Child safety seat

Abstract

The present application relates to a child safety seat comprising: a seat; the control device is arranged in the seat; the ventilation device is arranged in the seat and is electrically connected to the control device; the upper cover is provided with a first vent hole; and the upper cover covers the accommodating cavity. The ventilation device is arranged in the containing cavity and comprises a first fixing base fixedly arranged in the containing cavity, and an air channel is formed between the first fixing base and the upper cover. And the fan is fixedly arranged on the first fixed seat and is electrically connected with the control device. The first fixing seat is provided with an air inlet and an air outlet, the air inlet is in fluid communication with a third vent hole in the backrest position of the seat, the air outlet is in fluid communication with the air duct, the first fixing seat further comprises a guide rib, the guide rib is arranged at the end, away from the air outlet, of the first fixing seat, the guide rib is of a U-shaped structure, and the guide rib is arranged at the position opposite to the air outlet.

Description

Technical Field

[0001] This application relates to the field of children's products technology, and in particular to a child safety seat. Background Technology

[0002] Child safety seats are widely used to ensure the safety of child passengers in vehicles. When the vehicle interior temperature is low, such as in winter, the child safety seat will also be cold, resulting in poor comfort. In extreme cases, this can even cause a child sitting in it to catch a cold. Conversely, when the vehicle interior temperature is high, such as in summer, the child safety seat will also be hot, similarly leading to poor comfort. Furthermore, due to their safety design, child safety seats provide strong coverage for the child, which can hinder heat dissipation and exacerbate the decrease in comfort caused by high temperatures. Utility Model Content

[0003] Therefore, it is necessary to provide a child safety seat that can be heated when the temperature is low and ventilated and cooled when the temperature is high.

[0004] According to one aspect of this application, a child safety seat is provided, comprising: a seat, a seat cushion, a heating device, and a control device. The seat is disposed on the seat. The heating device is detachably disposed within the seat cushion. The control device is disposed within the seat, and the heating device is electrically connected to the control device.

[0005] The child safety seat according to the embodiments of this application achieves controllable heating of the seat through a heating device and a control device, thereby improving the riding comfort of the child safety seat.

[0006] In one embodiment, the child safety seat further includes a first temperature measuring device and a temperature safety device. The first temperature measuring device is disposed on the seat cushion and communicatively connected to the control device, and is configured to measure the real-time temperature of the heating element. The temperature safety device is disposed on the heating element and configured to stop heating when the heating element reaches a first preset temperature.

[0007] In one embodiment, the first temperature measuring device is a temperature detection chip; the temperature protection device is a resettable temperature fuse.

[0008] In one embodiment, the heating device includes a heating element and a flame-retardant element. The heating element is disposed within the flame-retardant element. The first temperature measuring device is disposed on the flame-retardant element, and the temperature protection device is disposed at the heating element.

[0009] In one embodiment, the heating device further includes heat dissipation holes disposed on the flame-retardant component. A receiving space is formed within the seat cushion, and the heating device is detachably disposed within the receiving space of the seat cushion, the receiving space having an openable and closable opening.

[0010] In one embodiment, the heating device has a positioning recess on its edge, and the receiving space has a positioning protrusion on its edge. The heating device is fixed in the receiving space by the shape matching of the positioning recess and the positioning protrusion.

[0011] In one embodiment, the heating device further includes a connection terminal, through which the heating element is detachably electrically connected to the control device. The temperature protection device is connected in series with the heating element.

[0012] In one embodiment, the heating element comprises a heating wire made of metal and / or carbon fiber, or a heating mesh made of graphene.

[0013] In one embodiment, the control device includes a control unit disposed within the seat, and the heating device is electrically connected to the control unit. A first temperature measuring device is communicatively connected to the control unit, and the control unit is configured to: control the heating element to stop heating when the temperature measured by the first temperature measuring device reaches a second preset temperature; and / or control the heating element to start heating or allow the heating element to continue heating when the temperature measured by the first temperature measuring device is lower than the second preset temperature. The second preset temperature is adjustable, and the maximum value of the second preset temperature is less than the first preset temperature.

[0014] In one embodiment, the control device further includes an operating unit and a wireless communication module. The operating unit is disposed on the child safety seat and communicatively connected to the control unit, the operating unit being configured to adjust the operating state of the heating device. The control unit is wirelessly and communicatively connected to an external device via the wireless communication module, the external device being configured to adjust the operating state of the heating device.

