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626 results about "Heating pad" patented technology

A heating pad is a pad used for warming of parts of the body in order to manage pain. Localized application of heat causes the blood vessels in that area to dilate, enhancing perfusion to the targeted tissue. Types of heating pads include electrical, chemical and hot water bottles.

Control cabinet with insect expelling function

The utility model discloses a control cabinet with a desinsectization function, and relates to the field of electrical engineering, in particular to the control cabinet with the desinsectization function, which comprises a top cross beam, upright posts, inclined struts and the like. The insect expelling lamp and the sound wave insect expelling device are used in a combined mode, insect invasion is effectively reduced, and internal electrical equipment is protected. The insect repelling lamp attracts and kills insects, and the sound wave insect repeller emits ultrasonic waves or infrasonic waves which interfere with the insects to repel the insects which are not sensitive to light. And secondly, the cooling fan is additionally arranged at the ventilation opening of the control cabinet, air circulation is greatly improved through forced convection, the internal temperature is effectively reduced, and electronic components are prevented from being overheated. And finally, normal operation in a low-temperature environment is ensured by using a heating pad, heat preservation or heat dissipation is adjusted according to the air temperature through the manual adjusting function of a shutter baffle, cold air invasion is avoided, the equipment stability is ensured, and the service life is prolonged.
Owner:CHINA RESOURCES NEW ENERGY BEIPIAO WIND POWER LTD

Modular food warming pad

A modular food warming pad includes a first heating pad and a plurality of second heating pads. The first heating pad includes a first support panel, a controller and a first connector electrically connected to each other. Each second heating pad includes a second supporting panel, a second connector, and a third connector electrically connected to each other. The first heating pad and the second heating pads are arranged in a first direction. The first connector of the first heating pad is electrically connected to the second connector of an adjacent second heating pad; the third connector of one second heating pad is electrically connected to the second connector of its adjacent second heating pad.
Owner:GUANGDONG WILLING TECH CORP

Limb heat preservation box

The utility model provides a limb incubator, and belongs to the technical field of medical instruments. Comprising a box body, a front end cover plate is clamped to the front end of the box body, a rear end cover plate is clamped to the rear end of the box body, an observation cover is fixedly connected to the middle of the box body, a bottom plate is fixedly connected to the bottom of the box body, a bracket is arranged on the top of the bottom plate, and a heating pad is laid on the top of the bracket. The heating pad is arranged, the heating pad conducts contact heating on an affected limb, compared with a radiation heating method of a baking lamp and an ultraviolet lamp, the contact heating can better guarantee the temperature stability, the influence of the room temperature on the affected limb is small, the affected limb is lifted through the bracket, blood circulation is promoted, and postoperative recovery is facilitated; when an affected limb moves on the bracket or collides with the bracket, the bracket can buffer the affected limb, the comfort of a patient is improved, meanwhile, the bracket can deform to drive the height of the bracket to change, the function of adjusting the height of the bracket is achieved, and the comfort of the patient is further improved.
Owner:THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIVERSITY

Integrated personal life support equipment in high altitude environment and cooperative control method thereof

The invention discloses personal life support equipment in a high-altitude environment and a cooperative control method thereof, and relates to the technical field of personal life support equipment, and the equipment comprises a respiration sensor which is arranged on a mask and is used for detecting respiration frequency and phase; the blood oxygen and heart rate sensor is worn on the wrist of the user and used for detecting the blood oxygen saturation degree and the heart rate; the body temperature sensor is attached to the chest of the user and used for detecting the core body temperature; the automatic oxygen supply device is used for providing oxygen; the intelligent heating device comprises partition heating pieces attached to the chest and the four limbs of the user and is used for partition heating; the microcontroller unit is used for formulating an optimal life support strategy according to the sensor data and intelligently and cooperatively controlling the working states of the automatic oxygen supply device and the automatic heating device according to the optimal life support strategy; the sensor data comprises respiratory frequency and phase, oxyhemoglobin saturation, heart rate and core body temperature, and dynamic oxygen supply and body temperature adjustment can be cooperatively controlled.
Owner:XINJIANG UNIVERSITY

