Head assembly of heat-pump water heater and heat-pump water heater

Abstract

The utility model relates to the technical field of heat pump water heaters, and provides a machine head assembly of a heat pump water heater and the heat pump water heater, the machine head assembly comprises a base and an evaporator, the evaporator is mounted on the base; a gap is formed between the bottom of the evaporator and the base; the wind shield is arranged corresponding to the gap. According to the machine head assembly of the heat-pump water heater and the heat-pump water heater, the air blocking piece is arranged corresponding to the gap, and air can be prevented from directly penetrating through the gap; due to the effect of the air blocking piece, air entering the water heater passes through the surface of the evaporator, absorption of the evaporator to external low-temperature heat is facilitated, and the air entering the water heater is prevented from directly penetrating through a gap between the evaporator and the base.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pump water heaters, in particular to a head assembly of a heat pump water heater and a heat pump water heater. Background Art

[0002] The existing heat pump water heater has a head assembly including a housing, a water tray, an evaporator and other parts. The evaporator is located above the water tray, and the housing is provided with an air inlet and an air outlet. When working, the wind enters the housing through the air inlet, directly exchanges heat with the evaporator, and is discharged through the air outlet after the heat exchange. Since there is a gap between the evaporator and the water tray, a small amount of wind passes directly through the gap between the evaporator and the water tray, affecting the evaporator's absorption of low-temperature heat from the outside. Summary of the invention

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a head assembly of a heat pump water heater and a heat pump water heater, which is conducive to the evaporator absorbing low-temperature heat from the outside.

[0004] The utility model provides a head assembly of a heat pump water heater, comprising:

[0005] A base, provided with a plurality of wind shielding members;

[0006] An evaporator is mounted on the base; a gap is formed between the bottom of the evaporator and the base;

[0007] The wind shield is arranged corresponding to the gap.

[0008] According to an embodiment of the utility model, at least two wind shields arranged side by side are arranged in the base, the evaporator includes a plurality of evaporator units, and the wind shields correspond to the evaporator units one by one.

[0009] According to one embodiment of the utility model, the base includes a water receiving tray, which is located below the evaporator; a water receiving trough is formed inside the water receiving tray, the wind shield is arranged in the water receiving trough, a water guiding surface is formed at the bottom of the water receiving trough, and the water receiving trough is provided with a drainage hole, and the water guiding surface is used to guide the water in the water receiving trough to the drainage hole.

[0010] According to an embodiment of the utility model, the wind shielding member is a wind shielding rib, and the drainage hole is located at at least one end of the wind shielding member.

[0011] According to an embodiment of the present invention, the water receiving tray is integrally formed with the base.

[0012] According to an embodiment of the present utility model, the evaporator and the wind shield are both arc-shaped.

[0013] According to an embodiment of the utility model, a fan is further included, and the evaporator is bent to form an installation cavity of the fan.

[0014] According to an embodiment of the utility model, it also includes a fan bracket, and the fan is installed on the fan bracket; the fan bracket is connected to the base; the base includes a chassis, and a disassembly hole of the fan is formed on the chassis, and the edge of the disassembly hole forms an abutment wall, and the abutment wall is at least partially in contact with the fan bracket.

[0015] According to an embodiment of the utility model, the fan support includes a base plate, and the lower end of the base forms a fixed step; the edge of the base plate matches the fixed step.

[0016] The utility model also provides a heat pump water heater, comprising a head assembly of the heat pump water heater.

