A power cord assembly structure and an electric water heater using the same

By combining the female and female clips, the problem of existing wire clamps being able to fix only a single power cord is solved, enabling safe fixing and simplified installation of various wires, and reducing production costs.

CN224418376UActive Publication Date: 2026-06-26FOSHAN SHUNDE DISTRICT AORONG ELECTRICAL APPLIANCES IND C

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SHUNDE DISTRICT AORONG ELECTRICAL APPLIANCES IND C
Filing Date
2025-07-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing wire clamps can only secure a single cylindrical power cord, requiring water heaters to have multiple clearance holes drilled in the casing, making installation complex and costly.

Method used

It adopts a combination structure of female and female buckles, and forms clamping holes through the locking blocks and arc-shaped slots. It is suitable for fixing various wires, and enhances the firmness through the ribs and snap-fit ​​positions. It is made of flame-retardant plastic material.

Benefits of technology

It achieves secure fixing of various wires, simplifies the installation process, improves assembly efficiency and pass rate, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of power line assembly structure and electric water heater using it, power line assembly structure includes female buckle and sub buckle, female buckle is provided with accommodating groove, the both ends of X axis direction of accommodating groove are equipped with threading gap;Sub buckle is equipped with clamping block, the side wall of accommodating groove is equipped with the buckle slot of shape size compatible with clamping block, sub buckle is embedded in the notch of accommodating groove, and clamping block and buckle slot snap connection.The power line assembly structure is equipped with female buckle and sub buckle, combined into wire buckle clamp by the buckling of female buckle and sub buckle, can fix wire, ensure the safety, neat of the wire of water heater, prevent wire from being damaged or wire being pulled out due to external force or artificial pulling out.The above structure is not only easy to assemble and position, clamps firmly, but also simple to assemble, greatly improves one-time assembly qualification rate and production efficiency, reduces production cost, not only suitable for single power line, but also suitable for constraining power line and other external connecting line together.
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Description

Technical Field

[0001] This utility model relates to the field of wire clips, and more particularly to a power cord assembly structure and an electric water heater using the same. Background Technology

[0002] Currently, the wire clamps used in water heaters are all paired snap-fit ​​structures, including a first and a second wire clamp. The power cord clamp is installed in the clamping hole formed after the first and second wire clamps are snapped together, and then clamped with pliers and placed into the hole in the outer shell. However, the clamping holes are all approximately elliptical holes, which can only fix a single cylindrical power cord. In addition to the power cord, some water heaters have other wires that need to pass through the water heater shell. The existing structure can only open another clearance hole on the water heater shell and use another wire clamp, which makes the installation process complicated, the assembly efficiency low, and the manufacturing cost high. Utility Model Content

[0003] The purpose of this utility model is to propose a power cord assembly structure and an electric water heater using the same, so as to solve the problem that the above-mentioned wire clamp can only fix a single cylindrical power cord and has poor versatility.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides a power cord assembly structure, including a female buckle and a female buckle. The female buckle is provided with a receiving groove, and the shape and size of the groove opening are adapted to the female buckle. Both ends of the receiving groove in the X-axis direction are provided with wire-passing notches.

[0006] The sub-buckle is provided with a locking block, and the side wall of the receiving groove is provided with a buckle groove that matches the shape and size of the locking block. The sub-buckle is embedded in the opening of the receiving groove, and the locking block is snapped into the buckle groove. The locking block is provided with an arc-shaped hole groove, which, when the female buckle and the sub-buckle are fastened together, cooperates with the inner wall of the receiving groove to form a clamping hole. The clamping hole is used to clamp the wire. The sub-buckle cooperates with the wire-passing notch to form a wire-passing hole.

[0007] In the power cord assembly structure, a raised rib is provided on the inner side of the arc-shaped slot.

[0008] In the power cord assembly structure, the female buckle includes an integrally formed outer part and a fixing part; the cross-section of the outer part is larger than the cross-section of the fixing part, the receiving groove is opened in the fixing part, one wire threading notch is provided in the fixing part, and the other wire threading notch is provided in the outer part.

[0009] In the power cord assembly structure, the outer side of the fixing part is provided with a first groove, and the outer side of the sub-buckle is provided with a second groove. The first groove and the second groove cooperate with the female buckle and the sub-buckle to form a snap-fit ​​station.

[0010] In the power cord assembly structure, a connecting strip is provided between the female buckle and the female buckle. One end of the connecting strip is connected to the female buckle, and the other end of the connecting strip is connected to the female buckle.

