WO2019149222A1 - 电加热元件、及其软化装置及控制方法 - Google Patents

电加热元件、及其软化装置及控制方法 Download PDF

Info

Publication number
WO2019149222A1
WO2019149222A1 PCT/CN2019/073930 CN2019073930W WO2019149222A1 WO 2019149222 A1 WO2019149222 A1 WO 2019149222A1 CN 2019073930 W CN2019073930 W CN 2019073930W WO 2019149222 A1 WO2019149222 A1 WO 2019149222A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric heating
heating element
softening device
supply passage
air
Prior art date
Application number
PCT/CN2019/073930
Other languages
English (en)
French (fr)
Inventor
刘志武
温占刚
Original Assignee
捷温有限责任公司
刘志武
温占刚
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 捷温有限责任公司, 刘志武, 温占刚 filed Critical 捷温有限责任公司
Priority to KR1020207024713A priority Critical patent/KR20200116131A/ko
Priority to US16/965,698 priority patent/US20210040662A1/en
Priority to KR1020237005122A priority patent/KR20230026542A/ko
Publication of WO2019149222A1 publication Critical patent/WO2019149222A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/62—Stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B67/00—Devices incorporated in sewing machines for lubricating, waxing, or colouring the threads
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B81/00—Sewing machines incorporating devices serving purposes other than sewing, e.g. for blowing air, for grinding
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B95/00—Preparatory or finishing operations in connection with hand sewing
    • D05B95/04—Softening material prior to sewing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/033—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wrapping or unwrapping wire connections
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/36—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/779—Heating equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5678—Heating or ventilating devices characterised by electrical systems
    • B60N2/5685—Resistance
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2303/00—Applied objects or articles
    • D05D2303/40—Electronic or electrical components
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00—Operations on the work before or after sewing
    • D05D2305/22—Physico-chemical treatments
    • D05D2305/26—Heating
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/12—Vehicles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings

Definitions

  • the present application relates generally to electric heating elements, particularly electrical heating elements employed in automotive heating mats, such as metal electric heating wire sewing machines, and the present application also relates generally to the use in such sewing apparatus for making said A softening device for softening an electric heating element and a method of controlling the same.
  • the metal electric heating wire In the production process of the automobile heating mat, it is necessary to sew the metal electric heating wire into the substrate of the automobile seat cushion in a predetermined pattern.
  • the metal electric heating wire is usually coated with an insulating skin.
  • the metal electric heating wire In order to improve the heating ability of the automobile heating mat, the metal electric heating wire is sewn to the substrate in a higher density pattern. Because the material used to make the insulation is usually hard, this causes the metal electric heating wire to repeatedly bend at a relatively sharp angle on the substrate. In the case where the pattern is particularly dense, there is a possibility that the insulation of the metal electric heating wire is broken, and it is prone to failure such as short circuit during use and reduction in product life.
  • the present application is directed to a device for softening an electric heating wire coated with a hard insulating sheath, thereby ensuring that the electric heating wire can be sewn to a substrate of a heating mat with its insulating skin without damage. .
  • an electric heating element comprising an electric heating wire and an outer insulating layer attached to the electric heating wire, the electric heating element having a bent portion adapted to be fixed on the pad; The bent portion cannot be straightened at room temperature without damaging the outer insulating layer or the electric heating wire.
  • the bend has a bend radius of no more than 6 mm, preferably between 1 and 6 mm, particularly preferably between 4 and 6 mm.
  • the outer diameter of the electrical heating element is less than 1.5 mm; and/or the thickness of the outer insulating layer is between 0.01 and 0.2 mm, preferably between 0.1 and 0.2 mm.
  • the outer insulating layer is made of a polymeric material, preferably PA12 or PES.
  • the electric heating element has an operating temperature of no more than 150 degrees Celsius, and the bent portion cannot be straightened at the operating temperature without damaging the outer insulating layer or the electric heating wire.
  • an electric heating device in particular a heating pad, in particular a heating pad for a vehicle, having a substrate and the above-described electric heating element fixed on the substrate .
  • the curved portion of the electric heating element is secured to the substrate by stitching using stitching.
  • the suture is preferably made of polyester.
  • the stitch length of the suture for the bend of the electric heating element does not exceed 2 mm.
  • a softening device for softening an outer insulating skin of an elongated electric heating element, in particular a metal electric heating wire, to be fixed to a mat, in particular a car seat or cushion,
  • the softening device includes:
  • the electric heating element can be heated by hot air to a heating softening temperature suitable for enabling the electric heating element to be fixed to the substrate of the mat in a manner to form a bend, such that the bend is at room temperature if not Damage to the outer insulation or heating wire cannot be straightened.
  • the air supply channel and the supply channel are defined within the body.
  • the air supply passage includes a first air supply passage section located upstream and a second air supply passage section located downstream, and the second air supply passage section is substantially parallel to the supply passage .
  • the softening device comprises a connecting tube for holding the electrical heating element discharged from the body.
  • the softening device further includes an outlet connector detachably mounted on the body, the outlet connector being provided with a through cavity through which the electric heating element passes, the connecting tube and the The chamber is hermetically connected.
  • the connecting tube is a bellows
  • a coil spring is fixed in the bellows close to the through cavity
  • the electric heating element passes through the hollow interior of the coil spring
  • the coil spring is fixed in the bellows in an interference fit.
  • the through cavity is in airtight communication with the opening cavity, and the through cavity is provided to be contracted in a direction away from the opening cavity. Inner circumference.
  • the softening device includes a heat source that generates hot air that can be supplied through the air supply passage.
  • the softening device comprises a temperature sensor for detecting the temperature of the hot air.
  • a sewing apparatus for sewing an elongated electric heating element, in particular a metal electric heating wire, having an outer insulation to a mat, in particular a car seat or cushion, said sewing apparatus comprising :
  • the aforementioned softening device mounted on the frame, wherein an elongated electric heating element having an outer insulation is supplied from the feeding device to the softening device, and after being softened by the softening device, Sewing head reception.
  • the flow rate of the air is adjusted and/or the air temperature is raised and lowered.
  • the electric heating element coated with the hard insulation can be softened before being sewn, so that the electric heating element can be bent in a relatively complicated pattern, that is, can be bent at a small radius without insulating the skin. damaged.
  • the softened electric heating element can be prevented from interfering with the operation of the sewing head during sewing.
  • Figure 1 schematically shows a simplified schematic view of a sewing apparatus in which a softening device for softening an electric heating element according to an embodiment of the present application is installed;
  • Figure 2a schematically shows an outlet connection of a softening device according to the present application and a connecting tube therewith;
  • Figure 2b schematically shows an exploded view of the outlet connector and its connecting tube
  • Fig. 3 schematically shows a flow chart of one embodiment of a control method of a device according to the present application.
  • FIG. 1 shows schematically a simplified schematic view of a sewing apparatus 100 for sewing an electric heating element, in particular a metal electric heating wire, onto a mat, such as an automotive interior cushion or cushion.
  • the sewing apparatus 100 generally includes a fixed frame 110, a supply device 120 mounted on the frame 110, and a sewing head 130 that can be moved as needed relative to the frame 110.
  • the electric heating element is an elongated electric heating body coated with an insulating sheath, and can be sewn to the base material of the mat by the sewing head 130, thereby achieving a heating function after energization.
  • the metal electric heating wire is repeatedly bent when sewing in a pattern of a small corner. Therefore, the harder insulating skin may break, causing the metal electric heating wire to be exposed.
  • the sewing apparatus 100 is provided with a softening device 200 for heating and softening the electric heating elements.
  • the softening device 200 includes a body 210 that is fixedly mounted on the frame 110.
  • a supply passage 211 is provided in the body 210.
  • the elongated electric heating element 121 from the supply device 120 can be conveyed through the supply channel 211 of the body 210.
  • Another air supply passage is also provided in the body 210.
  • the air supply passage is in fluid communication with a heat source 220.
  • the heat source 220 can be mounted, for example, on the frame 110 of the sewing apparatus 100.
  • the heat source 220 can be in airtight communication with the air supply passage of the body 210 via the insulated duct 221 .
  • the heat source 220 may include an electric heating device (not shown) and a gas pump device (not shown).
  • the electric heating device can be controlled to generate heat and heat the air.
  • the air pump device can blow the heated air to the air supply passage of the body 210 via the insulated pipe 221, and the blown air volume and/or wind speed can be adjusted as needed.
  • the air supply passage of the body 210 may include a first air supply passage section 212a and a second air supply passage section 212b.
  • the first air supply passage section 212a is substantially perpendicular to the supply passage 211 of the body 210
  • the second air supply passage 212b is substantially parallel to the supply passage 211 of the body 210. Viewed from the air flow, the first air supply passage section 212a is located upstream and the second air passage section 212b is located downstream.
  • An opening cavity 213 is also disposed in the body 210.
  • the air supply passage of the body 210 is spaced apart from the supply passage 211, and only at the open cavity 213, the second air supply passage 212b communicates with the supply passage 211.
  • the high-temperature hot air is blown into the air supply passage of the body 210, it is not directly blown toward the electric heating element, causing its outer insulating skin to be heated and melted too quickly.
  • the high-temperature hot air passing through the air supply passage of the body 210 can only be blown into the opening cavity 213 in a direction parallel to the supply passage 211, where the electric heating element is heated, and the outer insulation is relatively gently heated to soften .
  • the body 210 can also be connected with an outlet connector 230.
  • the outlet connector 230 can be removably mounted to the body 210 by bolts or other tools familiar to those skilled in the art.
  • a through cavity 231 is formed in the outlet connector 230.
  • the through cavity 231 is connected to the open cavity 213 when the outlet connector 230 is mounted in position on the body 210.
  • the through cavity 231 extends through the outlet connection 230.
  • the through cavity 231 is formed with a narrowed inner peripheral surface section. The inner peripheral surface section is narrowed toward the direction away from the opening cavity 213, so that the flow rate of the hot air is relatively slowed after being supplied thereto, preventing the "return gas" phenomenon from occurring.
  • a connector 233 is extended on the side of the outlet connector 230 opposite the body 210.
  • the connector 233 is penetrated by the through cavity 231.
  • the outlet connector 230 is also provided with an auxiliary connector 240.
  • the auxiliary connector 240 also extends with a connector 241, and a through hole is formed through the auxiliary connector 240 and its connector 241.