Beehive capable of improving survival rate of bees in winter

The beehive capable of improving the survival rate of the bees in winter comprises a beehive body, a first mounting opening penetrating through the beehive body is formed in one side of the beehive body, and a first mounting mechanism and a second mounting mechanism are arranged in the first mounting opening; the side, away from the second mounting mechanism, of the first mounting mechanism makes contact with the inner wall of the beehive body, the interior of the first mounting mechanism is fixedly connected with a temperature control heating pad, the inner wall of the second mounting mechanism is evenly and fixedly connected with a plurality of feeding boxes, and the inner wall of the second mounting mechanism is fixedly connected with a feeding bottom box; when the beehive capable of improving the survival rate of the bees in winter is used, a temperature control heating pad is started to conduct constant-temperature heating on the interior of the beehive body, the activity of the bees and the disease resistance of the bodies are enhanced, and a plurality of feeding boxes and feeding bottom boxes are mounted in the beehive body through a second mounting mechanism; by arranging the feeding box for the bees and adding foodstuff, the bees can be fed in winter, so that the survival rate of the bees in winter can be improved.
Owner:YUNNAN HUAFENG FOOD CO LTD

Novel intelligent pet mattress

The utility model discloses a novel intelligent pet mattress, which relates to the technical field of pet supplies and comprises a base, a water-filled mattress is arranged on the inner side of the base, an equipment frame is fixed at one end of the base, power supply equipment and an integrated shell are respectively arranged on the inner side of the equipment frame, and a water tank and a circulating pump are respectively arranged at the upper end of the inner side of the integrated shell. A metal heat-conducting plate is attached to the bottom end of the water tank, a semiconductor chilling plate and a resistance heating pad are attached to the lower end of the metal heat-conducting plate, and an external temperature sensor, a water temperature sensor and an air temperature sensor are arranged on the side, away from the power supply equipment, of the water tank. According to the novel intelligent pet mattress provided by the utility model, the water in the water tank can be conveniently and automatically heated or cooled according to the current environment temperature through the integral structural matching design, and then the water tank and the circulating pump are matched to conveniently carry out water delivery circulation on the water-filled mattress to form constant temperature, so that the comfort of a pet lying on the water-filled mattress is improved.
Owner:QINGZHAOMIN TECH (WUHAN) CO LTD

Heatable garment, fabrics for such garments, and methods of manufacture

The present invention relates to heating pads, heatable garments, fabrics for making such garments and methods for making such heating pads and garments and fabrics. Also provided is heatable bedding. The heating pad comprises graphene particles dispersed in a polymer matrix material, wherein the graphene particles have an oxygen content of less than 4 at % and a nitrogen content of at least 3 at %. The heatable garment comprises a garment body and a heating pad adhered to at least a portion of the garment body.
Owner:HAYDALE GRAPHENE IND

Electric blanket and electric heating pad controller (102)

ActiveCN309566273SElectric heating padsProcess engineering
1. Name of the product in this design: Electric blanket, electric heating pad controller (102). 2. Application of this design: This design is used to control electric blankets and electric heating pads. 3. The key design features of this product are its shape and the layout of the adjustment buttons and display screen. 4. The picture or photo that best illustrates the design points: three-dimensional picture.
Owner:SHI JIA ZHUANG YA WANG DIAN RE KE JI YOU XIAN GONG SI

Cut stem roller heating device

The utility model discloses a cut stem roller heating device which comprises a heating pad which is an arc-shaped pad surrounding the lower portion of a roller, and a heating cavity is formed in the heating pad. The steam control pipeline can be communicated with the heating cavity inlet of the heating pad; the condensate water recovery control pipeline can be communicated with the heating cavity outlet of the heating pad; the two ends of the condensate water circulation cooling pipeline can be communicated with an inlet and an outlet of the heating cavity of the heating pad respectively; and a first temperature sensor and a mechanical thermometer are arranged in a cavity formed by the heating pad and the roller. The utility model relates to a cut stem roller heating device, which belongs to the technical field of cigarette production equipment, controls the temperature of a heating pad through the cooling function of a condensate water circulation cooling pipeline and the heating function of a steam control pipeline, and realizes the accurate adjustment of the heating temperature of a roller and cut stems in the roller.
Owner:CHINA TOBACCO GUANGXI IND