[0011] In the power cord assembly structure, the female buckle, the female buckle, and the connecting strip are integrally formed.

[0012] In the power cord assembly structure, the female buckle, female buckle, and connecting strip are made of flame-retardant plastic.

[0013] This utility model also provides an electric water heater that uses the above-described power cord assembly structure.

[0014] One of the technical solutions of this utility model can have the following beneficial effects:

[0015] The power cord assembly structure features a female and a female buckle, which, when engaged, form a wire clamp to secure the wires, ensuring their safety and neatness. This prevents damage or pull-out of the wires due to external force or human intervention. The structure is easy to assemble and position, provides a secure clamp, and is simple to assemble, significantly improving the first-time assembly pass rate and production efficiency while reducing production costs. It is suitable not only for single power cords but also for binding power cords together with other external connection wires. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure on the other side of the embodiment;

[0018] Figure 3 This is a top view of one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the female buckle and the male buckle in a fastening state in one embodiment of this utility model;

[0020] In the attached diagram: female buckle 1, female buckle 2, connecting strip 3;

[0021] External part 11; fixing part 12; locking block 21; second groove 22;

[0022] Receiving groove 101; Threading notch 102; Fastening groove 103; First groove 121; Arc-shaped hole groove 210; Raised rib 211. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please refer to Figures 1-4 This utility model provides a power cord assembly structure, including a female buckle 1 and a female buckle 2. The female buckle 1 is provided with a receiving groove 101, and the shape and size of the groove opening of the receiving groove 101 are adapted to the female buckle 2. Both ends of the receiving groove 101 in the X-axis direction are provided with wire-passing notches 102.

[0028] The sub-buckle 2 is provided with a locking block 21, and the side wall of the receiving groove 101 is provided with a buckle groove 103 that matches the shape and size of the locking block 21. The sub-buckle 2 is embedded in the groove of the receiving groove 101, and the locking block 21 is snapped together with the buckle groove 103. The locking block 21 is provided with an arc-shaped hole groove 210. The arc-shaped hole groove 210 cooperates with the inner wall of the receiving groove 101 to form a clamping hole as the female buckle 1 and the sub-buckle 2 are fastened together. The clamping hole is used to clamp the wire. The sub-buckle 2 cooperates with the wire-passing notch 102 to form a wire-passing hole.

[0029] The power cord assembly structure includes a female buckle 1 and a female buckle 2. The female buckle 1 and female buckle 2 engage to form a wire clamp, which secures the wire, ensuring the water heater's wires are safe and neat, and preventing damage or pull-out of the wires due to external force or human intervention. This structure not only facilitates easy assembly and positioning and provides a secure clamping grip, but also simplifies assembly, significantly improving the first-time assembly pass rate and production efficiency, while reducing production costs. It is suitable not only for single power cords but also for binding power cords together with other external connection wires.

[0030] In practical applications, the wire is inserted into the receiving groove 101 from the opening of the receiving groove 101, and both ends of the wire are passed out from the wire passing notch 102; then, the sub-buckle 2 is fastened into the opening of the receiving groove 101, and the locking block 21 is inserted into the buckle slot 103 to complete the assembly.

[0031] After assembly, the wire passes through the threading hole at one end, enters the receiving groove 101, and passes through the threading hole at the other end. The buckle 2 is embedded in the groove of the receiving groove 101, and the locking block 21 holds the wire tightly against the inner wall of the receiving groove 101 through the arc-shaped slot 210, thereby fixing the wire. Preferably, the inner side of the arc-shaped slot 210 is provided with a rib 211.

[0032] With the above structure, when the female buckle 1 and the female buckle 2 are fastened together, the protruding rib 211 can press the wire tightly, making the wire clamping more secure.

[0033] Specifically, the female buckle 1 includes an integrally formed outer part 11 and a fixing part 12; the cross-section of the outer part 11 is larger than the cross-section of the fixing part 12, the receiving groove 101 is formed in the fixing part 12, one of the threading notches 102 is provided in the fixing part 12, and the other of the threading notches 102 is provided in the outer part 11.

[0034] In a specific embodiment of this utility model, the female buckle 1 includes two parts: an external part 11 and a fixing part 12. When the power cord assembly structure is assembled on the outer shell of the electric heater, the external part 11 is exposed on the outside of the electric heater shell, while the fixing part 12 is located on the inside of the electric heater shell.

