CN213370962U - Intelligence cooling seat - Google Patents
Intelligence cooling seat Download PDFInfo
- Publication number
- CN213370962U CN213370962U CN202021221680.7U CN202021221680U CN213370962U CN 213370962 U CN213370962 U CN 213370962U CN 202021221680 U CN202021221680 U CN 202021221680U CN 213370962 U CN213370962 U CN 213370962U
- Authority
- CN
- China
- Prior art keywords
- cooling
- liquid
- liquid pump
- seat
- switch
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 95
- 238000010992 reflux Methods 0.000 claims abstract description 28
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 239000000110 cooling liquid Substances 0.000 claims abstract description 5
- 230000017525 heat dissipation Effects 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract 2
- 238000009434 installation Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000028016 temperature homeostasis Effects 0.000 description 1
Images
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model discloses an intelligent cooling seat, which relates to the technical field of seat cooling and comprises a seat plate, armrests and a backrest, wherein a liquid storage tank is arranged at the lower side of the seat plate, the liquid storage tank is communicated with a liquid pump for pumping cooling liquid in the liquid storage tank through a pipeline, reflux cooling pipes are arranged on the backrest and the seat plate, and the liquid storage tank, the liquid pump and the reflux cooling pipes form a cooling loop; the drawing liquid pump electricity is connected in control circuit, control circuit includes the DC power supply for the drawing liquid pump power supply, it has the on-off control subassembly that is used for controlling drawing liquid pump drawing liquid speed to establish ties in the direct current main circuit at drawing liquid pump place, DC power supply's anodal and the anodal electricity of drawing liquid pump are connected, the on-off control subassembly is established ties between the negative pole of drawing liquid pump and DC power supply's negative pole, the on-off control subassembly is located the handrail, control circuit still is including being used for the radiating heat abstractor of liquid reserve tank, heat abstractor and drawing liquid pump are parallelly connected. The utility model has the advantages of good cooling effect, intelligent regulation and convenient operation.
Description
Technical Field
The utility model belongs to the technical field of the seat cooling technique and specifically relates to an intelligence cooling seat is related to.
Background
In hot summer, people easily sweat when sitting on the seat for a long time in office work, study or leisure time, the seat plate is also very hot, bacteria are easily bred on the seat plate, and the comfort is very poor at the moment
The current chinese patent that publication number is CN202341409U discloses a two-sided cooling seat, including back of the chair, chair panels, chair leg and curb plate, the curb plate is fixed in the both sides of the back of the chair, and the chair leg is fixed below the curb plate, its characterized in that: the lower part of the chair back is provided with a strip-shaped groove which can be inserted into the edge of the chair panel, the center positions of the left side and the right side of the chair panel are provided with rotating shafts, and the inner sides of the side plates are provided with strip-shaped rotating shaft grooves corresponding to the rotating shafts of the chair panel.
In the above scheme, when the temperature of the seat is high, the seat surface needs to be changed, a user slightly lifts the seat panel upwards, pulls the seat panel forwards, turns over for 180 degrees and then pushes backwards, so that the thin edge behind the seat panel is inserted into the groove again, the rotating shaft falls into the sinking pit at the rear end of the rotating shaft groove, and the temperature reduction treatment of the seat surface is realized.
However, when the temperature of the seat is higher, the seat is cooled by turning over, the operation is complex, the cooling effect is poor, the lasting cooling effect cannot be kept, and the improvement part is existed.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model aims to provide an intelligence cooling seat imbeds the reflux cooling pipe in bedplate and back through the coolant liquid suction pump in with the liquid reserve tank to use heat abstractor to dispel the heat to the liquid reserve tank, realize the cooling of seat, help realizing the lasting cooling of seat, improved the cooling performance of seat greatly.
