A water heater power-on test structure

Abstract

The present invention relates to the technical field of test fixtures, and in particular to a water heater power-on test structure. The water heater power-on test structure comprises: a plastic liner, the plastic liner comprising a plastic base and a conductive insert embedded in the opening of the plastic base; a heating tube flange, the heating tube flange being insulated and connected to the plastic liner; a connector, the first end of the connector being electrically connected to the conductive insert, and the second end of the connector being electrically in contact with the heating tube flange. By providing a connector to electrically connect the conductive insert in the plastic liner and the heating tube flange, the problem that the water heater cannot be normally powered on in a waterless state is solved, thereby enabling the water heater with a plastic liner and an anti-dry-burning module to be powered on for testing.

Description

Technical Field

[0001] The present invention relates to the technical field of testing tooling, and in particular to a power-on testing structure for a water heater. Background Art

[0002] With the development of technology, electric water heaters with plastic liners are being used because they have better corrosion resistance and pulse resistance. Because the material of the plastic liners is different from that of traditional enameled sheet metal liners, they are easily melted or damaged by dry-burning of the water heater. Therefore, water heaters with plastic liners need to be equipped with an anti-dry-burn module. The anti-dry-burn module determines whether there is water in the liner based on the resistance between the heating tube flange and the liner. If there is no water, the water heater cannot be powered on and operated normally. However, every electric water heater needs to be powered on and tested before it is shipped. Water heaters with anti-dry-burn modules and plastic liners cannot be powered on without water in the liner, making power-on testing impossible.

[0003] Therefore, there is an urgent need for a water heater power-on test structure to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a water heater power-on test structure, which can solve the problem that water heaters with plastic inner tanks and anti-dry-burning modules cannot be powered on for testing.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A water heater power-on test structure, comprising:

[0007] A plastic liner, comprising a plastic base and a conductive insert embedded in an opening of the plastic base;

[0008] A heating pipe flange, wherein the heating pipe flange is insulated and connected to the plastic liner;

[0009] A connecting piece, wherein a first end of the connecting piece can be conductively connected to the conductive insert, and a second end of the connecting piece can be conductively contacted with the heating pipe flange.

[0010] By setting up connectors to conductively connect the conductive insert in the plastic liner and the heating tube flange, the problem that the water heater cannot be powered on normally when there is no water is solved, so that the water heater with a plastic liner and an anti-dry burning module can be powered on and tested.

[0011] As an optional solution of the present invention, the heating pipe flange is fixed to the conductive insert by a bolt and nut assembly, and the first end is detachably connected to the bolt and nut assembly.

[0012] The first end is connected to the bolt and nut assembly to achieve conductive connection with the plastic liner, which is easy to operate.

[0013] As an optional solution of the present invention, a magnetic component is embedded in the first connecting portion, and the magnetic component can absorb the bolt and nut assembly.

[0014] The first end is fixed to the bolt and nut assembly by adsorption, which is convenient to fix and has a simple structure.

[0015] As an optional solution of the present invention, a positioning hole is provided on the first end, the end abuts against the end face of the nut in the bolt and nut assembly, and the bolt in the bolt and nut assembly is passed through the positioning hole.

[0016] The cooperation between the positioning hole and the bolt can position the connecting piece to prevent the connecting piece from being separated from the bolt and nut assembly.

[0017] As an optional solution of the present invention, the connecting member includes a first connecting portion and a second connecting portion that are rotatably connected, the first end is located on the first connecting portion, and the second end is located on the second connecting portion.

[0018] The first connecting portion and the second connecting portion are rotatably connected to ensure that the second connecting portion is in good contact with the heating pipe flange.

[0019] As an optional solution of the present invention, the first connecting portion includes a lug, and the lug is provided with a rotation hole;

[0020] The second connecting portion includes two connecting arms arranged opposite to each other, the lug is located between the two connecting arms, the two connecting arms are connected by a rotating shaft, and the rotating shaft passes through the rotating hole and can rotate relative to the rotating hole.

[0021] The above structure realizes the rotational cooperation between the first connecting part and the second connecting part, and has a simple and stable structure.

[0022] As an optional solution of the present invention, the connecting member further includes an elastic member, and the elastic member can drive the second connecting part to rotate toward the first connecting part.

[0023] By providing the elastic member, abutment pre-tightening force can be provided for the second connecting portion and the heating pipe flange, thereby ensuring good contact between the second connecting portion and the heating pipe flange.

[0024] As an optional solution of the present invention, the elastic member is a torsion spring, which is sleeved outside the rotating shaft, with one end of the torsion spring abutting against the first connecting portion, and the other end of the torsion spring abutting against the second connecting portion.

[0025] The structure is simple and the cost is low.

[0026] As an optional solution of the present invention, the elastic member is a tension spring, one end of the tension spring is connected to the first connection part, and the other end of the tension spring is connected to the second connection part.

[0027] The structure is simple and the cost is low.

[0028] As an optional solution of the present invention, the connecting piece is made of a conductive material.

[0029] The connecting piece is made of conductive material to achieve conductive connection between the plastic liner and the heating tube flange.

