A heat pump device and a bath
By using horizontal and vertical baffles to form a heat collection space in the heat pump unit, combined with air ducts to guide airflow, the problem of reduced heat exchange area caused by exposed finned evaporators is solved, achieving more efficient heat exchange and a compact unit design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN HANJING INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-21
AI Technical Summary
In existing heat pump devices, the finned evaporator is exposed inside the casing, which results in insufficient flow of outside air through the fin gaps, reducing the effective heat exchange area.
A heat collection space is formed by horizontal and vertical partitions. The finned evaporator is housed in the heat collection space. The fan assembly is located on the vertical partition. The air duct guides the airflow to the finned evaporator, forming a uniform flow field. The airflow is forced to the fin gap.
It effectively increases the heat exchange area, transforms the airflow from disordered diffusion to a directional finned evaporator, improves heat exchange efficiency, and reduces the thickness of the device, making it easy to install in a bathtub.
Smart Images

Figure CN224534495U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathtub technology, and in particular to a heat pump device and a bathtub. Background Technology
[0002] As people's living standards improve, spa bathtubs, as a modern form of spa equipment, are becoming increasingly popular. Existing heat pumps are used in the bathroom industry to heat or cool the water in spa bathtubs.
[0003] However, in existing heat pumps, the finned evaporator is directly exposed inside the casing. Under the suction of the fan assembly, the air diffuses freely, causing turbulent airflow. The outside air does not flow sufficiently through the fin gaps and escapes directly from the edge of the heat exchanger, resulting in a reduction in the effective heat exchange area. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a heat pump device that aims to solve the problem in the prior art where the finned evaporator in the heat pump is directly exposed inside the housing, and under the suction action of the fan assembly, the outside air does not flow sufficiently through the fin gaps and escapes directly from the edge of the heat exchanger, resulting in a reduction in the effective heat exchange area.
[0005] This utility model provides a heat pump device, including a housing, a fan assembly, and a titanium tube heat exchanger, a finned evaporator, an electrical control assembly, and a compressor disposed within the housing. The titanium tube heat exchanger, the finned evaporator, and the compressor are connected in series to form a circuit. The housing is provided with a horizontal partition and a vertical partition. The horizontal partition is arranged horizontally, and the vertical partition is arranged vertically. The horizontal partition and the vertical partition enclose a heat collection space for accommodating the finned evaporator. The fan assembly is mounted on the vertical partition and is used to exchange heat within the heat collection space with heat from the outside environment.
[0006] According to some embodiments of the present invention, the edge of the vertical partition is provided with a horizontal side wall and a vertical side wall. The horizontal side wall is arranged along the horizontal direction and perpendicular to the vertical partition, and the vertical side wall is arranged along the vertical direction and perpendicular to the vertical partition. The horizontal side wall is connected to the horizontal partition. The fan assembly is located on one side of the vertical side wall, and the titanium tube heat exchanger, the electrical control assembly, and the compressor are located on the other side of the vertical side wall.
[0007] According to some embodiments of the present invention, a guide tube is protruding from the vertical partition, one end of the guide tube extends toward the side away from the finned evaporator, and the fan assembly is installed inside the guide tube.
[0008] According to some embodiments of the present invention, a guide frame is detachably connected to the outside of the housing, one end of the guide frame extends toward the side away from the finned evaporator, and the guide frame corresponds to the position of the air duct.
[0009] According to some embodiments of the present invention, the titanium tube heat exchanger is located between the housing and the electrical control components.
[0010] According to some embodiments of the present invention, handles are provided on both sides of the box, and the handles can be gripped to move the box.
[0011] This utility model provides a bathtub, including the heat pump device described in any one of the above claims. The bathtub includes a support frame and a tub body, the tub body being installed in the support frame. At least one massage position is arranged in the tub body, and the massage position is arranged with a plurality of water nozzles. A circulation pump is installed in the support frame. One end of the circulation pump is connected to the internal space of the tub body, and the other end is connected to the water inlet of the titanium tube heat exchanger. The water outlet of the titanium tube heat exchanger is connected to the internal space of the bathtub. The circulation pump is used to drive water to circulate between the titanium tube heat exchanger and the internal space of the tub body.
