Air source heat pump unit with defrosting function

Abstract

The utility model discloses an air source heat pump unit with a defrosting function, which relates to the technical field of air source heat pump equipment and comprises an air source heat pump unit body, a collecting mechanism is arranged in the air source heat pump unit body, and two groups of limiting plates which are symmetrically arranged are fixedly connected to the outer side wall of the air source heat pump unit body. A limiting rod is fixedly connected between the two sets of limiting plates at one end, a lead screw is rotationally connected between the two sets of limiting rods at the other end, a defrosting mechanism is arranged between the lead screw and the limiting rod, and a servo motor drives the lead screw to rotate, so that an adjusting sleeve can horizontally move along the lead screw, the heating effect of an electric heating rod and hot air blowing of a draught fan are achieved; frost at the upper ends of the grating net and the heat pump unit fan can be rapidly and effectively heated and melted, the adjusting sleeve horizontally moves to drive the second extending plate at the bottom to synchronously move, and the frost on the grating net can be thoroughly cleaned through cooperative work of the fixing plate, the rotating rod and the cleaning sleeve which are arranged at the upper end.

Description

TECHNICAL FIELD

[0001] The utility model relates to air source heat pump machine equipment technical field, specifically a kind of air source heat pump unit with defrosting function. BACKGROUND

[0002] Air source heat pump unit is a kind of high-efficiency heat pump system using air as heat source or cold source. It absorbs heat from the outside air in winter and transfers it to the building, or discharges the heat in the building to the outside air in summer, so as to realize heating, refrigeration or provide hot water and other functions. Due to its energy-saving, efficient and environmentally friendly characteristics, air source heat pump is widely used in temperature control systems of residential, commercial buildings and industrial facilities.

[0003] During the operation of air source heat pump unit, especially in low temperature environment, frost may occur. After the fan blades are frosted, air flow will be blocked, affecting heat exchange efficiency and reducing heating efficiency. The frost on the grid set on the air source heat pump unit will affect air flow and also affect heat exchange efficiency. Therefore, the skilled person in the art provides an air source heat pump unit with defrosting function to solve the problems raised in the above background. SUMMARY

[0004] The purpose of the utility model is to provide an air source heat pump unit with defrosting function to solve the problems raised in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] An air source heat pump unit with defrosting function includes an air source heat pump unit body, a collection mechanism and a defrosting mechanism. The air source heat pump unit body is equipped with a fan at both ends. An air inlet slot is formed on the outer wall of the air source heat pump unit body near the fan, and a grid is fixedly connected to the upper end of the air inlet slot. The air source heat pump unit body is provided with a collection mechanism. Two pairs of symmetrical limiting plates are fixedly connected to the outer side wall of the air source heat pump unit body. A limiting rod is fixedly connected between the two limiting plates at one end. A lead screw is rotatably connected between the two limiting plates at the other end. A servo motor is fixedly connected to the limiting plate near the lead screw. The power output end of the servo motor penetrates through the limiting plate and is fixedly connected to the lead screw. The defrosting mechanism is arranged between the lead screw and the limiting rod.

[0007] As a further scheme of the utility model: the adjusting sleeve is provided between the lead screw and the limiting rod, the adjusting sleeve is in threaded connection with the lead screw and is in sliding connection with the limiting rod, a limiting assembly is in sliding connection between the adjusting sleeve and the air source heat pump unit body, a first extension plate is fixedly connected to the upper end of the adjusting sleeve, two groups of cavities are formed in the first extension plate, heating rods are fixedly connected in the cavities, and a second extension plate is fixedly connected to the bottom of the adjusting sleeve.

[0008] As a further scheme of the utility model: the second extension plate is fixedly connected with a pair of two groups of symmetrically arranged fixing plates at one end close to the grid net, a rotating rod is fixedly connected between the two groups of fixing plates, a plurality of cleaning sleeves are rotatably connected to the outer side walls of the rotating rod, and a plurality of cleaning brushes are arranged on the outer side walls of the cleaning sleeves.

[0009] As a further scheme of the utility model: the adjusting sleeve is fixedly connected with an L-shaped support seat at one end away from the grid net, and two groups of fans are rotatably connected to the L-shaped support seat at one end close to the grid net.

[0010] As a further scheme of the utility model: a first water collecting disc is fixedly connected to the bottom end of the heat pump unit fan located inside the air source heat pump unit body and above, a second water collecting disc is fixedly connected to the bottom end of the heat pump unit fan located inside the air source heat pump unit body and below, a drain pipe is fixedly connected and penetrates between the first water collecting disc and the second water collecting disc, a drain pipe is fixedly connected and penetrates one end of the side wall of the second water collecting disc, a drain port is fixedly connected to the side wall of the air source heat pump unit body, and the drain port is fixedly connected with the drain pipe.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. Because the defrosting mechanism is arranged, the servo motor drives the lead screw to rotate, so that the adjusting sleeve can move horizontally along the lead screw, the heating effect of the electric heating rod and the hot air blowing of the fan can quickly and effectively heat and melt the ice and frost on the grid net and the top end of the heat pump unit fan, the horizontal movement of the adjusting sleeve drives the second extension plate at the bottom to move synchronously, through the cooperative work of the fixing plates, the rotating rod and the cleaning sleeves arranged at the top end, the ice and frost on the grid net can be completely cleaned, the ice and frost can be efficiently melted, and cleaning can be immediately performed after melting, so that the ice and frost is prevented from re-icing;