[0015] In one embodiment, the child safety seat further includes: a ventilation device, a cover, and a receiving cavity. The ventilation device is disposed within the seat and electrically connected to the control device. The cover has a first vent and covers the receiving cavity. The ventilation device is disposed within the receiving cavity, and the seat cushion is disposed on the cover.

[0016] The child safety seat according to the embodiments of this application achieves ventilation and heat dissipation of the seat through a ventilation device, thereby improving the riding comfort of the child safety seat.

[0017] In one embodiment, the ventilation device includes a first mounting base and a fan. The first mounting base is fixedly disposed in the receiving cavity, and an air duct is formed between the first mounting base and the upper cover. The fan is fixedly disposed on the first mounting base and electrically connected to the control device. The first mounting base is provided with an air inlet and an air outlet, the air inlet being in fluid communication with a third vent at the back of the seat, and the air outlet being in fluid communication with the air duct.

[0018] In one embodiment, the air duct is recessed in a direction away from the seat cushion.

[0019] In one embodiment, the height of the duct in the airflow direction is less than the height of the air outlet, and the cross-sectional area of ​​the duct in the airflow direction is greater than the cross-sectional area of ​​the air outlet.

[0020] In one embodiment, the ventilation device further includes a second temperature measuring device and a control unit. The second temperature measuring device is disposed on the upper cover and communicatively connected to the control unit, and is configured to measure the real-time temperature of the seat. The control unit is disposed within the receiving cavity, and the fan is electrically connected to the control unit. The second temperature measuring device is communicatively connected to the control unit, and the control unit is configured to: control the fan to stop ventilation when the temperature measured by the second temperature measuring device is lower than a third preset temperature; and / or control the fan to start ventilation or allow the fan to continue ventilation when the temperature measured by the second temperature measuring device reaches the third preset temperature.

[0021] In one embodiment, the first fixing base further includes: a first guide rib disposed at one end of the first fixing base near the air outlet, the guide rib defining a first guide space between the air outlet and the air duct, the first guide space being configured such that the cross-sectional area of ​​the first guide space gradually increases along the direction from the air outlet to the air duct.

[0022] In one embodiment, the first mounting base further includes a second guide rib disposed at one end of the first mounting base away from the air outlet, the second guide rib defining a second guide space in the air duct, the second guide space being configured such that the cross-sectional area of ​​the second guide space gradually decreases along the direction from the air outlet to the air duct.

[0023] In one embodiment, the first guide space is configured such that its width gradually increases along the direction from the air outlet to the air duct; the second guide rib is a U-shaped structure and is disposed at a position opposite to the air outlet.

[0024] In one embodiment, the ventilation device further includes: a second fixing seat disposed within the receiving cavity, the second fixing seat being fixedly connected to the side of the first fixing seat opposite to the top cover, and a seat belt guide groove being defined between the second fixing seat and the first fixing seat.

[0025] In one embodiment, the ventilation device further includes: a lower cover disposed within the receiving cavity, the lower cover being connected to the side of the second fixing seat opposite to the first fixing seat, the lower cover defining an installation space between the lower cover and the second fixing seat, and the control unit being fixedly disposed within the installation space. The control device further includes: an operating unit disposed on the seat and communicatively connected to the control unit, the operating unit being configured to adjust the operating state of the ventilation device.

[0026] According to one aspect of this application, a child safety seat is provided, comprising: a seat including a top cover; a plurality of fans; and a plurality of air guides having hollow air ducts and a plurality of second vents, the second vents being disposed on a side facing the top cover and in fluid communication with the air ducts. The plurality of air guides are in fluid communication with the plurality of fans respectively.

[0027] In one embodiment, a plurality of air guides are located at intervals on both sides of the upper cover, and the plurality of air guides form grooves with the upper cover.

[0028] In one embodiment, the child safety seat further includes a fixing plate, which is fixedly connected to at least two of the plurality of air guides, and the fixing plate forms a channel with the groove.

[0029] In one embodiment, the top cover is provided with a through hole for the seat belt length adjustment end to pass through, and the through hole communicates with a groove or channel.

[0030] In one embodiment, the fixing plate is configured to extend from the back of the seat to the seat portion of the seat, and the fixing plate includes: a back section disposed on the back of the seat; a seat section disposed on the seat portion of the seat; and a connecting section connecting the back section and the seat section.