[0017] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0018] The wind shield is set corresponding to the gap, which can limit the wind from passing directly through the gap; since the wind shield has a wind shielding effect, the wind entering the water heater passes through the surface of the evaporator, which is beneficial for the evaporator to absorb the low-temperature heat from the outside.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the base of the head assembly of the heat pump water heater provided by the embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of a head assembly of a heat pump water heater provided by an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the heat pump water heater provided by the embodiment of the utility model;

[0024] Figure 4It is a three-dimensional structural schematic diagram of a fan bracket of a head assembly of a heat pump water heater provided by an embodiment of the utility model;

[0025] Figure 5 It is another three-dimensional structural schematic diagram of the base of the head assembly of the heat pump water heater provided by an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100, base; 110, water tray; 111, water trough; 112, wind shield; 120, water guide surface; 130, drainage hole; 140, fixed step; 141, positioning column; 150, chassis; 151, disassembly hole; 152, abutment wall; 160, chassis cover; 170, exhaust port;

[0028] 200, evaporator; 210, evaporator unit; 220, installation cavity;

[0029] 300, fan;

[0030] 400, fan bracket; 410, bottom plate; 411, positioning hole; 420, bracket body; 430, support rod; 431, connecting block;

[0031] 500, top cover;

[0032] 600. Hoarding; 610. Air inlet. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0036] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] Heat pump water heaters, also known as "air source heat pump water heaters" and "air energy water heaters", absorb low-temperature heat from the air, gasify the refrigerant in the evaporator, and turn it into low-temperature steam. The low-temperature steam is then compressed by a compressor and converted into high-temperature, high-pressure gas, and then the compressed high-temperature heat is converted into water heating by a heat exchanger. Therefore, compared with traditional electric water heaters and gas water heaters, heat pump water heaters have many advantages such as high efficiency, energy saving, environmental protection, and safety.

[0039] During the use of the heat pump water heater, the wind enters the shell from the air inlet, directly exchanges heat with the evaporator, and then is discharged from the air outlet. Since there is a gap between the evaporator and the water tray, a small amount of wind passes directly through the gap between the evaporator and the water tray, affecting the evaporator's absorption of low-temperature heat from the outside.

[0040] See also Figures 1 to 2 The first embodiment of the utility model provides a head assembly of a heat pump water heater, including a base 100 and an evaporator 200, the base 100 is provided with a plurality of wind shields 112; the evaporator 200 is installed on the base 100; a gap is formed between the bottom of the evaporator 200 and the base 100; the wind shield 112 is arranged corresponding to the gap.

[0041] The wind shield 112 is set corresponding to the gap, which can limit the wind from passing directly through the gap; due to the action of the wind shield 112, the wind entering the water heater passes through the surface of the evaporator 200, which is beneficial to the evaporator 200's absorption of low-temperature heat from the outside, and avoids the wind entering the water heater from passing directly through the gap between the evaporator 200 and the base 100.

[0042] It is understandable that the wind shield 112 may partially block the gap or completely block the gap to reduce the amount of wind passing through the gap, so as to improve the heat exchange effect between the wind entering the water heater and the evaporator 200.

[0043] It is understandable that, for the convenience of processing, the windshield 112 and the base 100 are integrally formed by injection molding. Alternatively, in some examples, the windshield 112 can also be connected to the base 100 by threaded connection or clamping, and the embodiment of the utility model does not impose any particular limitation on this.

[0044] In one embodiment, the wind shield 112 is strip-shaped to fit the shape of the gap to achieve a better wind shielding effect; in other embodiments, the wind shield 112 may also be a plurality of wind shield blocks arranged along the bottom of the evaporator 200; the wind shield 112 may be a thin sheet, which can save materials and space while achieving a wind shielding effect; of course, the wind shield 112 may also be other shapes, and the embodiment of the utility model does not impose any particular limitation on the specific shape of the wind shield 112.

[0045] In one embodiment, at least two wind shields 112 are arranged side by side in the base 100. Figure 2 As shown, the evaporator 200 includes a plurality of evaporator units 210 arranged in layers, and the wind shielding members 112 correspond to the evaporator units 210 one by one.

[0046] Multiple evaporator units 210 increase the heat exchange area, can better absorb low-temperature heat from the outside, and transfer it to the refrigerant, thereby improving the efficiency of the evaporator 200. Corresponding to the multiple evaporator units 210, multiple windshields 112 are provided to further improve the windshield effect; multi-layer evaporator units 210 are usually implemented by parallel arrangement, which can not only increase the heat exchange area but also save space. Correspondingly, at least two windshields 112 are arranged side by side; for example, the evaporator 200 is a double-layer evaporator, including two evaporator units 210 arranged side by side, and the evaporator units 210 include heat exchange tubes, and fins are arranged between the heat exchange tubes.

