Head unit assembly and heat pump water heater

Abstract

Provided are a head unit assembly and a heat pump water heater. The head unit assembly comprises: a bearing base (100); an air channel lower cover (200), fixedly arranged on the bearing base (100); and an air channel upper cover module (300), comprising an air channel upper cover (310), a motor (320), and a blower wheel (330), wherein the air channel upper cover (310) is located on the side of the air channel lower cover (200) away from the bearing base (100) and is fixedly arranged on the air channel lower cover (200) facing towards the bearing base (100), the motor (320) is fixedly arranged on the air channel upper cover (310), and the blower wheel (330) is located in the air channel upper cover (310) and is in transmitting connection with a rotating shaft of the motor (320).

Description

Head assembly and heat pump water heater

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 31, 2023, with application number 2023109585429 and invention name “A head assembly and heat pump water heater”, and the Chinese patent application filed with the China Patent Office on July 31, 2023, with application number 2023220475737 and invention name “A head assembly and heat pump water heater”, the contents of which should be understood as incorporated into this application by reference. Technical Field

[0002] The present application relates to but is not limited to the technical field of electrical equipment, and specifically refers to a head assembly and a heat pump water heater. Background Art

[0003] The heat pump water heater provided by the related art has the highest probability of repair of the electronic control module of the head assembly, so the electronic control module is usually designed to be located at the front of the head assembly (away from the mounting wall), the fan module is designed to be located at the rear of the head assembly (close to the mounting wall), the heat exchanger is located between the electronic control module and the fan module, and the compressor is located on the side of the heat exchanger facing away from the fan module. The fan module includes a duct rear cover, a motor, a fan wheel and a duct front cover. The electronic control module, the compressor, the heat exchanger and the duct front cover are arranged in sequence from front to back and are all fixed to the water receiving tray at the bottom of the head assembly. The motor is fixed in the duct front cover. The fan wheel is located at the rear side of the motor and is mounted on the rotating shaft of the motor. The duct rear cover is located at the rear side of the duct front cover and is fixed to the duct front cover from back to front by screws. The duct rear cover and the duct front cover together form an airflow duct. The external covers of the electronic control module, the compressor, the heat exchanger and the fan module are equipped with decorative covers.

[0004] When the motor fails, maintenance personnel need to drain the water in the heat pump water heater first, then remove the heat pump water heater from the wall, place it on the ground, and then remove the decorative cover, air duct back cover and wind wheel in turn before removing the motor for repair or replacement. The process of disassembling and installing the motor is complicated and difficult.

[0005] Summary of the Invention

[0006] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0007] The head assembly proposed in an embodiment of the present invention is used for a heat pump water heater, and the head assembly includes: a supporting base; a duct lower cover, fixed to the supporting base; and an duct upper cover module, including an duct upper cover, a motor and a wind wheel. The duct upper cover is located on the side of the duct lower cover away from the supporting base and is fixed to the duct lower cover facing the supporting base. The motor is fixed to the duct upper cover. The wind wheel is located inside the duct upper cover and is transmission-connected to the rotating shaft of the motor.

[0008] In some exemplary embodiments, the upper cover of the air duct is provided with a through hole, and the lower cover of the air duct is provided with a screw hole, the through hole is located on the side of the screw hole away from the supporting base, and the threaded section of the screw passes through the through hole from the side of the upper cover of the air duct away from the lower cover of the air duct and is screwed into the screw hole.

[0009] In some exemplary embodiments, the motor is located inside the air duct upper cover.

[0010] In some exemplary embodiments, the supporting substrate is a water receiving tray.

[0011] In some exemplary embodiments, the head assembly further includes: a decorative cover mounted on the outside of the air duct upper cover module and the air duct lower cover.

[0012] In some exemplary embodiments, the decorative cover includes: a peripheral wall, which is sleeved over the air duct upper cover module and the air duct lower cover; and an end cover, which is located at one end of the peripheral wall away from the supporting base and is detachably connected to the peripheral wall.