[0012] According to some embodiments of the present invention, a filter is provided between the circulating pump and the cylinder.
[0013] According to some embodiments of this utility model, a water level sensor is provided inside the cylinder.
[0014] According to some embodiments of the present invention, the massage position is provided with a plurality of air nozzles, and an air pump is also installed in the bracket, the air pump being connected to the plurality of air nozzles.
[0015] Beneficial effects: This utility model provides a heat pump device. Since the box is equipped with horizontal and vertical partitions, the horizontal partitions are set along the horizontal direction and the vertical partitions are set along the vertical direction. The horizontal and vertical partitions enclose a heat collection space, and the finned evaporator is housed in the heat collection space. Under the suction of the fan assembly and the restriction of the horizontal and vertical partitions, the airflow is forced to the gap of the finned evaporator, forming a uniform flow field. The airflow changes from disordered diffusion to directional finned evaporator, and the effective heat exchange area is greatly improved. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the bathtub of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the bathtub of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the heat pump device of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the heat pump device of this utility model (excluding the electrical control components).
[0021] Figure 5 This is a schematic diagram of the internal structure of the vertical partition of this utility model;
[0022] Figure 6 This is an exploded view of the structure of the electronic control component of this utility model.
[0023] In the diagram: 1. Housing; 10. Heat collection space; 11. Guide frame; 12. Handle; 13. Grounding base assembly; 14. Refrigerant interface; 2. Fan assembly; 3. Titanium tube heat exchanger; 4. Finned evaporator; 5. Electrical control assembly; 51. Wiring terminal; 52. Control box top cover; 53. Control box bottom cover; 54. Sealing ring; 55. Sealing head; 56. Pressure strip; 6. Compressor; 61. Four-way valve; 7. Horizontal partition; 8. Vertical partition; 81. Horizontal side panel; 82. Vertical side panel; 83. Air duct; 91. Bracket; 911. Circulation pump; 912. Air pump; 92. Cylinder; 921. Massage position; 922. Water nozzle; 923. Water level sensor; 924. Air nozzle; 925. Filter; 926. Bluetooth speaker. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] Please see Figures 1 to 6This utility model provides a heat pump device, including a housing 1, a fan assembly 2, and a titanium tube heat exchanger 3, a finned evaporator 4, an electrical control assembly 5, and a compressor 6 disposed within the housing 1. The titanium tube heat exchanger 3, the finned evaporator 4, and the compressor 6 are connected in series to form a circuit. The housing 1 is provided with a horizontal partition 7 and a vertical partition 8. The horizontal partition 7 is arranged horizontally, and the vertical partition 8 is arranged vertically. The horizontal partition 7 and the vertical partition 8 enclose a heat collection space 10, which is used to accommodate the finned evaporator 4. The fan assembly 2 is mounted on the vertical partition 8 and is used to exchange heat within the heat collection space 10 with heat from the outside.
[0026] In this application, since the housing 1 is provided with a horizontal partition 7 and a vertical partition 8, the horizontal partition 7 is arranged along the horizontal direction and the vertical partition 8 is arranged along the vertical direction. The horizontal partition 7 and the vertical partition 8 enclose a heat collection space 10, and the finned evaporator 4 is housed in the heat collection space 10. Under the suction action of the fan assembly 2 and the restriction of the horizontal partition 7 and the vertical partition 8, the airflow is forced to be guided to the gap of the finned evaporator 4, forming a uniform flow field. The airflow changes from disordered diffusion to directional finned evaporator 4, and the effective heat exchange area is greatly improved.
[0027] Furthermore, a four-way valve 61 is also installed within the heat pump device. In this embodiment, the refrigerant flow direction is switched via the four-way valve 61, enabling the titanium tube heat exchanger 3 to switch roles in cooling / heating modes. When cooling is required, the titanium tube heat exchanger 3 acts as an evaporator, absorbing heat to cool the water in the cylinder 92. When heating is required, the titanium tube heat exchanger 3 acts as a condenser, releasing heat to heat the water in the cylinder 92.