[0047] See also Figure 3 The head assembly of the heat pump water heater of the embodiment of the utility model also includes a top cover 500 and a surrounding plate 600, and the surrounding plate 600 is connected between the top cover 500 and the base 100; an air inlet 610 is arranged on the surrounding plate 600, and the air inlet 610 is arranged corresponding to the evaporator 200, so that the wind at the air inlet 610 directly exchanges heat with the evaporator 200, which is beneficial for the evaporator 200 to absorb external heat; an exhaust port 170 is arranged on the base 100, and the wind after heat exchange flows out from the exhaust port 170 of the base 100, so as to prevent the wind with water vapor from being sprayed in the horizontal direction and sprayed onto the user or the wall.

[0048] See also Figure 1 to Figure 2 In one embodiment, the base 100 includes a water receiving tray 110, which is located below the evaporator 200; a water receiving groove 111 is formed inside the water receiving tray 110, a water guiding surface 120 is formed at the bottom of the water receiving groove 111, and a drainage hole 130 is opened in the water receiving groove 111, and the water guiding surface 120 is used to guide the water in the water receiving groove 111 to the drainage hole 130.

[0049] The water receiving tray 110 is located below the evaporator 200 so as to receive condensed water condensed on the surface of the evaporator 200; a water receiving groove 111 is formed inside the water receiving tray 110, and a wind shield 112 is arranged in the water receiving groove 111. The gap between the evaporator 200 and the base 100 is the gap between the bottom of the evaporator 200 and the bottom of the water receiving groove 111.

[0050] A water guiding surface 120 is formed at the bottom of the water receiving trough 111, and the water guiding surface 120 is used to guide the water in the water receiving trough 111 to the drainage hole 130; generally, the water guiding surface 120 is inclined relative to the horizontal plane to guide the water in the water receiving trough 111 to the drainage hole 130; there is generally one drainage hole 130 to facilitate the collection of the discharged water. Of course, it is not ruled out that the drainage holes 130 are set to two or three, etc., to improve the drainage efficiency; the drainage hole 130 can be set at the lowest point of the water guiding surface 120 to facilitate the discharge of condensed water from the evaporator 200; the drainage hole 130 can also be set in a depression of the water guiding surface 120 to prevent water accumulation; the embodiment of the utility model does not impose any special restrictions on the position and distribution of the drainage holes 130.

[0051] In addition, in the embodiment of the utility model, the wind shield 112 can contact the fins of the evaporator unit 210 to reduce the amount of wind passing through the gap through the wind shield 112. At the same time, the wind shield 112 can guide the condensed water on the surface of the evaporator 200 to the base 100. Therefore, the wind shield 112 not only has a wind shielding effect, but also guides the condensed water generated by the evaporator 200. Of course, in other embodiments, the wind shield 112 can also be staggered with the evaporator 200, and the utility model does not impose any special restrictions on this.

[0052] See also Figure 1 In one embodiment, the wind shield 112 is a wind shield rib, and the drainage hole 130 is located at at least one end of the wind shield 112. The condensed water is guided to the drainage hole 130 through the wind shield 112, so that the condensed water generated by the evaporator 200 can be discharged in time to avoid water accumulation inside the water heater.

[0053] Two drainage holes 130 can be provided, and the two drainage holes 130 are distributed at both ends of the wind shield 112. Through the guidance of the wind shield ribs and the water guide surface 120, the condensed water of the evaporator 200 is discharged to prevent water accumulation. Of course, the number and distribution of the drainage holes 130 can be set according to actual conditions, and the embodiment of the utility model is not limited to this.

[0054] In one embodiment, the water receiving tray 110 is integrally formed with the base 100 .

[0055] It is understandable that the water tray 110 is integrally formed on the base 100 by injection molding, which can reduce the processing flow and improve efficiency. Alternatively, in some examples, the water tray 110 can also be detachably mounted on the base 100 to facilitate cleaning of the water tray 110.