The above technical purpose of the present invention can be achieved by the following technical solutions: an intelligent cooling seat comprises a seat plate, armrests and a backrest, wherein a liquid storage tank is arranged on the lower side of the seat plate, the liquid storage tank is communicated with a liquid pump for pumping cooling liquid in the liquid storage tank through a pipeline, backflow cooling pipes are arranged on the backrest and the seat plate, one end of each backflow cooling pipe is communicated with the liquid storage tank through a pipeline, the other end of each backflow cooling pipe is communicated with the liquid pump through a pipeline, and the liquid storage tank, the liquid pump and the backflow cooling pipes form a cooling loop; the liquid pump is electrically connected to a control circuit, the control circuit comprises a direct current power supply for supplying power to the liquid pump, a switch control assembly for controlling the liquid pumping speed of the liquid pump is connected in series in a direct current main circuit where the liquid pump is located, the positive pole of the direct current power supply is electrically connected with the positive pole of the liquid pump, the switch control assembly is connected in series between the negative pole of the liquid pump and the negative pole of the direct current power supply, the switch control assembly is located on the handrail, the control circuit further comprises a heat dissipation device for dissipating heat of the liquid storage box, and the heat dissipation device is connected in parallel with the liquid pump.
Through adopting above-mentioned technical scheme, by the coolant liquid suction backflow cooling tube of drawing liquid pump in with the liquid reserve tank to use heat abstractor to dispel the heat to the liquid reserve tank, realize the cooling of seat, help realizing the lasting cooling of seat, improved the cooling performance of seat greatly.
The utility model discloses further set up to: the switch control assembly includes a first resistor R1, a second resistor R2, and a third resistor R3, the first resistor R1 being connected in parallel with a first switch S1, the second resistor R2 being connected in parallel with a second switch S2, and the third resistor R3 being connected in parallel with a third switch S3.
By adopting the above technical solution, when the user closes the first switch S1, the first resistor R1 is short-circuited; when the user closes the second switch S2, the second resistor R2 is shorted; when the user closes the third switch S3, the third resistor R3 is shorted; when any one resistor is in short circuit, the total resistance in the control circuit is reduced, the current in the control circuit is increased, the rotating speed of the liquid pump is increased, the stepped grading cooling of the seat is realized, and convenience is brought to a user to adjust the cooling of the seat.
The utility model discloses further set up to: the switch control assembly comprises a slide rheostat RP, the slide rheostat RP comprises a wiring end and a sliding sheet end, the wiring end of the slide rheostat RP is a first wiring end a and a second wiring end b respectively, the first wiring end a is connected with the control circuit in series, the second wiring end b is grounded, a slide switch is further arranged on the armrest, and the slide switch is fixedly connected with the sliding sheet end of the slide rheostat RP.
Through adopting above-mentioned technical scheme, carry out continuous type thermoregulation to the seat by slide rheostat RP, help the person of facilitating the use to select suitable temperature according to the environment and carry out the fine setting operation to the seat cooling.
The utility model discloses further set up to: the heat dissipation device is a heat dissipation fan.
Through adopting above-mentioned technical scheme, dispel the heat to the liquid reserve tank by radiator fan, help improving the thermal diffusivity of seat.
The utility model discloses further set up to: the seat plate and the backrest are both provided with embedded grooves, and the reflux cooling pipe is embedded into the embedded grooves.
Through adopting above-mentioned technical scheme, with the embedding of reflux cooling tube in the embedded groove, avoided human direct and reflux cooling tube to contact, help improving the security of intelligence control by temperature change seat.
The utility model discloses further set up to: and the reflux cooling pipe is provided with radiating fins.
Through adopting above-mentioned technical scheme, be provided with radiating fin on the reflux cooling tube, increased the area of contact of reflux cooling tube with the cooling liquid in the liquid reserve tank, help improving reflux cooling tube's cooling effect.
The utility model discloses further set up to: the storage box is arranged on the lower side of the seat plate, the liquid storage box, the liquid pump and the cooling fan are all arranged in the storage box, and air holes are formed in the storage box.
