A seat heating module and a car seat

Abstract

The application provides a seat heating module and an automobile seat, and relates to the technical field of automobile seats, which comprises a first base material layer, a heating layer, a heating conductor layer, an upper pressure sensor circuit layer, a spacing layer, a lower pressure sensor circuit layer and a second base material layer. The heating conductor layer and the heating layer are fixed to the upper surface of the first base material layer, the heating layer covers the outer side of the heating conductor layer, the upper pressure sensor circuit layer is fixed to the lower surface of the first base material layer, and the lower pressure sensor circuit layer is fixed to the upper surface of the second base material layer. Since the heating layer and the heating conductor layer are arranged on the upper surface of the first base material layer, the upper pressure sensor circuit layer does not interfere with the heating layer, so that the heating layer and the heating conductor layer can be arranged into the required shape according to the requirement, and the heating layer can be continuously and uniformly distributed on the first base material layer.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seats, and in particular to a seat heating module and an automobile seat. Background Art

[0002] The car seat heating module is installed inside the seat and heats the seat through components such as electric heating wires. The car seat pressure detection module is installed inside the seat and uses a pressure sensor to sense whether a passenger is seated. It then outputs an on / off signal to an alarm, reminding the passenger to fasten their seat belt. Currently, the car seat heating module and the car seat pressure detection module are installed independently in the car seat, resulting in a low level of integration between the heating module and the pressure detection module. This, in turn, makes layout design difficult due to limited installation space. This also increases the number of installation steps during car seat production, reducing installation efficiency and increasing installation costs.

[0003] To address the aforementioned technical issues, a related art provides a seat heating film that integrates a heating module and a pressure detection module. The film comprises an upper substrate layer and a lower substrate layer. The upper substrate layer is provided with a flexible heating material area and a pressure-sensitive material area. The lower substrate layer is printed with patterned electrode layers that conduct electricity upon contact with the flexible heating material area and the pressure-sensitive material area, respectively.

[0004] However, the aforementioned seat heating film has the following drawbacks: Since the flexible heating material area and the pressure-sensitive material area are arranged on the upper substrate layer, while the patterned electrode layer is arranged on the lower substrate layer, the flexible heating material area and the pressure-sensitive material area must be spaced apart to ensure that both areas can contact the patterned electrode layer. Otherwise, interference will occur between the flexible heating material area and the pressure-sensitive material area, affecting contact with the patterned electrode layer. This results in a discontinuous distribution of the flexible heating material area on the upper substrate layer, leading to uneven heat distribution when heating the seat, which affects the passenger experience. Furthermore, since the flexible heating material area is arranged on the upper substrate layer and the patterned electrode layer is arranged on the lower substrate layer, the flexible heating material area can only electrically connect to the patterned electrode layer when the seat is under pressure. This can easily lead to poor contact between the flexible heating material area and the patterned electrode layer, thus affecting the heating effect. Summary of the Invention

[0005] The purpose of this application is to provide a seat heating module and a car seat, which are used to solve the problems of uneven heating heat distribution and unsatisfactory heating effect existing in the seat heating film in the related art.

[0006] In the first aspect, the present application provides a seat heating module adopting the following technical solutions:

[0007] A seat heating module includes a first substrate layer, a heating layer, a heating wire layer, an upper circuit layer of a pressure sensor, a spacer layer, a lower circuit layer of a pressure sensor, and a second substrate layer. The heating wire layer and the heating layer are fixedly arranged on the upper surface of the first substrate layer, the heating layer covers the outside of the heating wire layer, the upper circuit layer of the pressure sensor is fixedly arranged on the lower surface of the first substrate layer, and the lower circuit layer of the pressure sensor is fixedly arranged on the upper surface of the second substrate layer. The two side surfaces of the spacer layer are respectively fixedly connected to the lower surface of the first substrate layer and the upper surface of the second substrate layer. The upper circuit layer of the pressure sensor and the lower circuit layer of the pressure sensor are spaced apart from each other. When the first substrate layer is subjected to pressure, the upper circuit layer of the pressure sensor can contact the lower circuit layer of the pressure sensor.

