WO2013040774A1 - 一种带三元矢量风口的冰箱风道结构 - Google Patents

一种带三元矢量风口的冰箱风道结构 Download PDF

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Publication number
WO2013040774A1
WO2013040774A1 PCT/CN2011/079981 CN2011079981W WO2013040774A1 WO 2013040774 A1 WO2013040774 A1 WO 2013040774A1 CN 2011079981 W CN2011079981 W CN 2011079981W WO 2013040774 A1 WO2013040774 A1 WO 2013040774A1
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Prior art keywords
bracket
air duct
stepping motor
refrigerator
tuyere
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PCT/CN2011/079981
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English (en)
French (fr)
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李志鹏
杨春华
翟会杰
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海信容声(广东)冰箱有限公司
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Priority to PCT/CN2011/079981 priority Critical patent/WO2013040774A1/zh
Publication of WO2013040774A1 publication Critical patent/WO2013040774A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements

Definitions

  • the invention belongs to the technical field of refrigerator equipment, and particularly relates to a refrigerator air duct structure with a ternary vector tuyere.
  • the air duct of the refrigerator is divided into a single duct structure and a multi-duct structure, as shown in FIG. 9 and FIG.
  • the air outlet is a single point, the air supply is uneven, the temperature inside the box is not uniform, the air passage is generally short, the structure is simple, the cost is low, and the occupied space is small;
  • the 10 is a structure of a multi-duct duct 30, which is characterized in that: the air outlet is multi-point, the air distribution is evenly distributed in the space, and the temperature inside the refrigerator is uniform, and the air passage is generally long, the cost is high, and the space is occupied. Leave less space for users to use.
  • the problem to be solved by the present invention is to provide a refrigerator air duct structure with a ternary vector tuyere capable of controlling the wind direction, realizing the right and left sides of the tuyere, and swinging up and down in view of the deficiencies of the prior art.
  • the air duct structure of the refrigerator has uniform air supply and a small occupied space.
  • the refrigerator air duct structure has a uniform internal temperature of the refrigerator.
  • the technical solution of the present invention is: a refrigerator air duct structure with a ternary vector tuyere, comprising a duct cover connected to an air duct, the air duct cover being disposed along a plurality of directions
  • the swinging universal joint steering mechanism has a tuyere on the universal joint steering mechanism.
  • the universal joint steering mechanism can swing in the right, left, and right directions at the same time.
  • the universal joint steering mechanism includes a first bracket, a second bracket, a first stepping motor and a second stepping motor, the first bracket is a ring bracket, and the second bracket is a spherical structure.
  • the diameter of the inner ring of the first bracket coincides with the outer diameter of the second bracket, and the upper end is a rotating shaft for clamping the air duct cover and enabling the first bracket to rotate, and the lower end is opposite to the rotating shaft provided by the first stepping motor.
  • one end of the second bracket is provided with a small rotating shaft assembled with the first bracket, and the second stepping motor is assembled with the second bracket, and the rotating shaft of the second stepping motor is on the same axis as the small rotating shaft of the second bracket.
  • the tuyere is disposed at an intermediate position within the second bracket.
  • the stepping motor is an actuator that converts electric pulses into angular displacements, and the direction of the tuyere can be swung in four directions of up, down, left, and right.
  • the second bracket is a hemispherical structure.
  • the hemispherical structure adopts a small footprint.
  • the tuyere is provided with a shroud that prevents turbulence when the cold air comes out of the tuyere.
  • the shroud is used to prevent the airflow from diffusing or free jetting in a space that is not restricted by the surrounding interface, and to avoid turbulence when the gas comes out.
  • the rotating shaft of the stepping second stepping motor is fixedly connected to the first bracket through a connecting block provided with a shaft hole.
  • the connecting block is provided with a screw hole, and the second stepping motor and the connecting block are fixed on the first bracket by a screw passing through the screw hole.
  • the first stepping motor is assembled and fixed by a screw with a duct cover.
  • the air duct cover is provided with a reinforcing rib inside, the reinforcing rib has a card slot, and the upper end of the first bracket has a rib of a reinforcing rib that is inserted into the outer diameter of the rotating shaft.
  • the rotating shaft of the first stepping motor is a semicircular rotating shaft
  • the lower end rotating shaft of the first bracket has a semicircular hole which is fitted with the semicircular rotating shaft of the first stepping motor.
  • the present invention has the following beneficial effects:
  • the invention can achieve uniform distribution of the air volume in the box and uniform temperature in the box with a small air outlet, so that the food stored in the refrigerator can obtain a uniform cooling amount.
  • the small volume of the air duct also increases the user's use volume, increases product functions and selling points, and improves product quality.