[0031] In one embodiment, the air guide is configured as an elongated structure that extends from the back of the seat to the seat portion.

[0032] In one embodiment, the air guide is provided with a support rib, and the top cover is provided with a first rib extending in a vertical direction. The side wall of the first rib is provided with a support hole, and the support rib is inserted into the support hole to fix the air guide to the top cover.

[0033] In one embodiment, the top cover is further provided with a second rib extending in a horizontal direction, and the first rib and the second rib form a reinforcing groove in the top cover, the reinforcing groove being provided with a ventilation opening.

[0034] In one embodiment, the end of the supporting rib that protrudes from the supporting hole has an air vent, which is in fluid communication with the air duct and with the upper cover through a ventilation opening.

[0035] In one embodiment, the top cover is provided with a plurality of first vent holes located above the air guides and air holes located above the grooves between the air guides. The first vent holes are arranged to overlap with the second vent holes.

[0036] In one embodiment, the air guide includes: an upper air duct cover disposed on the side of the air guide near the upper cover, with a second vent provided on the upper air duct cover; and a lower air duct cover disposed on the side of the air guide away from the upper cover, the lower air duct cover and the upper air duct cover being snapped together to form an air duct. A fan is fixedly connected to the upper air duct cover, and the upper air duct cover is fixedly connected to the upper cover.

[0037] In one embodiment, the duct cover is provided with a fan mounting portion, the shape of which is adapted to the shape of the fan, and the fan is fixedly connected to the fan mounting portion. The fan mounting portion forms part of the fan housing.

[0038] In one embodiment, the plurality of air guides includes two air guides that extend along the longitudinal direction of the top cover such that the second vents are distributed on the wing adjacent to the seat; the air ducts of the two air guides are independent of each other; each of the two air guides is connected to a fan; the fan is connected to a first end of the air guide, and the support rib is located at a second end of the air guide.

[0039] In one embodiment, the side edge of the upper cover of the air duct includes a first engaging member, and the side edge of the lower cover of the air duct includes a second engaging member. When the lower cover of the air duct and the upper cover of the air duct are fastened together, the first engaging member and the second engaging member engage to fix the lower cover of the air duct and the upper cover of the air duct in a fixed connection.

[0040] In one embodiment, the side edge of the fixing plate is provided with an extension that covers and supports the lower cover of the air duct.

[0041] In one embodiment, the child safety seat further includes a control device comprising: a control unit disposed on a mounting plate, the fan being electrically connected to the control unit; an operating unit disposed on the seat and communicatively connected to the control unit, the operating unit being configured to adjust the operating state of the fan; and a wireless communication module, the control unit being wirelessly and communicatively connected to an external device via the wireless communication module, the external device being configured to adjust the operating state of the fan.

[0042] In one embodiment, a receiving box and a cover are provided on the side of the fixing plate opposite to the top cover, the control unit is fixedly disposed in the receiving box, and the cover is detachably fixed to the receiving box to close the receiving box.

[0043] According to one aspect of this application, a child safety seat is provided, comprising: a seat; a seat cushion disposed on the seat; a heating device removably disposed within the seat cushion; a control device disposed within the seat, the heating device being electrically connected to the control device; a first temperature measuring device disposed on the seat cushion and communicatively connected to the control device, the first temperature measuring device being configured to measure the real-time temperature of the heating device; and a temperature protection device disposed on the heating device and configured to stop heating the heating device when it reaches a first preset temperature. The heating device includes: a heating element, wherein the temperature protection device is connected in series with the heating element, the first temperature measuring device is a temperature detection chip, and the temperature protection device is a resettable temperature fuse.

[0044] In one embodiment, the heating device further includes: a flame-retardant component, a heating element disposed within the flame-retardant component, a first temperature measuring device disposed on the flame-retardant component, and a temperature protection device disposed at the heating element; and heat dissipation holes arranged on the flame-retardant component. A bag-shaped receiving space is formed within the seat cushion. The heating device is detachably disposed within the receiving space of the seat cushion. The receiving space has an openable and closable opening. A positioning recess is provided at the edge of the heating device, and a positioning protrusion is provided at the edge of the receiving space. The heating device is fixed within the receiving space by the shape matching of the positioning recess and the positioning protrusion.

