Blower

Abstract

To provide a blower that can be used safely for a long period of time without damage to the insulation of the lead wires. [Solution] The device comprises a housing 1, an intake port 5 and an outlet port 6 provided in the housing 1, a blower fan 41 that blows air drawn in from the intake port 5 out of the outlet port 6, a first louver 9 provided in the outlet port 6 and having a hollow shaft portion 14 that changes the airflow direction at the outlet port 6, an electrical load 18 provided on the first louver 9, a first louver motor 60 provided in the housing 1 that rotates the shaft portion 14 of the first louver 9, a control unit 61 that controls the first louver motor 60 and the electrical load 18, a bearing portion 62 provided in the outlet port 6 that receives the shaft portion 14, a slit-shaped opening 63 provided in the shaft portion 14, and a conductor 64 that passes through the hollow of the shaft portion 14 and electrically connects the control unit 61 and the electrical load 18, and a means to prevent the conductor 64 from popping out of the opening 63 is provided inside the shaft portion 14.

Description

Technical Field

[0001] The present invention relates to a blower device for blowing air into a room.

Background Art

[0002] Conventionally, in this type of device, a plurality of left and right wind direction plates connected by a connecting plate are provided at the center of a main louver frame body that is vertically movable at the air outlet, and a left and right wind direction motor for rotating the left and right wind direction plates and an infrared sensor for detecting the temperature of laundry or the like are provided. By rotating the left and right wind direction motor, the wind direction can be automatically changed in the left and right directions. (For example, refer to Patent Document 1)

[0003] In this conventional technology, the lead wire for the left and right wind direction motor is connected to the control board through the hollow upper and lower rotating shaft of the main louver frame body. At this time, when the connector connected to the control board is larger than the inner diameter of the hollow upper and lower rotating shaft, a slit-shaped opening is provided from one end to the other end of the hollow shaft for the upper and lower rotating shaft through which the lead wire is to pass, and the lead wire for the left and right wind direction motor is passed through this opening, and the connector is connected to the control board of the blower device body.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, during the rotation of the main louver frame body, the lead wire moves closer to the slit-shaped opening side from the inside of the hollow, and further comes out of the opening and rubs against the inner wall of the bearing portion provided on the housing side that pivotally supports the upper and lower rotating shaft, resulting in problems such as damage to the coating of the lead wire or disconnection.

[0006] This invention was made in view of the above background, and aims to provide a blower that can be used safely for a long period of time by preventing lead wires from protruding from the opening when the upper and lower rotating shafts rotate. [Means for solving the problem]

[0007] The present invention has been made to achieve the above objective, and claim 1 is characterized in that it comprises a housing, an intake port and an outlet port provided in the housing, a blower fan that blows air drawn in from the intake port out of the outlet, a first louver provided in the outlet and having a hollow shaft portion that changes the direction of the airflow up and down or left and right at the outlet, an electrical load provided in the first louver, a first louver motor provided in the outlet and rotating the shaft portion of the first louver, a control unit that controls the first louver motor and the electrical load, a bearing portion provided in the outlet and receiving the shaft portion, a slit-shaped opening provided in the shaft portion, and a conductor that penetrates the hollow of the shaft portion and electrically connects the control unit and the electrical load, wherein a means for preventing the conductor from popping out of the opening is provided inside the shaft portion.

[0008] Claim 2 is characterized in that the anti-pop-out means is a protrusion that protrudes in the axial direction and is provided at the end of the opening.

[0009] Claim 3 further comprises a second louver provided on the first louver, the direction of airflow passing through the outlet being different from that of the first louver in terms of rotational axial direction, and the electrical load being a second louver motor that drives the second louver. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a blower that can be used safely for a long period of time without damage to the insulation of the lead wires. [Brief explanation of the drawing]

[0011] [Figure 1] Cross-sectional view of the side of the dehumidifier in the first embodiment [Figure 2] Cross-sectional view of the same front [Figure 3] Exploded perspective view of the louver frame in the first embodiment [Figure 4] Perspective view of the louver frame and casing in the first embodiment [Figure 5] Cross-sectional view AA in the first embodiment [Figure 6] Perspective view of the lower louver in the first embodiment [Figure 7] Enlarged view of the main part in the first embodiment [Figure 8] Perspective view of the lower louver in the second embodiment [Figure 9] Perspective view of the lower louver in the third embodiment [Modes for carrying out the invention]

[0012] A first embodiment of the present invention will be described with reference to Figures 1 to 7.

[0013] 1 is the housing of the dehumidifier, and the front case 3 and rear case 4 are placed on the bottom plate 2 to form the outer casing of the main unit. 5 is an intake port formed on the back of the housing 1, and the rear case 4 has an opening with many horizontal slits.

[0014] 6 is an air outlet located from the top surface to the upper rear of the housing 1, which allows the direction of dry air to be freely changed from upward to backward. Inside the intake port 5 is a filter 7 made of a resin mesh or nonwoven fabric that removes dust from the intake air. Inside this filter 7 is an evaporator 8 consisting of a fin-tube type heat exchanger, which cools the intake air to condense moisture in the air and dehumidify it.

[0015] The air outlet 6 is provided with a louver frame body 9 (first louver) that can freely change the direction of the blown air between the upward direction and the backward direction. This louver frame body 9 includes a lower louver 10 having a U-shaped cross section, and an upper louver 13 that is substantially parallel to the lower surface 11 of the lower louver 10, engages with the upper end portion 12 while maintaining a distance of about 40 mm from the lower surface 11, and covers the upper part.

[0016] A pair of upper and lower rotation shafts 14 (shaft portions) are provided on the left and right side surfaces of the louver frame body 9, a bearing portion 62 provided on the side surface of the air outlet 6 for supporting the upper and lower rotation shafts 14, and an upper and lower louver motor 60 (first louver motor) provided in the air outlet 6 for rotating the upper and lower rotation shafts 14 of the louver frame body 9. When the dehumidifier is stopped, the blowing direction is set to the backward side, making the upper surface of the housing 1 substantially flat. During a washing and drying operation or the like, the louver frame body 9 automatically rotates to blow dry air upward. By the reciprocating rotation of the upper and lower louver motor 60, the louver frame body 9 can be swung up and down to change the air blowing from the air outlet 6 up and down.

[0017] Cylindrical protrusions 15 are provided opposite to each other on the lower louver 10 and the upper louver 13, and a rotating shaft 16 is inserted into the protrusions 15 to freely rotate a flat left and right air direction plate 17 (second louver). The left and right air direction plates 17 include a first left and right air direction plate 23, a second left and right air direction plate 27, a third left and right air direction plate 32, and a fourth left and right air direction plate 37. 18 is a left and right air direction motor (electrical load, second louver motor). As shown in FIG. 3, the left and right air direction motor 18 is covered with a motor cover 20 for protecting it from water and dust on a motor protrusion 19 erected on the lower louver 10, and then screwed with a screw 21. The left and right air direction plates 17 (second louver) are provided on the louver frame body 9 (first louver), and the air direction of the air passing through the air outlet 6 is different from the axial direction of rotation of the louver frame body 9 (first louver).

[0018] The motor shaft 22 is inserted into the rotation shaft 24 of the first left and right air direction plate 23 at the right end, and the first left and right air direction plate 23 is rotated by the left and right air direction motor 18. 25 is a right connecting plate, which connects a connecting shaft 26 located on the upper part of the first left and right wind deflector 23 to a connecting shaft 29 located on the upper part of the second left and right wind deflector 27, which is positioned approximately parallel to the left side and behind the pivot shaft 28, thereby transmitting the movement of the first left and right wind deflector 23 to the second left and right wind deflector 27. 30 is a central connecting plate that connects a connecting shaft 31 located below the second left and right wind deflector 27 and in front of the pivot axis 28 to a connecting shaft 34 located below the third left and right wind deflector 32 on the left side and behind the pivot axis 33, thereby transmitting the movement of the second left and right wind deflector 27 to the third left and right wind deflector 32.

[0019] 35 is the left connecting plate, which connects a connecting shaft 36 located on the upper part of the second left and right wind deflector 27 and in front of the pivot shaft 28 to a connecting shaft 39 located on the upper part of the fourth left and right wind deflector 37 at the left end and behind the pivot shaft 38, thereby transmitting the movement of the second left and right wind deflector 27 to the fourth left and right wind deflector 37.

[0020] In this way, the force of the left and right air direction motors 18 can be transmitted from the first left and right air direction plate 23 at the right end to the fourth left and right air direction plate 37 at the left end by transmitting the movement using two connecting plates 25 and 35. This allows all left and right air direction plates 17 to be rotated with less motor torque, thereby improving the durability of the drive structure of the left and right air direction plates 17.

[0021] Further downstream from the evaporator 8 is a condenser 40, which, like the evaporator 8, is a fin-tube type heat exchanger, and is used to heat the air cooled in the evaporator 8. Downstream of the condenser 40, a sirocco fan-type blower fan 41 and a fan motor 42 that drives this blower fan 41 are provided to blow air through the airflow path 43 formed between the intake port 5 and the outlet port 6. The blower fan 41 forms a rotation axis 44 that is approximately perpendicular to the front surface of the frame.

[0022] Inside the front case 3, between the fan motor 42 and the blower fan 41, there is a casing 45 that surrounds the blower fan 41 and guides the airflow to the outlet 6. The blower fan 41 is located slightly to the right of the center of the casing 45, the stabilizer 46 is located above the blower fan 41, and the air guide section 47 is located to the left of the stabilizer 46, guiding the airflow from the air guide section 47 toward the outlet 6. As shown by the arrows in Figure 2, the rotation of the blower fan 41 causes air to be blown tangentially around the outer circumference of the blower fan 41. Therefore, the airflow at the right end of the outlet 6, where the left and right airflow motor 18 is located, is relatively weak, and thus has very little impact on the overall airflow. Furthermore, a partition plate 48 with an air outlet in the center is provided between the condenser 40 and the blower fan 41 to efficiently guide air to the blower fan 41, and a drain pan 49 for receiving condensed water is provided below the evaporator 8. 50 is a drainage channel with one end connected to the bottom of the drain pan 49 and the other end located at the top of the drain tank 51, which guides the condensed water collected in the drain pan 49 to the drain tank 51.

[0023] 52 is a heater located in the airflow path 43 inside the air outlet 6. It prevents the dehumidification efficiency from decreasing when the room temperature drops during clothes drying or in winter, and its power consumption is approximately 400-500W. 53 is a U-shaped handle for transporting the dehumidifier. It is stored on the rear side of the top surface of the dehumidifier and rotates to position above the air outlet 6 when in use for transport. 54 is an operating unit located on the front part of the top surface of the dehumidifier, and is equipped with switches such as an operation switch (not shown) and indicator lights such as an operation lamp (not shown). 55 is a compressor fixed to the base plate 2.

[0024] Figure 4 shows the louver frame 9, which has an upper louver 13 and a lower louver 10, facing backward. A bearing section (not shown) is provided on the left side of the casing 45, and the vertical pivot shaft 14a, located on the left side of the louver frame 9, passes through this bearing section. Furthermore, a vertical louver motor 60 for swinging the louver frame 9 up and down is provided on the left side of the vertical pivot shaft 14. The right side of the casing 45 is provided with a bearing section 62 that is the same shape as the left side, and a hollow vertical pivot shaft 14, located on the right side of the louver frame 9, passes through the bearing section 62.

[0025] Figure 5 is a cross-sectional view AA of the vertical pivot shaft 14 (shaft portion) and casing 45 located on the right side of the lower louver 10. Figure 6 is a perspective view of the lower louver 10. Figure 7 is a perspective view of the louver frame 9, casing 45, and conductor 64. The conductor 64 is inserted into the hollow section by passing it through a slit-shaped opening 63 provided above the vertical pivot shaft 14 (shaft portion) of the lower louver 10. The hollow vertical pivot shaft 14 is then assembled so that it passes through the bearing portions 62 provided on the left and right sides of the casing 45. The left and right air direction motors 18 (second louver motors), motor cover 20, left and right air direction plates 17 (second louvers), connecting plates 25, 30, 35, etc. are then assembled, and the upper louver 13 is assembled. Here, the connector portion (not shown) for connecting the conductor 64 to the control unit 61 is smaller than the inner diameter of the bearing portion 62. Furthermore, the gap in the slit-shaped opening 63 is larger than the thickness of the conductor 64.

[0026] In this invention, a means to prevent the conductor 64 from popping out of the opening 63 is provided inside the hollow vertical pivot shaft 14 (shaft portion). The means for preventing the object from popping out is specifically a protrusion 68 that is provided at one end 66 of the opening 63 and protrudes in the axial direction of the vertical pivot shaft 14. As shown in Figure 7, with the louver frame 9 facing rearward, the opening 63 is slit-shaped and located above the vertical pivot shaft 14, and the protrusion 68 is provided at the front end 66 of the opening 63. Furthermore, the size of the protrusion 68 is greater than the thickness of the conductor 64, and the axial length of the protrusion 68 is approximately the same as the length of the vertical pivot shaft 14.

[0027] Next, the operation of the first embodiment will be described.

