JP3216132U - Sewing machine heat dissipation drive - Google Patents

Abstract

Disclosed is a heat dissipation drive device for a sewing machine that improves heat dissipation efficiency. When a first cooling fan rotates, a heat guide device 100 for a sewing machine has a flow guide member for cooling the sewing head A1 by an external airflow flowing independently from a first air inlet 231. The airflow is concentrated at, and the airflow is sent to the sewing head A1. When the second cooling fan rotates, an external air flow flows from the second air inlet 41 independently of the first air inlet 231 and is sent to the stator sheet of the motor to cool the stator sheet. It is done. The motor and the sewing head A1 are separately cooled by two different independent cooling airflows, and a better cooling effect can be obtained. [Selection] Figure 1

Description

  The present invention relates to a heat dissipation technique for a motor, and more particularly, to a heat dissipation drive device that is used in a sewing head and that sends air separately from the sewing head and the motor.

  The direct drive motor sewing machine is a model that can reduce the conventional transmission energy consumption and increase the working efficiency because it provides driving force by providing the direct drive motor in the sewing head. This sewing machine mainly has a motor that is directly joined to the transmission shaft of the sewing machine installed outside the sewing head, which not only makes the manufacturing operation more convenient, but also stabilizes the overall operating state of the sewing machine relatively well. The relative sewing product quality is greatly improved.

  Sewing machine heads and motors are automated machines with high operating efficiency and cause problems of heat consumption and heat dissipation during operation. Therefore, in the prior art, the improvement of the heat dissipation structure of the motor is mainly arranged on the side surface of the sewing machine base. The motor includes a motor seat and a motor cover. The motor seat is used to accommodate the rotor and the stator. The motor cover is disposed on the side of the motor seat and has a plurality of air inlets that pass through corresponding positions of the rotor and the stator inside the motor seat. In the motor device, a cooling fan installed between the motor seat and the sewing machine base can be used to suck the air from the outside of the motor through the air inlet of the motor cover so that the cooling air can flow inside. . Air passes through the air inlet of the motor cover and is directly sucked by the suction of the cooling fan and sent to the rotor and stator positions to remove heat generated by the operation. At the same time, the air flow is guided towards the head of the sewing machine and the head of the sewing machine is cooled.

Although conventional techniques can provide a cooling effect, the head and motor of the sewing machine belong to active and passive structures that are operated with high efficiency, respectively. If the cooling airflow passes through the inside of the motor body and picks up a large amount of heat and enters the sewing machine head, the cooling effect provided by the sewing machine head is not exhibited.
Therefore, in order to achieve this object, the present inventor further improves the heat dissipation method of the motor, and further improves the heat dissipation efficiency of the sewing head and the motor.

The main purpose of the present invention is to improve the design of the conventional shared passage for air ingress, and the cooling airflow whose temperature rises through the motor directly enters the head of the sewing machine and affects the cooling efficiency of the head of the sewing machine. To improve the problem.
In order to achieve the above object, the present invention provides a radiating drive device for a sewing machine, which is provided on a sewing machine head having a main shaft and includes a rotor shaft seat, a stator sheet, and a flow guide member.
The rotor shaft seat is directly provided on the main shaft, and the first cooling fan is provided on the head of the sewing machine. The stator seat has a device opening corresponding to the rotor shaft seat and has a plurality of first air inlets. The flow guide member has a flow guide port and is installed on the end surface of the stator sheet on the head side.

  In the cooling part of the head of the sewing machine, the stator sheet is attached to the head with the device port corresponding to the position of the rotor shaft seat. When the first cooling fan rotates, the external airflow is independently sucked from the first air inlet, the airflow is concentrated by the flow guide member, and the airflow is sent to the head by the flow guide port to cool the head. An end face groove is formed in the head of the sewing machine, and a through hole communicating with the outside is provided below the end face groove. After the head is cooled, airflow is discharged from the through hole.

  The stator sheet has a storage tank, and a hood portion is connected to the open end of the storage groove. A flow guide wall is extended at the connection portion of the accommodation groove, and the airflow flowing in from the first air inlet enters the flow guide member along the flow guide wall. The device port is located on the other end face of the storage tank, and the first air inlet is located on the hood portion.

  The flow guide member is a flake.

