Headwind prevention device of multi-connected outdoor unit

Abstract

The utility model discloses an anti-headwind device of a multi-connected outdoor unit, which comprises a multi-connected outdoor unit component, a fan mechanism capable of keeping axial rotation is arranged in the multi-connected outdoor unit component, and a ratchet mechanism is arranged at the end of the fan mechanism to drive the fan mechanism to keep unidirectional rotation. The outer wall of the multi-connected outdoor unit assembly is provided with an anti-headwind assembly capable of keeping open and close corresponding to the fan mechanism, and the fan mechanism is driven to keep axial rotation so as to drive the anti-headwind assembly to keep open. According to the anti-headwind device of the multi-connected outdoor unit, the tooth claw and the clamping claw which are clamped in the arc shape are arranged at the end of the rotating shaft, so that the rotating shaft can only rotate in one direction and cannot rotate in the reverse direction; and through windproof plates which are arranged on the two opposite sides of the blocking column and can rotate in the axial direction, when the fan blades rotate, the windproof plates can be blown to be opened for exhausting air, and when the fan blades do not move, the windproof plates abut against the outer wall of the blocking column, so that the headwind prevention assembly is closed, and after external wind blows the windproof plates, the windproof plates can be squeezed inwards.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-split outdoor units, in particular to a headwind prevention device for a multi-split outdoor unit. Background Art

[0002] One or several outdoor units can be connected to a single refrigeration cycle system consisting of several direct evaporative indoor units of different or same type and capacity, which can directly provide treated air to one or several areas.

[0003] For example, patent CN205536254U discloses a device for preventing the reversal of a cooling fan, the device comprising: a frame, the frame is used to be arranged on the outside of the cooling fan; a grille, the grille is arranged at the air inlet of the frame, and is movably connected to the frame, and is used to change the air inlet direction of the frame by controlling the movement of the grille. By setting a rotatable grille at the air outlet of the outdoor unit and controlling the angle of the grille, the headwind blowing into the inside of the outdoor unit is reduced, and the high-speed reversal in the initial stage of the cooling fan motor drive is prevented from causing the motor to start failure, so as to achieve the purpose of starting the variable frequency air conditioner under different external wind conditions. At the same time, the closed grille can also reduce the entry of foreign matter and dust into the interior of the air conditioner outdoor unit, thereby improving the cleanliness of the system.

[0004] In actual operation, the fan blades of most multi-split outdoor units are directly exposed to the outside world and are easily reversed by the external wind. When external forces cause the outdoor unit fan to rotate in the opposite direction, the torque of the shaft will increase, causing damage to the fan blades.

[0005] It can be seen that the above-mentioned problems existing in the prior art need to be improved urgently. Utility Model Content

[0006] In view of the above-mentioned problems existing in the prior art, one aspect of the utility model is to provide a multi-split outdoor unit anti-backwind device to solve the problems that the fan blades of the multi-split outdoor unit are exposed to the outside and are easily reversed due to external wind force, and when the fan reverses, the torque of the rotating shaft will increase, causing damage to the fan blades.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a multi-split outdoor unit anti-backwind device, including a multi-split outdoor unit assembly, the interior of the multi-split outdoor unit assembly is provided with a fan mechanism that can maintain axial rotation, the end of the fan mechanism is provided with a ratchet mechanism to drive the fan mechanism to maintain unidirectional rotation, the outer wall of the multi-split outdoor unit assembly is provided with an anti-backwind assembly that can be kept open and closed corresponding to the fan mechanism, and the fan mechanism is driven to maintain axial rotation to drive the anti-backwind assembly to remain open.

[0008] Preferably, the multi-split outdoor unit assembly comprises an outer unit housing, an inner groove is formed inside the outer unit housing, and a fan mechanism is disposed inside the inner groove.

[0009] Preferably, the fan mechanism specifically comprises a rotating shaft, an outer wall of the rotating shaft is provided with fan blades distributed in a circular array, and a ratchet mechanism is provided at the junction of the rotating shaft and the inner groove.

[0010] Preferably, the ratchet mechanism specifically includes teeth and claws distributed in a circular array on the outer wall of the rotating shaft, and the outer wall of the inner groove is provided with a claw, the teeth and claws are connected with each other in an arc, and the claw is clamped between each of the teeth and claws to abut against each of the teeth and claws.

[0011] By arranging teeth and claws that are connected to each other in an arc shape at the end of the rotating shaft, the rotating shaft can only rotate in one direction and cannot rotate in the reverse direction.

