the insulating pipe is pressed with the anti-slip pipe.

[0068] The insulating tube covers the first end and the second end and presses the first end and the second end, so that the terminal after the sleeve pressing has insulation performance.

[0069] The outer layer of the insulating tube is covered with an anti-slip tube, which makes it difficult for the terminal to slip off the connection with the temperature control switch or power supply components, thus ensuring safety.

[0070] In an optional embodiment, the insulating tubing includes a heat shrinkable tube, and the anti-slip tubing includes a yellow wax tube;

[0071] Or, the insulating tubing includes a heat shrink tubing, and the anti-slip tubing includes a braided tubing;

[0072] or, the insulating tubing and the anti-slip tubing both include braided tubing;

[0073] Or, the insulating tubing includes a heat shrinkable tube, and the anti-slip tubing includes a fiberglass tube.

[0074] Heat shrink tubing is a special polyolefin heat shrink tubing. The outer layer is made of high-quality soft cross-linked polyolefin material and the inner layer is made of hot melt adhesive. The outer layer has the characteristics of insulation, corrosion resistance, and wear resistance, while the inner layer has the advantages of low melting point, waterproof sealing, and high adhesion.

[0075] Yellow wax tube (i.e. polyvinyl chloride glass fiber hose) is an electrical insulating varnish tube woven with alkali-free glass fiber and coated with polyethylene resin and plasticized. It has good softness, elasticity, anti-slip properties, insulation and chemical resistance.

[0076] The braided tube is insulated, corrosion-resistant, wear-resistant and slip-resistant.

[0077] Fiberglass tube has good insulation and anti-slip properties.

[0078] Heat shrink tubes, yellow wax tubes, braided tubes and glass fiber tubes can be used in combination to ensure the insulation and anti-slip properties of the terminals.

[0079] The insulating pipes and anti-slip pipes disclosed in the present invention include but are not limited to the above-mentioned combinations, and may also be other pipes that meet the insulation and anti-slip properties. Those skilled in the art can make reasonable selections based on actual needs.

[0080] In an optional embodiment, a binding belt is fixed to the outer layer of the anti-slip pipe.

[0081] The outer layer of the anti-slip pipe is bundled with a strapping tape to further ensure the anti-slip performance of the terminal.

[0082] In an optional implementation, the second end and the power supply component are in a power supply normal connection state;

[0083] The first end and the temperature control switch are in a normally-off state;

[0084] The temperature control switch is used to connect the electrical connection with the first end to connect the power circuit so that the antifreeze block is energized and heated.

[0085] If the second end and the power supply component are in a normally powered on state, and the first end and the temperature control switch are in a normally off state; then when the antifreeze function needs to be used, the temperature control switch is used to connect the electrical connection with the first end to connect the power circuit so that the antifreeze block is energized and heated.

[0086] In an optional embodiment, the second end 25 and the power supply component 3 are in a power supply normally off state;

[0087] The first end 24 and the temperature control switch 1 are in a normally-off state;

[0088] The temperature control switch 1 is used to connect the electrical connection with the first end 24 to complete the power circuit, and drive the second end 25 and the power supply component 3 to be in a power supply connection state, so that the antifreeze block 21 is energized and heated.

[0089] If the second end and the power supply component are in a normally-off state, and the first end and the temperature control switch are in a normally-off state; then when the antifreeze function needs to be used, the temperature control switch not only needs to drive the second end and the power supply component to be in a power connection state, but also needs to connect the electrical connection with the first end to connect the power circuit so that the antifreeze block is energized and heated.

[0090] In an optional embodiment, the antifreeze device includes two sets of antifreeze components.

[0091] like Figure 2 As shown, there are two groups of antifreeze components, the first group is short round bar antifreeze blocks, long square antifreeze blocks, short square antifreeze blocks, and the second group is long round bar antifreeze blocks. The short round bar antifreeze blocks, long square antifreeze blocks and short square antifreeze blocks are connected in series and then connected in parallel with the long round bar antifreeze blocks; the first end is electrically connected to the temperature control switch through the first connector, and the second end is electrically connected to the power supply component through the second connector.

[0092] Two sets of antifreeze components can already meet the antifreeze requirements of the water heater, and the two sets of antifreeze components are more convenient to press using conductive buckles.

[0093] Example 2

[0094] This embodiment provides a water heater, such as Figure 3 As shown, the water heater includes a power supply component and the antifreeze device of the water heater in Example 1.

[0095] The water heater may also include other components.

[0096] Taking a gas water heater as an example, the gas water heater includes a heat exchanger, a water inlet pipe, a water outlet pipe, a water inlet joint, a water flow valve assembly, etc.