[0008] By adopting the above technical solution, since the heating layer and the heating wire layer are arranged on the upper surface of the first substrate layer, the circuit layer on the pressure sensor will not interfere with the heating layer. Therefore, the heating layer and the heating wire layer can be arranged into the required shape as needed, so that the heating layer can be continuously and evenly distributed on the first substrate layer, thereby improving the heating uniformity.

[0009] Optionally, the heating layer is a graphene heating layer, and the heating wire layer is a conductive silver paste circuit layer.

[0010] By adopting the above technical solution, the heating layer uses a graphene heating layer to generate heat, and the heat is evenly generated, making the human body feel more comfortable.

[0011] Optionally, the first substrate layer is a polyethylene terephthalate substrate layer or a polyimide substrate layer, and the second substrate layer is a polyethylene terephthalate substrate layer or a polyimide substrate layer.

[0012] By adopting the above technical solution, a polyethylene terephthalate substrate layer or a polyimide substrate layer is used as the material of the first substrate layer and the second substrate layer, so that the first substrate layer and the second substrate layer have good mechanical properties, impact strength, folding resistance, insulation, heat resistance and corrosion resistance.

[0013] Optionally, the spacer layer is a double-sided sandwich tape, and two side surfaces of the spacer layer are fixedly bonded to the lower surface of the first substrate layer and the upper surface of the second substrate layer respectively.

[0014] By adopting the above technical solution, the spacer layer adopts sandwich double-sided tape, which not only facilitates production and assembly but also reduces manufacturing costs.

[0015] Optionally, the circuit layer on the pressure sensor is arranged in a dot matrix, and the spacer layer is provided with through holes whose positions correspond one-to-one to those of the circuit layer on the pressure sensor.

[0016] By adopting the above technical solution, the circuit layer on the pressure sensor adopts a dot matrix arrangement, so that it can be evenly distributed on the seat, improving the pressure detection accuracy, and then the controller can output an on-off signal to the alarm to remind passengers to fasten their seat belts. At the same time, the controller controls the heating wire layer to connect to the power supply and heat the seat through the heating layer.

[0017] Optionally, the spacer layer is provided with an exhaust duct connected to the through hole, and the spacer layer is also provided with an exhaust groove connected to the exhaust duct, and the exhaust groove extends to the outer peripheral side of the spacer layer.

[0018] By adopting the above technical solution, exhaust can be carried out through the exhaust channel and the exhaust groove, ensuring that when the first substrate layer is under pressure, the upper circuit layer of the pressure sensor can contact the lower circuit layer of the pressure sensor.

[0019] Optionally, the upper circuit layer of the pressure sensor includes a first silver wire circuit layer and a first carbon paste layer, the first silver wire circuit layer is fixedly arranged on the lower surface of the first substrate layer, and the first carbon paste layer is fixedly covered on the outside of the first silver wire circuit layer, and the lower circuit layer of the pressure sensor includes a second silver wire circuit layer and a second carbon paste layer, the second silver wire circuit layer is fixedly arranged on the upper surface of the second substrate layer, and the second carbon paste layer is fixedly covered on the outside of the second silver wire circuit layer.

[0020] By adopting the above technical solution, the adhesion between the lower circuit layer of the pressure sensor and the second substrate layer can be improved through the second silver wire circuit layer and the second carbon paste layer, and the conductivity of the lower circuit layer of the pressure sensor can be improved.

[0021] In a second aspect, the present application provides a car seat that adopts the following technical solution:

[0022] A car seat comprises the seat heating module and a seat body, wherein the seat body comprises a frame, a seat cushion core, a cover and a backrest core, the seat cushion core and the backrest core are fixed to the frame, the cover is mounted on the outside of the seat cushion core and the backrest core, and the seat heating module is arranged on the seat cushion core and the backrest core and is located inside the cover.

[0023] By adopting the above technical solution, the seat heating module is arranged on the seat cushion core and the backrest core, thereby achieving a uniform heating effect.

[0024] Optionally, it also includes a first liquid storage bag, a heating element, an airbag, a second liquid storage bag, a first delivery pump and a second delivery pump. The first liquid storage bag, the airbag, the seat heating module and the second liquid storage bag are stacked on the seat cushion core from bottom to top and are located in the seat cover. The heating element is located in the first liquid storage bag. The first delivery pump is respectively connected to the first liquid storage bag and the second liquid storage bag. The second delivery pump is respectively connected to the first liquid storage bag and the second liquid storage bag.

