Heat pump unit

Abstract

The utility model discloses a heat pump unit which comprises a unit body, a first channel and a flow guide cavity are arranged in the unit body, the first channel is communicated with one side of the flow guide cavity, and the flow guide cavity comprises a plurality of air outlets which are formed in the peripheral side of the first channel in a scattered mode. The air guide piece is arranged in the flow guide cavity, the air guide piece comprises a supporting part and an air guide part, the air guide part is provided with a protruding vertex part corresponding to the first channel in position and a plurality of flow dividing parts distributed on the peripheral side of the protruding vertex part, and air flow entering the flow guide cavity from the first channel is discharged out of the flow guide cavity from the multiple air outlets after flowing through the flow dividing parts. Compared with the prior art, the air guide piece is arranged in the unit body, the multiple flow dividing parts are arranged on the air guide piece in the protruding mode, airflow can be guided by the flow dividing parts to smoothly turn back along the surface of the air guide piece, more uniform and smoother air outlet is achieved, and therefore the heat exchange efficiency is improved, and the energy efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a heat pump unit. Background Art

[0002] Most heat pump units on the current market use a side-in and side-out air inlet and outlet heat exchange method. This design allows the wind to enter from the back, pass through the fin heat exchanger and the axial flow motor fan blades, and finally blow out from the air outlet of the front frame. In this traditional design, the wind inlet and outlet directions have not changed significantly. However, with the evolution of market demand, the appearance design of heat pump units has become more and more diverse. In particular, for a structural design with air inlet from the back and air outlet on both sides, there is a significant technical difficulty: the 90° angle between the air inlet and air outlet directions. Under this design, the wind is first blown onto the front frame and then pushed to both sides, causing greater wind resistance, thereby affecting the heat exchange efficiency of the unit. Utility Model Content

[0003] The utility model aims to provide a heat pump unit to solve the technical problems in the prior art, and can achieve more uniform and smooth air outlet, thereby improving heat exchange efficiency and increasing energy efficiency.

[0004] The utility model provides a heat pump unit, comprising:

[0005] A unit body, wherein the unit body has a first channel and a flow guide cavity inside, the first channel is connected to one side of the flow guide cavity, and the flow guide cavity includes a plurality of air outlets dispersedly arranged around the first channel;

[0006] An air guide member is disposed in the guide cavity, the air guide member comprises a support portion and an air guide portion, the support portion is disposed opposite to the first channel and has a first surface facing the first channel, the air guide portion is disposed on the first surface, and the air guide portion is a convex structure disposed convexly relative to the first surface;

[0007] in,

[0008] The air guide portion has a raised vertex portion corresponding to the position of the first channel and a plurality of diversion portions distributed around the raised vertex portion. The raised thickness of each diversion portion relative to the first surface gradually decreases from the raised vertex portion toward a corresponding air outlet. The airflow entering the guide cavity from the first channel is diverted through the plurality of diversion portions and then discharged from the guide cavity from the plurality of air outlets.

[0009] In the heat pump unit as described above, preferably, a surface of each diversion portion facing away from the support portion is an arc-shaped curved surface.

[0010] In the heat pump unit as described above, preferably, the apex of the protrusion is located on the central axis of the first channel.

[0011] In the heat pump unit as described above, preferably, the apex of the protrusion is located on the center line of the first surface, and the arc radii of the arc surfaces of the plurality of diversion portions are the same.

[0012] In the heat pump unit as described above, preferably, adjacent diversion parts form a ridge at the connection, and the surface of the ridge is a smooth curved surface.

[0013] In the heat pump unit as described above, preferably, the number of the air outlets is three, the three air outlets are respectively located on the bottom surface of the guide cavity and two laterally opposite side surfaces, and the diversion parts are arranged in a one-to-one correspondence with the air outlets.

[0014] In the heat pump unit as described above, preferably, the wind guide member further includes a wind shielding portion, and the wind shielding portion is arranged along the top edge of the supporting portion and extends toward the side where the first channel is located.

[0015] In the heat pump unit as described above, preferably, a height of the apex of the protrusion relative to the first surface is 1 / 3 to 1 / 2 times the distance from the first channel to the first surface.

[0016] A heat pump unit as described above, wherein preferably, the longest distance from the apex of the protrusion to any of the air outlets is less than or equal to a preset value, and the preset value is 10 times the height of the apex of the protrusion relative to the first surface.