[0030] Beneficial effects of the present invention:

[0031] In the water heater power-on test structure provided by the present invention, a connector is provided to electrically connect the conductive insert in the plastic inner tank and the heating tube flange, thereby solving the problem that the water heater cannot be normally powered on in a waterless state, thereby enabling the water heater with a plastic inner tank and an anti-dry-burning module to be powered on and tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the heating pipe, heating pipe flange and connecting piece provided by the present invention when they are matched;

[0033] Figure 2 This is a schematic diagram of the structure of the heating pipe, heating pipe flange, bolt and nut assembly and connector provided by the present invention when they are matched;

[0034] Figure 3 It is a structural schematic diagram of the connecting piece provided by the present invention.

[0035] in:

[0036] 100, connecting piece; 210, heating tube flange; 220, heating tube; 310, bolt; 320, nut; 1, first connecting part; 11, positioning hole; 12, lug; 2, second connecting part; 21, connecting arm; 3, rotating shaft. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0038] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0041] This embodiment provides a water heater power-on test structure, which can be used to test a water heater with a plastic inner tank and an anti-dry-burn module. Figure 1 As shown, the water heater power-on test structure includes a water heater and a connector 100. The water heater includes a plastic inner liner (not shown in the figure) and a heating tube flange 210. A heating tube 220 is fixed on the heating tube flange 210, and the heating tube 220 can be inserted into the plastic inner liner to heat the water in the plastic inner liner. The plastic inner liner includes a plastic base and a conductive insert embedded in the opening of the plastic base, and the heating tube flange 210 is insulated and connected to the plastic inner liner. The first end of the connector 100 can be conductively connected to the conductive insert, and the second end of the connector 100 can be conductively contacted with the heating tube flange 210. The heating tube flange 210 is connected to the plastic inner liner through the connector 100, thereby preventing the anti-dry-burn module from judging the water heater in a waterless state as a dry-burn state when the water heater is powered on, thereby ensuring that the water heater can be powered on smoothly.

[0042] like Figure 2As shown, the connector 100 includes a first connecting portion 1 and a second connecting portion 2. The first connecting portion 1 can be detachably connected to the water heater. The first connecting portion 1 is configured with a first end that is conductively connected to the conductive insert. The second connecting portion 2 is conductively connected to the first connecting portion 1, and the second connecting portion 2 is configured with a second end that can be conductively contacted with the heating pipe flange 210. Therefore, through the cooperation of the first connecting portion 1 and the second connecting portion 2, the conductive insert is conductively connected to the heating pipe flange 210, so as to prevent the anti-dry-burn module from determining that the water heater is in a dry-burn state when it is powered on, thereby ensuring that the water heater can be successfully powered on and tested.

[0043] In this embodiment, the heating tube flange 210 is secured to the conductive insert via a bolt and nut assembly. Specifically, the plastic base is a bladder-like structure with an open end. The conductive insert is embedded in the opening of the plastic base, and the heating tube flange 210 is secured to the conductive insert to obscure the opening of the plastic base. The bolt and nut assembly includes a bolt 310 and a nut 320. The bolt 310 is secured to the conductive insert. The heating tube flange 210 is provided with a mounting hole. The bolt 310 passes through the mounting hole and is connected to the nut 320. The nut 320 abuts against the heating tube flange 210, thereby securing the heating tube flange 210 to the plastic inner bladder.

[0044] To prevent electrical conduction between the heating pipe flange 210 and the conductive insert, the heating pipe flange 210 is insulated from the conductive insert and the bolt and nut assembly. Optionally, insulating members are provided between the heating pipe flange 210 and the conductive insert, and between the heating pipe flange 210 and the bolt and nut assembly. The insulating members can be made of insulating materials such as plastic or rubber.

[0045] To make the connector 100 more convenient to use, the first connecting part 1 and the bolt and nut assembly can be detachably connected, and the second connecting part 2 can abut against the heating pipe flange 210, thereby facilitating the disassembly and assembly of the connector 100 and the water heater, which is beneficial to improving testing efficiency.

[0046] Specifically, the first connecting portion 1 is embedded with a magnetic member that can attract the bolt and nut assembly. The connecting member 100 is fixed to the bolt and nut assembly by magnetic attraction, which is convenient for assembly and disassembly, and does not require an additional fixing structure on the water heater to cooperate with the first connecting portion 1.

[0047] To further ensure good contact between the first connecting portion 1 and the bolt and nut assembly, as Figure 2 and Figure 3As shown, the first connecting portion 1 is provided with a positioning hole 11. The first connecting portion 1 can abut the end face of the nut 320 in the bolt and nut assembly. The bolt 310 in the bolt and nut assembly passes through the nut 320 and the positioning hole 11 in sequence. The cooperation between the positioning hole 11 and the bolt 310 can position the first connecting portion 1, preventing it from being disengaged from the bolt and nut assembly. The abutment of the first connecting portion 1 against the end face of the nut 320 ensures surface contact between the first connecting portion 1 and the bolt and nut assembly, thereby ensuring the reliability of the conductive connection between the first connecting portion 1 and the bolt and nut assembly.