[0025] By adopting the above technical solution, the seat cover can be quickly heated through the heating layer of the seat heating module, so that passengers can quickly feel the temperature of the seat; the heating liquid in the first liquid storage bag can be pumped into the second liquid storage bag through the first delivery pump, so that passengers can get a more uniform heating sensation.

[0026] Optionally, a connecting component is further included, wherein the first liquid storage bag, the airbag, the seat heating module and the second liquid storage bag are fixedly connected, and the first liquid storage bag is detachably connected to the seat cushion core through the connecting component.

[0027] By adopting the above technical solution, the relevant components of the car seat can be quickly assembled or disassembled through the connecting components, thereby improving assembly efficiency and facilitating operations such as replacement or maintenance.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. Because the heating layer and heating conductor layer are arranged on the upper surface of the first substrate layer, while the pressure sensor upper circuit layer is arranged on the lower surface of the first substrate layer, the pressure sensor upper circuit layer does not interfere with the heating layer. Therefore, the heating layer and heating conductor layer can be arranged into the desired shape as needed, thereby continuously and evenly distributing the heating layer on the first substrate layer. This further ensures that the heat generated by the heating layer is evenly distributed, improving the passenger experience. Furthermore, because the heating layer and heating conductor layer are both fixedly arranged on the upper surface of the first substrate layer, heating of the heating layer can be achieved by simply energizing the heating conductor layer, eliminating the possibility of poor contact, thereby effectively improving the heating effect of the heating layer.

[0030] 2. When the first substrate layer is under pressure, that is, when a passenger sits on the seat, the first substrate layer deforms, and the upper circuit layer of the pressure sensor is under pressure and contacts the lower circuit layer of the pressure sensor, so it has a higher pressure sensing sensitivity. At this time, the lower circuit layer of the pressure sensor outputs a signal to the controller, and the controller outputs an on-off signal to the alarm, thereby reminding the passenger to fasten the seat belt. At the same time, the controller controls the heating wire layer to connect to the power heating layer, and heats the seat through the heating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1This is an exploded diagram of the seat heating module of this application;

[0032] Figure 2 A cross-sectional view of the car seat of this application;

[0033] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A;

[0034] Figure 4 for Figure 3 A partial enlarged schematic diagram of part B.

[0035] In the figure,

[0036] 10. Seat heating module; 11. First substrate layer; 12. Heating layer; 13. Heating conductor layer; 14. Pressure sensor upper circuit layer; 15. Spacer layer; 151. Through hole; 152. Exhaust duct; 153. Exhaust slot; 16. Pressure sensor lower circuit layer; 17. Second substrate layer;

[0037] 20. Seat body; 21. Frame; 22. Cushion core; 221. Through slot; 23. Seat cover; 24. Backrest core;

[0038] 30. First liquid storage bag; 31. First cavity; 40. Heating element; 50. Airbag; 60. Second liquid storage bag; 61. Second cavity; 70. First delivery pump; 71. First pipeline; 72. Second pipeline; 80. Second delivery pump; 81. Third pipeline; 82. Fourth pipeline;

[0039] 90. Connecting assembly; 91. Cylinder; 911. Limiting boss; 92. Connecting block; 921. First groove; 922. Second groove; 923. Third groove; 924. Avoiding groove; 925. Horizontal groove; 926. Vertical hole; 93. Column; 931. Sliding groove; 932. Locking groove; 933. Claw; 94. Tripping rod; 941. Cross bar; 942. Limiting rod; 95. Locking pin; 951. Positioning hole; 96. First compression spring; 97. Second compression spring; 98. Tension spring. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0041] An embodiment of the present application discloses a seat heating module.