[0045] In one embodiment, the control device includes a control unit disposed within the seat, and a heating device electrically connected to the control unit. A first temperature measuring device is communicatively connected to the control unit, and the control unit is configured to: control the heating element to stop heating when the temperature measured by the first temperature measuring device reaches a second preset temperature; and / or control the heating element to start heating or allow the heating element to continue heating when the temperature measured by the first temperature measuring device is lower than the second preset temperature. The first preset temperature is not adjustable by the user, the second preset temperature is adjustable by the user, and the maximum value of the second preset temperature is less than the first preset temperature.

[0046] According to another aspect of this application, a child safety seat is also provided, comprising: a seat; a control device disposed within the seat; a ventilation device disposed within the seat and electrically connected to the control device; a top cover having a first vent; and a receiving cavity covered by the top cover. The ventilation device is disposed within the receiving cavity, and a seat cushion is disposed on the top cover. The ventilation device includes: a first fixing seat fixedly disposed within the receiving cavity, forming an air duct between the first fixing seat and the top cover; and a fan fixedly disposed on the first fixing seat and electrically connected to the control device. The first fixing seat has an air inlet and an air outlet, the air inlet being in fluid communication with a third vent at the back of the seat, and the air outlet being in fluid communication with the air duct. The height of the air duct in the airflow direction is less than the height of the air outlet, and the cross-sectional area of ​​the air duct in the airflow direction is greater than the cross-sectional area of ​​the air outlet.

[0047] In one embodiment, the first fixing seat further includes a guide rib disposed at one end of the first fixing seat away from the air outlet. The guide rib defines a guiding space in the air duct. The guiding space is configured such that the cross-sectional area of ​​the guiding space gradually decreases along the direction from the air outlet to the air duct. The guide rib has a U-shaped structure and is disposed at a position opposite to the air outlet.

[0048] In one embodiment, the ventilation device further includes: a second fixing seat disposed within the receiving cavity, the second fixing seat being fixedly connected to the side of the first fixing seat opposite to the top cover, and a seat belt guide groove being defined between the second fixing seat and the first fixing seat.

[0049] According to one aspect of this application, a child safety seat is provided, comprising: a seat including a top cover; a plurality of fans; and a plurality of air guides having hollow air ducts and a plurality of vents, the vents being disposed on a side facing the top cover and in fluid communication with the air ducts. The plurality of air guides are in fluid communication with the plurality of fans respectively, and the plurality of air guides are respectively spaced apart on both lateral sides of the top cover, the plurality of air guides forming grooves with the top cover.

[0050] In one embodiment, the child safety seat further includes a fixing plate, which is fixedly connected to at least two of a plurality of air guides, and the fixing plate forms a channel with the groove. The top cover is provided with a through hole for the seat belt length adjustment end to pass through, and the through hole communicates with the groove or channel.

[0051] In one embodiment, the air guide is provided with a support rib, and the top cover is provided with a first rib extending in a vertical direction. The side wall of the first rib is provided with a support hole, and the support rib is inserted into the support hole to fix the air guide to the top cover.

[0052] In one embodiment, the top cover is further provided with a second rib extending horizontally, and the first rib and the second rib form a reinforcing groove in the top cover, the reinforcing groove being provided with a ventilation opening. One end of the supporting rib protruding from the supporting hole has an air vent, the air vent being in fluid communication with the air duct, and also in fluid communication with the top cover through the ventilation opening.

[0053] In one embodiment, the air guide further includes an air outlet port in fluid communication with the air duct, the air outlet port being closer to the fan than the vent. The child safety seat also includes: a support cushion assembly detachably mounted on the seat, the support cushion assembly having a cavity formed inside, and a vent formed on the bottom surface of the support cushion assembly in fluid communication with the cavity, the vent being configured such that when the support cushion assembly is mounted on the seat, the vent is in fluid communication with the air outlet port; and a connector disposed on either the seat or the support cushion assembly and capable of being inserted into the air outlet port to block fluid communication between the fan and the vent.

[0054] According to one aspect of this application, a child safety seat is provided, comprising: a seat. The seat includes: a top cover having ventilation holes thereon; a fan; an air guide disposed below the top cover and in fluid communication with the fan, the air guide having a hollow air duct and an air outlet port disposed on the side of the air guide facing the top cover and in fluid communication with the air duct; and a support pad assembly detachably mounted on the seat, the support pad assembly having a cavity formed inside, and a ventilation hole formed on the bottom surface of the support pad assembly in fluid communication with the cavity. The ventilation hole is configured such that when the support pad assembly is mounted on the seat, the ventilation hole is in fluid communication with the air outlet port.

