JP2016203669A - Duct type register - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a duct type register which can be easily installed along, for example, a ceiling part or a side wall part in a cabin and can blow air in a wide range in the cabin.SOLUTION: A duct type register in which a spiral flow channel is formed in a duct member 5 and which blows air through an opening 13 provided on a periphery of the duct member 5. A screw member 7 is provided in a duct housing 10 of the duct member 5, whereby a first spiral flow channel 17 and a second spiral flow channel 18 are formed. A tip of the duct housing 10 is closed. The opening 13 opens towards in a tangential direction of the periphery of duct housing 10 and a spiral rotation direction, and is provided in a slit form along a longer direction of the duct member 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a register used for air conditioning in a passenger compartment of an automobile, and in particular, can be satisfactorily installed on a ceiling portion, a side wall portion, a floor portion or the like in a passenger compartment, and uniformly air-conditions over a relatively wide range. It relates to a duct type register that can be performed.

  As a register for adjusting the air outlet used for the air outlet for ventilation and air conditioning in the passenger compartment, the barrel is pivotally supported in a rectangular frame retainer, and a plurality of fins are installed in the barrel. A register that is pivotally supported by a rotation axis that is perpendicular to the rotation axis and that has an operation knob on one of the fins is known from Patent Document 1 below.

  This register is usually attached to a side portion of a ventilation duct disposed on a ceiling or side wall of a vehicle interior such as a one-box car, and is configured to blow an air flow supplied through the ventilation duct into the vehicle interior. The When changing the wind direction of this register up and down, the user moves the barrel up and down with the operation knob to change the direction up and down, and when changing the wind direction to the left and right, hold the operation knob and change the direction of the fin. Change the wind direction to the left or right.

JP 2000-255256 A

  However, this type of barrel-type resistor is usually formed in a relatively small length of about 15 cm to 20 cm, and one or two are attached to each ventilation duct disposed on the ceiling or side wall. Therefore, the airflow range of the airflow blown from the register is relatively narrow, and the occupant of the rear seat is less likely to receive air-conditioned airflow depending on the seat position. On the contrary, the passenger in the seat near the register tends to be blown too much and air conditioning in the passenger compartment tends to be uneven.

  For this reason, it has been studied to attach a large number of resistors along the longitudinal direction of each ventilation duct to the ceiling portion or side wall portion of a relatively large vehicle interior such as a one-box car.

  However, since the register attached to the ceiling or side wall of the vehicle interior is usually attached to the tip of the ventilation duct and is attached so as to blow wind perpendicular to the axial direction of the duct, the length of the air outlet of the register is long. When the length is extended in the longitudinal direction, the air volume increases toward the tip, and it is difficult to uniformly blow air. For this reason, only one small resistor is attached to the end of one ventilation duct, and in order to provide a large number of registers in the ventilation duct, many ventilation ducts are provided on the ceiling and side walls. Alternatively, it is necessary to dispose the ventilation duct and the register in the vehicle interior in terms of space.

  The present invention has been made in view of the above points, and is a duct type register that can be easily disposed in a space-saving manner along a ceiling portion or a side wall portion in a vehicle interior and can blow air over a wide range in the vehicle interior. The purpose is to provide.

In order to achieve the above object, a duct type register of the present invention is a duct type register in which a spiral flow path is formed in a duct member and air is blown through an opening provided in an outer peripheral portion of the duct member.
A screw member is disposed in the duct housing of the duct member to form the spiral flow path, the distal end portion of the duct housing is closed, and the opening is tangential to the outer peripheral portion of the duct housing and It is characterized by being opened in the direction of spiral rotation and provided in a slit shape along the longitudinal direction of the duct member.