Flexible heat preservation board with heating wire encapsulated therein

A flexible heat preservation board with heating wire encapsulated therein includes a heating pad, a heating wire and a liquid adhesive. A first side of the heating pad is defined with a groove and arranged with a plurality of projections. The heating pad is provided with a power supplier. Inner surfaces of the groove are provided with a first protrusion and a second protrusion respectively. A bottom surface of the groove, lower surfaces of the first protrusion and the second protrusion define an open accommodating space for receiving the heating wire. A first gap is formed between the first protrusion and the heating wire, a second gap is formed between the second protrusion and the heating wire. The liquid adhesive encapsulates the first protrusion, the second protrusion, and the heating wire in the groove. Both the heating pad and the heating wire are flexible.
Owner:GUANGDONG WILLING TECH CORP

Wind turbine blade integrating an ice protection system and manufacturing method thereof

The invention refers to a wind turbine blade formed by two shell halves, wherein one shell half has a first pair of metallic sheets layered, on the outer surface of the shell half, and wherein each of the metallic sheets has been partially embedded within the shell half during the resin infusion process. A first heating mat made of an electrically conductive material is layered on resin-free parts of the metallic sheets, and is also embedded within the shell half so that the first heating mat is electrically in contact with the resin-free parts of the metallic sheets. The invention also refers to a method for manufacturing a wind turbine blade, integrating an Ice Protection System, the method comprising the steps of manufacturing first and second shell halves by means of a resin infusion process, and integrating an Ice Protection System in the same resin infusion process for manufacturing the shell halves.
Owner:GAMESA INNOVATION & TECH SL

Anti-icing hidden door handle and control system

The utility model discloses an anti-icing hidden door handle and control system, which relates to the technical field of automobile door handles, including a vehicle door body and a hidden seat, wherein a hidden seat is embedded and installed in the middle of the vehicle door body, and a four-door hidden door handle is installed inside the hidden seat, and a driving assembly is installed at one end of the top of the hidden seat, and a locking assembly is installed at one end of the top of the hidden seat away from the driving assembly. The anti-icing hidden door handle and control system, by pasting an internal heating pad on the surface of the protective slot seat and cooperating with an external heating plate embedded on the front and side elevations of the main handle, can prevent the entire four-door hidden door handle from icing between structures in an outdoor environment due to the low temperature, rain and snow in winter, thereby making the entire device structure more convenient to use. At the same time, the use of the locking assembly can avoid the four-door hidden door handle from being in a storage state to the greatest extent, and prevent displacement due to external forces from causing structural damage.
Owner:ANBISHENG AUTOMOTIVE TECH (CHANGSHU) CO LTD

Pet heating pad

1. The name of the design product: pet heating pad. 2. The use of the design product: for use as a pet heating pad, and for use for pets to keep warm. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.
Owner:DONGGUAN WENFENG SILICONE PROD

Seat back plate with heating function

The utility model relates to a seat back plate with a heating function, which comprises a back plate framework, a heating pad and a back plate decoration layer, the back plate framework is fixedly arranged on a backrest framework, the heating pad comprises a graphene heating layer to generate heat and transmit the heat outwards, and the back plate decoration layer is arranged on the back plate framework. And the backboard decoration layer wraps the backboard framework and the heating pad so as to hide the backboard framework and the heating pad. According to the seat back plate with the heating function, as one of automobile parts closest to passengers in the back row, the seat back plate with the heating function has remarkable function design advantages in the aspect of temperature management.
Owner:YANFENG INTERNATIONAL AUTOMOTIVE TECHNOLOGY CO LTD

Auxiliary rehabilitation device for nephrology department patient

The invention belongs to the technical field of medical instruments, and relates to a nephrology department patient auxiliary rehabilitation device which comprises a base plate, a rotating shaft is rotationally arranged on the base plate, and a back cushion is connected to the rotating shaft; the base plate is provided with two sets of hinge rods, each set of hinge rods at least comprises two hinge rods, the first ends of the hinge rods are rotationally arranged on the base plate, and a supporting plate is rotationally arranged between the second ends of the hinge rods in the same set; a containing groove is formed in the upper side of the supporting plate, mounting plates are rotationally arranged on the two sides of the back cushion, and heating cushions located in the containing groove in the supporting plate are mounted on the mounting plates. The back cushion rotates to convert the patient from a lying state to a sitting state, and the sitting angle of the patient can be adjusted; the heating pad can be conveniently close to the kidney of a patient under the action of the rotating back pad and the lifted supporting plate, the patient is assisted in rehabilitation through heating of the heating pad, the lifted supporting plate can drive the hand of the patient to be lifted, and the kidney of the patient is prevented from being blocked.
Owner:RUGAO PEOPLES HOSPITAL