[0056] See also Figure 2In one embodiment, the evaporator 200 and the wind shield 112 are both arc-shaped. The arc-shaped evaporator 200 increases the heat exchange area of ​​the evaporator 200, thereby improving the heat exchange efficiency, which is beneficial for the evaporator 200 to absorb low-temperature heat from the outside; correspondingly, the wind shield 112 is arc-shaped to fit the shape of the evaporator 200, which can minimize the air passing through the gap between the evaporator 200 and the base 100, so that the wind entering the water heater passes through the surface of the evaporator 200 for heat exchange.

[0057] See also Figure 2 The embodiment of the utility model also includes a fan 300. The evaporator 200 is bent to form an installation cavity 220 for the fan 300, which can save space and make the structure of the water heater more compact. The fan 300 works inside the installation cavity 220 and can drive the air circulation in the installation cavity 220, that is, drive the air flow on the surface of the evaporator 200, so as to improve the heat exchange effect between the air and the evaporator 200 and enhance the absorption of low-temperature heat from the outside by the evaporator 200.

[0058] The embodiment of the utility model further comprises a fan bracket 400, and the fan 300 is mounted on the fan bracket 400; the fan bracket 400 is connected to the base 100; the base 100 comprises a chassis 150, such as Figure 5 As shown, a disassembly hole 151 for the fan 300 is formed on the chassis 150 , and an abutment wall 152 is formed at the edge of the disassembly hole 151 . The abutment wall 152 is at least partially in contact with the fan bracket 400 .

[0059] The disassembly hole 151 can facilitate the disassembly and installation of the fan 300. When the fan 300 is inspected and repaired, the fan 300 can be directly disassembled and assembled through the disassembly hole 151, eliminating the need to disassemble the entire water heater, which is convenient for inspection and repair. The edge of the disassembly hole 151 forms an abutment wall 152, and the abutment wall 152 at least partially fits with the fan bracket 400 to prevent wind from directly flowing out of the gap between the fan bracket 400 and the base 100. Furthermore, the abutment wall 152 can support the fan bracket 400 to prevent the fan bracket 400 from shaking and affecting the operation of the fan 300. In addition, since the water receiving tray 110 is provided on the base 100, the abutment wall 152 can isolate the water receiving tray 110 to prevent the water in the water receiving tray 110 from flowing out of the disassembly hole 151.

[0060] Also, see Figure 2The base 100 also includes a chassis cover 160, which can be detachably installed on the disassembly hole 151, and the chassis cover 160 can realize the opening and closing of the disassembly hole 151; the shape of the chassis cover 160 can match the disassembly hole 151 so as to close the disassembly hole 151; the shape of the chassis cover 160 can also not match the disassembly hole 151, and the disassembly hole 151 can be opened and closed by disassembling the chassis cover 160; the chassis cover 160 can be directly connected to the base 100, or it can be indirectly connected to the base 100, for example, the chassis cover 160 can be installed on the fan bracket 400.

[0061] See also Figure 4 and Figure 5 In one embodiment, the fan bracket 400 includes a bottom plate 410, and a fixed step 140 is formed at the lower end of the base 100; the edge of the bottom plate 410 matches the fixed step 140. During installation, the bottom plate 410 of the fan bracket 400 is abutted against the fixed step 140 from the lower end of the base 100 to complete the assembly. During disassembly, the fan bracket 400 can be disassembled through the disassembly hole 151 without disassembling the entire machine; the fixed step 140 plays a role in fixing the fan bracket 400. In addition, the fixed step 140 plays a role in limiting the fan bracket 400, limiting the fan bracket 400 from continuing to move, so that the fan bracket 400 is fixed at an appropriate height, so that the fan is installed in the installation cavity 220.

