Heat pump water heater with upper cover convenient to disassemble

Abstract

The utility model provides a heat pump water heater with an upper cover convenient to disassemble. The rotary clamping assemblies are arranged on the top of the water tank and the rotary clamping type upper cover, so that the upper cover is convenient to disassemble and reliably fixed. The rotary clamping assembly is composed of a butt-welding screw and a rotary clamping groove fixing piece in a matched mode, the rotary clamping groove fixing piece comprises a guide groove, an arc-shaped limiting protrusion and a limiting groove, the butt-welding screw can be rapidly inserted into the guide groove and slide to the limiting groove along the guide groove through the rotary clamping groove fixing piece, and therefore stable clamping of the upper cover is achieved. The arc-shaped limiting protrusions are arranged, so that the locking effect is enhanced, the rotating clamping groove fixing pieces are prevented from being disengaged from the limiting grooves, and the rotating clamping type upper cover cannot be loosened or displaced in the using process. Compared with a traditional self-tapping screw or welding fixing mode, the structure can complete disassembly and assembly operation without the help of extra tools, equipment is more convenient and fast to install in the environment with limited space, and the maintenance and repair time is effectively shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat pump water heater technical field, concretely is a kind of heat pump water heater of upper cover convenient to disassemble. BACKGROUND

[0002] As a kind of efficient, energy-saving hot water preparation equipment, heat pump water heater has been widely used in family and commercial place.The equipment is usually composed of bottom water storage tank and top water heater host component, wherein host component includes compressor, evaporator, electric control assembly and related pipeline, through the heat pump principle, the heat in environment is transferred to water tank, realizes the preparation of hot water.To protect these key components from the influence of external dust, moisture and accidental damage, heat pump water heater top is usually designed with a cover body, to cover host component.

[0003] In prior art, cover body is generally made of plastic or sheet metal material, and is fixed with water tank by screw, welding or riveting mode as a whole in cylindrical shape.Sheet metal cover body becomes mainstream choice due to its high strength, good durability, mature processing technology (such as punching, roll forming, welding, etc.).However, traditional sheet metal cover body is usually fixed by self-tapping screw (due to installation needs, self-tapping screw needs to be set at certain distance interval on the outer periphery of traditional sheet metal cover body) or welding, which can provide better sealing and stability, but there are many inconveniences in disassembling upper cover during maintenance or repair process.Especially when the equipment is installed in space-limited environment (such as three sides against wall or balcony corner), user often has difficulty in smoothly removing upper cover, and then cannot maintain and repair internal key components such as compressor and evaporator, which increases repair difficulty and cost.Therefore, it is necessary to provide a heat pump water heater with upper cover structure which is convenient to disassemble, easy to maintain and has aesthetic appearance. SUMMARY

[0004] In view of the deficiencies of prior art, the utility model provides a heat pump water heater with upper cover convenient to disassemble, solves the problem that the cover of functional components such as compressor and evaporator of part of heat pump water heater in prior art is difficult to disassemble, and then is difficult to repair or maintain.

[0005] The utility model provides a heat pump water heater with detachable upper cover, which comprises a water tank, a water heater main component, a rotating clamping type upper cover and a top cover, wherein the water heater main component is arranged on the top of the water tank, the rotating clamping type upper cover is detachably arranged on the outside of the water heater main component, and the top cover is arranged on the top of the rotating clamping type upper cover; the top of the water tank and the rotating clamping type upper cover are provided with rotating clamping assemblies; each rotating clamping assembly comprises a predetermined number of clamping screws and a predetermined number of rotating clamping groove fixing members arranged on the top side edges of the rotating clamping type upper cover and the water tank respectively; the rotating clamping groove fixing member comprises a guide groove, an arc-shaped limiting protrusion and a limiting groove; one end of the guide groove is open to allow the clamping screw to be inserted into the guide groove; the limiting groove is connected to the end of the guide groove away from the opening; and the arc-shaped limiting protrusion is arranged at the connection between the guide groove and the limiting groove.