In the cooling part of the motor, the assembled rotor shaft seat protrudes from the device opening of the stator seat and is used to attach the handwheel. The hand wheel has a plurality of second air inlets penetrating therethrough, and a second cooling fan is disposed on the side of the head.
When the second cooling fan rotates, the external airflow flows from the second air inlet separately from the first air inlet and is sent to the stator sheet to cool the stator sheet. An exhaust gap for directly discharging the cooled airflow is formed between the stator sheet and the handwheel.

  The second cooling fan may be integrally formed on the head side of the handwheel.

  Depending on the specifications of the different sewing machines, the heat radiation driving device is composed of a stator sheet and a flow guide member having different shapes or structures. Air inlet. In the case of assembling, the stator sheet is similarly assembled to the head with the device port corresponding to the rotor shaft seat.

  When the first cooling fan rotates in the cooling portion of the sewing head, the external air flow passes through the first air inlet, the air flow is concentrated by the flow guide member, and the air flow is sent to the sewing machine head by the flow guide port. After cooling the head, the airflow is discharged from the exhaust port below the flow guide member.

  The first air inlet is provided with a vent hole plate in an opening at a side edge of the flow guide member, and the vent hole plate has a plurality of openings so that an external air flow can enter from the vent hole plate independently. The first air inlet is located on the end face of the stator sheet, and has a concave structure extending from the selected side edge toward the flow guide port in order to form an airflow passage. One end of the airflow passage is an opening above the selected side edge, and the other end penetrates the flow guide port and guides the airflow to the flow guide port.

In the cooling part of the motor, the assembled rotor shaft seat protrudes from the device port and is used to attach the second fan and the intake hood. The intake hood has a plurality of second air inlets penetrating therethrough.
When the second fan rotates, the external airflow flows from the second air inlet separately from the first air inlet 231 and is sent to the stator sheet to cool the stator sheet. The intake hood covers the outside of the second fan and the stator seat. The airflow used for cooling is directly discharged along the exhaust gap between the stator seat and the intake hood.

  Compared with the prior art, the present invention improves the disadvantages of the conventional design where the air entry passage is shared, and provides two heat dissipating structures each for taking in external airflow. The airflow after cooling the motor passes through the exhaust gap utilizing the gap between the attached structures. The airflow used for cooling is directly discharged. Conventionally, the airflow cooling structure is separated into two sets of the motor and the sewing machine by replacing the arrangement in which the airflow whose temperature has increased after cooling is continuously sent to the heat dissipation structure of the head. External cooling air is taken in by each of the two intake and exhaust heat radiation cooling structures, and the cooling effect of the sewing head and the motor cooling effect can be enhanced.

1 is an external perspective view of a sewing machine heat dissipation driving device according to a first embodiment of the present invention; 1 is an exploded perspective view of a heat dissipation drive device for a sewing machine according to a first embodiment of the present invention. 1 is a cross-sectional view of a heat dissipation drive device for a sewing machine according to a first embodiment of the present invention. FIG. 6 is an external perspective view of a heat radiating drive device for a sewing machine according to a second embodiment of the present invention. It is a disassembled perspective view of the thermal drive device of the sewing machine by 2nd Embodiment of this invention. It is sectional drawing of the thermal radiation drive device of the sewing machine by 2nd Embodiment of this invention.

  1 to 3 are an external perspective view and a cross-sectional view of a heat dissipation drive device for a sewing machine according to a first embodiment of the present invention.

(First embodiment)
A heat radiating drive device for a sewing machine according to a first embodiment of the present invention will be described with reference to FIGS. When using the heat dissipation driving device 100 according to the first embodiment of the present invention, it is assembled to the head A1 constituting the sewing machine. As shown in FIG. 2, a main shaft A11 is provided on the end surface of the head A1, and the main shaft A11 is located at the bottom of the concave end surface groove A12. A through-hole A13 penetrating the outside is provided below the end face groove A12. About each component included in the heat dissipation driving device 100, the head end portion such as the end portion near the head A1, the side portion and the end surface, the head side portion, and the head end surface according to the assembly direction are described as illustrated in the drawing. To do.

  The heat dissipation drive device 100 includes a rotor shaft seat 10 and a stator sheet 20, and the rotor shaft seat 10 is provided with a rotor 11. Moreover, the head end is directly installed on the main shaft A11, and the first cooling fan 12 is provided at the head end. After being assembled, the first cooling fan 12 is positioned relative to the upper concave surface of the end surface groove A12.

  The stator sheet 20 includes a storage tank 21 for storing the stator assembly 22, and a hood portion 23 is connected to an open end of the storage tank 21, and the hood portion 23 includes a plurality of first air inlets 231. As shown in FIG. 3, the storage tank 21 is connected to the hood portion 23 and extends to the flow guide wall 24. On the other end face of the accommodation groove 21, a device port 25 corresponding to the rotor shaft seat 10 on the main shaft A11 is provided.

  The stator sheet 20 is provided with a flow guide member 30 on the end surface of the head. The flow guide member 30 has a flake body, is provided with a flow guide port 31, and is positioned relative to the head end surface of the hood portion 23.

  When assembled, the stator sheet 20 is provided on the end surface of the head A1 using the position where the device port 25 corresponds to the rotor shaft seat 10, and the hood portion 23 has the end surface hood of the head covered with the end surface of the head A1. The first cooling fan directly faces the flow guide port 31.

  When the first cooling fan 12 rotates, the external airflow is sucked from the first air inlet 231 as shown by the dotted line above the storage tank 21 in FIG. The airflow is sucked and then intensively flows along the flow guide wall 24 to the flow guide member 30, and is sent to the head A1 through the flow guide contact 31, thereby cooling the head A1.

  The heat dissipation driving device 100 can suck an external airflow independently at the air inlet on the stator sheet 20, and the external airflow as a cooling airflow for radiating the head A <b> 1 is used as the flow guide wall 24 and the flow guide member 30. The installation surface is mixed and configured to concentrate the airflow, and the airflow is guided to enhance the cooling effect of the head A1.

The stator sheet 20 is installed on the end surface of the head A1, and the rotor shaft seat 10 protrudes from the device port 25 and is used to attach the handwheel 40. The handwheel 40 is provided with a plurality of second air inlets 41 penetrating therethrough, and a second cooling fan 42 is disposed on the side of the head.
When the second cooling fan 42 rotates, the external airflow flows from the second air inlet 41 separately from the first air inlet 231 and is sent to the stator sheet 20 to cool the stator sheet 20. The cooled airflow is discharged directly from the gap between the stator sheet 20 and the handwheel 40 (as shown in FIG. 3, the airflow is discharged to the outside from the position of the solid line between the stator sheet 20 and the handwheel 40. )

  The second cooling fan 42 may be integrally formed on the head end surface of the handwheel 40 as necessary.

  The heat dissipation driving device 100 sucks an external airflow independently through the air entrance of the handwheel 40 and functions as a cooling airflow for radiating heat from the stator sheet 20. The cooled airflow is directly discharged along the stator sheet 20. The prior art replaces the arrangement in which the air flow continues to be sent to the heat radiating structure of the head as the temperature rises as it is used for cooling, and separates the cooling structure for the incoming air into two sets of motor and sewing machine. Due to the gap between the stator sheet 20 and the handwheel 40, the airflow whose temperature has been increased can be directly discharged to the outside, and the influence on the cooling effect on the sewing machine (as in the head A1) can be reduced. It is also useful for the effect.

(Second Embodiment)
4 to 6 are an external perspective view and a cross-sectional view of a heat dissipation driving device for a sewing machine according to a second embodiment of the present invention.

  When used, the heat radiation driving device 100A according to the second embodiment of the present invention is assembled to the head A2 constituting the sewing machine. As shown in FIG. 5, a spindle A21 is provided on the end surface of the head A2. For each component included in the heat dissipation driving device 100A, as shown in the drawing, the end portion approaching the head A2, the head end portion such as the side portion and the end surface, the head side portion, and the head end surface according to the assembly direction. Explained.

  The main technology and implementation principle according to the second embodiment are substantially the same as those of the first embodiment and have the same functions. For the sake of simplicity, the same reference numerals are used and the description is omitted. To do. In order to match the structure and appearance of the head A2, the structure or appearance of the stator sheet 20A and the flow guide member 30A are different from those of the first embodiment, and the second fan and intake hood instead of the handwheel of the first embodiment. Replace with 60A.

  Similarly, with respect to the stator sheet 20 of the heat dissipation drive device 100A according to the second embodiment of the present invention, the stator tank 22A is provided with a stator assembly 22A. A hood portion 23A is also connected to the open end of the storage tank 21A, and the other end face is provided with a device port 25A corresponding to the rotor shaft seat 10 on the main shaft A21.

  The hood part 23A according to the second embodiment of the present invention does not have an air inlet, and the storage tank 21A is connected to the hood part 23A as shown in FIG. 6, like the flow guide wall 24 according to the first embodiment. Does not stretch.

  Compared to the first embodiment, the flow guide member 30A has a thicker plate, but is installed on the end surface of the head of the stator sheet 20A as in the first embodiment. The flow guide member 30A is provided with a flow guide port 31A, and an exhaust port 33A is provided on the side below the plate. And the 1st air entrance 32A is provided corresponding to another side, and as shown in FIG. 5, the exhaust port is provided in two sides. A vent hole plate 321A is provided at the opening of the first air inlet 32A, and a plurality of apertures are formed in the vent hole plate 321A.

  As shown in FIGS. 5 and 6, the first air inlet 32 </ b> A of the flow guide member 30 </ b> A is positioned relative to the connection end surface of the stator sheet 20 </ b> A. The first air inlet 32A has a concave structure extending from the side edge toward the flow guide port 31A in order to form an airflow passage. One end of the air flow passage is an opening above the selected side edge, and the other end penetrates to the flow guide port 31A, and the external air flow sucked from the vent hole plate 321A is the first. It guides to the flow guide port 31A along the air flow path of the air inlet 32A.

  When assembled, the stator sheet 20 </ b> A is provided on the end surface of the head A <b> 2 using a position where the device port 25 </ b> A corresponds to the rotor shaft seat 10. As shown in FIG. 4, the head end surface of the flow guide member 30A is directly covered by the end surface of the head A2, and the first cooling fan 12 is positioned in the flow guide port 31A.

  When the first cooling fan 12 rotates, an external air flow is sucked from the first air inlet 32A as shown by a dotted line above the vent hole plate 321A in FIG. The airflow is concentrated and flows to the flow guide member 30A and is sent to the head A2 through the flow guide port 31A, thereby cooling the head A2. Finally, after the airflow cools the head A2, the airflow is directly discharged from the flow guide member 30A below the flow guide member 30A.

  The heat dissipation driving device 100A can suck the external airflow independently at the air entrance on the flow guide member 30A. At that time, the external airflow acts as a cooling airflow for dissipating the head A2. By installing the first air inlet 32A and the flow guide port 31A, the airflow is concentrated to guide the flow of the airflow, and the cooling effect of the head A2 is enhanced.

  The stator sheet 20A constitutes the flow guide member 30A and is installed after the end face of the head A2. The rotor shaft seat 10 protrudes from the device port 25A and is used to attach the second fan 50A and the intake hood 60A. The intake hood 60A has a plurality of second air inlets 61A that penetrate therethrough and covers the second fan 50A and the stator seat 20A.

  When the second fan 50A rotates, the external airflow flows from the second air inlet 61A separately from the first air inlet 231 and is sent to the stator sheet 20A to cool the stator sheet 20A. The cooling airflow is directly discharged from the gap between the stator sheet 20A and the intake hood 60A (as shown in FIG. 6, it is discharged to the outside from the solid line position near the intake hood 60A).

  The heat radiating drive device 100A sucks an external air flow independently through the air inlet of the intake hood 60A. And as a cooling airflow for radiating the stator sheet 20A, since the airflow flows on most of the outer surface of the stator sheet 20A during the cooling process, the cooling effect of the stator sheet 20A can be enhanced. The cooling airflow is directly discharged along the exhaust gap between the stator sheet 20A and the intake hood 60A. In the prior art, the arrangement is such that the airflow that has been used for cooling and whose temperature has risen continues to be sent to the heat dissipation structure of the head A2, and the cooling structure for the incoming air is separated into two sets of the motor and the sewing machine. The air flow whose temperature has risen can be directly discharged to the outside of the stator sheet 20A to reduce the influence on the cooling effect on the sewing machine (such as the head A2), which also helps the cooling effect of the head A2.

  The above is a preferred embodiment of the present invention, and the present invention is not limited to that described in the above embodiment, and various design changes and corrections can be made without departing from the spirit of the invention. Of course, it can be replaced equivalently.

A1, A2 Head A11, A1 Main shaft A12 End face groove A13 Through hole 10 Rotor shaft seat 100, 100A Heat radiation drive device 11 Rotor 12 First cooling fan 20, 20A Stator seat 21, 21A Housing tank 22, 22A Stator assembly 23, 23A Hood Portion 231 First air inlet 24 Flow guide wall 25, 25A Device port 30, 30A Flow guide member 31A Flow guide port 32A First air inlet 321A Vent hole plate 33A Exhaust port 40 Handwheel 41 Second air entry Port 42 Second cooling fan 50A Second fan 60A Intake hood

Claims (13)

A sewing machine heat dissipating drive device provided on a sewing machine head having a main shaft and including a rotor shaft seat, a stator sheet, and a flow guide member,
The rotor shaft seat is directly provided on the main shaft, and the first cooling fan is provided on the head of the sewing machine,
The stator seat has a plurality of first air inlets, wherein a device port is formed corresponding to the rotor shaft seat,
The flow guide member has a flow guide port, and is installed on an end surface of the stator sheet on the head side,
The stator sheet is assembled to the head by the device port corresponding to the position of the rotor shaft seat,
When the first cooling fan rotates, an external airflow is sucked independently from the first air inlet, the airflow is concentrated by the flow guide member, and the airflow is sent to the head by the flow guide port, A heat radiating drive device for a sewing machine characterized in that the head is cooled.   The stator sheet has a storage tank, a hood portion is connected to an opening end of the storage tank, the device port is located on the other end surface of the storage tank, and the first air entry The heat radiating drive device for a sewing machine according to claim 1, wherein the mouth is located in the hood portion.   The stator sheet includes a storage tank, a hood portion is connected to an opening end of the storage tank, a flow guide wall is extended to a connection portion of the storage tank, and the first air inlet is provided. The heat radiating drive device of the sewing machine according to claim 1, wherein the sucked airflow flows toward the flow guide member along the flow guide wall. An end face groove is formed in the head of the sewing machine, and a through hole communicating with the outside is provided below the end face groove,
2. The heat radiating drive device for a sewing machine according to claim 1, wherein after the head is cooled, an air flow is discharged from the through hole.   The sewing machine heat dissipation driving device according to claim 1, wherein the flow guide member is a flake. The rotor shaft seat after assembly protrudes from the device opening of the stator seat, and has a plurality of second air inlets penetrating therethrough, and a handwheel on which a second cooling fan is arranged on the side of the head is attached.
When the second cooling fan rotates, an external airflow flows from the second air inlet, separately from the first air inlet, and is sent to the stator sheet to cool the stator sheet. The heat dissipation drive device for a sewing machine according to claim 1, wherein:   The heat dissipation drive device for a sewing machine according to claim 6, wherein an exhaust gap is formed between the stator seat and the handwheel to directly discharge the cooled airflow.   The said 2nd cooling fan is integrally molded and installed in the said head side of the said handwheel, The heat radiating drive device of the sewing machine of Claim 6 characterized by the above-mentioned. A sewing machine heat dissipating drive device provided on a sewing machine head having a main shaft and including a rotor shaft seat, a stator sheet, and a flow guide member,
The rotor shaft seat is directly provided on the main shaft, and the first cooling fan is provided on the head of the sewing machine,
The stator seat has a device opening corresponding to the rotor shaft seat,
The flow guide member is installed on the head side of the stator sheet and provided with a flow guide port, an exhaust port is provided on a lower side of the stator sheet, and a first air entry is provided on at least one side. Have a mouth,
The stator sheet is assembled to the head by the device port corresponding to the position of the rotor shaft seat,
When the first cooling fan rotates, an external airflow is sucked independently from the first air inlet, the airflow is concentrated by the flow guide member, and the airflow is sent to the head by the flow guide port, An apparatus for radiating heat of a sewing machine, wherein after the head is cooled, airflow is discharged from an exhaust port.   The first air inlet is provided with a vent hole plate in an opening at a side edge of the flow guide member, and the vent hole plate has a plurality of openings so that an external air flow can independently enter from the vent hole plate. The heat-dissipating drive device for a sewing machine according to claim 9, wherein: The first air inlet is located on an end surface of the stator sheet, and has a concave structure extending from a selected side edge toward the flow guide port to form an air flow passage.
The one end of the air flow passage is an opening above the selected side edge, and the other end penetrates the flow guide port and guides the air flow to the flow guide port. Sewing machine heat dissipation drive. The rotor shaft seat after assembly protrudes from the device port, and a second fan and an intake hood having a plurality of second air inlets penetrating therethrough are attached,
When the second fan rotates, an external airflow flows from the second air inlet, separately from the first air inlet, and is sent to the stator sheet to cool the stator sheet. The heat dissipation drive device for a sewing machine according to claim 9, The intake hood covers the outside of the second fan and the stator seat,
13. The heat radiating drive device for a sewing machine according to claim 12, wherein the airflow used for cooling is directly discharged along an exhaust gap between the stator seat and the intake hood.

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