Seat domain control device integrating seat electric control and pneumatic massage control

The utility model relates to a seat domain control device integrating seat electric control and pneumatic massage control. The seat domain control device comprises a storage battery and a seat domain control unit. The storage battery is electrically connected with the power line, and the seat area control unit comprises a power supply driving module, a micro-control unit, a CAN transceiver, a data storage module and an electromagnetic valve; the power supply driving module is electrically connected with the storage battery; the micro-control unit is electrically connected with the CAN transceiver, and the CAN transceiver is connected with a vehicle body through a CAN bus and achieves CAN communication. The micro-control unit is connected with seat keys through a key signal detection circuit, connected with an adjusting motor through a HALL signal detection circuit, connected with the adjusting motor through a motor driving module, connected with a heating pad through a heater driving module and connected with a ventilation fan through a fan driving module and a PWM signal control circuit. The electromagnetic valve driving module is connected with the electromagnetic valve, and is only connected with a power supply and a CAN communication line outside the seat, so that the number of wire harnesses inside and outside the seat is reduced, and components inside the seat are easier to arrange.
Owner:CHANGCHUN FAWSN RES & DEV CO LTD

Graphene flexible heating pad capable of conducting heat through superposition

The utility model belongs to the technical field of graphene flexible heating pads, and particularly relates to a graphene flexible heating pad capable of conducting heat through superposition, which comprises a heating pad main body, the heating pad main body comprises a heating layer, a heat preservation layer is arranged on the lower end face of the heating layer, and a bottom layer is arranged on the lower end face of the heat preservation layer. Rapid heating can be carried out; a gap between the first heating film and the second heating film is filled through the first heat-conducting silica gel sheet, so that heat transfer between the first heating film and the second heating film is realized, the heating speed is increased, and the heating effect is improved; heat of the second heating film is conducted upwards through the second heat conduction silica gel sheet, heating use is facilitated, good heat insulation and heat preservation effects are achieved, heat loss is reduced, the heating effect is further improved, the strength is high, the wear-resisting effect is improved, and protection is achieved from the surface; and the buffer layer is made of heat-resistant sponge, is relatively soft and has good buffer performance, so that the comfort level is improved.
Owner:威海云山智暖科技有限公司

Thoracic surgery position pad

The utility model discloses a thoracic surgery position pad, and belongs to the field of medical instruments. The bra comprises a chest pad, an extension pad and a controller, a plurality of air bags are arranged on the chest pad side by side, the air bags are connected with the controller and can independently adjust the air pressure of each air bag, a plurality of fixing belts are arranged on the two sides of the lower portion of the chest pad, and first heating pad layers are arranged on the upper end faces of the air bags; the extension pad is connected with one end of the chest pad, a second heating pad layer is arranged on the upper end face of the extension pad, the first heating pad layer and the second heating pad layer are both connected with the controller, and the controller can independently control the temperature of the first heating pad layer and the temperature of the second heating pad layer. The body position pad solves the technical problem that a traditional body position pad is not convenient for effectively preserving heat for a patient and reducing acquired pressure injury in an operation.
Owner:LIUZHOU WORKERS HOSPITAL

Food heating mat and production process thereof

Disclosed are a food heating mat and a production process thereof. A silica gel plate provided with a first U-shaped groove is formed by heat press molding and vulcanization, a heating wire is pressed into the first U-shaped groove, a limiting section of the first U-shaped groove is capable of preventing the heating wire from easily detaching therefrom, and then glue is injected for fixing. The food heating mat is structurally simple and features a high yield rate despite of a simple production process.
Owner:RAO GUOCAI