  • the ternary vector tuyere of the invention breaks the current status of the existing fixed tuyere, realizes the high-tech transformation of the function of the refrigerator, is smaller than the multi-duct air outlet of the air-cooled refrigerator, has more wind direction and is easy to realize, and makes the internal temperature of the refrigerator more Uniform, which enhances the functionality of the product and increases the selling point.
  • Figure 1 is an exploded view of the air duct component of the present invention
  • Figure 2 is a perspective view of the air passage component of the present invention.
  • Figure 3 is a schematic view of the universal joint steering mechanism of the present invention.
  • Figure 4 is a schematic view of the tuyere component of the present invention moving to the left;
  • Figure 5 is a schematic view showing the operation of the tuyere member of the present invention to the right;
  • Figure 6 is a schematic view showing the upward movement of the tuyere component of the present invention.
  • Figure 7 is a schematic view showing the downward movement of the tuyere member of the present invention.
  • Figure 8 is a schematic view of the tuyere component of the present invention linked up and down, left and right;
  • Figure 9 is a schematic view showing the structure of a single air passage in a refrigerator.
  • Figure 10 is a schematic view showing the structure of a multi-duct in a refrigerator.
  • the present invention discloses a refrigerator air duct structure with a ternary vector tuyere, including a duct cover 7 connected to an air duct and a universal joint steering mechanism, and the universal joint steering mechanism can Swinging in several directions, the universal joint steering mechanism is provided with a tuyere.
  • the universal joint steering mechanism can swing in the right, left, and right directions at the same time.
  • the universal joint steering mechanism includes a first bracket 1, a second bracket 2, a first stepping motor 3, and a second stepping motor 4.
  • the first bracket 1 is a ring bracket
  • the second bracket 2 is a spherical surface.
  • the inner ring diameter of the first bracket 1 coincides with the outer diameter of the second bracket 2, and the upper end is a rotating shaft for clamping the air duct cover 7 and enabling the first bracket 1 to rotate, and the lower end is the first step
  • the rotating shaft of the motor 3 is equipped with a rotating shaft
  • the second bracket 2 is provided with a small rotating shaft assembled with the first bracket 1 , the second stepping motor 4 and the second bracket 2 are assembled, and the rotating shaft of the second stepping motor 4
  • the tuyere is disposed at an intermediate position in the second bracket 2, so that the air volume can be ejected in a predetermined direction
  • a shroud 5 is disposed at the tuyere, and is disposed in the
  • the entire air passage member is connected to the air passage through the air duct cover 7.
  • the air duct cover 7 is provided with a reinforcing rib 8 inside, and the reinforcing rib 8 has a card slot.
  • the upper end of the first bracket 1 is a rotating shaft, and the locking hole of the reinforcing rib 8 is inserted into the outer diameter of the rotating shaft; the lower end of the first bracket 1 is also the same It is a rotating shaft, and a semi-circular hole is left in the inside, and is fixedly assembled with the semi-circular rotating shaft of the first stepping motor 3, and the first stepping motor 3 is assembled and fixed with the air duct cover 7 through the screw 11.
  • the first stepping motor 3 rotates, the first 3 bracket 1 rotates left and right.
  • 4 and 5 are schematic views showing the operation of the tuyere member to the left and right, respectively.
  • the second bracket 2 has a hemispherical structure, the second stepping motor 4 is mounted inside the second bracket 2, the second stepping motor 4 is assembled with the second bracket 2 by the screw 10, and the rotating shaft of the second stepping motor 4 is The small shafts of the two brackets 2 are on the same axis.
  • the rotating shaft of the second stepping motor 4 is tightly engaged with the connecting block 6, and the connecting block 6 is connected to the first bracket 1 by screws 9.
  • the first bracket 1 is connected to the air duct cover 7 through the first stepping motor 3, and the motor shaft rotates, and the second bracket 2 rotates up and down in the first bracket 1.
  • 6 and 7 are schematic views of the upward and downward movement of the tuyere component of the present invention, respectively.
  • the control circuit sends the electrical pulse signal to the first stepping motor 3
  • the first stepping motor 31 rotates the corresponding step angle to control the first bracket 1 to rotate to the left, and the entire universal joint steering mechanism component points to the left side, thereby the tuyere Point to the left.
  • the principle of rightward is similar to this, except that the order of the pulses is changed, and the step angle is opposite, the direction of rotation of the first bracket 1 can be conveniently changed.
  • the control circuit sends the electrical pulse signal to the second stepping motor 4, the second stepping motor 4 rotates the corresponding step angle to control the second bracket 2 to swing upward, so that the tuyere rotates upward and the tuyere points upward.
  • the downward principle is similar to this, except that the step angle is reversed.
  • the swing mode of the tuyere can be set in various modes, such as a double disc line, a sine line, a conical line, a cycloid line, and the like. To meet the storage needs of different foods.
  • the invention can be applied to refrigerators, wine cabinets, beverage boxes, refrigerators and the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