  • the body 210 of the softening device 200 is coupled to the sewing head 130 of the sewing apparatus 100 by a connecting tube via an outlet connector 230 and an auxiliary connector 240.
  • a connecting tube via an outlet connector 230 and an auxiliary connector 240.
  • four (or other number of rows) through holes are provided in each of the outlet connector 230 and the auxiliary connector 240 such that the outlet connector 230 and the auxiliary connector 240 are When these through holes are mounted in a positive contact, the bolts can be correspondingly inserted into the respective through holes and fixed to the body 210.
  • a flange is formed on the connector 233 of the outlet connector 230 such that a length of silicone tubing or any other resilient sealing hose 232 can be secured over the connector 233.
  • the elastic sealing hose 232 is sized to be inserted into the through hole when the connector 233 is inserted into the through hole of the auxiliary connector 240, and at least partially from the connector 241 of the auxiliary connector 240. Outstretched. Further, from the open end opposite to the body 210, a length of the coil spring 251 can be inserted into the elastic sealing hose 232, and a bellows 250 can be fitted over the elastic sealing hose 232.
  • the outer diameter of the coil spring 251 is set to be slightly larger than the inner diameter of the elastic sealing hose 232, and the inner diameter of the bellows 250 is set to be slightly smaller than the outer diameter of the elastic sealing hose 232, so that the coil spring 251, the bellows 250, and the elastic sealing hose 232
  • the interference fit is used to achieve a relative fixation between them.
  • the electric heating element 121 softened via the softening device 200 continuously passes through the hollow interior of the coil spring 251 and the bellows 250 moves to reach the sewing head 130, and is sewn to the base of the mat by the sewing head 130. on. Due to the arrangement of the coil spring 251, the softened electric heating element 121 is less likely to be entangled in the bellows 250, and the use of the bellows 250 also avoids interference with the sewing head 130 as much as possible, affecting the sewing process.
  • the bellows 250 may constitute a connecting tube between the body 210 and the sewing head 130, and may be made of plastic or a heat insulating material to ensure that the softened electric heating element 121 does not move too fast during the movement of the bellows 250. Heat it up and harden again.
  • the elongated electric heating element 121 can be heated, for example, to a heating softening temperature prior to reaching the sewing head 130, adapted to enable the electric heating element 121 to be secured in a manner that forms a bend, such as by sewing. It is fixed to the substrate of the mat such that the electric heating element 121 cannot be straightened at room temperature or at the heating operating temperature of the heating element 121 itself (e.g., no more than 150 degrees) without damaging the outer insulation or the heating filament.
  • the heating operating temperature refers to the temperature at which the insulation of the heating element 121 is tolerated.
  • the above heating softening temperature is higher than room temperature or the heating operating temperature of the heating element 121. That is to say, the bent portion of the heating element 121 is shape-cured at room temperature or at a heating operating temperature, and cannot be deformed again without damaging the outer insulating skin or the heating wire.
  • the first air supply passage section 212a may be defined by a length of insulated duct inserted into the body 210.
  • the length of insulated pipe can be made of a material that is more insulating than the body 210 to avoid heat loss.
  • the second air supply passage section 212b may also be defined by a similar insulated pipe inserted into the body 210.
  • a temperature sensor 216 may be disposed in the first air supply passage section 212a and/or the second air supply passage section 212b.
  • the temperature of the air detected by the temperature sensor 216 may indirectly reflect the temperature of the outer insulation of the electrical heating element 121 and thus the extent to which it is softened. It will be apparent to those skilled in the art that temperature sensor 216 can also be disposed in outlet connector 230 and/or auxiliary connector 240 to detect the temperature of the hot air delivered therethrough.
  • the softening device 200 of the present application is not limited to the embodiments mentioned above or shown in the drawings.
  • the outlet connector 230 and/or the auxiliary connector 240 can be omitted such that the bellows 250 is hermetically coupled to the open cavity 213 of the body 210 directly in a manner familiar to those skilled in the art.
  • the first air supply passage section 212a and/or the second air supply passage section 212b may also be isolated from the supply passage 211 in the body 210 at any angle relative to the supply passage 211.
  • the ground setting is as long as it is ensured that the hot air in the air supply passage is not blown toward the electric heating element in the direction perpendicular to the supply passage 211 at the opening cavity 213.
  • the supply and supply passages 211 may also be defined by separate insulated conduits disposed outside of the body 210 such that the two separate insulated conduits meet at the open volume 213.
  • a central processing unit may be provided on the sewing apparatus 100 for controlling the operation of the feeding device 120, the sewing head 130, the softening device 200 and its heat source 220, respectively, and receiving and analyzing the temperature measurement of the temperature sensor 216. value. Therefore, the control method mentioned below can be executed in the central processing unit.
  • the softening device 200 is turned on.
  • the electric heating device of the heat source 220 and the air pump device are powered on.
  • hot air is blown into the air supply passage of the softening device 200.
  • the temperature of the air is measured using the temperature sensor 216 mentioned above.
  • the safety value is set to the maximum safe temperature at which the softening device 200 operates to ensure that the electric heating element softens. Above this temperature, the electric heating element may be damaged due to excessive temperature.
  • step S30 it is determined whether the measured temperature value is less than a preset operating temperature.
  • the operating temperature is less than the safe temperature.
  • the predetermined operating temperature is such that when the hot air reaches this temperature, the outer insulation of the electric heating element can be optimally softened so that the sewing head 130 sews a relatively complicated pattern. If the decision result in the step S40 is "NO”, the process goes to a step S90, and the softening device 200 is turned off. If the decision result in the step S40 is "YES”, the process proceeds to a step S50.
  • step S50 it is determined whether the absolute value of the difference between the measured temperature value and the preset operating temperature reaches the first limit value. If the decision result in the step S50 is "YES”, the process proceeds to a step S60. If the decision result in the step S50 is "NO”, the process proceeds to a step S70. In step S70, it is determined whether the absolute value of the difference between the measured temperature value and the preset operating temperature reaches the second limit value. If the decision result in the step S70 is YES, the process goes to a step S80. If the decision result in the step S70 is "NO”, the flow jumps to the step S20 to continue the loop.
  • Steps S60 and S80 involve tempering the hot air delivered in the softening device 200.
  • the first limit value and the second limit value are both positive numbers, and the first limit value is less than the second limit value.
  • the air pump device of the heat source 220 can be set to have a low power.
  • step S80 it can be set that the air pump device of the heat source 220 operates at a high power, thereby The flow rate of the heated hot air is increased, so that the speed at which the outer insulation of the electric heating element is heated and softened is also accelerated.
  • the power of the electric heating device of the heat source 220 can be separately adjusted in steps S60 and S80, respectively, to regulate the temperature of the supplied hot air, thereby correspondingly regulating the electric heating element.
  • the outer insulation is heated and softened at a rate.
  • the first limit value and the second limit value are set to ensure that the temperature of the hot air rises rapidly when the temperature of the hot air is larger than a preset operating temperature; when the temperature of the hot air is close to the preset work At the time of temperature, the temperature of the hot air is slowly increased, thereby avoiding any damage to the outer insulation of the electric heating element by accumulating the heated hot air.
  • the first limit may be set to be greater than the second limit, such that the operations in steps S60 and S80 described above may be reversed accordingly.
  • an electric heating element comprising an electric heating wire and an outer insulating layer attached to the electric heating wire, the electric heating element having a fitting suitable for being fixed to the pad by sewing
  • the bent portion of the electric heating element cannot be straightened at room temperature without damaging the outer insulating layer or the electric heating wire.
  • the bending radius of the bend is not more than 6 mm, preferably between 1 and 6 mm, particularly preferably between 4 and 6 mm.
  • the electrical heating element has an outer diameter of less than or equal to 1.5 mm.
  • the outer insulating coating has a thickness of from 0.001 to 0.2 mm, preferably from 0.1 to 0.2 mm.
  • the outer insulating coating is made of a polymeric material, preferably PA12 or PES.
  • an electric heating device in particular a heating mat, in particular a heating mat for a vehicle, having a substrate and at the base
  • An electric heating element fixed on the material the electric heating element having an electric heating wire and an outer insulating layer attached to the electric heating wire, the electric heating element being shaped to have a bent portion, if the electric heating element is at room temperature
  • the outer insulating layer or the electric heating wire cannot be straightened without breaking.
  • the fixing of the curved portion of the electric heating element on the substrate can be achieved by means of sewing, wherein sewing refers to the sewing of the sewing head by means of sewing of the suture on the substrate.
  • the bend is stretched onto the substrate.
  • the stitch length of the stitches does not exceed 2 mm.
  • the electrical heating element can also be secured to the substrate by other suitable means such as bonding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