[0013] In some exemplary embodiments, the air duct upper cover and the air duct lower cover together form an air duct, the end cover is provided with a first air outlet, and the outlet of the air duct is connected to the outer side of the decorative cover through the first air outlet.

[0014] In some exemplary embodiments, the duct upper cover and the duct lower cover together form a wind-through duct, the end cover is provided with a second air outlet, and the inlet of the wind-through duct is connected to the outer side of the decorative cover through the second air outlet.

[0015] In some exemplary embodiments, the head assembly further includes: a heat exchanger, located between the inlet of the air duct and the second air outlet, and fixed to the supporting base.

[0016] In some exemplary embodiments, the head assembly further includes: a compressor, which is located on a side of the heat exchanger away from the air duct and is fixed to the supporting base.

[0017] In some exemplary embodiments, the head assembly further includes: a control module, which is located on a side of the heat exchanger away from the air duct and is fixed to the supporting base.

[0018] The heat pump water heater provided in an embodiment of the present invention comprises a water tank assembly and the head assembly described in any one of the above embodiments, wherein the supporting base is fixedly mounted on the water tank assembly.

[0019] According to the technical solution proposed in the embodiment of the present invention, the head assembly is used for the heat pump water heater, and the head assembly is arranged on the upper part of the water tank assembly of the heat pump water heater. When the motor is damaged, there is no need to dismantle the heat pump water heater on the mounting wall. It is only necessary to dismantle the air duct cover module from bottom to top on the head assembly, and then disassemble the air duct cover module on the ground to dismantle the motor. The process of disassembling and assembling the motor is simple and easy.

[0020] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

[0021] Summary of the Figures

[0022] FIG1 is a schematic diagram of a partially exploded structure of a handpiece assembly according to some embodiments;

[0023] FIG2 is another partial exploded structural schematic diagram of the head assembly shown in FIG1 ;

[0024] FIG3 is a schematic diagram of the exploded structure of the head assembly shown in FIG1 ;

[0025] FIG4 is a schematic diagram of the exploded structure of the air duct cover module in FIG1 .

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 100 bearing base, 200 air duct lower cover, 300 air duct upper cover module, 310 air duct upper cover, 311 outlet of the air duct, 320 motor, 330 wind wheel, 400 end cover, 410 first air outlet, 420 second air outlet, 500 peripheral wall, 600 heat exchanger.

[0028] Details

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] The present application also provides a head assembly, the process of disassembling and assembling the motor of which is simple and has little difficulty.

[0032] The present application also provides a heat pump water heater.

[0033] The heat pump water heater provided in the embodiment of the present invention includes a water tank assembly and a head assembly. The water tank assembly is located below the head assembly and is assembled together with the head assembly. As shown in Figures 1 to 4, the head assembly includes: a supporting base 100, which is fixed to the upper part of the water tank assembly; an air duct lower cover 200, which is located above the supporting base 100 and fixed on the supporting base 100; and an air duct upper cover module 300, which includes an air duct upper cover 310, a motor 320 and a wind wheel 330. The air duct upper cover 310 is located on the side of the air duct lower cover 200 away from the supporting base 100 (that is, the air duct upper cover 310 is located above the air duct lower cover 200) and is fixed to the air duct lower cover 200 facing the supporting base 100 (that is, from top to bottom), the motor 320 is fixed to the air duct upper cover 310, and the wind wheel 330 is located in the air duct upper cover 310 and is transmission-connected to the rotating shaft of the motor 320.

[0034] When the motor 320 of the heat pump water heater is damaged, there is no need to dismantle the heat pump water heater from the wall on which it is mounted. It is only necessary to dismantle the air duct cover module 300 from bottom to top on the head assembly, and then disassemble the air duct cover module 300 on the ground to dismantle the motor 320. The process of disassembling and assembling the motor 320 is simple and easy.