Through adopting above-mentioned technical scheme, with the liquid reserve tank with radiator fan helps realizing the clean and tidy nature of intelligence cooling seat in the storage box of bedplate downside.
The utility model discloses further set up to: and a filter screen is arranged on the air holes.
Through adopting above-mentioned technical scheme, through set up the filter screen on the bleeder vent, help reducing the condition emergence that the dust got into in the storage box.
The utility model discloses further set up to: the periphery of the storage box is wrapped with sound-absorbing cotton.
Through adopting above-mentioned technical scheme, inhale the sound cotton through the parcel in storage box week side, help reducing the noise that produces radiator fan and drawing liquid pump during operation, help promoting the travelling comfort of user in the use.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the liquid pump is used for pumping the cooling liquid in the liquid storage tank into the reflux cooling pipe, and the heat dissipation device is used for dissipating heat of the liquid storage tank, so that the temperature of the seat is reduced, the seat is cooled for a long time, and the temperature reduction performance of the seat is greatly improved;
(2) the cooling gear of the intelligent cooling seat is adjusted through the switch control assembly, so that the intelligent cooling seat is greatly convenient for a user to adjust, and the convenience in use of the intelligent cooling seat is improved;
(3) the liquid storage tank is cooled through the cooling fan, and the cooling fins are arranged on the backflow cooling pipe, so that the cooling performance of the intelligent cooling seat is greatly improved.
Drawings
Fig. 1 is an axial view of the overall structure of the intelligent cooling seat according to the first embodiment;
fig. 2 is a schematic cross-sectional view of an overall structure of an intelligent cooling seat according to an embodiment;
FIG. 3 is an enlarged view of a portion A of FIG. 2, which mainly shows the structure of the reflux cooling tube;
FIG. 4 is a schematic cross-sectional view of the storage box according to the present embodiment;
FIG. 5 is a schematic diagram of an embodiment of a main DC circuit and a control circuit;
FIG. 6 is a schematic diagram of a DC main circuit and a control circuit according to a second embodiment;
fig. 7 is an axial view of the entire structure of the intelligent cooling seat according to the second embodiment.
Reference numerals: 1. a seat plate; 11. a liquid storage tank; 12. a liquid pump; 13. a storage box; 131. air holes are formed; 132. a filter screen; 14. sound-absorbing cotton; 2. a handrail; 3. a backrest; 4. a reflux cooling tube; 41. a heat dissipating fin; 5. a control circuit; 51. a DC main circuit; 511. a heat sink; 52. a switch control assembly; 53. and (6) a slide switch.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
The first embodiment is as follows:
referring to fig. 1 and 2, an intelligent cooling seat comprises a seat board 1, armrests 2 and a backrest 3. One side of the seat plate 1 close to the ground is provided with a liquid storage tank 11, and the liquid storage tank 11 is communicated with a liquid pump 12 through a pipeline. One side of the seat plate 1 close to the ground is fixed with a storage box 13, and the storage box 11 and the liquid pump 12 are both fixedly arranged in the storage box 13. Both side walls of the storage box 13 in the horizontal direction are provided with air holes 131, and the air holes 131 are circular holes. A filter screen 132 is fixed on the air holes 131. The outer side wall of the storage box 13 is wrapped with sound-absorbing cotton 14, and the sound-absorbing cotton 14 can be replaced by sponge mats, sound-insulating cloth and the like.