本申请公开了一种软化装置(200)，用于使得待缝纫到垫、特别是汽车坐垫或靠垫上的细长电加热元件(121)、特别是金属电加热丝的外绝缘皮软化，所述软化装置(200)包括：本体(210)，所述本体设有供气通道以及供料通道(211)，所述本体还设有开口容腔(213)，热空气能够被供应通过所述供气通道，所述细长电加热元件(121)能够被供应通过所述供料通道(211)，所述供气通道与所述供料通道(211)彼此隔离并且均通到所述开口容腔(213)中，所述电加热元件(121)经过所述供料通道(211)和所述开口容腔(213)后从所述本体(210)排出。本申请还公开了电加热元件(121)、采用软化装置的缝纫设备以及软化装置的控制方法。

Description

电加热元件、及其软化装置及控制方法 技术领域
本申请大体上涉及电加热元件、特别是在汽车加热垫中采用的电加热元件、例如金属电加热丝的缝纫设备，本申请还大体上涉及在这种缝纫设备中采用的用于使得所述电加热元件软化的软化装置及其控制方法。
背景技术
在汽车加热垫的制作过程中，需要将金属电加热丝以预定的图案缝纫到汽车坐垫的基材上。金属电加热丝通常外表面包覆有绝缘皮。为了提高汽车加热垫的加热能力，会以较高密度的图案来将金属电加热丝缝纫到基材上。因为制作绝缘皮的材质通常较硬，这就造成了金属电加热丝会在基材上以相对急剧的角度反复弯折。在图案特别密的情况下，很有可能造成金属电加热丝的绝缘皮断裂，容易出现使用时短路、产品寿命降低等的失效情况。
发明内容
本申请旨在提出一种在缝纫包覆有硬绝缘皮的电加热丝时对其软化的装置，从而确保这种电加热丝能够以其绝缘皮无损地被缝纫到一加热垫的基材上。
根据本申请的一个方面，提供了一种电加热元件，包括电加热丝以及在所述电加热丝上附着的外绝缘层，所述电加热元件具有适于被固定在垫上的弯曲部；所述弯曲部在室温下如果不破坏所述外绝缘层或所述电加热丝就无法被拉直。
可选地，所述弯曲部的弯曲半径不超过6mm，优选是在1与6mm之间，特别优选是在4与6mm之间。
可选地，所述电加热元件的外径小于1.5mm；和/或，所述外绝缘层的厚度是在0.01与0.2mm之间，优选是在0.1与0.2mm之间。
可选地，所述外绝缘层由聚合材料、优选PA12或PES制成。
可选地，所述电加热元件具有不超过150摄氏度的工作温度，并且所述弯曲部在工作温度下如果不破坏所述外绝缘层或所述电加热丝就无法被拉直。
根据本申请的另一个方面，还提供了一种电加热装置，特别是加热垫、尤其车用加热垫，所述电加热装置具有基材以及在所述基材上固定的上述的电加热元件。
可选地，所述电加热元件的弯曲部利用缝线通过缝纫的方式被固定在所述基材上。缝线优选由聚酯制成。
可选地，用于电加热元件的弯曲部固定的缝线的针距不超过2mm。
根据本申请的另一个方面，提供了一种软化装置，用于使得待固定到垫、特别是汽车坐垫或靠垫上的细长电加热元件、特别是金属电加热丝的外绝缘皮软化，所述软化装置包括：
本体，所述本体设有供气通道以及供料通道，所述本体还设有开口容腔，热空气能够被供应通过所述供气通道，所述细长电加热元件能够被供应通过所述供料通道，所述供气通道与所述供料通道彼此隔离并且均通到所述开口容腔中，所述电加热元件经过所述供料通道和所述开口容腔后从所述本体排出，所述电加热元件能够由热空气被加热至一适于使得电加热元件能够以形成弯曲部的方式被固定到垫的基材上的加热软化温度，从而所述弯曲部在室温如果不破坏外绝缘皮或加热丝就无法被拉直。
可选地，所述供气通道与所述供料通道在所述本体内被限定。
可选地，所述供气通道包括位于上游的第一供气通道区段和位于下游的第二供气通道区段，并且所述第二供气通道区段与所述供料通道大致平行。
可选地，所述软化装置包括连接管，用于使得从所述本体排出的电加热元件保温。
可选地，所述软化装置还包括在所述本体上能够拆卸地安装的出口连接件，所述出口连接件设有供所述电加热元件穿过的通腔，所述 连接管与所述通腔气密性连接。
可选地，所述连接管为波纹管，一段螺旋弹簧在所述波纹管内靠近所述通腔固定，所述电加热元件穿过所述螺旋弹簧的中空内部。
可选地，所述螺旋弹簧以过盈配合的方式在所述波纹管中被固定。
可选地，在所述出口连接件被安装就位后，所述通腔与所述开口容腔气密性连通，并且所述通腔设有沿着远离所述开口容腔的方向收缩的内周面。
可选地，所述软化装置包括热源，其产生能够被供应通过所述供气通道的热空气。
可选地，所述软化装置包括用于检测热空气的温度的温度传感器。
根据本申请的另一个方面，提供了一种将具有外绝缘皮的细长电加热元件、特别是金属电加热丝缝纫到垫、特别是汽车坐垫或靠垫上的缝纫设备，所述缝纫设备包括：
机架；
相对于所述机架固定的供料装置；
相对于所述机架能够移动的缝纫头；以及
在所述机架上安装的前述的软化装置，其中，具有外绝缘皮的细长电加热元件自所述供料装置被供入所述软化装置，并且经过所述软化装置软化后由所述缝纫头接收。
根据本申请的另一个方面，还提供了一种用于控制前述的软化装置的方法，包括：
测量在所述软化装置中流动的空气温度；以及
基于测量结果，调节空气的流速和/或使得空气温度升降。可选地，在温度测量值接近一规定值时，降低空气的流速和/或使得空气降温
采用本申请的上述技术手段，包覆有硬绝缘皮的电加热元件能够在被缝纫之前软化，从而电加热元件能够以相对复杂的图案、即能够以较小的半径被弯折而绝缘皮不破损。此外，在缝纫的过程中，软化后的电加热元件可以被防止妨碍缝纫头的操作。
附图说明
从后述的详细说明并结合下面的附图将能更全面地理解本申请的前述及其它方面。需要指出的是，各附图的比例出于清楚说明的目的有可能不一样，但这并不会影响对本申请的理解。在附图中：
图1示意性示出了缝纫设备的简化示意图，其中安装有根据本申请的一个实施例的用于使得电加热元件软化的软化装置；
图2a示意性示出了根据本申请的软化装置的出口连接件及与其相配的连接管；
图2b示意性示出了出口连接件及其连接管的分解图；以及
图3示意性示出了根据本申请的装置的控制方法的一个实施例的流程图。