[0013] 2. Because the collecting mechanism is arranged, the melted ice and frost is collected in the first water collecting disc and the second water collecting disc, water accumulation around the equipment can be effectively avoided, potential damage caused by water drops directly falling on the equipment or the ground is prevented, water flows into the second water collecting disc through the drain pipe, and is discharged through the drain pipe, so that water accumulation around the unit is avoided, and the influence of accumulated water on the heat pump unit, the fan, electrical elements and other components is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1It is a structural schematic view of an air source heat pump unit with defrosting function.

[0015] Figure 2 It is a structural schematic view of a limiting rod and a lead screw in an air source heat pump unit with defrosting function.

[0016] Figure 3 It is a structural schematic view of an adjusting sleeve in an air source heat pump unit with defrosting function.

[0017] Figure 4 It is a partial side structural schematic view of an air source heat pump unit body in an air source heat pump unit with defrosting function.

[0018] In the figure: 1, air source heat pump unit body; 2, limiting plate; 3, limiting rod; 4, lead screw; 5, servo motor; 6, adjusting sleeve; 7, limiting assembly; 8, first extension plate; 9, heating rod; 10, second extension plate; 11, fixed plate; 12, rotating rod; 13, cleaning sleeve; 14, L-shaped support seat; 15, fan; 16, heat pump unit fan; 17, grating net; 18, first water receiving tray; 19, second water receiving tray; 20, drain pipe; 21, drain pipe; 22, drain port. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Embodiment 1

[0021] Reference Figures 1-4This embodiment provides an air source heat pump unit with defrosting function, including an air source heat pump unit body 1, a limiting plate 2, a limiting rod 3, a lead screw 4, a servo motor 5, an adjusting sleeve 6, a limiting assembly 7, a first extension plate 8, a heating rod 9, a second extension plate 10, a fixing plate 11, a rotating rod 12, a cleaning sleeve 13, an L-shaped support base 14, a fan 15, a heat pump unit fan 16, a grille 17, a first water receiving tray 18, a second water receiving tray 19, a drain pipe 20, a drain pipe 21, and a drain outlet 22; the air source heat pump unit body 1 is equipped with fans 15 at both the upper and lower ends, and the air source heat pump... An air inlet slot is provided on the upper part of the outer wall of the unit body 1 near the fan 15, and a grid screen 17 is fixedly connected to the upper part of the air inlet slot. A collection mechanism is provided inside the air source heat pump unit body 1. Two sets of symmetrically arranged limit plates 2 are fixedly connected to the outer wall of the air source heat pump unit body 1. A limit rod 3 is fixedly connected between the two sets of limit plates 2 at one end, and a lead screw 4 is rotatably connected between the two sets of limit plates 2 at the other end. A servo motor 5 is fixedly connected to the upper part of the limit plate 2 near the lead screw 4. The power output end of the servo motor 5 passes through the limit plate 2 and is fixedly connected to the lead screw 4. A defrosting mechanism is provided between the lead screw 4 and the limit rod 2.

[0022] Example 2

[0023] Reference Figure 1 , 2 3. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that an adjusting sleeve 6 is provided between the lead screw 4 and the limiting rod 2. The adjusting sleeve 6 is threadedly connected to the lead screw 4 and slidably connected to the limiting rod 2. A limiting component 7 is slidably connected between the adjusting sleeve 6 and the air source heat pump unit body 1. A first extension plate 8 is fixedly connected to the upper end face of the adjusting sleeve 6. Two sets of cavities are opened in the first extension plate 8, and heating rods 9 are fixedly connected in each cavity. A second extension plate 10 is fixedly connected to the bottom of the adjusting sleeve 6. A pair of two sets of symmetrically arranged fixing plates 11 are fixedly connected to the end of the second extension plate 10 near the grid 17. A rotating rod 12 is fixedly connected between the two sets of fixing plates 11. Multiple sets of cleaning sleeves 13 are rotatably connected to the outer wall of the rotating rod 12. Multiple sets of cleaning brushes are provided on the outer wall of the cleaning sleeve 13. An L-shaped support seat 14 is fixedly connected to the end of the adjusting sleeve 6 away from the grid 17. Two sets of fans 15 are rotatably connected to the end of the L-shaped support seat 14 near the grid 17.

[0024] Start the servo motor 5, which drives the lead screw 4 to rotate. The lead screw 4 drives the adjusting sleeve 6 connected to the outer wall thread to cooperate. The adjusting sleeve 6 is limited by the limiting component 7 and the limiting rod 3, and then moves horizontally at the upper end of the lead screw 4.

