Low temperature heat pump evaporator

Abstract

The utility model relates to the field of heat pump evaporator, concretely is a kind of low-temperature heat pump evaporator, including shell, shell bottom is limitedly installed on mounting seat, and the both sides and top of shell are all provided with convection air port, and the fan that still installs in the inside of convection air port is used to speed up the air circulation of shell interior;Sun shield is fixedly arranged on the top of shell, and the sun shield is limitedly slidably arranged between the top of shell and the rain baffle of left-right horizontal adjustment;Limiting door frame is fixedly installed on the front side of shell, and the door plate is slidably arranged in the limiting door frame, and the quick release structure for quickly disassembling door plate is installed in the inner top of limiting door frame.The utility model is equipped with multiple convection air ports and fan, to realize multiple air ports, so that the air in the shell and the outside air can be quickly convected, thereby reducing the formation of frost.Through sun shield and the rain baffle of adjustable position, rain can be blocked when raining, to avoid being eroded by rainwater, and avoid affecting the normal operation of heat pump evaporator.

Description

Technical Field

[0001] This utility model relates to the field of heat pump evaporators, specifically a low-temperature heat pump evaporator. Background Technology

[0002] Low-temperature heat pumps reduce the water supply temperature of air-source heat pump units, which can improve the low-temperature operating characteristics of the units. In this system, the air-source heat pump (low-temperature heat pump) is used as a primary unit and operates under a completely new operating condition. This paper uses the established and verified steady-state simulation mathematical model of the air-source heat pump unit to conduct computer simulation of the low-temperature steady-state characteristics of the air-source heat pump under the new and conventional operating conditions. The results show that under the new operating conditions, the low-temperature heating characteristics and operating characteristics of the air-source heat pump are significantly improved. The two-stage coupled heat pump heating system can obtain a stable, reliable and efficient low-grade heat source in a low-temperature environment.

[0003] When the outdoor unit of a low-temperature heat pump evaporator is installed outdoors, it cannot be protected from rain or sun, making it susceptible to water erosion. Furthermore, it lacks multiple vents for air circulation, hindering rapid air convection between the inside and outside of the casing, leading to frost buildup inside. This affects the normal operation of the equipment and makes quick maintenance difficult.

[0004] Therefore, there is an urgent need for a low-temperature heat pump evaporator to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a low-temperature heat pump evaporator, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the specific technical solution adopted by this utility model is as follows:

[0007] A low-temperature heat pump evaporator includes a casing, with the bottom of the casing fixedly mounted on a mounting base. Convection vents are provided on both sides and the top of the casing, and a fan is installed inside the convection vents to accelerate air circulation inside the casing. A sunshade is fixedly installed on the top of the casing, and a horizontally adjustable rain shield is slidably installed between the top of the casing and the sunshade. A limiting door frame is fixedly installed on the front of the casing, and a door panel is slidably housed within the limiting door frame. A quick-release structure for quickly removing and installing the door panel is installed on the inner top of the limiting door frame.

[0008] Furthermore, the sun visor is installed on the top of the housing via a support rod. Limiting groove 1 is installed at both ends of the top of the housing, and limiting groove 2 is installed at the bottom of the sun visor. The rain shield adopts an inclined structure design. The bottom and top of the rain shield slide inward and outward between the housing and the sun visor via limiting slider 1 and limiting slider 2, respectively, through limiting groove 1 and limiting groove 2. Limiting slider 1 is fixedly connected to limiting groove 1 via a limiting screw through a screw hole.

[0009] Furthermore, the quick-release structure includes a locking plate set at the top inside the limiting door frame, a spring at the top of the locking plate that is connected to the top inside the limiting door frame, a locking rod installed at the bottom of the locking plate, a pull rod connected at the middle of the top of the locking plate, and a pull handle connected at the top of the pull rod that extends out of the limiting door frame; one end of the door panel is slidably housed in the storage groove of the limiting door frame, and a lock hole is opened at the top of the door panel to lock with the locking rod.

[0010] Furthermore, the convection vents include convection vent one and convection vent two on the left and right sides of the casing and convection vent three on the top.

[0011] Furthermore, the casing is equipped with a condenser, an evaporator, and a compressor connected in sequence by pipes. The upper and lower ends of the condenser are respectively provided with a cold water inlet and a hot water outlet.

[0012] Furthermore, the mounting base has a mounting groove, the bottom of the housing is mounted in the mounting groove via a mounting base plate, and is fixedly connected to the mounting base via screws through threaded holes; the bottom of the mounting base is provided with support feet.