具体实施方式
在本申请的各附图中，结构相同或功能相似的特征由相同的附图标记表示。
图1示意性示出了用于将电加热元件、特别是金属电加热丝缝纫到垫、例如汽车内饰坐垫或靠垫上的缝纫设备100的简化示意图。缝纫设备100大体上包括固定的机架110、在机架110上安装的供料装置120、以及相对于机架110可以依据需要移动的缝纫头130。
在本申请中，电加热元件为外包覆有绝缘皮的细长电加热体，能够通过缝纫头130被缝纫到垫的基材上，从而在通电后实现加热功能。正如说明书背景技术部分中所提到的，对于外包覆有绝缘皮的金属电加热丝而言，当以较小拐角的图案进行缝纫时，金属电加热丝会被反复地弯折。因此，较硬的绝缘皮有可能折断，造成金属电加热丝外露。
为此，缝纫设备100设有用于使得电加热元件加热软化的软化装置200。根据图1所示的一个示意性实施例，软化装置200包括在机架110上固定地安装的本体210。在本体210中设置有一个供料通道211。来自供料装置120的细长电加热元件121能够穿过本体210的供料通道211被输送。在本体210中还设有另一供气通道。该供气通道与一热源220流体连通。热源220例如可以在缝纫设备100的机架110上安装。例如，热源220可以经由隔热管道221与本体210的供气通 道气密性连通。
热源220可以包括(未示出的)电加热装置以及(未示出的)气泵装置。电加热装置可以受控通电产生热量，并加热空气。气泵装置可以将加热后的空气经由隔热管道221吹送到本体210的供气通道中，并且吹送的风量和/或风速可以依据需要被调节。
如图1所示，本体210的供气通道可以包括第一供气通道区段212a以及第二供气通道区段212b。第一供气通道区段212a与本体210的供料通道211大体垂直，并且第二供气通道212b与本体210的供料通道211大体平行。从空气流向上看，第一供气通道区段212a位于上游，而第二空气通道区段212b位于下游。
在本体210中还设置有一开口容腔213。本体210的供气通道与供料通道211隔开，仅在开口容腔213处，第二供气通道212b与供料通道211相通。这样，当高温热空气被吹入本体210的供气通道后，不会直接吹向电加热元件，导致其外绝缘皮被过快加热而熔化。经过本体210的供气通道的高温热空气仅仅能够沿着与供料通道211平行的方向被吹送到开口容腔213中，在这里加热电加热元件，使其外绝缘皮相对缓和地升温而软化。
在开口容腔213处，本体210还可以连接有一出口连接件230。例如，该出口连接件230可以通过螺栓或者本领域技术人员熟悉的其它工具被能够拆卸地安装在本体210上。在出口连接件230中形成有通腔231。当出口连接件230在本体210上安装就位后，该通腔231与开口容腔213相连。该通腔231贯穿出口连接件230。此外，该通腔231形成有缩窄的内周面区段。该内周面区段朝向远离开口容腔213的方向缩窄，从而热空气在供应到此处后，流速相对被减缓，防止“返气”现象出现。
进一步如图2b所示，在出口连接件230的与本体210相反的一侧上，伸出有一连接头233。该连接头233由通腔231贯穿。此外，该出口连接件230还配有一辅助连接件240。该辅助连接件240也延伸有一连接头241，并且一通孔贯穿该辅助连接件240及其连接头241被形成。这样，当出口连接件230与辅助连接件240相接触之后，出 口连接件230的连接头233能够伸入到辅助连接件240的通孔中。
在本申请的一个实施例中，如图2a所示，软化装置200的本体210经由出口连接件230和辅助连接件240利用一连接管与缝纫设备100的缝纫头130相连。可以看出，在图2a的实施例中，在出口连接件230和辅助连接件240中各设有四个(或其它数量也行)通孔，从而当出口连接件230和辅助连接件240的这些通孔被对正接触安装时，螺栓可以相应地插入各通孔中并将它们固定至本体210。
进一步参照图2b，在出口连接件230的连接头233上形成有一圈凸缘，从而一段硅胶管或任何其它弹性密封软管232能够套在所述连接头233上固定。这样，弹性密封软管232的尺寸设置成，在连接头233插入辅助连接件240的通孔中时也可以一并插入到该通孔中，并且至少部分地从辅助连接件240的连接头241外伸出。此外，从与本体210相反的开口端，一段螺旋弹簧251能够被插入到弹性密封软管232中，并且一波纹管250能够套在弹性密封软管232上。螺旋弹簧251外径设置成稍微大于弹性密封软管232的内径，且波纹管250的内径设置成稍微小于弹性密封软管232的外径，从而螺旋弹簧251、波纹管250与弹性密封软管232之间分别为过盈配合，实现它们之间的相对固定。在缝纫设备100操作时，经由软化装置200被软化的电加热元件121连续地穿过螺旋弹簧251的中空内部以及波纹管250移动，到达缝纫头130，并由缝纫头130缝纫到垫的基材上。由于螺旋弹簧251的设置，软化后的电加热元件121不易在波纹管250中发生缠绕，并且波纹管250的采用也尽量避免了与缝纫头130的干涉，影响缝纫过程。
波纹管250可以构成本体210与缝纫头130之间的连接管，并且可以由塑料或者隔热材料制成，从而确保在软化后的电加热元件121在波纹管250内移动时不会因过快散热而再次变硬。
采用本申请的软化装置，细长电加热元件121能够例如在到达缝纫头130之前被加热至一加热软化温度，适于使得电加热元件121能够以形成弯曲部的方式被固定、例如通过缝纫被固定到垫的基材上，从而电加热元件121在室温或者在加热元件121本身的加热工作温度 (例如不超过150度)如果不破坏外绝缘皮或加热丝就无法被拉直。在本申请的上下文中，加热工作温度指的是加热元件121的绝缘皮的耐受温度。在本申请中，上述加热软化温度高于室温或者加热元件121的加热工作温度。也就是说，加热元件121的弯曲部在室温或者在加热工作温度时是形状固化的，如果不破坏外绝缘皮或加热丝就无法被再次变形。
在图1所示的实施例中，第一供气通道区段212a可以由插入本体210内的一段隔热管道限定。例如，该段隔热管道可以由隔热效果比本体210更佳的材料制成，从而避免热量向外流失。可选地，第二供气通道区段212b也可以由插入本体210内的一段类似的隔热管道限定。
为了监测供入软化装置200内的热空气的温度，可以在第一供气通道区段212a和/或第二供气通道区段212b中布置温度传感器216。温度传感器216所检测的空气温度可以间接反映电加热元件121的外绝缘皮的温度，并因而体现其被软化的程度。本领域技术人员应当清楚，温度传感器216也可以在出口连接件230和/或辅助连接件240中布置，以相应检测通过它们被输送的热空气的温度。
本领域技术人员应当清楚，本申请的软化装置200并不限于以上说明书提到的或附图示出的实施例。例如，在一替代实施例中，可以省略出口连接件230和/或辅助连接件240，从而波纹管250直接以本领域技术人员熟悉的方式气密性连接至本体210的开口容腔213。再例如，在一替代实施例中，第一供气通道区段212a和/或第二供气通道区段212b也可以相对于供料通道211的任何角度在本体210中与供料通道211隔离地设置，只要确保供气通道内的热空气在开口容腔213处不会沿着垂直于供料通道211的方向吹向电加热元件即可。
在一个替代的实施例中，供气通道和供料通道211也可以采用在本体210外侧布置的独立绝热管道来限定，从而这两个独立绝缘管道在开口容腔213处汇合。
以下参照图3说明根据本申请的软化装置的控制方法的一个实施例。需要指出的是，在缝纫设备100上可以设置一中央处理单元，用 于分别控制供料装置120、缝纫头130、软化装置200及其热源220的操作，并且接收并分析温度传感器216的温度测量值。因此，以下提到的控制方法可以在该中央处理单元中被执行。
根据该控制方法的一个实施例，在步骤S10，软化装置200被开机运行。例如，将热源220的电加热装置以及气泵装置通电运行。这样，热空气被吹送到软化装置200的供气通道中。然后，在步骤S20，利用上述提到的温度传感器216测量空气温度。在步骤S30，判断所测量的温度值是否大于一事先规定的安全值。例如，该安全值设置为软化装置200工作时确保电加热元件软化的最大安全温度。超过该温度，则电加热元件有可能因温度过高而受损。如果步骤S30的判断结果为“是”，则跳转到步骤S90，软化装置200被关机。如果步骤S30的判断结果为“否”，则跳转到步骤S40。在步骤S40，判断所测量的温度值是否小于预设的工作温度。工作温度小于安全温度。该预设的工作温度设置成，在热空气达到该温度时，电加热元件的外绝缘皮能够被最佳地软化，以便缝纫头130缝纫相对复杂的图案。如果步骤S40的判断结果为“否”，则跳转到步骤S90，软化装置200被关机。如果步骤S40的判断结果为“是”，则跳转到步骤S50。
在步骤S50，判断所测量的温度值与预设的工作温度之差的绝对值是否达到第一限值。如果步骤S50的判断结果为“是”，则跳转到步骤S60。如果步骤S50的判断结果为“否”，则跳转到步骤S70。在步骤S70，判断所测量的温度值与预设的工作温度之差的绝对值是否达到第二限值。如果步骤S70的判断结果为“是”，则跳转到步骤S80。如果步骤S70的判断结果为“否”，则跳转到步骤S20，继续进行循环。
步骤S60与步骤S80涉及对软化装置200中输送的热空气进行调温。例如，根据一个实施例，上述第一限值和第二限值均为正数，且第一限值小于第二限值；此外，在步骤S60可以设置成，热源220的气泵装置以小功率运行，从而所输送的热空气流速减慢，从而电加热元件的外绝缘皮被加热软化的速度也相应减慢；而在步骤S80可以设置成，热源220的气泵装置以大功率运行，从而所输送的热空气流速加快，从而电加热元件的外绝缘皮被加热软化的速度也相应加快。附 加地或替代性地，在上述实施例中，分别在步骤S60和S80中可以分别调控热源220的电加热装置的功率，以此来调控所输送的热空气的温度，从而相应调控电加热元件的外绝缘皮被加热软化的速度。上述第一限值和第二限值的设置目的在于，当热空气的温度离预设的工作温度较大时，使得热空气的温度迅速升高；当热空气的温度已经接近预设的工作温度时，使得热空气的温度缓慢升高，从而避免积聚升温的热空气会对电加热元件的外绝缘皮造成任何损害。本领域技术人员应当清楚，在另一替代实施例中，上述第一限值也可以设置成大于第二限值，这样，上述步骤S60和S80中的操作也相应可以被颠倒。
采用本申请上述提到的技术手段，可以获得这样一种电加热元件，其包括电加热丝以及附着在电加热丝上的外绝缘层，所述电加热元件具有适于通过缝纫被固定在垫上的弯曲部，所述电加热元件在室温下如果不破坏所述外绝缘层或所述电加热丝就无法被拉直。弯曲部的弯曲半径不超过6mm，优选是在1与6mm之间，特别优选是在4与6mm之间。所述电加热元件具有小于或等于1.5mm的外径。外绝缘涂层的厚度为0.001至0.2mm，优选0.1至0.2mm。所述外绝缘涂层由聚合物材料、优选PA12或PES制成。
本领域技术人员应当清楚，采用本申请上述提到的技术手段，可以获得这样一种电加热装置、特别是加热垫、尤其车用加热垫，所述电加热装置具有基材以及在所述基材上固定的电加热元件，所述电加热元件具有电加热丝以及附着在电加热丝上的外绝缘层，所述电加热元件被成形为具有弯曲部，所述电加热元件在室温下如果不破坏所述外绝缘层或所述电加热丝就无法被拉直。在本申请的上下文中，电加热元件的弯曲部在所述基材上固定可以利用缝纫的方式来实现，其中缝纫指的是缝纫头利用缝线在基材上的缝纫而将电加热元件的弯曲部绷在基材上。缝线的针距不超过2mm。在本申请的其它可选实施例中，电加热元件也可以采用其它合适的方式例如粘接的方式被固定在基材上。尽管这里详细描述了本申请的特定实施方式，但它们仅仅是为了解释的目的而给出的，而不应认为它们对本申请的范围构成限制。此外，本领域技术人员应当清楚，本说明书所描述的各实施例可以彼此 相互组合使用。在不脱离本申请精神和范围的前提下，各种替换、变更和改造可被构想出来。

Claims (22)

  1. 一种电加热元件(121)，包括电加热丝以及在所述电加热丝上附着的外绝缘层，所述电加热元件具有适于被固定在垫上的弯曲部，所述弯曲部在室温下如果不破坏所述外绝缘层或所述电加热丝就无法被拉直。
  2. 根据权利要求1所述的电加热元件(121)，其特征在于，所述弯曲部的弯曲半径不超过6mm，优选是在1与6mm之间，特别优选是在4与6mm之间。
  3. 根据权利要求1或2所述的电加热元件(121)，其特征在于，所述电加热元件的外径小于1.5mm；和/或，所述外绝缘层的厚度是在0.01与0.2mm之间，优选是在0.1与0.2mm之间。
  4. 根据权利要求1至3任一所述的电加热元件(121)，其特征在于，所述外绝缘层由聚合材料、优选PA12或PES制成。
  5. 根据权利要求1至4任一所述的电加热元件(121)，其特征在于，所述电加热元件具有不超过150摄氏度的工作温度，并且所述弯曲部在工作温度下如果不破坏所述外绝缘层或所述电加热丝就无法被拉直。
  6. 一种电加热装置，特别是加热垫、尤其车用加热垫，所述电加热装置具有基材以及在所述基材上固定的根据权利要求1至5任一所述的电加热元件(121)。
  7. 根据权利要求6所述的电加热装置，其特征在于，所述电加热元件(121)的弯曲部利用缝线通过缝纫的方式被固定在所述基材上。
  8. 根据权利要求7所述的电加热装置，其特征在于，用于所述电加热元件的弯曲部固定的缝线的针距不超过2mm。
  9. 一种软化装置(200)，用于使得待固定到垫、特别是汽车坐垫或靠垫上的细长电加热元件(121)的外绝缘皮软化，所述软化装置(200)包括：
    本体(210)，所述本体设有供气通道以及供料通道(211)，所述本体还设有开口容腔(213)，热空气能够被供应通过所述供气通道，所述细长电加热元件(121)能够被供应通过所述供料通道(211)，所述供气通道与所述供料通道(211)彼此隔离并且均通到所述开口容腔(213)中，所述电加热元件(121)经过所述供料通道(211)和所述开口容腔(213)后从所述本体(210)排出，所述电加热元件(121)能够由热空气被加热至一适于使得电加热元件(121)能够以形成弯曲部的方式被固定到垫的基材上的加热软化温度，从而所述弯曲部在室温如果不破坏外绝缘皮或电加热元件的电加热丝就无法被拉直。
  10. 根据权利要求9所述的软化装置(200)，其特征在于，所述弯曲部的弯曲半径不超过6mm，优选是在1与6mm之间，特别优选是在4与6mm之间。
  11. 根据权利要求10所述的软化装置(200)，其特征在于，所述供气通道与所述供料通道(211)在所述本体(210)内被限定。
  12. 根据权利要求10或11所述的软化装置(200)，其特征在于，所述供气通道包括位于上游的第一供气通道区段(212a)和位于下游的第二供气通道区段(212b)，并且所述第二供气通道区段(212b)与所述供料通道(211)大致平行。
  13. 根据权利要求10至12任一所述的软化装置(200)，其特征在于，所述软化装置包括连接管，用于使得从所述本体(210)排出的 电加热元件(121)保温。
  14. 根据权利要求9至13任一所述的软化装置(200)，其特征在于，所述软化装置还包括在所述本体(210)上能够拆卸地安装的出口连接件，所述出口连接件设有供所述电加热元件(121)穿过的通腔(231)，所述连接管与所述通腔(231)气密性连接。
  15. 根据权利要求14所述的软化装置(200)，其特征在于，所述连接管为波纹管(250)，一段螺旋弹簧(251)在所述波纹管(250)内靠近所述通腔(231)固定，所述电加热元件(121)穿过所述螺旋弹簧(251)的中空内部。
  16. 根据权利要求15所述的软化装置(200)，其特征在于，所述螺旋弹簧(251)以过盈配合的方式在所述波纹管(250)中被固定。
  17. 根据权利要求14所述的软化装置(200)，其特征在于，在所述出口连接件被安装就位后，所述通腔(231)与所述开口容腔(213)气密性连通，并且所述通腔(231)设有沿着远离所述开口容腔(213)的方向收缩的内周面。
  18. 根据权利要求9至17任一所述的软化装置(200)，其特征在于，所述软化装置包括热源(220)，其产生能够被供应通过所述供气通道的热空气。
  19. 根据权利要求9至18任一所述的软化装置(200)，其特征在于，所述软化装置包括用于检测热空气的温度的温度传感器。
  20. 一种将具有外绝缘皮的细长电加热元件(121)缝纫到垫、特别是汽车坐垫或靠垫上的缝纫设备(100)，所述缝纫设备(100)包括：
    机架(110)；
    相对于所述机架固定的供料装置(120)；
    相对于所述机架能够移动的缝纫头(130)；以及
    在所述机架上安装的根据权利要求9至19任一所述的软化装置(200)，其中，具有外绝缘皮的细长电加热元件(121)自所述供料装置(120)被供入所述软化装置(200)，并且经过所述软化装置(200)软化后由所述缝纫头(130)接收。
  21. 一种用于控制根据权利要求9至19任一所述的软化装置(200)的方法，包括：
    测量在所述软化装置(200)中流动的空气温度；以及
    基于测量结果，调节空气的流速和/或使得空气温度升降。
  22. 根据权利要求21所述的方法，其特征在于，在温度测量值接近一规定值时，降低空气的流速和/或使得空气降温。
PCT/CN2019/073930 2018-01-31 2019-01-30 电加热元件、及其软化装置及控制方法 WO2019149222A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020207024713A KR20200116131A (ko) 2018-01-31 2019-01-30 전기 가열 요소, 연화 디바이스 및 제어 방법
US16/965,698 US20210040662A1 (en) 2018-01-31 2019-01-30 Electrical heating element, and softening device therefor and control method
KR1020237005122A KR20230026542A (ko) 2018-01-31 2019-01-30 전기 가열 요소, 연화 디바이스 및 제어 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810095694.X 2018-01-31
CN201810095694.XA CN110099465B (zh) 2018-01-31 2018-01-31 电加热元件、及其软化装置及控制方法