[0042] Example 1

[0043] Reference Figure 1A seat heating module includes a first substrate layer 11, a heating layer 12, a heating wire layer 13, a pressure sensor upper circuit layer 14, a spacer layer 15, a pressure sensor lower circuit layer 16 and a second substrate layer 17. The heating wire layer 13 and the heating layer 12 are fixed on the upper surface of the first substrate layer 11, and the heating layer 12 covers the outside of the heating wire layer 13. The first substrate layer 11 can be a polyethylene terephthalate substrate layer or a polyimide substrate layer, so that the first substrate layer 11 has good mechanical properties, impact strength, folding resistance, insulation, heat resistance and corrosion resistance. The heating wire layer 13 can be a conductive silver paste circuit layer, which can be fixed on the upper surface of the first substrate layer 11 by printing. The heating layer 12 can be a graphene heating layer, which can be fixed on the upper surface of the first substrate layer 11 by printing and covers the outside of the heating wire layer 13.

[0044] The upper circuit layer 14 of the pressure sensor is fixedly arranged on the lower surface of the first substrate layer 11. More specifically, the upper circuit layer 14 of the pressure sensor includes a first silver wire circuit layer and a first carbon paste layer. The first silver wire circuit layer is fixedly arranged on the lower surface of the first substrate layer 11, and the first carbon paste layer is fixedly covered on the outside of the first silver wire circuit layer, thereby improving the adhesion between the upper circuit layer 14 of the pressure sensor and the first substrate layer 11 and improving the conductive performance of the upper circuit layer 14 of the pressure sensor.

[0045] The pressure sensor lower circuit layer 16 is fixed to the upper surface of the second substrate layer 17. More specifically, the pressure sensor lower circuit layer 16 includes a second silver wire layer and a second carbon paste layer. The second silver wire layer is fixed to the upper surface of the second substrate layer 17, and the second carbon paste layer is fixedly covered on the outside of the second silver wire layer. This improves the adhesion between the pressure sensor lower circuit layer 16 and the second substrate layer 17, and enhances the conductivity of the pressure sensor lower circuit layer 16. The second substrate layer 17 can be made of polyethylene terephthalate or polyimide, which provides it with excellent mechanical properties, impact strength, folding resistance, insulation, heat resistance, and corrosion resistance.

[0046] The two side surfaces of the spacer layer 15 are respectively fixedly bonded to the lower surface of the first substrate layer 11 and the upper surface of the second substrate layer 17. More specifically, the spacer layer 15 can adopt a double-sided sandwich tape, and the two side surfaces of the spacer layer 15 are respectively fixedly bonded to the lower surface of the first substrate layer 11 and the upper surface of the second substrate layer 17.

[0047] The circuit layer 14 on the pressure sensor can be arranged in a dot matrix, and the spacer layer 15 is provided with through holes 151 whose positions correspond one-to-one to the circuit layers 14 on the pressure sensor. When the upper side of the spacer layer 15 is bonded to the lower surface of the first substrate layer 11, the circuit layers 14 on the pressure sensor are respectively located in the through holes 151. After the two side surfaces of the spacer layer 15 are respectively bonded to the lower surface of the first substrate layer 11 and the upper surface of the second substrate layer 17, the upper circuit layer 14 of the pressure sensor and the lower circuit layer 16 of the pressure sensor are spaced apart. When the first substrate layer 11 is not under pressure, the upper circuit layer 14 of the pressure sensor and the lower circuit layer 16 of the pressure sensor are not in contact. When the first substrate layer 11 is under pressure, that is, when a passenger sits on the seat, the first substrate layer 11 is deformed, the upper circuit layer 14 of the pressure sensor is under pressure and in contact with the lower circuit layer 16 of the pressure sensor. At this time, the lower circuit layer 16 of the pressure sensor outputs a signal to the controller, which outputs an on-off signal to the alarm through the controller, thereby reminding the passenger to fasten his seat belt. At the same time, the controller controls the heating wire layer 13 to turn on the power supply, and heats the seat through the heating layer 12.

[0048] The spacer layer 15 is provided with an exhaust duct 152 connected to the through hole 151, and the spacer layer 15 is also provided with an exhaust groove 153 connected to the exhaust duct 152. The exhaust groove 153 extends to the outer peripheral side of the spacer layer 15. When the first substrate layer 11 and the upper circuit layer 14 of the pressure sensor are under pressure, the air in the through hole 151 is discharged through the exhaust duct 152 and the exhaust groove 153, ensuring that the upper circuit layer 14 of the pressure sensor can contact the lower circuit layer 16 of the pressure sensor, thereby preventing insensitive pressure sensing.