[0055] In one embodiment, the support pad assembly is provided with a connector, in which a vent is formed, and the connector is at least partially inserted into an outlet port to enter an air duct. The connector includes a windward portion in fluid communication with the vent and a windbreak portion that blocks fluid communication between the fan and the vent.

[0056] In one embodiment, the child safety seat further includes a vent flap pivotally disposed on the upper surface of the cover or the seat fabric, with a plug on one side of the vent flap. The vent flap is pivotable between an open position and a closed position. In the closed position, the plug closes the ventilation opening, and in the open position, the plug does not close the ventilation opening, allowing the ventilation opening to be in fluid communication with the air outlet.

[0057] In one embodiment, the child safety seat further includes a connector pivotally connected to the air duct cover and pivotable between a first position blocking the air outlet and a second position blocking the air duct.

[0058] In one embodiment, the support pad assembly includes: a pad body having a through groove; and a pad core disposed within the through groove. The thickness of the pad core is less than the depth of the through groove, thereby forming a cavity in the through groove when the pad core is disposed within it. Attached Figure Description

[0059] The above and other objects, features, and advantages of this application will become clearer through a more detailed description of the preferred embodiments illustrated in the accompanying drawings. The same reference numerals denote the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the main points of this application.

[0060] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0061] Figure 1A This is a schematic perspective view of a child safety seat according to one embodiment of this application.

[0062] Figure 1B yes Figure 1A A magnified view of part B in the middle section.

[0063] Figure 2 This is a schematic diagram of the structure of a heating device according to an embodiment of this application.

[0064] Figure 3 This is a schematic diagram of the structure of a seat cushion according to an embodiment of the present application, wherein the heating device is completely placed inside the seat cushion.

[0065] Figure 4 This is a schematic diagram of the structure of a seat cushion according to an embodiment of the present application, wherein the heating device is partially placed inside the seat cushion.

[0066] Figure 5 This is a schematic perspective view of a seat according to one embodiment of this application.

[0067] Figure 6 yes Figure 5 The diagram shows a schematic perspective view of the seat, with the top cover removed.

[0068] Figure 7 yes Figure 6 The image shows a schematic perspective view of the seat, with the fan removed.

[0069] Figure 8 This is a schematic perspective view of a seat according to one embodiment of this application.

[0070] Figure 9 This is a schematic side sectional view of a child safety seat according to one embodiment of this application.

[0071] Figure 10 yes Figure 9 A magnified view of part A in the middle.

[0072] Figure 11 This is a schematic perspective view of a ventilation device according to one embodiment of the present application.

[0073] Figure 12 This is a schematic perspective view of a ventilation device according to one embodiment of the present application.

[0074] Figure 13 This is a schematic exploded view of a ventilation device according to one embodiment of this application.

[0075] Figure 14 This is a circuit connection diagram according to one embodiment of the present application.

[0076] Figure 15 This is a schematic perspective view of a child safety seat according to one embodiment of this application.

[0077] Figure 16 yes Figure 15 A magnified view of part C in the middle.

[0078] Figure 17 This is a schematic perspective view of a seat according to one embodiment of this application.

[0079] Figure 18 yes Figure 17 A magnified view of part D in the middle.

[0080] Figure 19 This is another schematic perspective view of a seat according to one embodiment of this application.

[0081] Figure 20 This is a schematic perspective view of a ventilation device according to an embodiment of this application.

[0082] Figure 21 It is along Figure 20 The sectional view taken from the EE line.

[0083] Figure 22 yes Figure 20 A magnified view of part F in the image.

[0084] Figure 23 This is another schematic perspective view of a ventilation device according to one embodiment of this application.

[0085] Figure 24 yes Figure 23 A schematic perspective view of the ventilation system in the image, with the cover of the housing removed.

[0086] Figure 25 This is a schematic diagram of the structure of a remote control according to an embodiment of this application.

[0087] Figure 26A This is a schematic perspective view of a seat according to one embodiment of this application.

[0088] Figure 26B yes Figure 26A The image shows a schematic perspective view of the seat with the cushion installed.

[0089] Figure 27 This is a schematic perspective view of a seat and support cushion assembly according to one embodiment of this application.