[0025] The electric heating rod at the upper end of the first extension plate 8 is started, frost on the upper end of the grid net 17 is heated and melted, and the fan 15 arranged at the upper end of the L-shaped support base 14 is started to blow air, the air becomes hot air through the heating rod 9 and is blown on the grid net 17 and the upper end of the heat pump unit fan 16 to melt the ice and frost generated at the upper end, the second extension plate 10 at the bottom is moved synchronously by the adjusting sleeve 6, and the ice and frost remaining at the upper end of the grid net 17 is cleaned through the fixed plate 11, the rotating rod 12 and the cleaning sleeve 13 arranged at the upper end.

[0026] Embodiment 3

[0027] With reference to Figure 1 、 4 This embodiment is based on the previous embodiment, and differs from the previous embodiment in that the heat pump unit fan 16 arranged inside the air source heat pump unit body 1 and at the upper end is fixedly connected with a first water receiving tray 18 at the bottom end, the heat pump unit fan 16 arranged inside the air source heat pump unit body 1 and at the lower end is fixedly connected with a second water receiving tray 19 at the bottom end, a drain pipe 20 is penetrated through and fixedly connected between the first water receiving tray 18 and the second water receiving tray 19, a drain pipe 21 is penetrated through and fixedly connected with one end of the side wall of the second water receiving tray 19, and a drain opening 22 is fixedly connected with the side wall of the air source heat pump unit body 1 and is fixedly connected with the drain pipe 21.

[0028] The ice and frost at the upper end of the heat pump unit fan 16 are melted into water and fall on the upper end of the first water receiving tray 18 and the second water receiving tray 19 respectively, the water in the first water receiving tray 18 flows into the second water receiving tray 19 through the drain pipe 20, and the second water receiving tray 19 drains the water through the drain pipe 21 and the drain opening 22.

[0029] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and not limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to which the reference signs relate.

[0030] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An air source heat pump unit with defrosting function, comprising an air source heat pump unit body (1), a collecting mechanism and a defrosting mechanism, characterized in that, The air source heat pump unit body (1) is provided with a fan (15) at both ends, an air inlet groove is formed in the outer wall of the air source heat pump unit body (1) near the fan (15), and a grid (17) is fixedly connected to the upper end of the air inlet groove; a collecting mechanism is arranged in the air source heat pump unit body (1); two groups of symmetrical limiting plates (2) are fixedly connected to the outer wall of the air source heat pump unit body (1); a limiting rod (3) is fixedly connected between the two groups of limiting plates (2) at one end; a lead screw (4) is rotatably connected between the two groups of limiting plates (2) at the other end; a servo motor (5) is fixedly connected to the upper end of the limiting plate (2) near the lead screw (4); the power output end of the servo motor (5) penetrates through the limiting plate (2) and is fixedly connected with the lead screw (4); and a defrosting mechanism is arranged between the lead screw (4) and the limiting rod (3).

2. The air source heat pump unit with defrosting function according to claim 1, characterized in that, The defrosting mechanism comprises a heating rod (9) and a cleaning sleeve (13); an adjusting sleeve (6) is arranged between the lead screw (4) and the limiting rod (3); the adjusting sleeve (6) is threadedly connected with the lead screw (4) and slidably connected with the limiting rod (3); and a limiting assembly (7) is slidably connected between the adjusting sleeve (6) and the air source heat pump unit body (1).

3. The air source heat pump unit with defrosting function according to claim 2, characterized in that, A first extension plate (8) is fixedly connected to the upper end face of the adjusting sleeve (6); two groups of cavities are formed in the first extension plate (8); and a heating rod (9) is fixedly connected in each cavity.

4. The air source heat pump unit with defrosting function according to claim 3, characterized in that, A pair of two groups of symmetrical fixing plates (11) are fixedly connected to one end of the second extension plate (10) near the grid (17); a rotating rod (12) is fixedly connected between the two groups of fixing plates (11); a plurality of cleaning sleeves (13) are rotatably connected to the outer wall of the rotating rod (12); and a plurality of cleaning brushes are arranged on the outer wall of the cleaning sleeve (13).

5. The air source heat pump unit with defrosting function according to claim 3, characterized in that, An L-shaped support seat (14) is fixedly connected to one end of the adjusting sleeve (6) away from the grid (17); and two groups of fans (15) are rotatably connected to one end of the L-shaped support seat (14) near the grid (17).

6. The air source heat pump unit with defrosting function according to claim 1, characterized in that, The collecting mechanism comprises a first water collecting disc (18) and a second water collecting disc (19); the bottom end of the heat pump unit fan (16) located above the air source heat pump unit body (1) is fixedly connected with the first water collecting disc (18); the bottom end of the heat pump unit fan (16) located below the air source heat pump unit body (1) is fixedly connected with the second water collecting disc (19); and a drain pipe (20) penetrates through and is fixedly connected between the first water collecting disc (18) and the second water collecting disc (19).

7. The air source heat pump unit with defrosting function according to claim 6, characterized in that, A drain pipe (21) penetrates through and is fixedly connected to one end of the side wall of the second water collecting disc (19); and a drain port (22) is fixedly connected to the side wall of the air source heat pump unit body (1); and the drain port (22) is fixedly connected with the drain pipe (21).

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