一种带三元矢量风口的冰箱风道结构包括连接在风道的风道盖板（7），所述风道盖板（7）上设有能沿若干个方向摆动的万向节转向机构，万向节转向机构上设有风口，所述万向节转向机构包括第一支架（1）、第二支架（2）、第一步进电机（3）和第二步进电机（4），所述第一支架（1）为环状支架，第二支架（2）为球面形结构。该风道结构通过实现对风口的矢量控制，达到用少的出风口实现箱内的风量均匀分布及箱内温度均匀，从而存放在冰箱的食物能得到均匀的冷量，并减小风道体积，增加用户使用容积。

Description

一种带三元矢量风口的冰箱风道结构
技术领域
本发明属于电冰箱设备技术领域，特别涉及一种带三元矢量风口的冰箱风道结构。
背景技术
一般冰箱风道分为单风道结构及多风道结构，如图9和图10所示。
图9为单风道20的结构，其特点是：出风口为单点，送风不均匀，箱内温度不均匀，该种风道一般较短小，结构简单、成本低，占用空间较小；
图10为多风道30的结构，其特点是：出风口为多点，送风在空间分布较均匀，冰箱内部温度均匀，这种风道一般比较长，成本较高，占用空间较多，留下用户使用的空间减少。
发明内容
本发明要解决的问题是针对现有技术的不足而提供一种能控制风向、实现风口的左右、上下摆动的带三元矢量风口的冰箱风道结构。该冰箱风道结构送风均匀，且占用空间较小。该冰箱风道结构冰箱内部温度均匀。
为实现上述目的，本发明的技术方案为：一种带三元矢量风口的冰箱风道结构，包括连接在风道的风道盖板，所述风道盖板上设有能沿若干个方向摆动的万向节转向机构，万向节转向机构上设有风口。
上述技术方案中，所述万向节转向机构能同时朝左右上下四个方向摆动。
上述技术方案中，所述万向节转向机构包括第一支架、第二支架、第一步进电机和第二步进电机，所述第一支架为环状支架，第二支架为球面形结构，第一支架的内圈直径与第二支架的外直径相吻合，上端为用于卡住风道盖板并使第一支架能转动的转轴，下端为与第一步进电机所设转轴相配合装配的转轴，第二支架一端设有与第一支架装配的小转轴，第二步进电机与第二支架装配，第二步进电机的转轴就与第二支架的小转轴在同一轴线，所述风口设在第二支架内的中间位置。其中步进电机是一种将电脉冲转化为角位移的执行机构，实现风口方向可在朝左右上下四个方向摆动。
上述技术方案中，所述第二支架为半球形结构。采用半球形结构，占用空间比较小。
上述技术方案中，所述风口处设有避免冷风从风口出来时产生紊流的导流罩。导流罩用于防止气流在不受周围界面限制的空间内扩散或自由射流，避免气体出来时产生紊流。
上述技术方案中，所述步进第二步进电机的转轴通过设有轴孔的连接块与第一支架固定连接。
上述技术方案中，所述连接块上设有螺孔，通过穿过螺孔的螺钉将第二步进电机和连接块固定在第一支架上。
上述技术方案中，所述第一步进电机通过螺钉与风道盖板装配固定。
上述技术方案中，所述风道盖板内部设有加强筋，加强筋上有卡槽，第一支架的上端转轴外径卡入的加强筋的卡槽。
上述技术方案中，所述第一步进电机的转轴为半圆转轴，第一支架的下端转轴内部有与第一步进电机的半圆转轴相配合装配的半圆孔。
与现有技术相比，本发明具有如下有益效果：
本发明通过实现风口的矢量控制，就能达到用少的出风口实现箱内的风量均匀分布及箱内温度均匀，从而存放在冰箱的食物能得到均匀的冷量。另一方面小体积的风道也增加用户使用容积，增加产品功能和卖点，提高产品档次。本发明三元矢量风口打破了现有的固定风口的现状，实现冰箱功能的高科技转变，比风冷冰箱的多风道出风口体积更小，风向更多且容易实现，使冰箱内部温度更均匀，从而提高产品的功能及增加了卖点。