Referring to fig. 2 and 3, the backrest 3 and the seat plate 1 are fixedly provided with the reflux cooling pipes 4, each reflux cooling pipe 4 comprises straight pipes arranged in parallel at intervals, two adjacent straight pipes form a group, an elbow is communicated between any one group of straight pipes, and the elbows between the two adjacent groups of straight pipes are arranged in a staggered manner. The embedded grooves are formed in the seat plate 1 and the backrest 3, the embedded grooves are matched with the reflux cooling tubes 4, and the reflux cooling tubes 4 are embedded into the embedded grooves. The return cooling pipe 4 is fixed with a heat radiation fin 41. The heat dissipation fins 41 are strip-shaped, and one side of the heat dissipation fins 41 away from the cooling return pipe 4 is wider than one side of the heat dissipation fins 41 close to the cooling return pipe 4. The plurality of the heat dissipating fins 41 are provided, and the heat dissipating fins 41 are wound around the reflux cooling tube 4 at regular intervals. One end of the reflux cooling pipe 4 is communicated with the liquid storage tank 11 through a pipeline, and the other end of the reflux cooling pipe 4 is communicated with the liquid pump 12 through a pipeline.
During installation, workers firstly open embedded grooves on the seat plate 1 and the backrest 3 and embed the reflux cooling tubes 4 fixed with the radiating fins 41 into the embedded grooves; then, the staff puts the liquid storage tank 11 and the liquid pump 12 in the storage tank 13; finally, the worker communicates one end of the reflux cooling pipe 4 with the liquid storage tank 11 through a pipeline, and communicates the other end of the reflux cooling pipe 4 with the liquid pump 12 through a pipeline, so that the installation operation of the reflux cooling pipe 4 is completed.
Referring to fig. 4 and 5, the aspiration pump 12 is electrically connected to the control circuit 5, and the control circuit 5 includes a dc power supply for powering the aspiration pump 12. A switch control module 52 is connected in series to a dc main circuit 51 in which the liquid pump 12 is located, the positive electrode of the dc power supply is electrically connected to the positive electrode of the liquid pump 12, and the switch control module 52 is connected in series between the negative electrode of the liquid pump 12 and the negative electrode of the dc power supply. The switch control assembly 52 is located on the side of the handrail 2 away from the ground, and the control circuit 5 further comprises a heat sink 511, and the terminal of the heat sink 511 is connected in parallel with the terminal of the liquid pump 12. The heat sink 511 may be a heat dissipation fan, a cooling fan, or the like.
The switch control assembly 52 includes a first resistor R1, a second resistor R2, and a third resistor R3, the switch control assembly 52 includes a first resistor R1, a second resistor R2, and a third resistor R3, and the resistance values of the first resistor R1, the second resistor R2, and the third resistor R3 decrease in sequence. A first resistor R1 is connected in parallel with the first switch S1, a second resistor R2 is connected in parallel with the second switch S2, and a third resistor R3 is connected in parallel with the third switch S3. The first switch S1, the second switch S2, and the third switch S3 are all self-locking switches.
In use, when the user presses the first switch S1, the first resistor R is shorted; when the user presses the second switch S2, the second resistor R2 is short-circuited; when the user presses the third switch S3, the third resistor R3 is short-circuited; when any one resistor is in short circuit, the total resistance in the control circuit 5 is reduced, the current in the control circuit 5 is increased, the liquid pumping speed of the liquid pumping pump 12 is increased, and the stepped grading cooling of the seat is realized; when the first switch S1, the second switch S2, and the third switch S3 are all in the normally open state, the resistance in the control circuit 5 is large, the current in the control circuit 5 is small, and the liquid pump 12 and the heat dissipation device 511 do not work; when the first switch S, the second switch S, and the third switch S are all in the closed state, the current in the control circuit 5 is large, the liquid pump 12 and the heat dissipation device 511 are both in the maximum power working state, and the control circuit 5 is not burned.
The implementation principle of the above embodiment is as follows: during installation, a worker places the reflux cooling pipe 4 into the embedded grooves on the seat plate 1 and the backrest 3, and communicates the reflux cooling pipe 4 with the liquid storage tank 11 and the liquid pump 12 to form a reflux cooling loop; in use, when a user closes the first switch S1, the first resistor R1 is shorted; when the user closes the second switch S2, the second resistor R2 is shorted; when the user closes the third switch S3, the third resistor R3 is shorted; when any one resistor is short-circuited, the total resistance in the control circuit 5 is reduced, the current in the control circuit 5 is increased, the rotating speed of the liquid pump 12 is increased, and the stepped grading temperature reduction of the seat is realized.