[0097] For example, the antifreeze device includes two groups of antifreeze components. The first group is short round rod antifreeze blocks, rectangular antifreeze blocks, and short square antifreeze blocks, and the second group is long round rod antifreeze blocks. The long round rod antifreeze blocks can be arranged near the fins of the heat exchanger, where the amount of water in the water pipe is the largest and the required heating power is greater; the rectangular antifreeze blocks are arranged at the outlet pipe, mainly to heat the water in the outlet pipe and the outlet joint, the short round rod antifreeze blocks are arranged inside the inlet joint, mainly to heat the water in the inlet joint and the water flow valve assembly, and the short square antifreeze blocks are arranged on the inlet pipe, mainly to heat the water in the water flow valve and the water inlet pipe. The water flow valve is generally a plastic part, which is more prone to freezing and cracking. The inside of the water heater The parts that are prone to freezing and cracking are the water valve assembly and the heat exchanger assembly. The heat exchanger assembly is a thin copper tube with a large amount of water inside, which makes it easier for ice to burst. The temperature control switch (such as a temperature relay) is placed on the heat exchange tube at the top of the heat exchanger to detect the temperature of the top space and the temperature on the heat exchanger pipe. The advantage of placing it here is that it is closer to the cold source. Generally, the freezing and cracking of the water heater is caused by the cold air flowing back into the water heater through the smoke pipe, and then passing through the fan to reach the heat exchanger. Therefore, it is arranged on the heat exchange tube at the top of the heat exchanger.

[0098] The water heater of this embodiment includes the antifreeze device of the water heater in Embodiment 1. Only one terminal of the entire antifreeze assembly is connected to the power supply component on the main board, which reduces the number of terminals on the main board and saves space on the main board. The overall wiring harness is relatively small and simple, and the cost is relatively low. This enables the water heater to have an antifreeze function, thereby improving the performance of the water heater.

[0099] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. An antifreeze device for a water heater, characterized in that: The antifreeze device includes a temperature control switch and several groups of antifreeze components; The power of each group of antifreeze components meets the preset power threshold; Each group of antifreeze components includes a plurality of antifreeze blocks connected in series, and each group of the antifreeze components includes a first conductor and a second conductor; Each group of the antifreeze components is connected in parallel through the respective first conducting wires and then pressed together through a conductive buckle to form a first end; each group of the antifreeze components is connected in parallel through the respective second conducting wires and then pressed together through a conductive buckle to form a second end; The first end and the second end are pressed together by a preset pipe sleeve made of insulating material; The first end is electrically connected to the temperature control switch, the second end is electrically connected to the power supply component, and the temperature control switch is electrically connected to the power supply component to form a power-on circuit; The power supply component is used to supply power to the antifreeze block so as to make the antifreeze block generate heat; The temperature control switch is used to connect or disconnect the power circuit.

2. The antifreeze device according to claim 1, characterized in that: The temperature control switch is used to connect the power circuit in a first state, wherein the first state indicates that the actual ambient temperature is lower than or equal to the preset ambient temperature; Alternatively, the temperature-controlled switch is used to disconnect the power-on circuit in a second state, and the second state indicates that the actual ambient temperature is higher than the preset ambient temperature.

3. The antifreeze device according to claim 1, characterized in that: The temperature control switch includes a temperature relay; And / or, the conductive buckle comprises a copper buckle; And / or, the first end is electrically connected to the temperature controlled switch via a first connector, and the second end is electrically connected to the power supply component via a second connector.

4. The antifreeze device according to claim 1, characterized in that: The preset pipes include insulating pipes and anti-slip pipes; The first end and the second end are pressed together by the insulating tube; The outer layer of the insulating tube is covered with the anti-slip tube.

5. The antifreeze device according to claim 4, characterized in that: The insulating tubing material comprises a heat shrinkable tube, and the anti-slip tubing material comprises a yellow wax tube; Or, the insulating tubing includes a heat shrinkable tube, and the anti-slip tubing includes a braided tube; Or, the insulating tube and the anti-slip tube both comprise braided tubes; Alternatively, the insulating tubing includes a heat shrinkable tube, and the anti-slip tubing includes a glass fiber tube.

6. The antifreeze device according to claim 4, characterized in that: The outer layer of the anti-slip pipe is fixed with a binding belt.

7. The antifreeze device according to any one of claims 2 to 6, characterized in that: The second end and the power supply component are in a power supply normal connection state; The first end and the temperature control switch are in a normally-off state; The temperature control switch is used to connect the electrical connection with the first end to connect the power circuit so that the antifreeze block is powered on and generates heat; or, The second end and the power supply component are in a power supply normally off state; The first end and the temperature control switch are in a normally-off state; The temperature control switch is used to connect the electrical connection with the first end to connect the power supply circuit, and drive the second end and the power supply component to be in a power supply connection state so that the antifreeze block is energized and heated.

8. The antifreeze device according to claim 7, characterized in that: The antifreeze device comprises two groups of antifreeze components.

9. A water heater, comprising a power supply component, characterized in that: The water heater further comprises an antifreeze device for the water heater according to any one of claims 1-8.

10. The water heater according to claim 9, characterized in that The water heater comprises a gas water heater.

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