Flexible heat preservation board with heating wire encapsulated therein

A flexible heat preservation board with heating wire encapsulated therein includes a heating pad, a heating wire and a liquid adhesive. A first side of the heating pad is defined with a groove and arranged with a plurality of projections. The heating pad is provided with a power supplier. Inner surfaces of the groove are provided with a first protrusion and a second protrusion respectively. A bottom surface of the groove, lower surfaces of the first protrusion and the second protrusion define an open accommodating space for receiving the heating wire. A first gap is formed between the first protrusion and the heating wire, a second gap is formed between the second protrusion and the heating wire. The liquid adhesive encapsulates the first protrusion, the second protrusion, and the heating wire in the groove. Both the heating pad and the heating wire are flexible.
Owner:GUANGDONG WILLING TECH CORP

Sleeve-based body temperature regulation

A heating system comprises a wearable sleeve, a first heating pad associated with a first portion of the wearable sleeve, a second heating pad associated with a second portion of the wearable sleeve, one or more temperature sensors associated with the wearable sleeve, and control circuitry communicatively coupled to the first heating pad, the second heating pad, and the one or more temperature sensors. The control circuitry is configured to receive one or more temperature signals from the one or more temperature sensors, determine a temperature associated with a patient based on the one or more temperature signals, determine that the temperature is less than a target temperature value, and at least partly in response to said determining that the temperature is less than the target temperature value, activate at least one of the first heating pad or the second heating pad.
Owner:FLOTHERM INC

Fastening clip for a seat cushion, seat cushion and method for mounting a seat cushion

The invention relates to a fastening clip (200) for fastening a seat cover (120) to a foam part (110) of a seat cushion (100). The fastening clip (200) comprises a base part (220) which is designed to be fastened to or in the foam part (110); a pair of elastically deformable fastening arms (210), each having an anchoring hook (212) for positively anchoring an anchorable element fastened to the seat cover (120) by inserting the anchorable element between the pair of fastening arms (210); and a holding element for fixing a heating mat (130) which can be arranged between the foam part (110) and the seat cover (120), wherein the holding element is designed as a spring arm (230) projecting from one of the fastening arms (210) in the direction of the base part (220). The invention also relates to a seat cushion and a method for assembling such a seat cushion (100).
Owner:ADIENT US LLC

Facial wearable device and methods for providing external stimuli using the same

A facial wearable device for providing external stimuli to a user comprises a foldable frame, a flexible layer, an airbag layer, a plurality of heating pads, a plurality of vibrating motors, and a sensor. The flexible layer may couple to a proximal side of the foldable frame and be configured to couple to a facial area of the user. The airbag layer may be disposed between the foldable frame and the flexible layer and comprise a plurality of inflatable bladders configured to provide pressure to the facial area of the user. The plurality of heating pads may couple to the flexible layer and be configured to provide heat to the facial area of the user. The plurality of vibrating motors may couple to the flexible layer and be configured to provide vibration to the facial area of the user. The sensor may couple to the flexible layer and be configured to detect biometric data of the user. At least one of the plurality of inflatable bladders, the plurality of heating pads, and the plurality of vibrating motors may be controlled based on the biometric data.
Owner:THERABODY INC

temperature controller

1. The name of the design product: temperature controller. 2. The use of the design product: for controlling the temperature section and timing automatic power-off of heating pad. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.
Owner:DONGGUAN WANGJIAN ELECTRONIC TECH CO LTD

Container

The invention discloses a container. The container comprises a container body, a container door and a door stop. A heat preservation layer is arranged in the wall body of the box body, a box opening is formed in the first end, and a connecting assembly is arranged on the side portion of the box body. The box door is pivotally connected to the box body so as to open or close the box opening; the door shield is detachably connected to the connecting assembly and located in the box body so as to be used for blocking the liquid bag. Therefore, the heat preservation layer is arranged in the wall body of the box body, the temperature in the box body can be kept as far as possible, and heat loss of the liquid material can be reduced when a liquid bag filled with the liquid material is transported by the container; therefore, when a liquid bag filled with a liquid material is transported in winter, the time required for solidification and crystallization of the liquid material can be prolonged, solidification and crystallization of some liquid materials transported in a short distance are avoided, a heating pad does not need to be laid during short-distance transportation, and the cost is reduced; when a liquid bag filled with a liquid material is transported, the door shield can be connected to the connecting assembly, so that the liquid bag and the box door are separated, and the liquid bag is prevented from extruding the box door.
Owner:CHINA RAILWAY SPECIAL CARGO LOGISTICS CO LTD +2