[0090] Figure 28A This is a schematic perspective view of a support pad assembly according to one embodiment of this application.

[0091] Figure 28B yes Figure 28A The diagram shows a schematic perspective view of the support pad assembly after the seat cushion has been installed.

[0092] Figure 29This is another schematic perspective view of a support pad assembly according to one embodiment of this application.

[0093] Figure 30 It is along Figure 27 A schematic cross-sectional view of the virtual plane α in the diagram.

[0094] Figure 31A This is a schematic perspective view of a seat with a shield installed according to one embodiment of the present application, wherein the shield is in the open position.

[0095] Figure 31B It is along Figure 31A A schematic cross-sectional view of the virtual plane γ in the image, where the occlusion plate is in the closed position.

[0096] Figure 32 This is a schematic perspective view of a seat with its top cover removed, according to one embodiment of this application.

[0097] Figure 33 This is a schematic perspective view of an air guide component according to an embodiment of this application.

[0098] Figure 34 It is along Figure 33 A schematic cross-sectional view of the virtual plane β in the diagram.

[0099] Figure 35A This is a schematic perspective view of a seat according to an embodiment of this application, showing that... Figure 31B The seat is replaced with a cover plate, which is in the second position.

[0100] Figure 35B This is a schematic perspective view of a seat according to an embodiment of this application, showing that... Figure 31B The seat is replaced with a cover plate, with the cover plate in the first position.

[0101] Figure 36A This is a schematic perspective view of a support pad assembly according to one embodiment of this application.

[0102] Figure 36B yes Figure 36A A schematic exploded view of the support pad assembly shown.

[0103] List of reference numerals

[0104] 10. Seat; 101. Upper cover; 102. Receiving cavity; 1011. First vent; 103. Second fixing seat; 1031. Seat belt guide groove; 104. Lower cover; 1041. Installation space; 120. Third vent.

[0105] 20. Seat cushion; 201. Accommodation space; 2011. Positioning protrusion; 202. Opening.

[0106] 30. Heating device; 301. Heating element; 302. Flame-retardant element; 303. First temperature measuring device; 304. Heat dissipation hole; 305. Connecting terminal; 306. Positioning recess.

[0107] 40. Control device; 401. Control unit; 402. Operating unit; 4021. Power switch; 4022. Heating switch; 4023. Fan switch.

[0108] 50. Safety device,

[0109] 60. Ventilation device; 601. First fixed base; 602. Fan; 603. Second side temperature device; 6011. Air duct; 6012. First guide rib; 6013. Air inlet; 6014. Air outlet; 6015. Second guide rib; 6021. Outlet; 6022. Inlet; 60121. First guide space; 60151. Second guide space.

[0110] 70. Base.

[0111] 11. Back, 12. Seat

[0112] 604, air guide component; 6011, air duct; 1015, through hole; 6041, load-bearing rib; 1012, load-bearing hole; 1013, air outlet.

[0113] 6042. Upper cover of air duct; 6043. Lower cover of air duct; 60421. First locking component; 60431. Second locking component; 6044. Second vent hole; 6045. Groove; 6046. Guide part; 605. Fixing plate; 6051. Channel; 6052. Extension part.

[0114] 1014. Vent, 6053. Reservoir, 6054. Cover, 6055. Back section, 6056. Seat section, 6057. Connecting section

[0115] 4024, First indicator light; 4026, First seat angle adjustment button; 4027, Second seat angle adjustment button; 4028, First fan on button; 4029, First fan off button; 60432, First mounting part; 60422, Fan mounting part; 60423, Second mounting part.

[0116] 81. Shoulder straps; 82. Waist belt; 83. Hip straps; 84. Length adjustment straps; 85. Buckles.

[0117] 90. Remote control; 901. Second indicator light; 902. Third seat angle adjustment button; 903. Second fan on button; 904. Second fan off button; 905. Fourth seat angle adjustment button.

[0118] 13. Support pad assembly; 131. Pad body; 1311. Through groove; 132. Pad core; 133. Connector; 134. Cavity; 135. Seat cushion; 1331. Ventilation hole; 1332. Windward section; 13321. Opening; 1333. Windproof section.

[0119] 130. Ventilation hole; 140. Shielding plate; 141. Hole plug; 6047. Air outlet. Detailed Implementation

[0120] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate preferred embodiments of the application. However, this application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0121] It should be noted that when a component is considered to "connect" another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "installation," "one end," "the other end," and similar expressions used in this article are for illustrative purposes only.