[0035] In some examples, as shown in Figures 1 to 3, the duct upper cover 310 is provided with a through hole, and the duct lower cover 200 is provided with a screw hole. The through hole is located on the side of the screw hole away from the supporting base 100 (that is, the through hole is located above the screw hole), and the threaded section of the screw passes through the through hole from the side of the duct upper cover 310 away from the duct lower cover 200 and is screwed into the screw hole (that is, the threaded section of the screw passes through the through hole from top to bottom and is screwed into the screw hole), so that the duct upper cover 310 is fixed to the duct lower cover 200 from top to bottom. This solution has a simple structure, mature technology, high connection strength, and low operation difficulty.

[0036] Alternatively, the duct upper cover 310 and the duct lower cover 200 may be connected by a snap-on connection or the like, which can also achieve the purpose of this application. Its purpose does not deviate from the design concept of this application and will not be repeated here. It should also fall within the scope of protection of this application.

[0037] In some examples, as shown in Figures 1 to 4, the motor 320 is located within the duct cover 310. This makes the duct cover module 300 more compact and occupies less space. The motor 320 is fixed to the duct cover 310 with screws, and a shock-absorbing pad can be placed between the motor 320 and the duct cover 310 to reduce vibration and noise.

[0038] In some embodiments, as shown in Figures 1 to 3, the head assembly further includes a decorative cover mounted on the outside of the duct upper cover module 300 and the duct lower cover 200, configured to enhance the aesthetics of the heat pump water heater. In this heat pump water heater, if the motor 320 is damaged, there is no need to remove the heat pump water heater from the wall mounting. Instead, the decorative cover can be removed, followed by removing the duct upper cover module 300 from the bottom up, and then disassembling the duct upper cover module 300 on the ground to remove the motor 320. This process of removing and installing the motor 320 is simple and easy.

[0039] In some examples, as shown in Figures 1 to 3 , the decorative cover includes: a peripheral wall 500, which is sleeved over the air duct upper cover module 300 and the air duct lower cover 200; and an end cap 400, which is located at an end of the peripheral wall 500 away from the support base 100 and is detachably connected to the peripheral wall 500. The peripheral wall 500 may be configured as a single unit; or, as shown in Figures 1 to 3 , the peripheral wall 500 may be configured as a split unit; all of the above structures can achieve the purpose of this application, and their purpose does not deviate from the design concept of this application. Detailed description will not be given here, and all of them should fall within the scope of protection of this application.

[0040] When the motor 320 of the heat pump water heater is damaged, there is no need to dismantle the heat pump water heater on the wall where it is mounted. It is only necessary to first dismantle the lower end cover 400, and then dismantle the air duct cover module 300 from bottom to top, and then disassemble the air duct cover module 300 on the ground to dismantle the motor 320. The process of disassembling and assembling the motor 320 is simple and easy.

[0041] In some examples, as shown in Figures 1 to 3, the duct upper cover 310 and the duct lower cover 200 are combined to form a through-wind duct, and the end cover 400 is provided with a first air outlet 410 and a second air outlet 420. The outlet 311 of the through-wind duct is connected to the outside of the decorative cover through the first air outlet 410, and the inlet of the through-wind duct is connected to the outside of the decorative cover through the second air outlet 420.

[0042] In some examples, as shown in Figures 1 to 3, the head assembly further includes: a heat exchanger 600, located between the inlet of the over-flow duct and the second air outlet 420 and fixed to the carrier base 100; and a compressor and control module, located on the side of the heat exchanger 600 away from the over-flow duct and fixed to the carrier base 100. The outlet 311 of the over-flow duct is located above the duct upper cover 310. The side of the duct upper cover 310 facing the heat exchanger 600 and the side of the duct lower cover 200 facing the heat exchanger 600 together form the inlet of the over-flow duct. The motor 320 is located on the side of the impeller 330 away from the heat exchanger 600.