[0012] Preferably, the anti-headwind component includes a supporting shell symmetrically arranged on the outer wall of the outer machine shell, the supporting shell specifically has a triangular structure, and blocking columns are connected between each of the symmetrical supporting shells.

[0013] Preferably, wind shielding plates capable of maintaining axial rotation are provided on opposite sides of the blocking column to drive the anti-windward component to form a triangular prism with one end open and aligned with the fan mechanism.

[0014] Axially rotatable wind shields are arranged on opposite sides of the barrier column. When the fan blades rotate, the wind shields can be blown open to exhaust air. When the fan blades are stationary, the wind shields are against the outer walls of the barrier column to close the anti-windward components. When wind blows from the outside, the wind shields can be squeezed inwards to avoid being blown open and allow wind to enter the interior.

[0015] Beneficial effects:

[0016] Compared with the prior art, the utility model provides a multi-connected outdoor unit anti-wind device, which has the following beneficial effects:

[0017] 1. By arranging teeth and claws that are connected to each other in an arc shape at the end of the rotating shaft, the rotating shaft can only rotate in one direction and cannot rotate in the opposite direction.

[0018] 2. Through the axially rotatable wind shields arranged on the opposite sides of the baffle column, when the fan blades rotate, the wind shields can be blown open to exhaust air. When the fan blades are stationary, the wind shields are against the outer wall of the baffle column to close the anti-wind component. When there is wind blowing from the outside, each wind shield can be squeezed inward to avoid being blown open and allow wind to enter the inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the structure of a multi-split outdoor unit provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the structure of a ratchet mechanism provided in an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the structure of a top-down cross-section of an anti-headwind component provided in an embodiment of the utility model.

[0023] Main reference numerals:

[0024] 1. Multi-split outdoor unit assembly; 2. Anti-wind component; 101. External unit housing; 102. Inner tank; 103. Rotating shaft; 104. Tooth claw; 105. Clamping claw; 106. Fan blade; 201. Support housing; 202. Block column; 203. Wind shield. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-3 As shown, a multi-split outdoor unit anti-backwind device includes a multi-split outdoor unit component 1, a fan mechanism capable of maintaining axial rotation is arranged inside the multi-split outdoor unit component 1, a ratchet mechanism is arranged at the end of the fan mechanism to drive the fan mechanism to maintain unidirectional rotation, an anti-backwind component 2 capable of maintaining opening and closing is arranged on the outer wall of the multi-split outdoor unit component 1 corresponding to the fan mechanism, and the fan mechanism is driven to maintain axial rotation to drive the anti-backwind component 2 to remain open.

[0027] The main purpose of the anti-reverse wind device of the multi-split outdoor unit is to set claws 104 and claws 105 that are connected to each other in an arc shape at the end of the rotating shaft 103, so that the rotating shaft 103 can only rotate in one direction and cannot rotate in the opposite direction; and through the wind shields 203 that can rotate axially on the opposite sides of the blocking column 202, when the fan blades 106 rotate, the wind shields 203 can be blown open to exhaust air. When the fan blades 106 are stationary, the wind shields 203 are all against the outer wall of the blocking column 202 to close the anti-reverse wind component 2. When there is wind blowing from the outside, each wind shield 203 can be squeezed inward to avoid being blown open, so that wind can enter the interior.

[0028] In the technical solution provided by this utility, Figure 1 , Figure 2 and Figure 3 It can be seen that the multi-split outdoor unit assembly 1 includes an external unit housing 101, and an internal groove 102 is provided inside the external unit housing 101, and a fan mechanism is provided inside the internal groove 102, which can convert the internal and external air wind force of the multi-split outdoor unit.

[0029] Furthermore, the fan mechanism specifically includes a rotating shaft 103, and the outer wall of the rotating shaft 103 is also provided with fan blades 106 distributed in a circular array. Through the rotation of the fan blades 106, the internal wind can be discharged outward for air replacement, and a ratchet mechanism is also provided at the junction of the rotating shaft 103 and the inner groove 102, which can enable the fan mechanism to rotate in one direction and avoid reverse rotation.

[0030] Furthermore, the ratchet mechanism specifically includes teeth claws 104 distributed in a circular array on the outer wall of the rotating shaft 103, and a claw 105 is also provided inside the inner groove 102, and the claw 105 can rotate axially, and through the axial rotation of the rotating shaft 103, and then through the arc-shaped connection between the claw 105 and the teeth claw 104, the claw 105 can be engaged between each teeth claw 104 in turn, and when the rotating shaft 103 attempts to reverse, the claw 105 will abut against the teeth claw 104 to prevent the rotating shaft 103 from reversing, so that the fan mechanism can only rotate in one direction.