[0049] The seat heating module of the present application can be assembled and produced using the following method and steps:

[0050] Step 1: Print conductive silver paste on the upper surface of the first substrate layer 11 to form a heating wire layer 13. The resistance of the heating wire layer 13 is controlled to be 5-15 ohms. Then, print graphene on the upper surface of the first substrate layer 11 and the heating wire layer 13 to form a heating layer 12. The graphene needs to completely cover the heating wire layer 13. After printing, the total loop resistance of the graphene should be controlled to be 20-25 ohms to avoid excessive resistance affecting the heating of the product.

[0051] Step 2: Printing a first silver wire circuit layer on the lower surface of the first substrate layer 11, and then printing a first carbon paste layer on the surface of the first silver wire circuit layer to form the pressure sensor upper circuit layer 14;

[0052] Step 3: Printing a second silver wire circuit layer on the upper surface of the second substrate layer 17, and then printing a second carbon paste layer on the surface of the second silver wire circuit layer to form the pressure sensor lower circuit layer 16;

[0053] Step 4: Punch out through holes 151, vent channels 152, and vent grooves 153 on the double-sided tape sandwich, adhere the upper surface of the double-sided tape sandwich to the lower surface of the first substrate layer 11, and place the dot-matrix-arranged upper circuit layer 14 of the pressure sensor in the through holes 151;

[0054] Step 5: Bond the upper surface of the second substrate layer 17 and the upper surface of the pressure sensor lower circuit layer 16 to the lower surface of the double-sided sandwich tape, assembling the pressure sensor upper circuit layer 14 and the pressure sensor lower circuit layer 16 to form a complete pressure sensor;

[0055] Step 6: Punch and form the product processed in step 5 according to the required shape, install positive and negative metal terminals and terminal plastic shells on the heating wire layer 13, and install positive and negative metal terminals and terminal plastic shells on the pressure sensor lower circuit layer 16. The positive and negative metal terminals are used to connect to the car controller and power supply.

[0056] The implementation principle of the seat heating module of this embodiment is as follows: Since the heating layer 12 and the heating wire layer 13 are arranged on the upper surface of the first substrate layer 11, and the pressure sensor upper circuit layer 14 is arranged on the lower surface of the first substrate layer 11, the pressure sensor upper circuit layer 14 will not interfere with the heating layer 12. Therefore, the heating layer 12 and the heating wire layer 13 can be arranged into the desired shape as needed, thereby continuously and evenly distributing the heating layer 12 on the first substrate layer 11. In turn, the heat generated by the heating layer 12 can be evenly distributed, improving the customer's riding experience. Furthermore, since the heating layer 12 and the heating wire layer 13 are both fixedly arranged on the upper surface of the first substrate layer 11, heating of the heating layer 12 can be achieved by energizing the heating wire layer 13, without poor contact, thereby effectively improving the heating effect of the heating layer 12. When the first substrate layer 11 is under pressure, that is, when a passenger sits on the seat, the first substrate layer 11 is deformed, and the upper circuit layer 14 of the pressure sensor is under pressure and contacts the lower circuit layer 16 of the pressure sensor. At this time, the lower circuit layer 16 of the pressure sensor outputs a signal to the controller, and the controller outputs an on-off signal to the alarm, thereby reminding the passenger to fasten the seat belt. At the same time, the controller controls the heating wire layer 13 to connect to the power heating layer 12, and heats the seat through the heating layer 12.