[0122] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. In this application, unless otherwise specified, "front-to-back direction" refers to the direction the infant faces while seated in a child safety seat, and "lateral direction" refers to the direction orthogonal to the "front-to-back direction".

[0123] refer to Figure 1A , Figure 1AThis is a schematic perspective view of a child safety seat according to one embodiment of this application. In one embodiment of this application, a child safety seat is provided, comprising: a seat 10 and a base 70, with the seat 10 fixed to the base 70. A top cover 101 is provided on the side of the seat 10 facing the child passenger seated thereon, and the top cover 101 is provided with a plurality of first vent holes 1011. The first vent holes 1011 are used to enhance the heat exchange capacity of the seat 10. For example, the first vent holes 1011 can increase the flow rate of hot air flowing through the seat 10, so that the seat 10 is heated more evenly. For example, the first vent holes 1011 can increase the flow rate of room temperature air flowing through the seat 10, thereby enhancing the ventilation and heat dissipation of the seat 10.

[0124] refer to Figures 2 to 4 , Figure 2 This is a schematic diagram of the structure of a heating device according to an embodiment of this application. Figure 3 This is a schematic diagram of the structure of a seat cushion according to an embodiment of this application, wherein the heating device is completely placed inside the seat cushion. Figure 4 This is a schematic diagram of the structure of a seat cushion according to an embodiment of this application, wherein the heating device is partially placed inside the seat cushion. The child safety seat also includes: a seat cushion 20, which is detachably mounted on the seat 10; and a heating device 30, which is detachably mounted inside the seat cushion 20. Specifically, the seat cushion 20 is fitted onto the seat 20 and covers the top cover 101. In this embodiment, the side of the seat cushion 20 facing the seat 10 has a receiving space 201, and the heating device 30 is detachably mounted inside the receiving space 201. Specifically, the edge of the heating device 30 may be provided with a positioning recess 301, and the edge of the receiving space may be provided with a positioning protrusion 2011. The heating device 30 is fixed inside the receiving space by the shape matching of the positioning recess and the positioning protrusion. The receiving space 201 is provided with an openable and closable opening 202, through which the heating device 30 is inserted into or removed from the receiving space 201. Optionally, the opening 202 is opened and closed by a zipper device. Those skilled in the art should understand that providing a receiving space 201 on the seat cushion 20 is merely exemplary, and the heating device 30 can also be detachably installed in the seat cushion in other ways, such as by snap-fit ​​connection, magnetic connection, fastener connection, etc., and this application does not limit this.

[0125] refer to Figure 2The heating device 30 includes a heating element 301, a flame-retardant element 302, and a connecting terminal 305. The heating element 301 is disposed within the flame-retardant element 302 and is electrically connected to the connecting terminal 305. In this embodiment, the heating element 301 can be a heating wire made of metal and / or carbon fiber, or a heating mesh made of graphene. Optionally, the heating element 301 can also be a heating sheet, heating rod, etc., which are not limited in this application. In this embodiment, the flame-retardant element 302 is a hollow sheet-like element, and the heating wire is arranged within the sheet-like element. Optionally, the flame-retardant element 302 can also be other suitable shapes, such as strips, rods, etc., which are not limited in this application. The flame-retardant element 302 serves as a carrier for the heating device 30, providing insulation protection for the heating element 301 disposed therein. Furthermore, the flame-retardant element 302 also allows the heat generated by the heating element 301 to be evenly dissipated outward. After the flame-retardant component 302 stops heating, it can continue to evenly dissipate the residual heat from the heating component 301, preventing a rapid drop in seat temperature and thus improving comfort. In this embodiment, the flame-retardant component 302 is made of white fiber. Optionally, the flame-retardant component 302 can also be made of other suitable materials, such as asbestos, and this application does not limit this.