Example two:
referring to fig. 6 and 7, an intelligent cooling seat differs from the first embodiment in that: the switch control assembly 52 includes a sliding rheostat RP. The slide rheostat RP comprises a terminal and a slide sheet terminal p, the terminal of the slide rheostat RP comprises a first terminal a and a second terminal b, the first terminal a is connected with the output end of the control circuit 5 in series, and the second terminal b is grounded. A sliding groove is formed in one side, far away from the ground, of the armrest 2, the length direction of the sliding groove is parallel to the width direction of the seat board 1, a sliding switch 53 is arranged in the sliding groove in a sliding mode, and a sliding piece end p of the sliding rheostat RP is fixed with the sliding switch 53. When the sliding switch 53 slides away from the backrest 3 along the length direction of the sliding groove, the resistance is gradually increased; when the sliding switch 53 slides along the length direction of the sliding groove close to the backrest 3, the resistance is gradually reduced; when the resistance value of the slide rheostat RP is maximum, the liquid pump 12 and the heat dissipation device 511 do not work; when the resistance value of the dynamic resistor RP is minimum, the liquid pump and the heat sink 511 are both in the maximum power operating state.
The implementation principle of the above embodiment is as follows: in use, the user adjusts the slide switch 53, since the slide switch 53 is fixed to the slide end p of the slide rheostat RP. When the sliding switch 53 slides along the length direction of the sliding groove away from the backrest 3, the resistance is gradually increased, the current in the control circuit 5 is reduced, the rotating speeds of the liquid pump 12 and the cooling fan are reduced, and the cooling effect of the intelligent cooling seat is reduced; when the slide switch 53 slides close to the backrest 3 along the length direction of the sliding groove, the resistance is gradually reduced, the total resistance in the control circuit 5 is reduced, the current in the control circuit 5 is increased, the rotating speed of the liquid pump 12 and the cooling fan is increased, and the cooling effect of the intelligent cooling seat is improved.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An intelligent cooling seat comprises a seat plate (1), armrests (2) and a backrest (3), wherein a liquid storage tank (11) is arranged on the lower side of the seat plate (1), the liquid storage tank (11) is communicated with a liquid pumping pump (12) used for pumping cooling liquid in the liquid storage tank (11) through a pipeline, the intelligent cooling seat is characterized in that a backflow cooling pipe (4) is arranged on the backrest (3) and the seat plate (1), one end of the backflow cooling pipe (4) is communicated with the liquid storage tank (11) through a pipeline, the other end of the backflow cooling pipe (4) is communicated with the liquid pumping pump (12) through a pipeline, and the liquid storage tank (11), the liquid pumping pump (12) and the backflow cooling pipe (4) form a cooling loop;
the liquid pump (12) is electrically connected to a control circuit (5), the control circuit (5) includes a dc power supply for supplying power to the liquid pump (12), a switch control component (52) for controlling the liquid pumping rate of the liquid pump (12) is connected in series in a dc main circuit (51) where the liquid pump (12) is located, the positive pole of the dc power supply is electrically connected with the positive pole of the liquid pump (12), the switch control component (52) is connected in series between the negative pole of the liquid pump (12) and the negative pole of the dc power supply, the switch control component (52) is located on the armrest (2), the control circuit (5) further includes a heat dissipation device (511) for dissipating heat of the liquid storage tank (11), and the heat dissipation device (511) is connected in parallel with the liquid pump (12).
2. A smart cooling seat according to claim 1, wherein the switch control assembly (52) comprises a first resistor R1, a second resistor R2 and a third resistor R3, the first resistor R1 being connected in parallel with a first switch S1, the second resistor R2 being connected in parallel with a second switch S2, and the third resistor R3 being connected in parallel with a third switch S3.