[0057] Example 2

[0058] Reference Figure 2 and Figure 3A car seat includes a seat heating module 10, a seat body 20, a first liquid storage bag 30, a heating element 40, an airbag 50, a second liquid storage bag 60, a first delivery pump 70, a second delivery pump 80 and a connecting assembly 90. The seat body 20 includes a frame 21, a cushion core 22, a cover 23 and a backrest core 24. The cushion core 22 and the backrest core 24 are fixed on the frame 21, and the cover 23 is mounted on the outside of the cushion core 22 and the backrest core 24. The seat heating module 10 is arranged on the cushion core 22 and the backrest core 24, and is located in the cover 23. More specifically, the first liquid storage bag 30, the airbag 50, the seat heating module 10 and the second liquid storage bag 60 are stacked in sequence from bottom to top on the seat cushion core 22 and are located in the face cover 23, wherein the first liquid storage bag 30 is fixed on the upper surface of the seat cushion core 22, the heating element 40 is fixed in the first liquid storage bag 30, the airbag 50 is fixed on the upper surface of the first liquid storage bag 30, the seat heating module 10 is fixed on the upper surface of the airbag 50, and the lower surface of the second substrate layer 17 of the seat heating module 10 is fixedly connected to the upper surface of the airbag 50, the second liquid storage bag 60 is fixed on the upper surface of the seat heating module 10, and the lower surface of the second liquid storage bag 60 is fixedly connected to the upper surface of the first substrate layer 11 of the seat heating module 10, and the upper surface of the second liquid storage bag 60 is in contact with the inner wall of the face cover 23.

[0059] The first liquid storage bag 30 or the second liquid storage bag 60 stores heating liquid. The first delivery pump 70 is connected to the first liquid storage bag 30 and the second liquid storage bag 60 respectively. The second delivery pump 80 is connected to the first liquid storage bag 30 and the second liquid storage bag 60 respectively. More specifically, the first liquid storage bag 30 is internally separated and provided with a plurality of independent first cavities 31 for storing heated liquid, the first delivery pump 70 and the second delivery pump 80 correspond one-to-one to the first cavity 31, the liquid inlet end of the first delivery pump 70 is connected to the first cavity 31 through the first pipe 71, and the liquid outlet end of the first delivery pump 70 is connected to the second cavity 61 through the second pipe 72; the second liquid storage bag 60 is internally separated and provided with a plurality of independent second cavities 61 for storing heated liquid, the first delivery pump 70 and the second delivery pump 80 correspond one-to-one to the second cavity 61, the liquid inlet end of the second delivery pump 80 is connected to the second cavity 61 through the third pipe 81, and the liquid outlet end of the second delivery pump 80 is connected to the first cavity 31 through the fourth pipe 82.

[0060] After a passenger sits on the car seat of the present application, when the seat needs to be heated, the seat heating is divided into a rapid preheating stage and a uniform heating stage. In the rapid preheating stage, the heating liquid in the second cavity 61 of the second liquid storage bag 60 is empty, and the first cavity 31 of the first liquid storage bag 30 is filled with heating liquid. At this time, the heating layer 12 of the seat heating module quickly heats the seat cover 23, allowing the passenger to quickly feel the temperature of the seat and reduce the initial cold feeling when sitting on the seat. While the heating layer 12 is heating, the heating liquid in the first cavity 31 is heated by the heating element 40, and the first liquid storage bag 30 is isolated by the airbag 50 to prevent the low-temperature heating liquid in the first liquid storage bag 30 from causing a cold feeling to the passenger when the passenger initially sits. When the heating liquid in the first liquid storage bag 30 reaches a certain temperature, it enters the uniform heating stage. At this time, the first delivery pump 70 pumps the heating liquid in the first cavity 31 into the second cavity 61 of the second liquid storage bag 60. The heating layer 12 continuously heats the heating liquid in the second cavity 61. Since the heat distribution in the heating liquid is more uniform, the passenger can experience a more uniform heating sensation after the heating liquid is pumped into the second cavity 61. When the passenger leaves the seat, the second delivery pump 80 re-delivers the heating liquid in the second cavity 61 to the first cavity 31.

[0061] Reference Figure 4 , the first liquid storage bag 30, the airbag 50, the seat heating module 10 and the second liquid storage bag 60 are fixedly connected, and the first liquid storage bag 30 is detachably connected to the seat cushion core 22 through the connecting assembly 90. During the production and assembly of the automobile seat of the present application, the first liquid storage bag 30, the heating element 40, the airbag 50 and the second liquid storage bag 60 can be bonded to each other to form a heating sensor assembly, and the heating sensor assembly can be installed or disassembled through the connecting assembly 90. More specifically, the connecting assembly 90 includes a cylinder 91, a connecting block 92, a column 93, a trip rod 94, a locking pin 95, a first compression spring 96, a second compression spring 97 and a tension spring 98. The cylinder 91 is fixed on the seat cushion core 22. The cushion core 22 is provided with a through groove 221 which is in communication with the cylinder 91, the inner wall of the cylinder 91 is provided with a limiting boss 911, the connecting block 92 is fixedly connected to the first liquid storage bag 30, the connecting block 92 is provided with a first groove 921, a second groove 922 and a third groove 923 which are in communication with each other, the connecting block 92 is provided with an avoidance groove 924 which is in communication with the third groove 923, the connecting block 92 is provided with a transverse groove 925, and the connecting block 92 is provided with a vertical hole 926 which is in communication with the avoidance groove 924 and the transverse groove 925.