  According to the register of the present invention, the air flow blown through the duct housing of the duct member advances toward the tip while turning (rotating) in the spiral flow path, and opens in the rotation (spiral turning) direction. Since air is efficiently blown from the slit-shaped opening toward the tangential direction, the air flow is not concentrated near the end of the duct, and the air is blown over a wide range through the slit-shaped opening. Can do. That is, when the air flow is swirled through the spiral flow channel in the duct member and blows from the slit-like opening that opens in the tangential direction, the opening is formed continuously long in the axial direction of the duct housing. However, it is possible to blow a uniform air flow over a wide range, and thereby, for example, air for cooling and heating can be uniformly fed to the entire vehicle interior including the rear seat, thereby improving the cooling and heating effect.

  Here, the duct member and the screw member can be formed of a soft synthetic resin so as to be deformable along a curved attached portion. According to this, for example, when a register is installed in a curved portion of a ceiling or floor portion in a vehicle compartment, the register can be easily installed together with the duct in accordance with the curved shape of the attached portion.

  Here, it is preferable that the screw member is formed by providing a double spiral wall in the duct housing, and a double spiral channel is formed in the duct member by the double spiral wall. In addition, a spiral shaft is arranged at the center of the axis of the cylindrical duct housing, a double spiral wall is provided between the spiral shaft and the inner wall of the duct housing, and the double spiral wall doubles the duct member. A spiral channel can also be formed.

  According to this, the pressure loss at the time of ventilation can be reduced by the double spiral flow path in the duct member, and the cooling / heating air can be circulated efficiently.

  Here, in the register, the base part side of the duct member is connected in communication with the air outlet side of the air conditioning case, and the slit-like opening part is spaced from the outer periphery of the duct housing along the longitudinal direction. And a plurality of them can be provided. According to this, air-conditioning air can be sent preferentially to the required part of the passenger | crew of a vehicle interior.

  According to the duct type register of the present invention, the duct type register can be easily installed along the ceiling portion or the side wall portion of the vehicle interior, and the air can be blown over a wide range of the vehicle interior.

It is a front view of a duct member of a duct type register showing a 1st embodiment of the present invention. It is a right view of the same duct member. It is a perspective view of the duct member. It is a disassembled perspective view of a duct member. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is a front view of a screw member. It is a perspective view of a housing case and a screw member. It is a top view of a case and a screw member. It is a front view of a housing case and a screw member. It is explanatory drawing which shows the air flow in the 1st spiral flow path of a screw member, and a 2nd spiral flow path. It is a schematic explanatory drawing of the arrangement position of the duct type register in the vehicle interior showing the usage mode. (A) is AA partial cross-section explanatory drawing of FIG. 12 at the time of cooling, (b) is AA partial cross-section explanatory drawing at the time of heating. It is a disassembled perspective view of the duct member of 2nd Embodiment. It is a disassembled perspective view of the duct member seen from the lower side. It is a front view of the screw member in the duct member. It is explanatory drawing which shows the air flow in the 1st spiral flow path of the screw member, and a 2nd spiral flow path.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 13 show a duct type register of the first embodiment. In this duct type register, a first spiral channel 17 and a second spiral channel 18 of a double spiral channel are formed as a spiral channel in a duct member 5 having a cylindrical duct shape, and from the end side of the duct member 5. It is the structure which blows the sent air through the opening part 13 provided in the outer peripheral part.

  As shown in FIG. 4, the screw member 7 is disposed in the duct housing 10 of the duct member 5 to form a spiral flow path therethrough, and the tip of the duct housing 10 is closed. The opening 13 serving as an air outlet opens in the tangential direction of the outer periphery of the duct housing 10 and toward the spiral rotation direction (rotation in the screw feed direction), and along the longitudinal direction of the duct member 5. It is provided in a slit shape. As shown in FIG. 7, the screw member 7 has a spiral shaft 19 disposed at the center thereof, and a first spiral wall 11 and a second spiral wall 12 are formed around the spiral shaft 19 so as to form a double spiral. In the duct housing 10, the first spiral channel 17 and the second spiral channel 18 are formed as a double spiral channel as shown in FIG.