Publications (1)

Publication Number Publication Date
WO2019149222A1 true WO2019149222A1 (zh) 2019-08-08

Family

ID=67442841

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/073930 WO2019149222A1 (zh) 2018-01-31 2019-01-30 电加热元件、及其软化装置及控制方法

Country Status (4)

Country Link
US (1) US20210040662A1 (zh)
KR (2) KR20200116131A (zh)
CN (1) CN110099465B (zh)
WO (1) WO2019149222A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159840A (zh) * 1994-09-15 1997-09-17 泰斯工程与销售股份有限公司 电子传动的缝纫机
CN201613642U (zh) * 2010-02-04 2010-10-27 蒋仁健 一种塑料直丝弯曲装置
CN204999393U (zh) * 2015-09-07 2016-01-27 青岛三元集团股份有限公司 一种电线软化装置
CN206344449U (zh) * 2016-09-13 2017-07-21 东莞市旺成自动化科技有限公司 一种蜂窝板弯框用的加热软化装置
CN208158920U (zh) * 2018-01-31 2018-11-27 捷温有限责任公司 电加热元件、电加热装置、软化装置及缝纫设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100436657B1 (ko) * 2001-12-17 2004-06-22 미래산업 주식회사 반도체 소자 테스트 핸들러의 소자 가열 및 냉각장치
CN106853471A (zh) * 2015-12-09 2017-06-16 重庆兆辉汽车配件制造有限公司 一种热弯设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159840A (zh) * 1994-09-15 1997-09-17 泰斯工程与销售股份有限公司 电子传动的缝纫机
CN201613642U (zh) * 2010-02-04 2010-10-27 蒋仁健 一种塑料直丝弯曲装置
CN204999393U (zh) * 2015-09-07 2016-01-27 青岛三元集团股份有限公司 一种电线软化装置
CN206344449U (zh) * 2016-09-13 2017-07-21 东莞市旺成自动化科技有限公司 一种蜂窝板弯框用的加热软化装置
CN208158920U (zh) * 2018-01-31 2018-11-27 捷温有限责任公司 电加热元件、电加热装置、软化装置及缝纫设备

Also Published As

Publication number Publication date
CN110099465A (zh) 2019-08-06
KR20200116131A (ko) 2020-10-08
US20210040662A1 (en) 2021-02-11
CN110099465B (zh) 2022-03-08
KR20230026542A (ko) 2023-02-24

Similar Documents

Publication Publication Date Title
US9446555B2 (en) Hot wedge welding machine and method of operation
JP3839401B2 (ja) 半導体素子テストハンドラの素子加熱及び冷却装置
CN105946500B (zh) 用于机动车辆的空调系统
US20050178755A1 (en) Air-conditioning method and device for vehicle seats and components
CN208158920U (zh) 电加热元件、电加热装置、软化装置及缝纫设备
WO2019149222A1 (zh) 电加热元件、及其软化装置及控制方法
CA1280308C (en) Air heater for a calender roll diameter controller
ES2290568T3 (es) Instalacion para la fabricacion de cables.
US10588419B2 (en) Bedding climate control apparatus and method to operate thereof that incudes a retention unit to retain in position both a flexible air conduit and bedding
JP2015144078A (ja) 大気圧プラズマ発生装置
JP4701881B2 (ja) ゴムロールの製造装置、およびゴムロールの製造方法。
JP2018119711A (ja) 熱風ヒーター
US4557205A (en) Fur sewing machine with heated air blower
KR101580248B1 (ko) 저소음 저동력 헤어 드라이어
WO2020054619A1 (ja) はんだ付け装置
KR101206439B1 (ko) 섬유시트 열공압 재단장치
KR101610730B1 (ko) 시트 히터 장치
JP6831502B2 (ja) 熱風ヒーター
JP2011143038A (ja) パッカリング防止装置
KR200369935Y1 (ko) 모발 처리를 위한 로트
JP7295474B1 (ja) 暖房装置
CN220507267U (zh) 一种热风枪
CN221315170U (zh) 热风式薄膜烫封机的热风装置
CN213540754U (zh) 一种全密封水冷热风风机
JP2008546982A (ja) ガスの供給方法および装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19747435

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20207024713

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 19747435

Country of ref document: EP

Kind code of ref document: A1