[0028] According to some embodiments of this utility model, the edge of the vertical partition 8 is provided with a horizontal sidewall 81 and a vertical sidewall 82. The horizontal sidewall 81 is arranged horizontally and perpendicular to the vertical partition 8, and the vertical sidewall 82 is arranged vertically and perpendicular to the vertical partition 8. The horizontal sidewall 81 is connected to the horizontal partition 7. The fan assembly 2 is located on one side of the vertical sidewall 82, and the titanium tube heat exchanger 3, the electrical control assembly 5, and the compressor 6 are located on the other side of the vertical sidewall 82. In this embodiment, since the vertical sidewall 82 separates the titanium tube heat exchanger 3 and other components from the fan assembly 2, it effectively prevents the airflow from flowing in a directional direction during the extraction process of the fan assembly 2, thus preventing the airflow from flowing towards the titanium tube heat exchanger 3 and other components and affecting them.
[0029] According to some embodiments of this utility model, a guide duct 83 protrudes from the vertical partition 8, one end of the guide duct 83 extends away from the finned evaporator 4, and the fan assembly 2 is installed inside the guide duct 83. In this embodiment, the guide duct 83 can guide the airflow in the heat collection space 10 to the air inlet of the fan assembly 2, thereby enabling the fan assembly 2 to draw in air more efficiently, reducing airflow disturbance and loss, and improving the performance of the fan assembly 2; in addition, the guide duct 83 can effectively prevent airflow backflow, ensuring that the fan assembly 2 can operate continuously and stably, and avoiding airflow interference with the air intake efficiency of the fan assembly 2.
[0030] According to some embodiments of this utility model, a guide frame 11 is detachably connected to the outer side of the housing 1. One end of the guide frame 11 extends away from the finned evaporator 4, and the guide frame 11 corresponds to the position of the air duct 83. When the heat pump device of this application is used in a bathtub, the heat pump device is directly installed inside the skirt panel of the bathtub, which is convenient for users to arrange and install, achieving a perfect combination of aesthetics and performance. Therefore, after the heat pump device is installed, a through hole corresponding to the air duct 83 needs to be opened in the skirt panel to allow the fan assembly 2 to exhaust air. In this embodiment, the guide frame 11 can guide the airflow of the fan assembly 2 to the outside of the skirt panel, preventing the airflow from rebounding in the space between the skirt panel and the housing 92.
[0031] According to some embodiments of this utility model, the titanium tube heat exchanger 3 is located between the housing 1 and the electrical control component 5. In this embodiment, the arrangement of the titanium tube heat exchanger 3 and the electrical control component 5 within the housing 1 allows for a reduction in the thickness of the heat pump device, making it a rectangular ultra-thin unit, facilitating its installation and fixation inside the bathtub. The heat pump device is less than 160mm thick, while commercially available heat pumps, due to their excessive thickness, can only be installed outside the bathtub.
[0032] According to some embodiments of the present invention, handles 12 are provided on both sides of the box 1, and the handles 12 can be gripped to move the box 1.
[0033] This utility model provides a bathtub, including the heat pump device described in any of the above claims. The bathtub includes a bracket 91 and a tub 92. The tub 92 is installed in the bracket 91. At least one massage position 921 is arranged in the tub 92, and a plurality of water nozzles 922 are arranged in the massage position 921. A circulation pump 911 is installed in the bracket 91. One end of the circulation pump 911 is connected to the internal space of the tub 92, and the other end is connected to the water inlet of the titanium tube heat exchanger 3. The water outlet of the titanium tube heat exchanger 3 is connected to the internal space of the bathtub. The circulation pump 911 is used to drive water to circulate between the titanium tube heat exchanger 3 and the internal space of the tub 92.
[0034] In this invention, the electrical control component 5 includes a controller, a power supply module, and a communication module. Because the power supply module, controller, and communication module are housed within the casing 1, the casing 1 maintains a flat and aesthetically pleasing appearance, facilitating installation within the gap between the tub and the support. The controller is connected to the operation panel, power supply module, and communication module respectively. The operation panel is located on the bathtub, allowing users to adjust the water inlet, outlet, and water temperature on-site, and also to remotely connect to the communication module via a mobile device for remote adjustment of the bathtub, providing convenience and a satisfactory user experience. Preferably, the communication module includes a Wi-Fi communication unit, a GPRS communication unit, and a Bluetooth communication unit. When Wi-Fi is available, the user establishes a connection via the Wi-Fi communication unit to control the controller. When Wi-Fi is unavailable, the user establishes a connection via the GPRS communication unit. When the user and the bathtub meet the Bluetooth communication distance requirements, they can establish a connection via the Bluetooth communication unit.