  As shown by a solid line and a broken line in FIG. 11, the double spiral flow path in the duct member 5 is formed by the screw member 7 and the duct housing 10 so that the first spiral flow path 17 and the second spiral flow path 18 are spiral axes 19. Are formed so as to appear alternately in the axial direction. As described above, the double spiral flow path including the first spiral flow path 17 and the second spiral flow path 18 is formed in the duct housing 10, so that the cross-sectional area of the flow path is larger than that of the single flow path. Can be increased by a factor of 2, and the pressure loss during blowing can be reduced.

  In this embodiment, the screw member 7 is provided with a spiral shaft 19 at the center thereof, but the spiral shaft 19 is eliminated and only the first spiral wall and the second spiral wall are formed by a double helix. The first spiral channel and the second spiral channel may be formed as a double spiral channel without a spiral axis in the housing 10.

  Further, as shown in FIG. 7, the screw pitch P between the first spiral wall 11 and the second spiral wall 12 of the screw member 7, that is, the pitch P between the first spiral channel 17 and the second spiral channel 18 is relatively Although illustrated as a small pitch P that is approximately 1/3 of the outer diameter R of the screw member 7, the pressure loss during blowing increases as the pitch P of the spiral flow path decreases.

  For this reason, when the pressure loss at the time of ventilation is taken into consideration, the larger the pitch P of the spiral flow path is, the smaller the pressure loss becomes and is suitable for the air conditioner. The blowout performance is likely to be affected. For this reason, for example, the pitch P of the spiral flow path of the screw member 7 is about 1 to 2 times the outer diameter R of the screw member 7, and preferably about 1.2 to about 1.7 times the outer diameter R. It is desirable to do. Thereby, the pressure loss at the time of ventilation can be made small enough, making the blowing performance of an air flow favorable.

  The duct housing 10 of the duct member 5 is formed in a cylindrical duct shape as shown in FIG. 3, the tip is closed, and the base side is, for example, the air blowing side of the air conditioning case 21 as shown in FIG. 12. It is connected in communication. As shown in FIG. 4, a slit-shaped opening 13 is formed in the duct housing 10 so as to open in the tangential direction of the outer peripheral portion of the transverse section of the duct housing 10 and in the spiral turning direction. As shown in FIG. 3, a plurality of openings 13 of the duct housing 10 are formed at intervals along the longitudinal direction of the duct, and the duct portion having the openings 13 includes a cylindrical duct and a cylindrical duct. Are arranged at predetermined intervals so as to be sandwiched between them.

  As shown in FIG. 4, the duct housing 10 having the opening 13 includes a housing case 15 and a housing cover 16, and the housing case 15 with the screw member 7 disposed therein at the time of manufacture. The housing cover 16 is assembled and the opening of the housing case 15 is covered with the housing cover 16. As shown in FIG. 4, the housing case 15 and the housing cover 16 are formed in a semi-cylindrical shape that opens to the inside, and the upper edge portion and the lower edge portion of the housing case 15 that are opened are respectively A pair of locking portions 15a is provided. Similarly, a pair of locking portions 16a is also provided on the upper and lower edges of the housing cover 16, respectively. As a result, when the casing case 15 and the casing cover 16 are assembled so as to match each other, the respective locking portions 15a and the locking portions 16a are locked, and the duct housing 10 is assembled.

  The duct housing 10 having the opening 13 is configured by assembling the housing case 15 and the housing cover 16 as described above, but the housing case 15 and the housing having only the duct portion having the opening 13 are assembled. The body cover 16 can be manufactured by separately molding, and the duct housing 10 can be manufactured so as to connect a separately molded cylindrical duct before and after the duct. On the other hand, as shown in FIG. 4, the casing case 15 and the casing cover 16 of the duct casing 10 are integrally formed including the cylindrical duct portion, and the duct casing 10 including the cylindrical duct portion is formed. The duct casing 10 can be manufactured by assembling the casing case 15 and the casing cover 16 so as to be matched with the screw member 7 inserted therein.