[0035] With the above structure, the larger end of the female buckle 1 located on the outside of the water heater casing acts as a limit, preventing the entire power cord assembly from entering the interior of the water heater casing through the opening. The smaller end of the female buckle 1 located on the inside of the water heater casing allows for a tighter secure fixation of the wire and facilitates keeping the wire neat in a smaller space, thus reducing the internal space occupied.

[0036] Specifically, the outer side of the fixing part 12 is provided with a first groove 121, and the outer side of the sub-buckle 2 is provided with a second groove 22. The first groove 121 and the second groove 22 cooperate to form a snap-fit ​​position when the female buckle 1 and the sub-buckle 2 are fastened together.

[0037] With the above structure, the snap-fit ​​station is inserted into the opening in the water heater casing, which serves to fix it in place, so that the power cord assembly structure can be more firmly fixed to the water heater casing.

[0038] Furthermore, a connecting strip 3 is provided between the female buckle 1 and the female buckle 2, with one end of the connecting strip 3 connected to the female buckle 1 and the other end of the connecting strip 3 connected to the female buckle 2.

[0039] Using the above structure, the female buckle 1 and the female buckle 2 are connected together by the connecting strip 3 to prevent them from being lost during assembly on the production line.

[0040] Furthermore, the female buckle 1, the female buckle 2, and the connecting strip 3 are integrally formed.

[0041] The female buckle 1, the female buckle 2, and the connecting strip 3 are produced using a single mold, eliminating the need for additional operations to connect the female buckle 1 and the connecting strip 3, as well as to connect the female buckle 2 and the connecting strip 3. This facilitates processing and mass production.

[0042] Optionally, the female buckle 1, the female buckle 2, and the connecting strip 3 are made of flame-retardant plastic.

[0043] Flame-retardant plastics include flame-retardant polypropylene, flame-retardant polyethylene, flame-retardant polyvinyl chloride, flame-retardant polystyrene, and flame-retardant nylon, etc., and different levels of fire resistance are achieved by adding halogenated, phosphorus-based, or halogen-free flame retardants. Using flame-retardant plastics allows them to withstand higher temperatures, extending the service life of the aforementioned power cord assembly structure.

[0044] This utility model also provides an electric water heater that uses the above-described power cord assembly structure.

[0045] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A power cord assembly structure characterized by comprising: It includes a female buckle and a female buckle. The female buckle is provided with a receiving groove, and the shape and size of the groove opening are adapted to the female buckle. Both ends of the receiving groove in the X-axis direction are provided with threading notches. The sub-buckle is provided with a locking block, and the side wall of the receiving groove is provided with a buckle groove that matches the shape and size of the locking block. The sub-buckle is embedded in the opening of the receiving groove, and the locking block is snapped into the buckle groove. The locking block is provided with an arc-shaped hole groove, which, when the female buckle and the sub-buckle are fastened together, cooperates with the inner wall of the receiving groove to form a clamping hole. The clamping hole is used to clamp the wire. The sub-buckle cooperates with the wire-passing notch to form a wire-passing hole.

2. The power cord assembly structure according to claim 1, characterized in that, The inner side of the arc-shaped groove is provided with a raised rib.

3. The power cord assembly structure according to claim 1, characterized in that, The female buckle includes an integrally formed outer part and a fixing part; the cross-section of the outer part is larger than the cross-section of the fixing part, the receiving groove is formed in the fixing part, one of the threading notches is provided in the fixing part, and the other of the threading notches is provided in the outer part.

4. The power cord assembly structure according to claim 3, characterized in that, The outer side of the fixing part is provided with a first groove, and the outer side of the sub-buckle is provided with a second groove. The first groove and the second groove cooperate with the female buckle and the sub-buckle to form a snap-fit ​​position.

5. A power cord assembly structure according to claim 1, characterized in that, A connecting strip is provided between the female buckle and the female buckle. One end of the connecting strip is connected to the female buckle, and the other end of the connecting strip is connected to the female buckle.

6. A power cord assembly structure according to claim 5, characterized in that, The female buckle, female buckle, and connecting strip are integrally formed.

7. A power cord assembly structure according to claim 1, characterized in that, The female buckle, female buckle, and connecting strip are made of flame-retardant plastic.

8. An electric water heater, characterized in that, The electric water heater uses the power cord assembly structure as described in any one of claims 1 to 7.