[0006] Preferably, the top of the water tank is provided with a mounting disc, the middle of the mounting disc is provided with the water heater main component, and the top side edges of the mounting disc are provided with the rotating clamping groove fixing members.

[0007] Further, the rotating clamping type upper cover is a circular rotating clamping type upper cover, and the clamping screws are arranged on the inner side of the rotating clamping type upper cover.

[0008] Further, the rotating clamping type upper cover and the top side edges of the water tank are provided with threaded holes, and the threaded holes are detachably provided with fastening screws.

[0009] Further, the utility model also comprises a decorative plate.

[0010] Preferably, the water heater main component comprises a compressor, an evaporator, an electric control assembly and a pipeline assembly arranged on the mounting disc.

[0011] Preferably, the top side edges of the mounting disc are detachably fixed with the rotating clamping groove fixing members through screws.

[0012] Preferably, the arc-shaped limiting protrusion is a semi-cylindrical limiting protrusion.

[0013] Preferably, the width of the guide groove gradually decreases from the opening side to the limiting groove side.

[0014] Further, the clamping screws are arranged on the inner side wall of the rotating clamping type upper cover through welding.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a heat pump water heater convenient to detach upper cover, it contains a water tank, a water heater host component, a rotary clamping type upper cover and a top cap. It is through setting rotary clamping assembly on the water tank top and rotary clamping type upper cover, has realized the convenient disassembly and reliable fixing of upper cover. Rotary clamping assembly is by the cooperation of the butt welding screw rod and rotary clamping groove fixing piece, wherein the rotary clamping groove fixing piece includes guide groove, arc limit protrusion and limit groove, and through the above structure of rotary clamping groove fixing piece makes the butt welding screw rod can be inserted into guide groove and slide along guide groove to limit groove, thereby realizes the stable clamping of upper cover. The setting of arc limit protrusion enhances locking effect, avoids the rotary clamping groove fixing piece to come off limit groove, makes rotary clamping type upper cover not to have the situation of loosening or displacement in the use process. Compared with the traditional fixed mode of self -tapping screw or welding, this structure can complete the dismounting operation without the help of additional tools, especially in the environment (such as balcony or corner) that equipment is installed in the space limited environment is more convenient, effectively shortens the maintenance and overhaul time. At the same time, the concealed design of butt welding screw rod and rotary clamping groove fixing piece eliminates the problem of exposed screw, significantly improves the overall appearance and durability of water heater. Thirdly, the rotary clamping assembly structure of the application has very high general applicability, which can be applied to the upper and lower connection of cylindrical structures with different diameters. Only need to change the structure of sheet metal development drawing according to actual needs, can easily realize the connection of water tank and rotary clamping type upper cover with different sizes, without re-designing and manufacturing mold, greatly saves production cost and time. Therefore, the heat pump water heater convenient to detach upper cover allows users to easily detach the upper cover, making it more convenient to maintain and repair the compressor, evaporator and other water heater host components in the device, and facilitating production. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the heat pump water heater convenient to detach upper cover of the utility model;

[0018] Figure 2 It is the explosion structure schematic diagram of the heat pump water heater convenient to detach upper cover of the utility model;

[0019] Figure 3 It is the structure schematic diagram of the rotary clamping type upper cover of the utility model; Figure 1

[0020] Figure 4 It is the structure schematic diagram of the rotary clamping type upper cover of the utility model;

[0021] Figure 5 It is the connection structure schematic diagram of the installation disc and butt welding screw rod of the utility model.