[0048] Optionally, the first connecting portion 1 can attract the bolt 310 and / or the nut 320. The magnetic attraction member can be a magnet. The magnet is coated with a conductive material to achieve conductive contact between the first connecting portion 1 and the bolt and nut assembly.

[0049] The tightness of the fit between the bolt 310 and the nut 320 in the bolt-nut assembly will affect the axial position of the first connecting part 1 along the bolt 310, thereby affecting the axial position of the second connecting part 2 along the bolt 310, and further resulting in the abutment effect between the second connecting part 2 and the heating tube flange 210.

[0050] To solve the above problem, the first connecting part 1 and the second connecting part 2 are rotatably connected so that the second connecting part 2 can rotate relative to the first connecting part 1 according to actual needs, thereby adjusting the relative position with the heating tube flange 210 to ensure good abutment between the second connecting part 2 and the heating tube flange 210.

[0051] like Figure 3 As shown, the first connecting portion 1 includes a lug 12 with a rotation hole formed therein. The second connecting portion 2 includes two opposing connecting arms 21, with the lug 12 positioned between the two connecting arms 21. The two connecting arms 21 are connected by a rotating shaft 3, which passes through the rotation hole and can rotate relative to the rotation hole. This structure enables rotational coordination between the first connecting portion 1 and the second connecting portion 2, while maintaining a simple structure.

[0052] In order to ensure the abutment effect between the second connecting part 2 and the heating tube flange 210, the connecting part 100 also includes an elastic part, which can drive the second connecting part 2 to rotate toward the first connecting part 1 to provide a pre-tightening force for the abutment between the second connecting part 2 and the heating tube flange 210, thereby preventing the second connecting part 2 from detaching from the heating tube flange 210.

[0053] Specifically, the elastic member can be a torsion spring, which is sleeved outside the rotating shaft 3, with one end of the torsion spring abutting against the first connecting part 1 and the other end of the torsion spring abutting against the second connecting part 2, so that the second connecting part 2 can rotate relative to the first connecting part 1.

[0054] In other embodiments, the elastic member may also be a tension spring, one end of which is connected to the first connection part 1 and the other end of which is connected to the second connection part 2 , and can also drive the second connection part 2 to rotate toward the first connection part 1 .

[0055] To ensure conductive connection between the first connecting portion 1 and the second connecting portion 2 , the first connecting portion 1 and the second connecting portion 2 are both made of conductive materials, such as copper, aluminum, iron or aluminum alloy.

[0056] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A water heater power-on test structure, characterized in that: Capable of conducting electrical tests on water heaters with plastic inner tanks and anti-dry boil modules, including: A plastic liner, comprising a plastic base and a conductive insert embedded in an opening of the plastic base; A heating pipe flange (210), the heating pipe flange (210) being insulated and connected to the plastic liner; A connector (100), wherein a first end of the connector (100) can be conductively connected to the conductive insert, and a second end of the connector (100) can be conductively contacted with the heating pipe flange (210), so as to prevent the anti-dry-burn module from judging the water heater in a waterless state as a dry-burn state when the water heater is powered on.

2. The water heater power-on test structure according to claim 1, characterized in that: The heating pipe flange (210) is fixed to the conductive insert via a bolt and nut assembly, and the first end is detachably connected to the bolt and nut assembly.

3. The water heater power-on test structure according to claim 2, characterized in that: A magnetic component is embedded in the first end, and the magnetic component can absorb the bolt and nut assembly.

4. The water heater power-on test structure according to claim 2, characterized in that: A positioning hole (11) is provided on the first end, the first end abuts against the end face of the nut (320) in the bolt and nut assembly, and the bolt (310) in the bolt and nut assembly is passed through the positioning hole (11).

5. The water heater power-on test structure according to any one of claims 1 to 4, characterized in that: The connecting member (100) comprises a first connecting portion (1) and a second connecting portion (2) which are rotatably connected, the first end being located on the first connecting portion (1), and the second end being located on the second connecting portion (2).

6. The water heater power-on test structure according to claim 5, characterized in that: The first connecting portion (1) comprises a lug (12), and a rotation hole is provided on the lug (12); The second connecting portion (2) comprises two connecting arms (21) arranged opposite to each other, the lug (12) is located between the two connecting arms (21), the two connecting arms (21) are connected via a rotating shaft (3), and the rotating shaft (3) is arranged in the rotating hole and can rotate relative to the rotating hole.

7. The water heater power-on test structure according to claim 6, characterized in that: The connecting member (100) further comprises an elastic member, wherein the elastic member is capable of driving the second connecting portion (2) to rotate toward the first connecting portion (1).

8. The water heater power-on test structure according to claim 7, characterized in that: The elastic member is a torsion spring, which is sleeved outside the rotating shaft (3), one end of the torsion spring abuts against the first connecting portion (1), and the other end of the torsion spring abuts against the second connecting portion (2).

9. The water heater power-on test structure according to claim 7, characterized in that: The elastic member is a tension spring, one end of which is connected to the first connection part (1), and the other end of which is connected to the second connection part (2).

10. The water heater power-on test structure according to any one of claims 1 to 4, characterized in that: The connecting piece (100) is made of conductive material.

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