[0062] See also Figure 4 and Figure 5 , a positioning column 141 is provided on the fixed step 140, a positioning hole 411 is provided on the bottom plate 410, and the positioning column 141 is penetrated in the positioning hole 411; the cooperation between the positioning column 141 and the positioning hole 411 can guide the fan bracket 400 to be accurately installed on the fixed step 140, and avoid the fan bracket 400 and the base 100 from being misaligned. A first threaded hole can be provided on the bottom plate 410, and a second threaded hole can be provided on the fixed step 140. The embodiment of the utility model also includes a connecting screw, which is sequentially penetrated in the first threaded hole and the second threaded hole to complete the connection between the bottom plate 410 and the fixed step 140; in other embodiments, the bottom plate 410 and the fixed step 140 can also be connected by means of snap connection or the like.

[0063] For details, please refer to Figure 4The fan bracket 400 also includes a bracket body 420, which is connected to the base plate 410, and the bracket body 420 and the base plate 410 are relatively vertically arranged; a support rod 430 is fixedly arranged on the bracket body 420, and the support rod 430 is used to fix the fan 300; the support rod 430 is provided with a connecting block 431 on the side facing the bracket body 420, and the connecting block 431 is fixedly connected to the bracket body 420 to further fix the support rod 430 to prevent the support rod 430 from shaking during the operation of the fan 300.

[0064] The second aspect of the present invention also provides a heat pump water heater, including a head assembly of the heat pump water heater.

[0065] It can be understood that if the head assembly of the heat pump water heater has the beneficial effects of the above embodiments, then the heat pump water heater correspondingly has the beneficial effects of the above embodiments. Its specific implementation method can refer to the above embodiments, and this application will not go into details.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A head assembly of a heat pump water heater, characterized in that: include: The base (100) is provided with a plurality of wind shielding members (112); An evaporator (200) is mounted on the base (100); a gap is formed between the bottom of the evaporator (200) and the base (100); The wind shield (112) is arranged corresponding to the gap.

2. The head assembly of the heat pump water heater according to claim 1, characterized in that: At least two wind shields (112) arranged side by side are arranged in the base (100); the evaporator (200) comprises a plurality of evaporator units (210); and the wind shields (112) and the evaporator units (210) correspond one to one.

3. The head assembly of the heat pump water heater according to claim 1, characterized in that: The base (100) comprises a water receiving tray (110), wherein the water receiving tray (110) is located below the evaporator (200); a water receiving groove (111) is formed inside the water receiving tray (110), the wind shield (112) is arranged in the water receiving groove (111), a water guide surface (120) is formed at the bottom of the water receiving groove (111), and the water receiving groove (111) is provided with a drainage hole (130), and the water guide surface (120) is used to guide water in the water receiving groove (111) to the drainage hole (130).

4. The head assembly of the heat pump water heater according to claim 3, characterized in that: The wind shielding member (112) is a wind shielding rib, and the drainage hole (130) is located at at least one end of the wind shielding member (112).

5. The head assembly of the heat pump water heater according to claim 3, characterized in that: The water receiving tray (110) is integrally formed on the base (100).

6. The head assembly of the heat pump water heater according to any one of claims 1 to 5, characterized in that: The evaporator (200) and the wind shield (112) are both arc-shaped.

7. The head assembly of the heat pump water heater according to any one of claims 1 to 5, characterized in that: It also includes a fan (300), and the evaporator (200) is bent to form a mounting cavity (220) of the fan (300).

8. The head assembly of the heat pump water heater according to claim 7, characterized in that: It also comprises a fan bracket (400), the fan (300) being mounted on the fan bracket (400); the fan bracket (400) being connected to the base (100); the base (100) comprising a chassis (150), a disassembly hole (151) for the fan (300) being formed on the chassis (150), an abutment wall (152) being formed at the edge of the disassembly hole (151), and the abutment wall (152) being at least partially in contact with the fan bracket (400).

9. The head assembly of the heat pump water heater according to claim 8, characterized in that: The fan support (400) comprises a bottom plate (410), and a fixing step (140) is formed at the lower end of the base (100); the edge of the bottom plate (410) matches the fixing step (140).

10. A heat pump water heater, characterized in that: The invention comprises a head assembly of a heat pump water heater according to any one of claims 1 to 9.

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