[0062] The connecting block 92 is inserted into the cylinder 91, the end of the connecting block 92 abuts against the upper end surface of the limiting boss 911, the column 93 is inserted into the first groove 921, the column 93 is provided with a slide groove 931 and a locking groove 932, the locking pin 95 is slidably inserted into the transverse groove 925 and the locking groove 932, the two ends of the tension spring 98 are respectively fixed to the locking pin 95 and the inner wall of the transverse groove 925, the locking pin 95 is provided with a positioning hole 951, the tripping rod 94 is slidably inserted into the slide groove 931, the upper end of the tripping rod 94 is provided with a cross bar 941, and the cross bar 941 is provided with a limiting Rod 942 and cross rod 941 are slidably arranged in the avoidance groove 924, and the limiting rod 942 is slidably inserted in the vertical hole 926 and the positioning hole 951. The first compression spring 96 is located in the second groove 922, and the two ends of the first compression spring 96 respectively abut against the end faces of the column 93 and the second groove 922. The second compression spring 97 is located in the third groove 923, and the two ends of the second compression spring 97 respectively abut against the end faces of the tripping rod 94 and the third groove 923. A claw 933 is provided on the column 93, and the claw 933 is snap-fitted into abutment with the lower surface of the limiting boss 911.

[0063] When the heating sensor assembly needs to be installed on the seat cushion core 22, the claw 933 is snap-fitted into engagement with the lower surface of the limiting boss 911 by means of a plug-in buckle, thereby quickly installing the heating sensor assembly on the seat cushion core 22. This improves assembly efficiency and reduces the labor intensity of the staff. When the heating sensor assembly needs to be removed from the seat cushion core 22, a rod-shaped tool is inserted into the through slot 221 and pushes the release rod 94 upward, causing the release rod 94 to overcome the elastic force of the second compression spring 97 and move upward, simultaneously driving the cross bar 941 and the limiting rod 942 upward until the limiting rod 942 is released from the positioning hole 951, thereby losing its limiting effect on the locking pin 95. At this time, under the tension of the tension spring 98, the locking pin 95 is driven to withdraw from the locking groove 932 of the column 93, and then the column 93 is disengaged from the first groove 921 under the elastic force of the first compression spring 96, and the column 93 and the claw 933 are separated from the connecting block 92. When the limiting effect of the claw 933 is lost, the heating sensor assembly can be removed from the cushion core 22, thereby facilitating the replacement or maintenance of the heating sensor assembly.

[0064] The implementation principle of a car seat in this embodiment is: when a passenger sits on the car seat of this application, the heating layer 12 of the seat heating module quickly heats the seat cover 23, so that the passenger can quickly feel the temperature of the seat, and at the same time the heating liquid in the first cavity 31 is heated by the heating element 40. When the heating liquid is heated to a certain temperature, the heating liquid in the first cavity 31 is pumped to the second cavity 61 of the second liquid storage bag 60 by the first delivery pump 70, so that the passenger can get a more uniform heating sensation.

[0065] When the heating sensor assembly needs to be installed on the seat cushion core 22, the heating sensor assembly can be quickly installed on the seat cushion core 22 by inserting the clip 933 into the lower surface clip of the limiting boss 911; when the heating sensor assembly needs to be removed from the seat cushion core 22, a rod-shaped tool is used to extend into the through groove 221 and push the release rod 94 upward to remove the heating sensor assembly from the seat cushion core 22.