Heating layer structure

The utility model belongs to the technical field of electric heating, and particularly relates to a heating layer structure, which comprises a base material, an electric heating layer and a heat insulation layer, the electric heating layer is externally connected with a power supply for electrifying and heating, the base material is arranged above the electric heating layer and used for contacting materials to be heated, and the heat insulation layer is arranged below the electric heating layer and used for reducing heat leakage. And the heat insulation layer is arranged at the bottom of the electric heating layer, so that the loss of downward transfer of heat of the electric heating layer is effectively reduced, the heat can be concentrated on the electric heating layer and a substrate area above the electric heating layer, and the use efficiency of overall energy is improved. The heat conduction efficiency is improved, so that the temperature can be quickly increased or decreased in a short time, and the requirement of equipment needing to quickly adjust the temperature is met; therefore, the thickness of the whole structure can be reduced, the light and space-saving requirements are met, and the structure is suitable for the fields of electric appliances, electronic products, heating pads and the like.
Owner:DOSOAI TECHNOLOGY (SHENZHEN) CO LTD

Tent with heat preservation function

The tent with the heat preservation function comprises an outer tent body and an inner tent body, a supporting mechanism is installed between the outer tent body and the inner tent body, and the supporting mechanism is composed of a supporting cross rod, an elastic pressing telescopic support, a first folding connecting piece, a second folding connecting piece, a side supporting rod, a connecting rod and a telescopic rod. The surface of the inner tent is evenly provided with inserting buckles matched with a support of the supporting mechanism, side rain sheds are arranged on the two sides of the outer tent, transparent windows are arranged on the surfaces of the side rain sheds, and the front face and the back face of the outer tent are both provided with sky curtains. Velcro pasting positions, a heating pad, a heat preservation ground pad and a double-layer tent are arranged, when a person conducts heating by connecting the heat preservation ground pad with a mobile power source on the inner side of the inner tent, the overall heat preservation effect in the tent is better, and the overall internal space in the tent can be enlarged and adjusted through matched arrangement of telescopic rods and spring pressing buckles; and through the matching arrangement of the two windows, the four doors and the four skylights, the overall ventilation effect is better.
Owner:TIANJIN HUANQIU RECREATION PROD

Automobile heating pad using FPC (Flexible Printed Circuit) flat cable

The utility model relates to the technical field of heating pads, in particular to an automobile heating pad using a flexible printed circuit (FPC) flat cable. The heating pad comprises a heating pad body, a heating wire and a temperature sensor are arranged in the heating pad body, the heating wire and the temperature sensor are connected with the outside through an FPC (Flexible Printed Circuit) flat cable, the thickness of the FPC flat cable is 0.8-1.2 mm, four circuits are arranged in the FPC flat cable in parallel, and the four circuits are connected with the heating pad body. And one ends of the four circuits are respectively connected with the positive electrode of the heating wire, the negative electrode of the heating wire, the NTC positive electrode and the NTC negative electrode. The device solves the problems that too much manpower and time cost is needed, and the wire harness is too thick.
Owner:ND AUTOMOTIVE SYST CO LTD

Intelligent tracing detection system for resistance of automobile seat heating pad

The invention discloses an intelligent tracing detection system for automobile seat heating pad resistance, and relates to the technical field of automobile seat heating pad quality detection.The system calculates a resistance deviation index REI by collecting bar code information, multi-dimensional resistance parameters and sewing related data of a heating pad and judges performance abnormity according to a tolerance threshold value; and for first-level abnormal start sewing interference monitoring, calculating a sewing interference index SII to judge the interference condition. A resistance drift trend index RDI is further obtained through trend modeling, and dynamic monitoring of the resistance performance trend is achieved in combination with a drift threshold value; all key parameters are structurally bound with a unique identifier TLI to form a complete traceability record, and multi-condition screening and historical data export are realized; the system can accurately identify heating pad resistance performance abnormity and sewing quality problems, improve product detection efficiency and quality traceability, and guarantee safe and reliable operation of the automobile seat heating pad.
Owner:SHIJIAZHUANG YUANSEN AUTOMOTIVE INTERIOR PARTS CO LTD