[0035] Preferably, the communication module and controller employ injection-molded connector pins and wires, reducing the number of connecting wires extending outside the enclosure. Users only need to plug the other end of the communication cable into the communication component, making it very simple and convenient. Specifically, the wiring terminals 51 of the communication module and controller are located on the vertical side of the enclosure 1, on the same side as the inlet and outlet of the titanium tube heat exchanger 3. Specifically, the communication module and controller are encapsulated by the control box cover 52. A sealing ring 54 is inserted into the sealing groove of the control box cover 52, and the control box cover is locked to the control box bottom cover 53 with screws to achieve a fixed, protective, and sealed effect. After the controller wiring is completed, the wires are pressed tightly by the pressure strip 56, achieving a waterproof seal. The outlet can be sealed using a plug 55. Correspondingly, the grounding bracket assembly 13 and the refrigerant interface 14 are located on the same side as the inlet and outlet of the titanium tube heat exchanger 3. The grounding copper strip on the grounding bracket assembly 13 is connected to the power ground. During use, the user only needs to tighten the grounding wire onto the grounding copper strip to complete the installation. The wiring terminals 51 of the aforementioned communication module and controller, as well as the grounding bracket assembly, are all located on the same side, greatly improving the convenience of wiring. The refrigerant interface 14 is located on the outside of the housing 1 for easy addition of refrigerant.
[0036] In practical applications, the aforementioned terminal 51 and the inlet and outlet of the titanium tube heat exchanger 3 can be placed on the left or right side of the housing 1 for output. For ease of identification and use, the letters "L" and "R" are used for clear differentiation, ensuring that users can easily select and correctly set the inlet and outlet ports and electrical control wiring ports according to specific needs during operation, thereby improving the installation efficiency and ease of use of the equipment.
[0037] Furthermore, multiple water pumps are installed within the support frame 91, and these pumps are controlled by the electronic control component 5. Multiple pumps ensure even water distribution in the bathtub, preventing some areas from having excessively strong water flow while others have insufficient flow, thus achieving a more balanced massage effect. In addition, different pumps can provide water flow of varying intensities as needed, meeting the needs of different users. For example, some pumps provide a gentle massage, while others provide a stronger water flow for a deeper relaxation effect. Different pumps can be controlled independently, providing different massage modes (such as bubble massage, pulse massage, etc.), allowing users to choose a more suitable massage method.
[0038] To further enhance the user experience, a Bluetooth speaker 926 is installed on the tub body 92. The Bluetooth speaker 926 improves the entertainment and comfort of the bathroom, making bathing time more enjoyable. In addition, the tub body 92 features RGB lighting, which mixes red, green, and blue light at different intensities to create other colors. For example, mixing red and green light produces yellow; mixing red and blue light produces magenta; and mixing green and blue light produces cyan. The RGB light source offers flexible color adjustment, allowing for precise control of color output as needed.
[0039] According to some embodiments of this utility model, a filter 925 is provided between the circulating pump 911 and the cylinder 92. In this example, impurities in the water are filtered out by the filter 925 to avoid adverse effects on the circulating pump 911 and the titanium tube heat exchanger 3.
[0040] According to some embodiments of this utility model, a water level sensor 923 is provided inside the cylinder 92. The water level sensor 923 can detect the water level inside the cylinder 92. When the water level is too low, it will automatically shut off the water nozzle 922 or stop the operation of the circulation pump 911 to prevent operation when the water level is too low, thereby avoiding damage to the circulation pump 911 due to lack of water.
[0041] Furthermore, a disinfection device is installed within the support frame 91. This disinfection device can be an ozone generator. The ozone generator produces ozone, which, through its strong oxidizing properties, destroys the cell structure of bacteria / viruses and simultaneously degrades harmful chlorinated compounds in the water. The ozone generator injects ozone into the water through the bubble head of the tank 92.
[0042] According to some embodiments of this utility model, the massage position 921 is equipped with a plurality of air nozzles 924, and an air pump 912 is also installed inside the bracket 91, the air pump 912 being connected to the plurality of air nozzles 924. It should be noted that the air pump 912 mainly generates increased air pressure to break up the water surface and achieve a comfortable massage effect, and the bubble nozzles are generally located at the bottom of the bathtub.
[0043] In summary, the bathtub provided by this utility model allows users to adjust the water inlet and outlet of the bathtub on-site via the control panel. At the same time, users can also establish a connection with the controller via the communication module on their mobile devices to remotely control the bathtub. It also has functions such as constant temperature maintenance, water level detection, surfing, bubble massage, and sterilization.
[0044] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A heat pump device, characterized in that: The device includes a housing (1), a fan assembly (2), and a titanium tube heat exchanger (3), a finned evaporator (4), an electrical control assembly (5), and a compressor (6) disposed within the housing (1). The titanium tube heat exchanger (3), the finned evaporator (4), and the compressor (6) are connected in series to form a circuit. The housing (1) is provided with a horizontal partition (7) and a vertical partition (8). The horizontal partition (7) is arranged along the horizontal direction, and the vertical partition (8) is arranged along the vertical direction. The horizontal partition (7) and the vertical partition (8) enclose a heat collection space (10). The heat collection space (10) is used to accommodate the finned evaporator (4). The fan assembly (2) is installed on the vertical partition (8) and is used to exchange heat in the heat collection space (10) with heat from the outside.
2. The heat pump device according to claim 1, characterized in that: The edge of the vertical partition (8) is provided with a horizontal side wall (81) and a vertical side wall (82). The horizontal side wall (81) is arranged in the horizontal direction and is perpendicular to the vertical partition (8). The vertical side wall (82) is arranged in the vertical direction and is perpendicular to the vertical partition (8). The horizontal side wall (81) is connected to the horizontal partition (7). The fan assembly (2) is located on one side of the vertical side wall (82). The titanium tube heat exchanger (3), the electrical control assembly (5) and the compressor (6) are located on the other side of the vertical side wall (82).
3. The heat pump device according to claim 1, characterized in that: A guide tube (83) protrudes from the vertical partition (8), one end of the guide tube (83) extends toward the side away from the finned evaporator (4), and the fan assembly (2) is installed inside the guide tube (83).
4. The heat pump device according to claim 3, characterized in that: A guide frame (11) is detachably connected to the outside of the housing (1). One end of the guide frame (11) extends toward the side away from the finned evaporator (4). The guide frame (11) corresponds to the position of the air duct (83).
5. The heat pump device according to claim 1, characterized in that: The titanium tube heat exchanger (3) is located between the housing (1) and the electrical control assembly (5).
6. The heat pump device according to claim 1, characterized in that: The box (1) is provided with handles (12) on both sides, and the handles (12) can be gripped to move the box (1).
7. A bathtub comprising a heat pump device as described in any one of claims 1-6, characterized in that: The bathtub includes a bracket (91) and a tub (92). The tub (92) is installed in the bracket (91). At least one massage position (921) is arranged in the tub (92). The massage position (921) is provided with a plurality of water nozzles (922). A circulation pump (911) is installed in the bracket (91). One end of the circulation pump (911) is connected to the internal space of the tub (92), and the other end is connected to the water inlet of the titanium tube heat exchanger (3). The water outlet of the titanium tube heat exchanger (3) is connected to the internal space of the bathtub. The circulation pump (911) is used to drive water to circulate between the titanium tube heat exchanger (3) and the internal space of the tub (92).
8. The bathtub according to claim 7, characterized in that: A filter (925) is provided between the circulation pump (911) and the cylinder (92).
9. The bathtub according to claim 7, characterized in that: A water level sensor (923) is installed inside the cylinder (92).
10. The bathtub according to claim 7, characterized in that: The massage position (921) is provided with a plurality of air nozzles (924), and an air pump (912) is also installed in the bracket (91), the air pump (912) being connected to the plurality of air nozzles (924).