[0066] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A car seat, characterized in that: The seat heating module comprises a first substrate layer (11), a heating layer (12), a heating wire layer (13), a pressure sensor upper circuit layer (14), a spacer layer (15), a pressure sensor lower circuit layer (16) and a second substrate layer (17), wherein the heating wire layer (13) and the heating layer (12) are fixed on the upper surface of the first substrate layer (11), the heating layer (12) covers the outer side of the heating wire layer (13), the pressure sensor upper circuit layer (14) is fixed on the first substrate layer (11), and the heating wire layer (13) and the heating layer (12) are fixed on the upper surface of the first substrate layer (11). The pressure sensor lower circuit layer (16) is fixed on the upper surface of the second substrate layer (17), the two side surfaces of the spacer layer (15) are respectively fixed to the lower surface of the first substrate layer (11) and the upper surface of the second substrate layer (17), the pressure sensor upper circuit layer (14) and the pressure sensor lower circuit layer (16) are spaced apart, and when the first substrate layer (11) is pressurized, the pressure sensor upper circuit layer (14) can contact the pressure sensor lower circuit layer (16); The seat body (20) further comprises a seat body (20), wherein the seat body (20) comprises a frame (21), a seat cushion core (22), a face cover (23) and a backrest core (24), wherein the seat cushion core (22) and the backrest core (24) are fixedly mounted on the frame (21), the face cover (23) is mounted on the outside of the seat cushion core (22) and the backrest core (24), and the seat heating module (10) is mounted on the seat cushion core (22) and the backrest core (24), and is located inside the face cover (23); The seat cushion seat further comprises a first liquid storage bag (30), a heating element (40), an air bag (50), a second liquid storage bag (60), a first delivery pump (70) and a second delivery pump (80). The first liquid storage bag (30), the air bag (50), the seat heating module (10) and the second liquid storage bag (60) are sequentially stacked on the seat cushion core (22) from bottom to top and are located in the seat cover (23). The heating element (40) is located in the first liquid storage bag (30). The first delivery pump (70) is respectively connected to the first liquid storage bag (30) and the second liquid storage bag (60). The second delivery pump (80) is respectively connected to the first liquid storage bag (30) and the second liquid storage bag (60).

2. The car seat according to claim 1, characterized in that The heating layer (12) is a graphene heating layer, and the heating wire layer (13) is a conductive silver paste circuit layer.

3. The car seat according to claim 1, characterized in that The first substrate layer (11) is a polyethylene terephthalate substrate layer or a polyimide substrate layer, and the second substrate layer (17) is a polyethylene terephthalate substrate layer or a polyimide substrate layer.

4. The car seat according to claim 1, characterized in that The spacer layer (15) is a double-sided sandwich adhesive, and the two side surfaces of the spacer layer (15) are fixedly bonded to the lower surface of the first substrate layer (11) and the upper surface of the second substrate layer (17), respectively.

5. The car seat according to claim 1, characterized in that The circuit layer (14) on the pressure sensor is arranged in a dot matrix, and the spacer layer (15) is provided with through holes (151) whose positions correspond one-to-one with the circuit layer (14) on the pressure sensor.

6. The car seat according to claim 5, characterized in that The spacer layer (15) is provided with an exhaust passage (152) connected to the through hole (151), and the spacer layer (15) is further provided with an exhaust groove (153) connected to the exhaust passage (152), and the exhaust groove (153) extends to the outer peripheral side of the spacer layer (15).

7. The car seat according to claim 1, characterized in that The pressure sensor upper circuit layer (14) includes a first silver wire circuit layer and a first carbon paste layer, wherein the first silver wire circuit layer is fixedly arranged on the lower surface of the first substrate layer (11), and the first carbon paste layer is fixedly covered on the outer side of the first silver wire circuit layer; the pressure sensor lower circuit layer (16) includes a second silver wire circuit layer and a second carbon paste layer, wherein the second silver wire circuit layer is fixedly arranged on the upper surface of the second substrate layer (17), and the second carbon paste layer is fixedly covered on the outer side of the second silver wire circuit layer.

8. The car seat according to claim 1, wherein: It also includes a connecting assembly (90), wherein the first liquid storage bag (30), the airbag (50), the seat heating module (10) and the second liquid storage bag (60) are fixedly connected, and the first liquid storage bag (30) is detachably connected to the seat cushion core (22) via the connecting assembly (90).

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