[0013] This utility model has the following features and beneficial effects:

[0014] This invention employs multiple convection vents in conjunction with a fan to achieve rapid airflow between the inside of the casing and the outside, thereby reducing frost formation. A sunshade and an adjustable rain shield effectively block rainwater during rainfall, preventing erosion and ensuring the normal operation of the heat pump evaporator. A limiting door frame installed on the casing, with a quick-release structure, allows for rapid installation and removal of the door panels, facilitating quick maintenance of the unit. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the door panel after disassembly in this utility model;

[0018] Figure 3 for Figure 2A schematic diagram of the structure viewed from the center;

[0019] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure at mid-longitudinal section;

[0020] Figure 5 This is a schematic diagram of the connection between the rain shield and the sunshade in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the rain shield in this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the mounting base in this utility model;

[0023] Figure 8 This is a schematic diagram of the quick-release structure in this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Housing; 2. Mounting base; 21. Support foot; 22. Mounting groove; 23. Threaded hole; 3. Fan; 4. Limiting door frame; 41. Storage groove; 5. Quick release structure; 51. Locking plate; 52. Pull rod; 53. Locking rod; 54. Spring; 6. Door panel; 7. Sunshade; 71. Limiting slide groove two; 8. Rain shield; 81. Limiting slider one; 82. Limiting screw; 83. Limiting slider two; 9. Evaporator; 10. Compressor; 11. Mounting base plate; 12. Convection vent one; 13. Convection vent two; 14. Convection vent three; 15. Support rod; 16. Limiting slide groove one. Detailed Implementation

[0026] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0027] like Figure 1-8As shown, a low-temperature heat pump evaporator includes a casing 1, which is mounted on a mounting base 2 at its bottom. Convection vents are provided on both sides and the top of the casing 1. A fan 3 is installed inside the convection vents to accelerate airflow inside the casing 1, allowing rapid convection between the air inside and outside the casing 1 and preventing frost buildup inside the casing 1. A sunshade 7 is fixedly installed on the top of the casing 1, and a horizontally adjustable rain shield 8 is slidably installed between the top of the casing 1 and the sunshade 7, preventing rainwater from eroding the casing when used outdoors. A limiting door frame 4 is fixedly installed on the front of the casing 1, housing a sliding door panel 6. A quick-release structure 5 for quickly assembling and disassembling the door panel 6 is installed on the inner top of the limiting door frame 4, facilitating quick assembly and disassembly of the door panel 6 and maintenance.

[0028] Example 1

[0029] like Figure 3 , 5 As shown in Figure 6, the sunshade 7 is installed on the top of the housing 1 via a support rod 15. Limiting grooves 16 are installed at both ends of the top of the housing 1, and a second limiting groove 71 is installed at the bottom of the sunshade 7. The rain shield 8 adopts an inclined structure design. The bottom and top of the rain shield 8 slide inwards and outwards between the housing 1 and the sunshade 7 via limiting sliders 1 and 2, respectively, through limiting grooves 16 and 2, respectively. Limiting slider 81 is fixedly connected to limiting groove 16 via a limiting screw 82 through a screw hole. In specific implementation, after the rain shield 8 is slid inwards and outwards between the housing 1 and the sunshade 7 via the limiting sliders and limiting grooves to a suitable position, it is then fixed by limiting screw 82 through a screw hole, completing the adjustment and installation of the rain shield 8. This allows it to block rainwater during rain, preventing erosion and ensuring the normal operation of the heat pump evaporator.

[0030] Example 2

[0031] like Figure 1 and 4 As shown, the convection vents include convection vent 12 on the left and right sides of the casing 1, convection vent 23 on the left and right sides, and convection vent 3 on the top. Fans 3 are installed inside the convection vents 12, 13 and 14 to accelerate the airflow inside the casing 1. Specifically, starting the fans 3, through the cooperation of the convection vents 12, 13 and 14, enables airflow through multiple convection vents, improving the airflow effect. This allows for rapid convection between the inside and outside air of the casing 1. By using air-cooling technology, forced air circulation is used to cool the inside of the casing 1, thereby reducing frost formation and achieving frost-free operation inside the casing 1.

[0032] Example 3

[0033] like Figure 4 and 8 As shown, the quick-release structure 5 includes a locking plate 51 set at the top inside the limiting door frame 4. A spring 54 is set at the top of the locking plate 51 and at the top of the limiting door frame 4. A locking rod 53 is installed at the bottom of the locking plate 51. A pull rod 52 is connected to the middle of the top of the locking plate 51. The top of the pull rod 52 extends out of the limiting door frame 4 and is connected to a pull handle. One end of the door panel 6 is slidably housed in the receiving groove 41 of the limiting door frame 4. A lock hole is opened at the top of the door panel 6 to lock with the locking rod 53. Specifically, pulling up the pull rod 52 moves the locking plate 51 upward and compresses the spring 54, causing the door panel 6 to slide into the limiting door frame 4 along the receiving groove 41. At this time, releasing the pull rod 52 causes the locking plate 51 to move downward under the elastic potential energy of the spring 54, thereby driving the locking rod 53 to insert into the lock hole at the top of the door panel 6 and lock it. The locking plate 51 clamps the top of the door panel 6, enabling quick disassembly and assembly of the door panel 6 for easy maintenance.

[0034] Specifically, the housing 1 is equipped with a condenser, an evaporator 9, and a compressor 10 connected in sequence by pipes. The condenser has a cold water inlet and a hot water outlet at its upper and lower ends, respectively. In the evaporator 15, the liquid working fluid absorbs heat from the air and evaporates into steam, releasing the absorbed heat in the process. Subsequently, the compressor 10 compresses the low-temperature, low-pressure steam into high-temperature, high-pressure steam, increasing the temperature and pressure. The high-temperature, high-pressure steam enters the condenser, where it releases heat. After adjustment, it returns to a low-temperature, low-pressure liquid and re-enters the evaporator to absorb heat from the air, completing one cycle. This cycle repeats continuously, enabling the heat pump to continuously absorb heat from the air and release it when needed.

[0035] Specifically, the mounting base 2 has a mounting groove 22, the bottom of the housing 1 is mounted on the mounting groove 22 through the mounting base plate 11, and is fixedly connected to the mounting base 2 through the threaded hole 23 by screws; the bottom of the mounting base 2 is provided with support feet 21.

[0036] The working principle of this utility model is as follows:

[0037] In use, the condenser, evaporator 9, and compressor 10 are installed inside the housing 1. Pulling up the lever 52 moves the locking plate 51 upward while compressing the spring 54, causing the door panel 6 to slide into the storage groove 41 of the limiting door frame 4. At this point, releasing the lever 52 causes the locking plate 51 to move downward under the elastic potential energy of the spring 54, thereby driving the locking rod 53 to insert into the lock hole at the top of the door panel 6 and lock it in place. The locking plate 51 clamps the top of the door panel 6. Finally, the housing 1 is slid into the mounting groove 22 via the mounting base plate 11 and fixedly connected to the mounting base 2 with screws through the threaded hole 23, completing the fixed installation.

[0038] When the heat pump evaporator needs to be used outdoors, the sunshade 7 on the top of the casing 1 is used for sun and rain protection. Then, the rain shield 8 is slid in and out between the casing 1 and the sunshade 7 to a suitable position by means of a limiting slider, and then fixed by means of a limiting screw 82 through a screw hole. This completes the adjustment and installation of the rain shield 8, which can block rainwater when it rains, thereby preventing it from being corroded by rainwater and avoiding affecting the normal operation of the heat pump evaporator.

[0039] By setting up convection vent 12, convection vent 2 13, and top convection vent 3 14, and cooperating with the start-up fan 3, multiple convection vents are used to circulate air, improving the air circulation effect. This allows for rapid convection between the inside of the casing 1 and the outside air. By adopting air-cooling technology and using forced air circulation to cool the inside of the casing 1, the formation of frost is reduced, thus achieving the goal of frost-free operation inside the casing 1.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-temperature heat pump evaporator, comprising a housing (1), the bottom of which is mounted on a mounting base (2), characterized in that, Convection vents are provided on both sides and top of the housing (1). Fans (3) are installed inside the convection vents to accelerate the air circulation inside the housing (1). A sunshade (7) is fixedly provided on the top of the housing (1). A rain shield (8) with left and right horizontal adjustment is provided between the top of the housing (1) and the sunshade (7). A limiting door frame (4) is fixedly installed on the front side of the housing (1). A door panel (6) is slidably housed inside the limiting door frame (4). A quick-release structure (5) for quick disassembly and assembly of the door panel (6) is installed on the inner top of the limiting door frame (4).

2. The low-temperature heat pump evaporator as described in claim 1, characterized in that: The sunshade (7) is installed on the top of the housing (1) by a support rod (15). The top two ends of the housing (1) are equipped with a first limiting slide groove (16), and the bottom of the sunshade (7) is equipped with a second limiting slide groove (71). The rain shield (8) adopts an inclined structure design. The bottom and top ends of the rain shield (8) slide inward and outward between the housing (1) and the sunshade (7) through the first limiting slide block (81) and the second limiting slide block (83) respectively via the first limiting slide groove (16) and the second limiting slide groove (71). The first limiting slide block (81) is fixedly connected to the first limiting slide groove (16) through the screw hole via the limiting screw (82).

3. The low-temperature heat pump evaporator as described in claim 1, characterized in that: The quick-release structure (5) includes a locking plate (51) set at the top inside the limiting door frame (4), a spring (54) set at the top of the locking plate (51) and the top of the limiting door frame (4), a locking rod (53) installed at the bottom of the locking plate (51), a pull rod (52) connected at the middle position of the top of the locking plate (51), and a pull handle connected at the top of the pull rod (52) extending out of the limiting door frame (4); one end of the door panel (6) is slidably stored in the storage groove (41) of the limiting door frame (4), and a lock hole is opened at the top of the door panel (6) to lock the locking rod (53).

4. The low-temperature heat pump evaporator as described in claim 1, characterized in that: The convection vents include convection vent one (12) and convection vent two (13) on the left and right sides of the casing (1) and convection vent three (14) on the top.

5. The low-temperature heat pump evaporator as described in claim 1, characterized in that: The casing (1) is equipped with a condenser, an evaporator (9) and a compressor (10) connected in sequence by pipes. The upper and lower ends of the condenser are respectively provided with a cold water inlet and a hot water outlet.

6. The low-temperature heat pump evaporator as described in claim 1, characterized in that: The mounting base (2) has a mounting groove (22), the bottom of the housing (1) is mounted on the mounting groove (22) through the mounting base plate (11), and is fixedly connected to the mounting base (2) through the screw and threaded hole (23); the bottom of the mounting base (2) is provided with a support foot (21).

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