  As shown in FIG. 5, the opening 13 of the duct housing 10 opens toward the tangential direction of the outer peripheral portion of the transverse section of the duct housing 10 and toward the spiral turning (rotation in the screw feed direction) direction. Formed. Such an opening 13 swirls around the spiral axis 19 through the air flow in the first spiral channel 17 and the second spiral channel 18 formed by the screw member 7 in the duct housing 10. Since the air flow flows along the vicinity of the outer periphery of the flow path due to the centrifugal force of the air flow, a part of the air flow flowing toward the screw direction of the screw member 7 is opened efficiently and with a relatively small pressure loss. It can be blown out from the portion 13.

  In addition, as shown in FIG. 12, although the opening part 13 provided in the duct housing | casing 10 is formed with the width | variety and space | interval which are arrange | positioned about 10 pieces in a vehicle interior, it is wide with a width | variety and space | interval larger than the thing of a figure example. It can also be formed as two to three openings in each duct member 5. Moreover, although the opening part 13 was formed so that it might open toward the tangential direction of the cross-sectional outer peripheral part of the duct housing | casing 10, it can also be made only into the opening part opened in the radial direction (radial direction) of a duct.

  The screw member 7 provided in the duct housing 10 can be disposed in the entire duct housing, but the screw member 7 is disposed only in the duct housing 10 in which the opening 13 is provided, The cylindrical duct portion can be a space, and the screw member 7 can be eliminated.

  As shown in FIG. 12, the duct type register having the above-described configuration is used in a vehicle air conditioner for an automobile. In the air conditioning case 21 of the air conditioner, there are disposed a blower 23 that blows air into the passenger compartment, and a heat transfer device 22 that includes a cooling evaporator and a heater core that transfers heat to and from the air flow. Is done. The duct member 5 is connected to the outlet side of the air conditioning case 21, and the suction side (not shown) provided in the air conditioning case 21 is connected to a suction port that opens into the vehicle interior. In the air conditioning case 21, an air conditioner mode switch 24 including an inside / outside air switching damper, an inside / outside air introduction damper, and the like for switching the inside / outside air to the duct member 5 is provided.

  As shown in FIG. 12, the air-conditioning duct members 5 are respectively disposed on the ceiling and floor of the vehicle interior. The duct members 5 on the ceiling serve as duct type registers for cooling, and the left and right side corners of the ceiling. The floor duct member 5 is disposed as a duct-type register for heating in the left and right corners of the floor portion in the front-rear direction. The duct member 5 of the ceiling part can also be arranged in the left and right corners on the front and rear side corners of the ceiling part, and the duct member 5 on the floor part can be arranged on the front and rear side corners of the floor part in the left and right direction. It can also be arranged.

  Next, the operation of the duct type register having the above configuration will be described. As shown in FIG. 12, the air-conditioning duct members 5 are arranged on the ceiling and floor of the vehicle interior, and the cooling duct members 5 are arranged in the left and right corners of the ceiling in the front-rear direction. The heating duct member 5 is disposed in the same direction at the left and right corners of the floor portion. The opening 13 of the duct housing 10 of the duct member 5 is disposed facing the inside of the vehicle interior.

  When the air conditioner circulates and blows cooling air in the passenger compartment to cool the passenger compartment, the switch 24 of the air conditioning case 21 sends the cooling air to the duct member 5 on the ceiling through the heat transfer device 22, and the passenger compartment. The air is switched so as to be sucked into the air conditioning case 21.

  In the duct member 5 at the ceiling, a first spiral channel 17 and a second spiral channel 18 of a double spiral channel are formed by the first spiral wall 11 and the second spiral wall 12 of the screw member 7. Therefore, as shown in FIG. 11, the air in the duct member 5 passes through the first and second spiral flow paths 17 and 18 while turning and flows toward the tip of the duct. At this time, since the end of the duct is closed, the air pressure in the first and second spiral flow paths 17 and 18 rises, and the air flow swirls in the first and second spiral flow paths 17 and 18. Therefore, a part of the air flow is blown into the vehicle compartment from each opening 13 of the duct member 5.