[0017] In the heat pump unit as described above, preferably, the air guide member is made of an EPP injection-molded sponge air guide member.

[0018] Compared with the prior art, the utility model arranges an air guide member in the main body of the unit, and a plurality of diversion parts are protruding on the air guide member. The airflow is guided by the diversion parts and can be smoothly deflected along the surface of the air guide member, so as to achieve more uniform and smooth air outlet, thereby improving heat exchange efficiency and increasing energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the overall structure of the heat pump unit provided by the embodiment of the utility model;

[0020] Figure 2 It is a side view of the overall structure of the heat pump unit provided by the embodiment of the utility model;

[0021] Figure 3 It is a top view of the overall structure of the heat pump unit provided by the embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the overall structure of the heat pump unit provided by the embodiment of the utility model;

[0023] Figure 5 It is a partial exploded schematic diagram of the overall structure of the heat pump unit provided by the embodiment of the utility model;

[0024] Figure 6 It is a side view of the heat pump unit provided by the embodiment of the utility model in a state where the shell is hidden;

[0025] Figure 7 yes Figure 6 AA section view;

[0026] Figure 8 It is a front view of the heat pump unit provided by the embodiment of the utility model in the state of concealing some components;

[0027] Fig. 9 yes Figure 8 BB section view;

[0028] Fig.10 It is a side view of the air guide member provided in the embodiment of the utility model;

[0029] Fig.11 It is a bottom view of the air guide member provided in the embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 10-unit body, 11-first channel, 12-guiding cavity, 13-air inlet, 14-air outlet, 141-first air outlet, 142-second air outlet, 143-third air outlet, 15-heat exchanger, 16-fan;

[0032] 20-air guide, 21-support portion, 211-first surface, 22-air guide portion, 221-convex vertex portion, 222-divider portion, 2221-first air guide arc surface, 2222-second air guide arc surface, 2223-third air guide arc surface, 223-ridge, 23-wind shielding portion, 24-rib;

[0033] X-preset axis. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0035] like Figures 1 to 11 As shown, an embodiment of the utility model provides a heat pump unit, including a unit body 10 and an air guide member 20 arranged in the unit body 10, wherein:

[0036] The unit body 10 includes a shell, the shell is provided with an air inlet 13 and an air outlet 14, the shell has a storage space, the storage space contains a heat exchanger 15 and a fan 16, the structure of the heat exchanger 15 and the fan 16 can refer to the relevant structure in the prior art, and will not be repeated here, refer to Figures 1 to 3 As shown, the dotted arrow in the figure indicates the direction of airflow. The fan 16 is working, driving the external airflow to enter the accommodation space from the air inlet 13. After heat exchange with the heat exchanger 15, the external airflow is blown to the air guide 20, and after being guided by the air guide 20, it is sent to the outside from the air outlet 14.

[0037] In the embodiments provided by the present utility model, refer to Figure 6 as well as Fig. 9 As shown, the unit body 10 has a first channel 11 and a guide cavity 12, and the fan 16 is arranged in the first channel 11. In other feasible implementations, the fan 16 can also be arranged outside the first channel 11, as long as the airflow can be transported to the first channel 11. The first channel 11 has a first end and a second end. The first end of the first channel 11 is connected to the air inlet 13, and the second end of the first channel 11 is connected to the guide cavity 12. The air outlet 14 of the unit body 10 is formed at the second end of the guide cavity 12. The number of air outlets 14 can be multiple, and the multiple air outlets 14 are arranged on the surrounding side of the first channel 11.

[0038] Reference Figures 6 to 11 As shown, the air guide member 20 is arranged in the guide cavity 12, and the air guide member 20 includes a support portion 21 and an air guide portion 22. The support portion 21 is arranged opposite to the first channel 11 and has a first surface 211 facing the first channel 11. The air guide portion 22 is arranged on the first surface 211, and the air guide portion 22 is a protruding structure that is protruded relative to the first surface 211 and is set to a preset shape.

[0039] The air guide portion 22 has a raised vertex portion 221 corresponding to the position of the first channel 11 and a plurality of diverter portions 222 distributed around the raised vertex portion 221. The raised thickness of each diverter portion 222 relative to the first surface 211 gradually decreases from the raised vertex portion 221 toward a direction corresponding to an air outlet 14. The airflow entering the guide cavity 12 from the first channel 11 is diverted by the plurality of diverter portions 222 and then discharged from the guide cavity 12 from the plurality of air outlets 14. Different diverter portions 222 are used to disperse the airflow sent from the first channel 11 to multiple directions of the guide cavity 12.