3. The intelligent cooling seat according to claim 1, wherein the switch control assembly (52) comprises a slide rheostat RP, the slide rheostat RP comprises a terminal and a slide end p, the terminals of the slide rheostat RP are a first terminal a and a second terminal b respectively, the first terminal a is connected in series with the output end of the control circuit (5), the second terminal b is connected to ground, and a slide switch (53) is further disposed on the armrest (2), and the slide switch (53) is fixedly connected with the slide end p of the slide rheostat RP.
4. The intelligent cooling seat according to claim 1, wherein the heat sink (511) is a heat dissipation fan.
5. The intelligent cooling seat according to claim 1, wherein the seat plate (1) and the backrest (3) are provided with embedded grooves, and the reflux cooling pipe (4) is embedded in the embedded grooves.
6. An intelligent cooling seat according to claim 1, wherein the return cooling pipe (4) is provided with heat radiating fins (41).
7. The intelligent cooling seat according to claim 4, wherein a storage box (13) is arranged on the lower side of the seat plate (1), the storage box (11), the liquid pump (12) and the cooling fan are all arranged in the storage box (13), and air holes (131) are formed in the storage box (13).
8. The intelligent cooling seat according to claim 7, wherein a filter screen (132) is arranged on the air holes (131).
9. The intelligent cooling seat according to claim 7, wherein the storage box (13) is wrapped with sound-absorbing cotton (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021221680.7U CN213370962U (en) | 2020-06-28 | 2020-06-28 | Intelligence cooling seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021221680.7U CN213370962U (en) | 2020-06-28 | 2020-06-28 | Intelligence cooling seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213370962U true CN213370962U (en) | 2021-06-08 |
Family
ID=76199589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021221680.7U Expired - Fee Related CN213370962U (en) | 2020-06-28 | 2020-06-28 | Intelligence cooling seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213370962U (en) |
-
2020
- 2020-06-28 CN CN202021221680.7U patent/CN213370962U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1127929C (en) | Temp. controller for bedding | |
| CN213514317U (en) | Equipment with air purification, sterilization and temperature regulation functions | |
| CN213370962U (en) | Intelligence cooling seat | |
| CN109026342A (en) | A kind of power station mute energy-saving cooling system | |
| CN2838413Y (en) | A kind of changes in temperature pad | |
| CN205585697U (en) | Air -conditioning mattress | |
| CN208803899U (en) | A kind of power station mute energy-saving cooling system | |
| CN201002544Y (en) | Chair for air-conditioning automobile | |
| TWI386606B (en) | Carried air-condition system | |
| CN2203078Y (en) | Electrical-fan chair | |
| CN201185780Y (en) | Cold-hot wind massage cushion | |
| CN212219990U (en) | Refrigeration heating automobile cushion | |
| CN114234326A (en) | Indoor thermal environment construction system and method combining IJV with DPV | |
| CN210353946U (en) | Air cushion folding chair with temperature control | |
| KR20010068322A (en) | A chair for cooling and heating | |
| CN221258927U (en) | Soundless graphene bathroom heater | |
| CN212098548U (en) | Heat dissipation air inlet and outlet structure of temperature adjusting seat | |
| CN212500039U (en) | Novel ventilation cushion | |
| CN211493744U (en) | Automobile cushion | |
| CN203987093U (en) | Cool in summer and warm in winter type cushion | |
| CN212815384U (en) | Sofa heated by warm air | |
| CN201641154U (en) | Seat cushion radiator with heat dissipating and massaging functions | |
| CN219460695U (en) | Novel multi-functional ventilation heating waist cushion | |
| CN218247638U (en) | Nursing pad with heating and ventilating functions | |
| CN203182438U (en) | Air-conditioning office chair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210608 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |