A rear cold air door for a heat pump unit

Abstract

The utility model discloses a post -positioned cold air door for heat pump unit, including heat pump unit main part. The utility model discloses through hinged baffle drive and insert the horizontal plate of clamping block, and through the elastic force of reset elastic force, can promote telescopic insert block and insert the side of clamping block, can be located to hinged baffle, and the two hinged baffles are closed, and the fixed frame is closed, avoids the heat pump unit main part when not using, avoids dust through the air inlet and enters the heat pump unit main part, can guarantee not inhale the moisture that the dryer discharged from, improves the baking effect and quality, through torsion spring's elastic force, can make hinged baffle reset and open when telescopic insert block contracts into the horizontal plate, and the air inlet inhales air conveniently, and through the installation bolt and passes through the mounting frame and fixed frame threaded connection simultaneously, can conveniently dismount to mounting frame.

Description

Technical Field

[0001] This utility model relates to the field of heat pump unit technology, and in particular to a rear-mounted cold air damper for heat pump units. Background Technology

[0002] A heat pump unit is a highly efficient and energy-saving device that fully utilizes low-grade heat energy. Heat can spontaneously transfer from a high-temperature object to a low-temperature object, but not spontaneously in the opposite direction. The working principle of a heat pump is a mechanical device that forces heat to flow from a low-temperature object to a high-temperature object in a reverse circulation manner. It consumes only a small amount of net reverse circulation work to obtain a large amount of heat supply, effectively utilizing low-grade heat energy that is difficult to apply, thus achieving energy-saving goals.

[0003] Existing heat pump units have vents on their surface for supplying air into the unit during operation. However, when the heat pump unit is not in use, the open design of the vents makes it easy for external dust and foreign objects to enter and accumulate inside the unit. In addition, when current heat pump units are used in dryers, the vents are installed above the exhaust window. When the vents are working, they will draw back the exhausted moisture, affecting the drying effect. To address these issues, we propose a rear-mounted cold air damper for heat pump units. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rear-mounted cold air damper for heat pump units.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rear-mounted cooling vent for a heat pump unit includes a heat pump unit body, an air inlet on the back of the heat pump unit body, a fixed frame welded to the surface of the air inlet, an installation mechanism mounted on the surface of the fixed frame, a shielding mechanism hinged inside the installation mechanism, and a limit mechanism fixedly connected at the center of the inner wall of the installation mechanism.

[0006] Preferably, the mounting mechanism includes mounting bolts, and the mounting frame is fitted onto the surface of the fixing frame by the mounting bolts.

[0007] Preferably, the shielding mechanism includes a hinged baffle, the inside of the mounting frame is hinged to the hinged baffle via a hinge shaft, and the outer end of the hinge shaft is fixedly connected to a protective frame, and a torsion spring is sleeved on the surface of the hinge shaft.

[0008] Preferably, two hinge baffles are symmetrically arranged within the mounting frame, and a snap-fit ​​block is fixedly connected to one side of each hinge baffle.

[0009] Preferably, the limiting mechanism includes a horizontal plate, which is fixedly connected to the center of the inner wall of the mounting frame, and a telescopic plug is connected inside the horizontal plate by a reset elastic force.

[0010] Preferably, the interior of the transverse plate has a groove adapted to the snap-fit ​​block, the side of the snap-fit ​​block has a slot adapted to the telescopic insert block, and the surface of the telescopic insert block is set as an inclined surface.

[0011] Preferably, the surface of the telescopic plug is fixedly connected to one end of the connecting column, and the other end of the connecting column is fixedly connected to the pull rod. The surface of the transverse plate is provided with a strip-shaped through groove that matches the connecting column.

[0012] Preferably, the end of the telescopic plug inserted into the transverse plate is fixedly connected to a limiting slider, and the transverse plate is provided with a groove that matches the limiting slider.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This device uses a hinged baffle to drive the snap-fit ​​block into the horizontal plate. The elastic force of the return spring itself pushes the telescopic insert into the side of the snap-fit ​​block, limiting the hinged baffle and facilitating the closure of the two hinged baffles to seal the fixed frame. This prevents dust from entering the heat pump unit body through the air inlet when not in use. Furthermore, the air inlet's location at the rear of the heat pump unit body ensures that moisture discharged from the dryer is not drawn in, improving the baking effect and quality.

[0014] 2. This device uses the elastic force of the torsion spring itself to cause the hinge baffle to reset and unfold when the telescopic plug retracts into the horizontal plate, making it convenient for the air inlet to draw in air. At the same time, the mounting bolts pass through the mounting frame and are threadedly connected to the fixed frame, which makes it easy to disassemble and assemble the mounting frame. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a rear-mounted cooling damper for a heat pump unit proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the heat pump unit's main body and fixed frame structure in a three-dimensional separated state; Figure 3 for Figure 1 A three-dimensional schematic diagram of the hinged baffle structure in its open state; Figure 4 for Figure 3 A magnified 3D schematic diagram of the structure at point A in the diagram; Figure 5 for Figure 1 A three-dimensional cross-sectional diagram of the horizontal plate structure.

[0016] In the diagram: 1. Main body of the heat pump unit; 2. Air inlet; 3. Fixing frame; 4. Mounting mechanism; 41. Mounting bolts; 42. Mounting frame; 5. Shielding mechanism; 51. Hinge baffle; 52. Hinge shaft; 53. Protective frame; 54. Torsion spring; 55. Snap-fit ​​block; 6. Limiting mechanism; 61. Horizontal plate; 62. Reset spring; 63. Telescopic insert; 64. Connecting column; 65. Pull rod; 66. Limiting slider. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-5 A rear-mounted cooling vent for a heat pump unit includes a heat pump unit body 1, an air inlet 2 on the back of the heat pump unit body 1, a fixed frame 3 welded to the surface of the air inlet 2, an installation mechanism 4 mounted on the surface of the fixed frame 3, and a shielding mechanism 5 hinged inside the installation mechanism 4. The installation mechanism 4 and the shielding mechanism 5 can conveniently cover and shield the fixed frame 3 and the air inlet 2. A limit mechanism 6 is fixedly connected at the center of the inner wall of the installation mechanism 4.

[0019] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the installation mechanism 4 includes the installation bolt 41. The surface of the fixed frame 3 is fitted with the installation frame 42 by the installation bolt 41. The installation bolt 41 can conveniently limit the installation of the installation frame 42.

[0020] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the blocking mechanism 5 includes a hinged baffle 51. The hinged baffle 51 is hinged inside the mounting frame 42 through a hinge shaft 52, and a protective frame 53 is fixedly connected to the outer end of the hinge shaft 52. A torsion spring 54 is sleeved on the surface of the hinge shaft 52. The torsion spring 54 can facilitate the reset of the hinged baffle 51, and the protective frame 53 can facilitate the limiting installation of the hinge shaft 52 and the torsion spring 54.

[0021] Furthermore, refer to Figure 3 and Figure 5 It can be seen that there are two hinged baffles 51 symmetrically arranged in the mounting frame 42, and the two hinged baffles 51 are fixedly connected to the opposite side of the two hinged baffles 51. The two hinged baffles 51 drive the snap-fit ​​blocks 55 to be inserted into the limiting mechanism 6, which can facilitate the closing of the two hinged baffles 51 and isolate the air inlet 2 from the outside.

[0022] Furthermore, refer to Figure 3 and Figure 5 It can be seen that the limiting mechanism 6 includes a horizontal plate 61. The horizontal plate 61 is fixedly connected to the center of the inner wall of the mounting frame 42. The interior of the horizontal plate 61 is connected to a telescopic plug 63 through a reset spring 62. The telescopic plug 63 can be easily pushed to reset by the elastic force of the reset spring 62. At the same time, the two hinged baffles 51 can be easily closed through the horizontal plate 61.

[0023] Furthermore, refer to Figure 3 and Figure 5 It can be seen that the interior of the transverse plate 61 has a groove that matches the snap-fit ​​block 55. By inserting the snap-fit ​​block 55 into the groove, the telescopic plug 63 can be inserted into the slot on the side of the snap-fit ​​block 55, thus limiting the snap-fit ​​block 55 in the groove. The side of the snap-fit ​​block 55 has a slot that matches the telescopic plug 63. The surface of the telescopic plug 63 is set as an inclined surface. By setting the surface of the telescopic plug 63 as an inclined surface, when the snap-fit ​​block 55 is pressed against the inclined surface, the telescopic plug 63 can be squeezed and retracted into the transverse plate 61.

[0024] Furthermore, refer to Figure 3 and Figure 5 It can be seen that the surface of the telescopic plug 63 is fixedly connected to one end of the connecting post 64, and the other end of the connecting post 64 is fixedly connected to the pull rod 65. The surface of the transverse plate 61 is provided with a strip-shaped through groove that matches the connecting post 64. By pulling the pull rod 65, the pull rod 65 can drive the two telescopic plugs 63 to move synchronously, which makes it easy to open the two hinged baffles 51. At the same time, through the strip-shaped through groove on the surface of the transverse plate 61, the connecting post 64 can move along the strip-shaped through groove, which makes it easy to drive the telescopic plug 63.

[0025] Furthermore, refer to Figure 3 and Figure 5 It can be seen that the end of the telescopic plug 63 inserted into the transverse plate 61 is fixedly connected to the limiting slider 66. The transverse plate 61 has a groove that matches the limiting slider 66. By moving the telescopic plug 63 along the transverse plate 61, the limiting slider 66 can slide along the groove, which plays the role of limiting and guiding the telescopic plug 63.

[0026] Working principle: When the heat pump unit body 1 is in use, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5By fitting the mounting frame 42 onto the surface of the fixed frame 3, the mounting bolt 41 can pass through the mounting frame 42 and the fixed frame 3, facilitating the installation of the mounting frame 42. When the air inlet 2 needs air intake, pulling the pulling rod 65 causes the connecting column 64 to retract the telescopic block 63 into the transverse plate 61, compressing the return spring 62. This, through the elastic force of the torsion spring 54, causes the hinge shaft 52 to return to its original position, opening both hinge baffles 51 and allowing air to be drawn into the air inlet 2. When the air inlet 2 is not in use, pressing the hinge... The baffle 51 can cause the hinge shaft 52 to drive the torsion spring 54 to deform elastically. When the hinge baffle 51 drives the snap block 55 to insert into the groove of the transverse plate 61, the snap block 55 can press the inclined surface of the telescopic plug 63, and the telescopic plug 63 can retract into the transverse plate 61. When the snap block 55 abuts against the inner wall of the groove, the telescopic plug 63 can be reset and inserted into the snap block 55 by the elastic force of the reset spring 62 itself. This facilitates the function of limiting the hinge baffle 51. The two hinge baffles 51 can be closed to prevent dust from entering the heat pump unit body 1 through the air inlet 2. The above is the complete working principle of this utility model.

[0027] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0028] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0029] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A rear-mounted cold air damper for a heat pump unit, comprising a heat pump unit body (1), characterized in that, The heat pump unit body (1) has an air inlet (2) on the back, and a fixed frame (3) is welded to the surface of the air inlet (2). An installation mechanism (4) is installed on the surface of the fixed frame (3), and a shielding mechanism (5) is hinged inside the installation mechanism (4). A limit mechanism (6) is fixedly connected at the center of the inner wall of the installation mechanism (4).

2. A rear-mounted cold air damper for a heat pump unit according to claim 1, characterized in that, The mounting mechanism (4) includes mounting bolts (41), and the mounting frame (42) is mounted on the surface of the fixing frame (3) by means of the mounting bolts (41).

3. A rear-mounted cold air damper for a heat pump unit according to claim 2, characterized in that, The shielding mechanism (5) includes a hinged baffle (51). The mounting frame (42) is hinged to the inside of the hinged baffle (51) via a hinge shaft (52), and a protective frame (53) is fixedly connected to the outer end of the hinge shaft (52). A torsion spring (54) is sleeved on the surface of the hinge shaft (52).

4. A rear-mounted cold air damper for a heat pump unit according to claim 3, characterized in that, Two hinge baffles (51) are symmetrically arranged in the mounting frame (42), and a snap-fit ​​block (55) is fixedly connected to the opposite side of the two hinge baffles (51).

5. A rear-mounted cold air damper for a heat pump unit according to claim 4, characterized in that, The limiting mechanism (6) includes a horizontal plate (61), and the horizontal plate (61) is fixedly connected to the center of the inner wall of the mounting frame (42), and the interior of the horizontal plate (61) is connected to a telescopic plug (63) by a reset elastic force (62).

6. A rear-mounted cold air damper for a heat pump unit according to claim 5, characterized in that, The interior of the transverse plate (61) is provided with a groove that matches the snap-fit ​​block (55), and the side of the snap-fit ​​block (55) is provided with a slot that matches the telescopic plug (63). The surface of the telescopic plug (63) is set as an inclined surface.

7. A rear-mounted cold air damper for a heat pump unit according to claim 5, characterized in that, The surface of the telescopic plug (63) is fixedly connected to one end of the connecting post (64), and the other end of the connecting post (64) is fixedly connected to the pull rod (65). The surface of the transverse plate (61) is provided with a strip-shaped through groove that is compatible with the connecting post (64).

8. A rear-mounted cold air damper for a heat pump unit according to claim 5, characterized in that, The end of the telescopic plug (63) inserted into the transverse plate (61) is fixedly connected to the limiting slider (66), and the transverse plate (61) is provided with a groove that matches the limiting slider (66).

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