[0043] The outside air enters the decorative cover, then passes through the second air outlet 420 and the heat exchanger 600 in sequence, enters the wind duct from the inlet of the wind duct, and after passing through the wind duct, is discharged to the outside from the outlet 311 of the wind duct from the first air outlet 410. In the process of passing through the heat exchanger 600, the air takes away the cold energy of the heat exchanger 600.

[0044] Alternatively, the second air outlet may be provided on the peripheral wall of the decorative cover, which can also achieve the purpose of this application. Its purpose does not deviate from the design concept of this application and will not be elaborated here. It should also fall within the scope of protection of this application.

[0045] In some examples, as shown in FIG. 1 and FIG. 3 , the carrier base 100 is configured as a water receiving tray, and the water receiving tray is configured to receive condensed water flowing down from the surface of the heat exchanger 600 .

[0046] To sum up, the technical solution proposed in the embodiment of the present invention is that the head assembly is used for the heat pump water heater, and the head assembly is arranged on the upper part of the water tank assembly of the heat pump water heater. When the motor is damaged, there is no need to disassemble the heat pump water heater on the mounting wall. It is only necessary to disassemble the air duct cover module from bottom to top on the head assembly, and then disassemble the air duct cover module on the ground to remove the motor. The process of disassembling and assembling the motor is simple and easy.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0049] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0050] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it 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. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0052] It should be noted that the above-described embodiments or implementations are merely illustrative and not restrictive. Therefore, the present disclosure is not limited to what is specifically shown and described herein. Various modifications, substitutions, or omissions may be made to the forms and details of the implementations without departing from the scope of the present disclosure.

Claims

1. A head assembly for a heat pump water heater, the head assembly comprising: A bearing substrate; The air duct lower cover is fixedly mounted on the bearing base; and The air duct upper cover module comprises an air duct upper cover, a motor and a wind wheel. The air duct upper cover is located on a side of the air duct lower cover away from the bearing substrate and is fixed to the air duct lower cover facing the bearing substrate. The motor is fixed to the air duct upper cover. The wind wheel is located inside the air duct upper cover and is drivingly connected to the rotating shaft of the motor.

2. The head assembly according to claim 1, wherein: The air duct upper cover is provided with a through hole, and the air duct lower cover is provided with a screw hole. The through hole is located on a side of the screw hole away from the supporting base, and the threaded section of the screw passes through the through hole from the side of the air duct upper cover away from the air duct lower cover and is screwed into the screw hole.

3. The head assembly according to claim 1, wherein: The motor is located in the air duct upper cover.

4. The head assembly according to claim 1, wherein: The bearing substrate is a water receiving tray.

5. The head assembly according to any one of claims 1 to 4, further comprising: A decorative cover is installed outside the air duct upper cover module and the air duct lower cover.

6. The head assembly according to claim 5, wherein: The decorative cover comprises: A peripheral wall is sleeved on the air duct upper cover module and the air duct lower cover; and The end cover is located at one end of the peripheral wall away from the supporting substrate and is detachably connected to the peripheral wall.

7. The head assembly according to claim 6, wherein: The air duct upper cover and the air duct lower cover are combined to form a passing air duct, the end cover is provided with a first air port, and the outlet of the passing air duct is connected with the outer side of the decorative cover through the first air port.

8. The head assembly according to claim 6, wherein: The upper cover of the air duct and the lower cover of the air duct are combined to form a passing air duct. The end cover is provided with a second air outlet. The inlet of the passing air duct is connected with the outer side of the decorative cover through the second air outlet.

9. The head assembly according to claim 8, further comprising: The heat exchanger is located between the inlet of the air passage and the second air outlet and is fixed to the supporting base.

10. The head assembly according to claim 9, further comprising: The compressor is located at a side of the heat exchanger away from the air passage and is fixed to the supporting base.

11. The head assembly according to claim 9, further comprising: The control module is located at a side of the heat exchanger away from the air passage and is fixed to the supporting base.

12. A heat pump water heater, comprising a water tank assembly and a head assembly according to any one of claims 1 to 11, wherein the supporting base is fixedly mounted on the water tank assembly.

Images