[0040] Each diverter portion 222 has a large diameter end and a small diameter end. The radius of the diverter portion 222 gradually decreases from the large diameter end to the small diameter end of the diverter portion 222, which is a continuous linear change process. In other feasible embodiments, the radius change of the diverter portion 222 can also be a discontinuous or nonlinear change process, which is not limited here. The large diameter end of the diverter portion 222 is continuous with the first surface 211 of the support portion 21, and the small diameter ends of multiple diverter portions 222 coincide with the raised vertex portion 221. The small diameter end of the diverter portion 222 is closer to the first channel 11 than the large diameter end. The airflow sent out from the first channel 11 first contacts the small diameter end of the diverter portion 222, and then is dispersed to all directions after being guided by the surface of the diverter portion 222.

[0041] In the embodiment provided by the utility model, the surface of each diverter portion 222 away from the support portion 21 is an arc curved surface, and the diverter portion 222 is designed to be a smoothly transitioned contact surface, which optimizes the airflow path and improves the overall performance of the heat pump unit.

[0042] Reference Figure 6 as well as Figure 7 As shown, the support portion 21 is a plate structure, the first channel 11 has a central axis, the normal direction of the center of the first surface 211 of the support portion 21 has a center line, the center line of the first surface 211 is parallel to the central axis of the first channel 11, and the airflow is transported along the central axis direction of the first channel 11. When the airflow blows to the surface of the diverter portion 222, it is guided by the diverter portion 222 and smoothly transitions to the first surface 211 of the support portion 21, making a 90° turn to achieve more uniform and smooth air outlet, thereby improving heat exchange efficiency and increasing energy efficiency.

[0043] In a feasible implementation manner, the convex vertex portion 221 is located on the center line of the first channel 11, referring to Figure 6 as well as Fig. 9 As shown, the first surface 211 has a preset axis X in the normal direction of the support portion 21. The preset axis X is an artificially set imaginary line, which is represented by a dotted line in the figure. The preset axis X passes through the center of the raised vertex portion 221. The multiple diverter portions 222 are distributed in a ring shape with the preset axis X as the center line. The central axis of the first channel 11 coincides with the preset axis X, but does not coincide with the center line of the first surface 211. The arc radii of the arc surfaces of the multiple diverter portions 222 are different.

[0044] For example, refer to Figure 7As shown, in the horizontal direction in the figure, the small diameter end of the diverter portion 222 located on the left is farther from the edge of the corresponding side of the first surface 211, and the small diameter end of the diverter portion 222 located on the right is closer to the edge of the corresponding side of the first surface 211. The arc radius of the diverter portion 222 on the left is smaller than the arc radius of the diverter portion 222 on the right, and the arc surface of the diverter portion 222 on the left is flatter than that on the right, so that more airflow is selectively guided to the right, which has a biasing effect on the flow of airflow.

[0045] In another feasible implementation, the raised vertex portion 221 is located on the center line of the first surface 211, the arc radius of the arc surfaces of the multiple diversion portions 222 is the same, the preset axis X, the center line of the first surface 211, and the center axis of the first channel 11 coincide with each other, and the airflow can be more evenly guided by the multiple diversion portions 222 to achieve more uniform and smooth air outlet.

[0046] Reference Figure 7 As shown, adjacent flow dividers 222 form a ridge 223 at the connection, and the surface of the ridge 223 is a smooth curved surface to form a smooth transition contact with the airflow to avoid right-angled edges that are likely to cause turbulence or vortices.

[0047] In the embodiments provided by the present utility model, refer to Figures 1 to 3 As shown, there are three air outlets 14 , which are respectively located on the bottom surface and two laterally opposite side surfaces of the guide cavity 12 , and the diverter portions 222 are arranged in one-to-one correspondence with the air outlets 14 .

[0048] Specifically, refer to Figure 7 As shown, the diverter 222 includes a first air guiding arc surface 2221, a second air guiding arc surface 2222 and a third air guiding arc surface 2223, the guide cavity 12 has a first air outlet 141, a second air outlet 142 and a third air outlet 143, the first air outlet 141 and the second air outlet 142 are arranged opposite to each other, and the first air outlet 141 and the second air outlet 142 are located on opposite sides of the unit body 10 in the horizontal direction. In a feasible implementation manner, the first air outlet 141 and the second air outlet 142 are both composed of a plurality of through holes distributed in an array, and along the direction of gravity, the third air outlet 143 is located below the first air outlet 141 and the second air outlet 142, wherein:

[0049] The first air guiding arc surface 2221 is set corresponding to the first air outlet 141 to guide the airflow delivered from the first channel 11 to be sent out from the first air outlet 141 to the outside, the second air guiding arc surface 2222 is set corresponding to the second air outlet 142 to guide the airflow delivered from the first channel 11 to be sent out from the second air outlet 142 to the outside, and the third air guiding arc surface 2223 is set corresponding to the third air outlet 143 to guide the airflow delivered from the first channel 11 to be sent out from the third air outlet 143 to the outside.

[0050] When the airflow flows in the unit body 10, it changes direction by 90° and is sent out from the side and bottom of the unit body 10, which can take away the heat of the electrical components close to the side and bottom of the unit body 10, and play an auxiliary heat dissipation role. The speed of the airflow can be appropriately reduced during the turning process, which can effectively reduce the noise generated by the vibration when the wind blows out of the heat pump unit. At the same time, when the airflow blows out from the side, it does not blow directly onto the human body passing in front, and the user experience is good.

[0051] Those skilled in the art will appreciate that the air guide 20 may be provided with more than just three diverter portions 222 , and the number, shape and relative position of the diverter portions 222 may be specifically adjusted according to actual needs, which is not limited here.

[0052] Since there is no air outlet at the top of the guide cavity 12, in order to prevent the airflow from overflowing from the sheet metal assembly gap at the top of the guide cavity 12, the air guide member 20 needs to fit with the top wall surface of the guide cavity 12. Figure 7 , Fig.10 as well as Fig.11 As shown, the wind guide member 20 also includes a wind shield portion 23, which is arranged along the top edge of the support portion 21 and extends toward the side where the first channel 11 is located. In the gravity direction, the wind shield portion 23 is arranged at the top end of the support portion 21, and the side of the support portion 21 is in contact with the side wall surface of the guide cavity 12, and the wind shield portion 202 is in contact with the top wall surface of the guide cavity 12. The wind shield portion 202 extends toward the side close to the first channel 11. After the airflow reaches the wind shield portion 202, it is blocked by the wind shield portion 202, so that the airflow can only be sent out from the air outlet 14 on the unit body 10, thereby improving the air volume and energy efficiency.

[0053] In a feasible implementation manner, the height of the protruding vertex portion 221 relative to the first surface 211 is 1 / 3 to 1 / 2 times the distance from the first channel 11 to the first surface 211. Figure 6 as well as Fig. 9As shown, the size of the air guiding part 22 satisfies the following formula: 1 / 3W < H < 1 / 2W, where: H represents the height of the convex vertex part 221 relative to the first surface 211; W represents the distance between the first surface 211 and the first channel 11 in the direction of the preset axis X, so that there is sufficient guiding and diverting space for the air flow, and the distance between the first channel 11 and the air guiding member 20 will not be too large, resulting in the air flow spreading before reaching the air guiding member 20 after being sent out from the first channel 11, and the drainage effect of the air guiding member 20 is weakened.

[0054] Further, the longest distance from the convex vertex part 221 to any air outlet 14 is less than or equal to a preset value, and the preset value is 10 times the height of the convex vertex part 221 relative to the first surface 211. Specifically, referring to Figure 7 and Fig.10 As shown, the size of the diverting part 222 satisfies the following formula: L < 10H, where:

[0055] L represents the longest distance between the convex vertex part 221 and any air outlet 14 of the diversion cavity 12 in the horizontal direction. In the embodiment provided by the present invention, the support part 21 is a plate structure, and the side of the plate structure is attached to the side wall surface of the diversion cavity 12 to form a complete sealed air duct. The first air outlet 141 and the second air outlet 142 are respectively formed on two opposite side wall surfaces of the diversion cavity 12. The longest distance between the convex vertex part 221 and the air outlet 14 of the diversion cavity 12 is equivalent to the distance between the small-diameter end of the diverting part 222 and the side of the support part 21.

[0056] By restricting the size of the diverting part 222 within this range, the bending curvature requirement of the diverting part 222 can be met, guiding the air flow to have a smooth transition, and avoiding the problem that the diverting part 222 does not have enough curved surface radius, resulting in an increase in wind resistance.

[0057] In a feasible implementation manner, the material of the air guiding member 20 is an EPP injection-molded sponge air guiding member, which is made of EPP injection-molded sponge material. Compared with the traditional sheet metal air guiding plate, the EPP injection-molded sponge material has good heat preservation properties, can avoid the phenomenon of internal cold and external heat and condensation and frosting caused by the air flow directly contacting the shell of the unit main body 10, and at the same time reduces the use of additional heat insulation materials, reduces costs. At the same time, the air guiding member 20 made of EPP injection-molded sponge material can better fit the shape and space of the diversion cavity 12 to form a complete sealed air duct. In the traditional sheet metal structure, the inevitable screw holes and assembly gaps will cause the air volume to flow in the gaps, resulting in losses, while the application of the EPP injection-molded sponge material can effectively avoid this problem.

[0058] Further, referring to Figure 5As shown, a surface of the side of the air guide member 20 facing away from the first channel 11 is protrudingly provided with a plurality of ribs 24, and the plurality of ribs 24 are cross-distributed in a horizontal and vertical direction, thereby improving the overall strength of the air guide member 20 and maintaining the integrity of the overall structure when impacted by airflow, thereby avoiding deformation that affects the guiding function of the diversion portion 222.

[0059] Based on the heat pump unit provided in the above embodiment, an air guide 20 is arranged in the unit body 10, and a plurality of diverter portions 222 are convexly provided on the air guide 20. The diverter portions 222 have a uniform and smooth curved surface design. The airflow is guided by the diverter portions 222 and can be smoothly deflected along the curved surface to achieve more uniform and smooth air outlet, thereby improving heat exchange efficiency and increasing energy efficiency.

[0060] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A heat pump unit, characterized in that: include: A unit body, wherein the unit body has a first channel and a flow guide cavity inside, the first channel is connected to one side of the flow guide cavity, and the flow guide cavity includes a plurality of air outlets dispersedly arranged around the first channel; An air guide member is disposed in the guide cavity, the air guide member comprises a support portion and an air guide portion, the support portion is disposed opposite to the first channel and has a first surface facing the first channel, the air guide portion is disposed on the first surface, and the air guide portion is a convex structure disposed convexly relative to the first surface; in, The air guide portion has a raised vertex portion corresponding to the position of the first channel and a plurality of diversion portions distributed around the raised vertex portion. The raised thickness of each diversion portion relative to the first surface gradually decreases from the raised vertex portion toward a corresponding air outlet. The airflow entering the guide cavity from the first channel is diverted through the plurality of diversion portions and then discharged from the guide cavity from the plurality of air outlets.

2. The heat pump unit according to claim 1, characterized in that: A surface of each of the diversion portions facing away from the support portion is an arc curved surface.

3. The heat pump unit according to claim 2, characterized in that: The apex of the protrusion is located on the central axis of the first channel.

4. The heat pump unit according to claim 3, characterized in that: The convex vertex portion is located on the center line of the first surface, and the arc radii of the arc surfaces of the plurality of diverter portions are the same.

5. The heat pump unit according to claim 2, characterized in that: Adjacent flow dividing parts form a ridge at the connection, and the surface of the ridge is a smooth curved surface.

6. The heat pump unit according to claim 1, characterized in that: The number of the air outlets is three, and the three air outlets are respectively located on the bottom surface of the guide cavity and two laterally opposite side surfaces, and the diverter portions are arranged in one-to-one correspondence with the air outlets.

7. The heat pump unit according to claim 6, characterized in that: The wind guide also includes a wind shielding portion, which is arranged along the top edge of the supporting portion and extends toward the side where the first channel is located.

8. The heat pump unit according to claim 1, characterized in that: The height of the convex vertex relative to the first surface is 1 / 3 to 1 / 2 times the distance from the first channel to the first surface.

9. The heat pump unit according to claim 1, characterized in that: The longest distance from the apex of the protrusion to any of the air outlets is less than or equal to a preset value, and the preset value is 10 times the height of the apex of the protrusion relative to the first surface.

10. The heat pump unit according to claim 1, characterized in that: The material of the air guide piece is an EPP injection-molded sponge air guide piece.

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