[0028] When the dehumidifier of this embodiment is started, the upper and lower louver motor 60 rotates, causing the louver frame 9 to rotate and the air outlet 6 to open. Then, the louver frame 9, which has the lower louver 10, rotates from a rearward-facing position to an upward-facing position (not shown) in the direction of the arrow in Figure 7. At this time, the left and right airflow motor 18 and the upper and lower pivot shaft 14 through which the wire 64 passes, both provided on the lower louver 10, also rotate in the same direction. Furthermore, since one end of the conductor 64 is connected to the left and right air direction motors 18 and the other end is connected to the control unit 61 via a connector, twisting of the conductor 64 occurs within the hollow space of the vertical rotation shaft 14. This twisting could potentially cause the conductor 64 to protrude from the opening 63. However, the surface 68a of the protrusion 68, which is located at the front end 66 of the opening 63 and projects in the axial direction of the vertical rotation shaft 14, collides with the conductor 64, preventing the conductor 64 from protruding from the opening 63. This is also true when the louver frame 9 swings up and down.

[0029] As a result, even when the louver frame 9 rotates, the conductor 64 will not protrude from the opening 63 and rub against the inner wall of the bearing portion 62, preventing damage to the insulation of the conductor 64 or causing it to break, thus ensuring safe and long-term use.

[0030] Next, a second embodiment will be described with reference to Figure 8.

[0031] In the first embodiment, a protrusion 68 is provided at the front end 66 of the opening 63 that projects in the axial direction of the vertical pivot shaft 14, whereas in the second embodiment, in addition to the protrusion 68 at the front end 66, a protrusion 69 is also provided at the rear end 67 that projects in the axial direction of the vertical pivot shaft 14.

[0032] As a result, even when the rotation angle of the louver frame 9 is large, the protrusions 68 and 69 are provided on both ends 66 and 67 that sandwich the opening 63. The surfaces 68a and 69a of the protrusions 68 and 69 opposite to the opening 63 prevent the conductor 64 from sticking out. Consequently, the insulation of the conductor 64 will not be damaged or the wire will not break as it does not protrude from the opening 63, allowing for safe and long-term use.

[0033] Next, a third embodiment will be described with reference to Figure 9.

[0034] In the first embodiment, a protrusion 68 is provided at one end 66 of the opening 63 that projects in the axial direction of the vertical pivot shaft 14. In contrast, in the third embodiment, the protrusion 68 at the end 66 is made larger than in the first embodiment, thereby reducing the hollow cross-sectional area of ​​the vertical pivot shaft 14 of the conductor 64.

[0035] As a result, even if the rotation angle of the louver frame 9 increases and the conductor 64 becomes significantly twisted, the conductor 64 will not approach the opening 63. Therefore, the conductor 64 will not protrude from the opening 63, preventing damage to its insulation or breakage, ensuring safe and reliable long-term use.

[0036] Although the left / right airflow motor 18 (electrical load, second louver motor) was described as a motor that drives the second louver, it could be an ion generator, a temperature detection sensor, or an LED light, as long as it is an electrical load mounted on the louver frame 9.

[0037] Although the louver frame 9 (first louver) was described using a louver that blows air vertically as an example, it may also be a louver that blows air horizontally.

[0038] The other configurations used in this embodiment are presented as examples only and are not intended to limit the scope of the invention. It can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents.

[0039] For example, although the blowing device according to the present invention was described using a dehumidifier, it may also be an air conditioner, a humidifier, or an ion generator. [Explanation of Symbols]

[0040] 1: Cabinet 5: Inlet 6:Air outlet 9: Louver frame (first louver) 14: Up and down pivot axis (shaft part) 17: Left and right wind direction plates (second louver) 18: Left and right airflow motor (electric load, second louver motor) 41: Blower fan 60: Up / Down Louver Motor (First Louver Motor) 61: Control Unit 62: Bearing part 63: Opening 64: Conductor 66, 67: Ends 68, 69: Convex part

Claims

1. The casing and The housing is provided with an intake port and an outlet port, A fan that blows air drawn in from the intake port out from the outlet, A first louver is provided at the aforementioned air outlet and has a hollow shaft portion that changes the direction of the airflow at the air outlet up and down or left and right. The electrical load provided on the first louver, A first louver motor is provided at the air outlet and rotates the shaft portion of the first louver, The first louver motor and the control unit that controls the electrical load, A bearing portion provided at the outlet to receive the shaft portion, A slit-shaped opening provided in the shaft portion, A conductor passes through the hollow of the shaft portion and electrically connects the control unit and the electrical load, Equipped with, Inside the shaft portion, a means for preventing the conductor from protruding out of the opening is provided. A blower characterized by the following features.

2. The aforementioned anti-pop-out means is a projection that protrudes in the axial direction, provided at the end of the opening. The blower according to feature 1.

3. A second louver is provided on the first louver and rotates in a direction different from that of the first louver, which directs the airflow direction of the air passing through the outlet. Furthermore, The aforementioned electrical load is a second louver motor that drives the second louver. The blower according to claim 1 or 2.

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