[0031] In the technical solution provided by this utility, Figure 1 and Figure 3 It can be seen that the anti-headwind component 2 includes a supporting shell 201 symmetrically arranged on the outer wall of the external unit housing 101, and the supporting shell 201 is specifically a triangular structure, and each symmetrical supporting shell 201 is provided with a blocking column 202 between the end corners away from the external unit housing 101, which can reinforce the strength of the entire anti-headwind component 2.

[0032] Furthermore, each of the blocking columns 202 is symmetrically provided with wind shields 203 that can maintain axial rotation on the opposite sides of the outer walls. When the fan blades 106 rotate, each of the wind shields 203 can be blown open, so that the inner groove 102 is connected to the outside, thereby performing heat dissipation and ventilation work; when the fan blades 106 stop rotating, the ends of each of the wind shields 203 away from the inner groove 102 are tilted inward and abut against the outer walls of the blocking columns 202, so that the anti-windward component 2 forms a triangular prism that is open near the end of the inner groove 102, and when the external wind blows towards the wind shield 203, the wind shield 203 can only be closed tighter and cannot be opened.

[0033] Working principle: First, when the fan blades 106 rotate to dissipate heat, each windshield plate 203 can be blown open to allow the inner tank 102 to communicate with the outside world;

[0034] At this time, the claw 105 is connected to the tooth claw 104 in an arc shape, so that the claw 105 can be sequentially connected between the tooth claws 104. When the external wind blows toward the inner groove 102, the claw 105 will abut against the tooth claw 104 to prevent the rotating shaft 103 from reversing, so that the fan mechanism can only rotate in one direction.

[0035] When the fan blades 106 stop rotating, the ends of each wind shield 203 away from the inner groove 102 are tilted inward and abut against the outer wall of the blocking column 202, so that the anti-wind component 2 forms a triangular prism that is open near the end of the inner groove 102, and when the external wind blows towards the wind shield 203, the wind shield 203 can only be closed tighter and cannot be opened, thereby preventing the external wind from blowing onto the fan blades 106, thereby preventing reversal.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for preventing adverse winds of a multi-unit outdoor unit, characterized in that: The invention comprises a multi-split outdoor unit assembly (1), wherein a fan mechanism capable of maintaining axial rotation is arranged inside the multi-split outdoor unit assembly (1), a ratchet mechanism is arranged at the end of the fan mechanism to drive the fan mechanism to maintain unidirectional rotation, and an anti-reverse wind assembly (2) capable of maintaining opening and closing is arranged on the outer wall of the multi-split outdoor unit assembly (1) corresponding to the fan mechanism, and the fan mechanism is driven to maintain axial rotation to drive the anti-reverse wind assembly (2) to remain open.

2. The anti-wind device for a multi-split outdoor unit according to claim 1, characterized in that: The multi-split outdoor unit assembly (1) comprises an external unit housing (101), an internal groove (102) is provided inside the external unit housing (101), and a fan mechanism is provided inside the internal groove (102).

3. The anti-wind device for a multi-split outdoor unit according to claim 2, characterized in that: The fan mechanism specifically comprises a rotating shaft (103), the outer wall of the rotating shaft (103) is provided with fan blades (106) distributed in a circular array, and a ratchet mechanism is provided at the junction of the rotating shaft (103) and the inner groove (102).

4. The anti-wind device for a multi-split outdoor unit according to claim 3, characterized in that: The ratchet mechanism specifically comprises teeth and claws (104) distributed in a circular array on the outer wall of the rotating shaft (103); the outer wall of the inner groove (102) is provided with a claw (105); the teeth and claws (104) and the claws (105) are connected in an arc; the claw (105) is clamped between each of the teeth and claws (104) to abut against each of the teeth and claws (104).

5. The anti-wind device for a multi-split outdoor unit according to claim 2, characterized in that: The headwind prevention component (2) comprises a support shell (201) symmetrically arranged on the outer wall of the external machine shell (101); the support shell (201) is specifically in a triangular structure; and blocking columns (202) are connected between each of the symmetrical support shells (201).

6. The anti-wind device for a multi-split outdoor unit according to claim 5, characterized in that: Wind shielding plates (203) capable of maintaining axial rotation are arranged on opposite sides of the blocking column (202) to drive the anti-wind component (2) to form a triangular prism with one end open and aligned with the fan mechanism.

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