[0022] Among them:

[0023] ​10-Water tank, 20-Water heater main unit component, 30-Rotating clamping top cover, 40-Top cover, 50-Welded screw, 60-Rotating slot fixing part, 70-Fasting screw, 80-Decorative panel, 11-Mounting disc, 61-Guide groove, 62-Arc-shaped limiting protrusion, 63-Limiting groove. Detailed Implementation

[0024] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] See Figures 1-5 This embodiment provides a heat pump water heater with an easily removable top cover, comprising a water tank 10, a water heater main unit 20, a rotating and locking top cover 30, and a top cover 40. The water heater main unit 20 is disposed on the top of the water tank 10. The rotating and locking top cover 30 is detachably disposed on the outside of the water heater main unit 20. The top cover 40 is disposed on the top of the rotating and locking top cover 30. A rotating and locking assembly is provided on the top of the water tank 10 and the rotating and locking top cover 30. The rotating and locking assembly includes... The device includes a predetermined number of spot-welded screws 50 and a predetermined number of rotating slot fixing members 60 respectively disposed on the top side of the rotating clamping upper cover 30 and the water tank 10. The rotating slot fixing member 60 includes a guide groove 61, an arc-shaped limiting protrusion 62 and a limiting groove 63. One end of the guide groove 61 is open for the insertion of the spot-welded screws 50. The limiting groove 63 is connected to the end of the guide groove 61 away from the opening. The arc-shaped limiting protrusion 62 is disposed at the connection between the guide groove 61 and the limiting groove 63.

[0026] Preferably, the top of the water tank 10 is configured as a mounting disc 11, the middle of the mounting disc 11 is configured as the water heater main unit 20, and the top side of the mounting disc 11 is provided with the rotating slot fixing member 60. Meanwhile, the rotating clamping upper cover 30 is an annular rotating clamping upper cover 30, and the welded screw 50 is provided on the inner side of the rotating clamping upper cover 30. It should be noted that in this embodiment, the mounting disc 11 is preferably a plastic disc. Of course, other materials are also acceptable, and will not be elaborated further here.

[0027] Furthermore, both the rotary locking upper cover 30 and the top side of the water tank 10 are provided with threaded holes, and fastening screws 70 are detachably installed on the threaded holes. After the rotary locking is completed, the connection between the rotary locking upper cover 30 and the water tank 10 is further consolidated by screwing in the fastening screws 70, preventing the upper cover from loosening or falling off due to user misoperation (such as forcefully rotating clockwise), thus improving the safety and reliability of the product.

[0028] It should be noted that the assembly process of the rotary locking upper cover 30 of the heat pump water heater with easy-to-remove upper cover of this application is as follows: First, the rotary locking upper cover 30 is inserted from the top, so that its bottom is partially connected to the mounting disc 11. At this time, the spot-welded screw 50 inside the rotary locking upper cover 30 cooperates with the rotary locking groove fixing part 60 on the mounting disc 11. During assembly, the spot-welded screw 50 inside the upper cover is aligned with the position of the rotary locking groove fixing part 60 on the mounting disc 11. Next, the upper cover is rotated counterclockwise so that the spot-welded screw 50 enters the position of the rotary guide groove 61 of the mounting disc 11. As the rotation continues, the spot-welded screw 50 passes through the guide groove 61 and slides past the arc-shaped limiting protrusion 62 to reach the limiting groove 63. At this time, the rotary locking upper cover 30 is fixed. Due to the setting of the arc-shaped limiting protrusion 62, the spot-welded screw 50 will not rotate clockwise, thereby realizing the tight installation of the rotary locking upper cover 30. Finally, screw the two fastening screws 70 into the threaded holes provided on the top side of the rotary locking upper cover 30 and the water tank 10 to further secure the upper cover and prevent it from loosening due to the user's forceful clockwise rotation. It should be noted that the threaded holes are located on one side to facilitate the removal of the fastening screws 70.

[0029] Preferably, it also includes a decorative panel 80. The decorative panel 80 can effectively cover the screw heads of the fastening screws 70, making the appearance of the rotating clamping top cover 30 more integrated and concise, avoiding the visual abruptness that may be caused by exposed screw heads, thereby enhancing the overall aesthetics of the heat pump water heater and meeting the aesthetic needs of modern homes and commercial spaces.

[0030] Preferably, the water heater main unit 20 includes a compressor, an evaporator, an electrical control assembly, and a piping assembly disposed on the mounting disc 11.