附图说明
图1 为本发明风道部件爆炸图；
图2为本发明风道部件立体示意图；
图3为本发明万向节转向机构的示意图；
图4为本发明风口部件向左动作的示意图；
图5为本发明风口部件向右动作示意图；
图6为本发明风口部件向上动作示意图；
图7为本发明风口部件向下动作示意图；
图8为本发明风口部件向上下、左右联动的示意图；
图9为冰箱内单风道结构示意图；
图10为冰箱内多风道结构示意图。
具体实施方式
以下结合实施例及附图对本发明进行详细的描述。
如图1至图8所示，本发明公开了一种带三元矢量风口的冰箱风道结构，包括连接在风道的风道盖板7和万向节转向机构，万向节转向机构能沿若干个方向摆动，万向节转向机构上设有风口。
本实施例中，万向节转向机构能同时朝左右上下四个方向摆动。
具体的，万向节转向机构包括第一支架1、第二支架2、第一步进电机3和第二步进电机4，所述第一支架1为环状支架，第二支架2为球面形结构，第一支架1的内圈直径与第二支架2的外直径相吻合，上端为用于卡住风道盖板7并使第一支架1能转动的转轴，下端为与第一步进电机3所设转轴相配合装配的转轴，第二支架2一端设有与第一支架1装配的小转轴，第二步进电机4与第二支架2装配，第二步进电机4的转轴就与第二支架2的小转轴在同一轴线，所述风口设在第二支架2内的中间位置，为使风量能沿既定的方向喷出，在风口处设置导流罩5，设置在半球形的第二支架2中，避免冷风从风口出来时产生紊流。
本实施例中，整个风道部件通过风道盖板7连接在风道中。
风道盖板7内部设有加强筋8，加强筋8上有卡槽，第一支架1的上端为一转轴，转轴外径卡入的加强筋8的卡槽；第一支架1的下端同样为一转轴，且内部留有一半圆孔，与第一步进电机3的半圆转轴相配合固定装配，另外第一步进电机3通过螺钉11与风道盖板7装配固定。这样第一步进电机3轴转动，则第一3支架1就左右转动。参见图4和图5分别为本发明风口部件向左和向右动作的示意图。
第二支架2为一半球形结构，第二步进电机4装在第二支架2内部，第二步进电机4通过螺钉10与第二支架2装配，第二步进电机4的转轴就与第二支架2的小转轴在同一轴线。第二步进电机4的转轴与连接块6紧配合，连接块6通过螺钉9与第一支架1连接。第一支架1通过第一步进电机3与风道盖板7连接，电机转轴转动，则第二支架2在第一支架1内上下转动。参见图6和图7分别为本发明风口部件向上和向下动作的示意图。
下面对本发明风道中的矢量风口转向的分析：
1. 左右方向的控制：
控制电路发送电脉冲信号到第一步进电机3时，第一步进电机31转动相应的步进角度，控制第一支架1向左转动，整个万向节转向机构部件指向左边，从而风口指向左边。向右原理与此相近似，只是改变脉冲的顺序，步进角度相反，则可以方便的改变第一支架1转动的方向。
2. 上下方向的控制：
控制电路发送电脉冲信号到第二步进电机4时，第二步进电机4转动相应的步进角度，控制第二支架2向上摆动，从而风口向上转动，风口指向上方。向下原理与此相近似，只是步进角度相反。
3. 以上的左右、上下方向的运动可同时进行，达到风口的连续矢量控制，使风口出来的冷风在空间的均匀分布。见图8所示。
联合两个方向的控制，风口的摆动模式可设置多种模式，如双碟线、正弦、圆锥线、摆线等。以满足不同食物的储藏需求。
本发明可以用于冰箱、酒柜、饮料箱、冷柜等。