  Centrifugal force acts on the air flow swirling in the first and second spiral flow paths 17 and 18 during the air blowing, whereby the air flow flows along the outer peripheral wall of the duct member 5 and is tangential. In addition, as shown in FIG. 13A, an air flow is smoothly blown from the ceiling portion into the vehicle interior through the opening 13 that opens in the turning direction. At this time, as shown in FIG. 12, a large number of slit-shaped openings 13 are formed along the longitudinal direction in the duct member 5 disposed in the ceiling of the vehicle interior, and the spiral flow by the screw member 7 is formed in the duct. Since the path is formed, the cooling air is uniformly blown from the opening 13 of the duct member 5 over a wide range in the passenger compartment. As a result, good cooling air uniformly flows over a wide range in the passenger compartment and circulates well in the passenger compartment, so that both the front seat and the rear seat can be comfortably cooled.

  When the air conditioner heats the interior of the vehicle, the switch 24 of the air conditioning case 21 switches the air for heating to the duct member 5 on the floor through the heat transfer device 22. Thereby, in the duct member 5 of the floor portion, an air flow flows through the first spiral channel 17 and the second spiral channel 18 of the double spiral channel, and the air in the duct member 5 is shown in FIG. As described above, the gas passes through the first and second spiral flow paths 17 and 18 while turning and flows toward the tip of the duct.

  At this time, since the end of the duct is closed, the air pressure in the first and second spiral flow paths 17 and 18 rises, and the air flow swirls in the first and second spiral flow paths 17 and 18. Therefore, a part of the air flow for heating is blown into the vehicle interior from each opening 13 of the duct member 5 on the floor as shown in FIG. Since a spiral flow path is formed by the screw member 7 in the duct member 5, the air flow for heating advances in the first and second spiral flow paths 17 and 18 while swirling, and many openings in the floor portion are formed. The air is blown from the section 13 into the vehicle interior. Thereby, good heating air uniformly flows in a wide range in the vehicle interior and circulates well in the vehicle interior, so that both the front seat and the rear seat can be comfortably heated.

  In this way, in the case of cooling, the air is uniformly blown into the vehicle interior over a wide range from the opening 13 of the duct member 5 arranged on the ceiling, and in the case of heating, the air is passed through the opening 13 of the duct member 5 arranged on the floor. Since the air is uniformly blown into the vehicle interior over a wide range, a circulation flow of air conditioned in a wide range within the vehicle interior can be created, and the entire vehicle interior can be air-conditioned to a uniform temperature.

  FIGS. 14-17 has shown the duct member 35 of 2nd Embodiment of a duct type | mold register | resistor. In the duct housing 30 of the duct member 35, the housing case, the housing cover, and the opening 33 of the above-described embodiment are integrally formed by extrusion molding of synthetic resin. A screw member 37 is inserted into the integrally formed duct housing 30, and the peripheral portion of the screw member 37 is fixed to the inner peripheral surface of the duct housing 30. The duct housing 30 is formed in a circular cross-sectional shape in the same manner as in the above embodiment, and is formed in a cylindrical shape. Furthermore, an opening 33 is formed in the direction tangential to the outer periphery of the duct housing 30 toward the turning direction of the screw member 37.

  Since the duct housing 30 has a constant cross-sectional shape including the opening 33 along the longitudinal direction, the duct housing 30 can be extruded by using a synthetic resin material during manufacture. As the synthetic resin material, it can be molded with a normal hard synthetic resin, but a soft synthetic resin such as synthetic rubber or thermoplastic elastomer can be used to form the duct housing 30 so that it can be bent.

  When the duct housing 30 is extrusion molded, the opening and its tip end are in an open state. Therefore, after the screw member 37 is inserted into the duct housing 30 after molding, a lid with a predetermined shape is attached to the duct housing 30. Glue to the opening at the tip of and close. When assembling the screw member 37 and the duct housing 30 at the time of manufacture, the screw member 37 is inserted into the duct housing 30, and the peripheral portion of the screw member 37 is bonded to the inner peripheral surface of the duct housing 30. When the duct housing 30 is molded from a soft synthetic resin, the duct member 35 can be bent if the screw member 37 is also molded from the same soft synthetic resin. The duct member 35 can be easily installed.