[0031] Preferably, the rotating slot fixing member 60 is detachably fixed to the top side of the mounting disc 11 by screws. The detachable fixing method of the rotating slot fixing member 60 gives the structure high versatility and applicability. Specifically, users can adjust the number of rotating slot fixing members 60 according to different usage scenarios and needs without changing the plastic mold; simply fix the additional rotating slot fixing members 60 to the mounting disc 11 with screws. This design not only simplifies the installation and disassembly process but also reduces production costs. During production, only corresponding screw holes need to be pre-set on the mounting disc 11; during use, the rotating slot fixing member 60 is aligned with the screw holes for installation, and the rotating clamping upper cover 30 is internally welded with a spot-welded screw 50 to achieve proper installation.

[0032] Of course, the rotating slot fixing part 60 can also be directly integrally formed with the mounting disc 11 during production, and its function is the same, so it will not be described in detail here.

[0033] Preferably, the arc-shaped limiting protrusion 62 is a semi-cylindrical limiting protrusion. The semi-cylindrical limiting protrusion design guides the spot-welded screw 50 smoothly across the arc-shaped limiting protrusion 62 during installation, reducing jamming and ensuring smooth installation. The clamping action can be completed without excessive force, improving the convenience and efficiency of installation. Simultaneously, when disassembly is required, the user can apply an appropriate clockwise rotational force to allow the spot-welded screw 50 to smoothly pass over the arc-shaped limiting protrusion 62, thus achieving easy removal. It should be noted that the semi-cylindrical limiting protrusion can be located at the top or bottom, and the distance between the semi-cylindrical limiting protrusion and the other side of the rotating slot fixing member 60 is slightly larger than the diameter of the spot-welded screw 50.

[0034] Preferably, the width of the guide groove 61 gradually decreases from the open side to the limiting groove 63 side. The wider opening of the guide groove 61 provides a larger initial guiding range for the weld screw 50, eliminating the need for precise alignment during installation, significantly reducing operational difficulty and improving assembly efficiency. As the weld screw 50 slides along the guide groove 61, the groove width gradually decreases, providing progressively stronger constraint force to the screw, achieving a gradual locking effect and ensuring a stable installation process while preventing misalignment. Simultaneously, this tapering design naturally connects with the transition of the limiting groove 63, enhancing limiting reliability and effectively preventing the weld screw 50 from accidentally detaching due to external forces. Furthermore, during disassembly, the weld screw 50 slides in the opposite direction along the guide groove 61; as the groove width gradually widens, the resistance gradually decreases, making disassembly easier and more convenient.

[0035] Furthermore, the spot-welded screw 50 is welded to the inner wall of the rotary clamping upper cover 30. This ensures a reliable connection between the spot-welded screw 50 and the rotary clamping upper cover 30, provides high shear and tensile strength resistance, maintains stability during long-term use, and is not prone to loosening or falling off.

[0036] It should also be noted that the rotary clamping upper cover 30 is usually made of 0.6 or 0.8 mm thin plate, and the material can be stainless steel, sprayed steel plate or color steel plate. Its manufacturing process includes flat plate cutting, punching, spot welding of screw 50, rolling, butt welding or riveting, and forming.