Claims (10)

  1. 一种带三元矢量风口的冰箱风道结构，包括连接在风道的风道盖板（7），其特征在于：所述风道盖板（7）上设有能沿若干个方向摆动的万向节转向机构，万向节转向机构上设有风口。
  2. 根据权利要求1所述的带三元矢量风口的冰箱风道结构，其特征在于：所述万向节转向机构能同时朝左右上下四个方向摆动。
  3. 根据权利要求1所述的带三元矢量风口的冰箱风道结构，其特征在于：所述万向节转向机构包括第一支架（1）、第二支架（2）、第一步进电机（3）和第二步进电机（4），所述第一支架（1）为环状支架，第二支架（2）为球面形结构，第一支架（1）的内圈直径与第二支架（2）的外直径相吻合，上端为用于卡住风道盖板（7）并使第一支架（1）能转动的转轴，下端为与第一步进电机（3）所设转轴相配合装配的转轴，第二支架（2）一端设有与第一支架（1）装配的小转轴，第二步进电机（4）与第二支架（2）装配，第二步进电机（4）的转轴就与第二支架（2）的小转轴在同一轴线，所述风口设在第二支架（2）内的中间位置。
  4. 根据权利要求3所述的带三元矢量风口的冰箱风道结构，其特征在于：所述第二支架（2）为半球形结构。
  5. 根据权利要求3所述的带三元矢量风口的冰箱风道结构，其特征在于：所述风口处设有避免冷风从风口出来时产生紊流的导流罩（5）。
  6. 根据权利要求3所述的带三元矢量风口的冰箱风道结构，其特征在于：所述步进第二步进电机（4）的转轴通过设有轴孔的连接块（6）与第一支架（1）固定连接。
  7. 根据权利要求6所述的带三元矢量风口的冰箱风道结构，其特征在于：所述连接块（6）上设有螺孔，通过穿过螺孔的螺钉将第二步进电机（4）和连接块（6）固定在第一支架（1）上。
  8. 根据权利要求3所述的带三元矢量风口的冰箱风道结构，其特征在于：所述第一步进电机（3）通过螺钉与风道盖板（7）装配固定。
  9. 根据权利要求3所述的带三元矢量风口的冰箱风道结构，其特征在于：所述风道盖板（7）内部设有加强筋（8），加强筋（8）上有卡槽，第一支架（1）的上端转轴外径卡入的加强筋（8）的卡槽。
  10. 根据权利要求3所述的带三元矢量风口的冰箱风道结构，其特征在于：所述第一步进电机（3）的转轴为半圆转轴，第一支架（1）的下端转轴内部有与第一步进电机（3）的半圆转轴相配合装配的半圆孔。
PCT/CN2011/079981 2011-09-22 2011-09-22 一种带三元矢量风口的冰箱风道结构 WO2013040774A1 (zh)

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