  The opening 33 is formed continuously on the outer periphery of the duct housing 30. As in the above embodiment, the length of the opening 33 is a predetermined length of the duct type resistor (for example, about 50 cm to about 100 cm). The screw member 37 can be inserted only into the interior of the duct housing 30, and a normal ventilation duct can be connected to the end of the duct housing 30.

  As with the above embodiment, the screw member 37 has a spiral shaft 39 disposed at the center thereof, and the first spiral wall 31 and the second spiral wall 32 are formed in a double spiral around the spiral shaft 39. In the duct housing 30, the first spiral flow path 47 and the second spiral flow path 48 are formed as a double spiral flow path as shown in FIG. As shown by a solid line and a broken line in FIG. 17, the double spiral flow path in the duct member 35 is divided into a first spiral flow path 47 and a second spiral flow path 48 by the screw member 37 and the duct housing 30 on the outer periphery thereof. Are alternately formed in the axial direction of the helical shaft 39.

  In the duct type resistor having the above-described configuration, the air supplied from the end side of the duct member 35 passes through the first and second spiral flow paths 47 and 48 while turning as shown in FIG. , Flowing toward the tip of the duct. In the duct member 35, a first spiral channel 47 and a second spiral channel 48 of a double spiral channel are formed by the first spiral wall 31 and the second spiral wall 32 of the screw member 37, and the tip of the duct Is closed, the air pressure in the first and second spiral flow paths 47 and 48 increases, and the air flow flows while swirling in the first and second spiral flow paths 47 and 48, The part is blown into the vehicle interior from the opening 33 of the duct member 35.

  Centrifugal force acts on the air flow swirling in the first and second spiral flow paths 47 and 48 during the air blowing, whereby the air flow flows along the outer peripheral wall of the duct member 35 and is tangentially directed. In addition, the airflow is smoothly blown into the vehicle interior from the opening 33 that opens in the turning direction. At this time, the slit-shaped opening 33 is formed in the duct member 35 disposed in the vehicle interior long along the longitudinal direction, and a spiral flow path formed by the screw member 37 is formed in the duct. Air for heating and cooling can be uniformly blown from the opening 33 of the duct member 35 over a wide range.

DESCRIPTION OF SYMBOLS 5 Duct member 7 Screw member 10 Duct housing | casing 11 1st spiral wall 12 2nd spiral wall 13 Opening part 15 Housing | casing case 15a Locking part 16 Housing | casing cover 16a Locking part 17 1st spiral flow path 18 2nd spiral flow Road 19 Spiral shaft 21 Air conditioning case 22 Heat transfer device 23 Blower 24 Switch 30 Duct housing 31 First spiral wall 32 Second spiral wall 33 Opening 35 Duct member 37 Screw member 39 Spiral shaft 47 First spiral flow path 48 First 2 spiral channel

Claims (5)

A duct-type resistor in which a spiral flow path is formed in the duct member and air is blown through an opening provided in an outer peripheral portion of the duct member,
The duct member has a cylindrical duct housing, a screw member is arranged in the duct housing to form the spiral flow path, a distal end portion of the duct housing is closed, and the opening is A duct-type register, characterized in that it opens in a direction tangential to the outer periphery of the duct housing and in the direction of spiral rotation, and is provided in a slit shape along the longitudinal direction of the duct member.   2. The duct type register according to claim 1, wherein the duct member and the screw member are formed of a soft synthetic resin and are deformable along a curved attached portion.   The screw member is formed by providing a double spiral wall in the duct housing, and a double spiral flow path is formed in the duct member by the double spiral wall. The duct type register described.   The screw member is formed by arranging a spiral axis at the axial center in the duct housing and providing a double spiral wall between the spiral shaft and the inner wall surface of the duct housing. The duct type resistor according to claim 3, wherein a double spiral channel is formed in the member.   The base side of the duct member is connected in communication with the outlet side of the air conditioning case, and a plurality of the slit-like openings are formed on the outer periphery of the duct housing at intervals along the longitudinal direction. The duct type register according to claim 1.

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