[0037] This utility model provides a heat pump water heater with an easily removable top cover, comprising a water tank 10, a water heater main unit 20, a rotary locking top cover 30, and a top cover 40. The top cover is easily removable and reliably secured by a rotary locking assembly installed on a mounting disc 11 on the top of the water tank 10 and on the rotary locking top cover 30. The rotary locking assembly consists of a welded screw 50 and a rotary locking groove fixing member 60. The rotary locking groove fixing member 60 includes a guide groove 61, an arc-shaped limiting protrusion 62, and a limiting groove 63. This structure allows the welded screw 50 to quickly insert into the guide groove 61 and slide along it to the limiting groove 63, thus achieving stable locking of the top cover. The arc-shaped limiting protrusion 62 enhances the locking effect, preventing the rotary locking groove fixing member 60 from dislodging from the limiting groove 63, ensuring that the rotary locking top cover 30 will not loosen or shift during use. Compared to traditional methods of fixing with self-tapping screws or welding, this structure allows for assembly and disassembly without the need for additional tools, making it particularly convenient in space-constrained environments (such as balconies or corners), effectively shortening maintenance and repair time. Simultaneously, the concealed design of the welded screw 50 and the rotating slot fastener 60 eliminates the problem of exposed screws, significantly improving the overall aesthetics and durability of the water heater. Furthermore, the rotating clamping assembly structure of this application has extremely high versatility. It can be applied to the connection of cylindrical structures of different diameters. By simply modifying the sheet metal unfolding diagram according to actual needs, connections of cylindrical bodies of different sizes can be easily achieved without redesigning and manufacturing molds, greatly saving production costs and time. Traditional plastic connection structures typically require different molds designed for each size of cylinder, which not only increases production costs but also limits connection flexibility. The rotating clamping assembly structure of this application effectively avoids this problem; it can adapt to cylindrical bodies of different sizes through simple adjustments to the sheet metal unfolding diagram, without the need for additional mold investment, thus demonstrating significant cost advantages and flexibility in practical applications. Therefore, this heat pump water heater with an easy-to-remove top cover allows users to easily remove the top cover, making it more convenient to maintain and repair the main components 20 of the water heater, such as the compressor and evaporator, and also facilitating production.

[0038] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model patent application shall still fall within the scope of the present utility model.

Claims

1. A heat pump water heater with an easily removable top cover, comprising a water tank, a water heater main unit, a rotating and snap-on top cover, and a top cover, wherein the water heater main unit is disposed on the top of the water tank, the rotating and snap-on top cover is detachably disposed on the outside of the water heater main unit, and the top cover is disposed on the top of the rotating and snap-on top cover, characterized in that: The top of the water tank and the rotating clamping upper cover are provided with a rotating clamping assembly. The rotating clamping assembly includes a predetermined number of spot-welded screws and a predetermined number of rotating slot fixing members respectively disposed on the top side of the rotating clamping upper cover and the water tank. The rotating slot fixing member includes a guide groove, an arc-shaped limiting protrusion and a limiting groove. One end of the guide groove is open for the spot-welded screws to be inserted. The end of the guide groove away from the opening is connected to the limiting groove. The arc-shaped limiting protrusion is disposed at the connection between the guide groove and the limiting groove.

2. The heat pump water heater with easily removable top cover as described in claim 1, characterized in that, The top of the water tank is configured as a mounting disc, the middle part of the mounting disc is configured as the main unit of the water heater, and the top side of the mounting disc is configured with the rotating slot fixing component.

3. The heat pump water heater with easily removable top cover as described in claim 2, characterized in that, The rotating clamping upper cover is a circular rotating clamping upper cover, and the welded screw is provided on the inner side of the rotating clamping upper cover.

4. The heat pump water heater with easily removable top cover as described in claim 3, characterized in that, Both the rotating clamping top cover and the top side of the water tank are provided with threaded holes, and fastening screws are detachably installed on the threaded holes.

5. The heat pump water heater with easily removable top cover as described in claim 4, characterized in that, It also includes a decorative panel.

6. The heat pump water heater with easily removable top cover as described in claim 2, characterized in that, The main unit of the water heater includes a compressor, an evaporator, an electrical control assembly, and a piping assembly mounted on the mounting disc.

7. The heat pump water heater with easily removable top cover as described in claim 2, characterized in that, The rotating slot fixing component is detachably fixed to the top side of the mounting disc by screws.

8. The heat pump water heater with easily removable top cover as described in claim 1, characterized in that, The arc-shaped limiting protrusion is a semi-cylindrical limiting protrusion.

9. The heat pump water heater with easily removable top cover as described in claim 1, characterized in that, The width of the guide groove gradually decreases from the opening side to the limiting groove side.

10. The heat pump water heater with easily removable top cover as described in claim 3, characterized in that, The spot-welded screw is welded to the inner wall of the rotary clamping upper cover.

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