[0126] exist Figure 2 In the illustrated embodiment, the heating device 30 further includes a first temperature measuring device 303, which is disposed on the flame-retardant component 302 and at the heating element 301. The first temperature measuring device 303 is communicatively connected to the control device 40 and is configured to measure the real-time temperature of the heating device 30. Specifically, the first temperature measuring device 303 is a temperature sensor or a temperature detection chip. This temperature sensor is disposed on the flame-retardant component 302 to measure the real-time temperature of the heating device 30. It should be noted that... Figure 2 Although the diagram shows the first temperature measuring device 303 positioned in the middle of the flame-retardant component 302, this is merely exemplary. Those skilled in the art can select the placement of the first temperature measuring device 303 according to actual needs. For example, the first temperature measuring device 303 can be positioned on the upper part of the flame-retardant component 302. Optionally, the first temperature measuring device 303 can also be positioned outside the heating device 30, for example, in the inner part of the seat cushion 20 near the heating component 301, or in the part of the seat 10 near the heating device 30. Optionally, multiple first temperature measuring devices 303 can be provided on the flame-retardant component 302, and the control device 40 can evaluate the real-time temperature of the heating device 30 by measuring the temperatures of the multiple first temperature measuring devices 303.

[0127] exist Figure 2In the illustrated embodiment, the heating device 30 further includes a plurality of heat dissipation holes 304 arranged on the flame-retardant component 302. The heat dissipation holes 304 enhance the heat dissipation capability of the heating device 30, helping to transfer the heat generated by the heating element 301 to the seat cushion 20, and subsequently to the seat 10. Preferably, the plurality of heat dissipation holes 304 are evenly arranged at equal intervals along the extending direction of the heating element 301. It should be noted that... Figure 2 The number and arrangement of the heat dissipation holes 304 shown are exemplary. Those skilled in the art can select the number and arrangement of the heat dissipation holes 304 according to actual needs.

[0128] refer to Figure 1A , Figure 2 and Figure 14 , Figure 14 This is a circuit connection diagram according to one embodiment of the present application. The child safety seat also includes: a control device 40, which is at least partially disposed within the seat 10, and a heating element 301 is electrically connected to the control device 40 via a connection terminal 305. In this embodiment, the control device 40 includes: a control unit 401 (see reference 1). Figure 10 The heating element 30 is installed inside the seat 10 and is electrically connected to the control unit 401. A first temperature measuring device 303 is communicatively connected to the control unit 401. The control unit 401 is configured to control the heating element 301 to stop heating when the temperature measured by the first temperature measuring device 303 reaches a second preset temperature. Optionally, the control unit 401 is further configured to control the heating element 301 to start heating or allow the heating element 301 to continue heating when the temperature measured by the first temperature measuring device 303 is lower than the second preset temperature. Optionally, the second preset temperature is adjustable. Optionally, the control unit 401 is a control circuit board. The location of the control unit 401 will be described in detail later.

[0129] refer to Figure 1A The control device 40 further includes an operation unit 402, which is disposed on the child safety seat and communicatively connected to the control unit 401. The operation unit 402 is configured to adjust the operating state of the heating device 30. Figure 1A In the illustrated embodiment, the operation unit 402 is disposed on the base 70. Optionally, the operation unit 402 can also be disposed at any suitable position on the child safety seat as needed, for example, on the seat 10. The operation unit 402 includes at least one switch for controlling the on and off of the heating element 301. Optionally, the operation unit 402 includes at least a main power switch and a heating switch, the main power switch for controlling the on and off of the control unit 401, and the heating switch for controlling the on and off of the heating element 301.

[0130] refer to Figure 1B, Figure 1B yes Figure 1A A partially enlarged view of section B. In one embodiment, the operating unit 402 includes a power switch 4021, a heating switch 4022, and a fan switch 4023. The power switch 4021 is the main power switch for the child safety seat, used to control the power supply to the control unit 401. The heating switch 4022 is used to control the heating function of the child safety seat. The fan switch 4023 is used to control the ventilation function of the child safety seat. Optionally, the power switch 4021, heating switch 4022, and fan switch 4023 can have the same or different switching methods. Optionally, the switch methods include touch switches, push-button switches, etc.

[0131] Optionally, in one embodiment, the control device 40 further includes a wireless communication module (not shown). The control unit 401 is wirelessly and communicatively connected to an external device via the wireless communication module, the external device being configured to adjust the operating state of the heating device 30. Optionally, the wireless communication module includes a WIFI (Wireless Local Area Network) communication module, a Bluetooth communication module, an NFC (Near Field Communication) communication module, etc. Optionally, the external device includes a smart terminal such as a mobile phone or tablet computer. After the control unit 401 is wirelessly and communicatively connected to the external device via the wireless communication module, the operating parameters of the heating device 30 can be set and the operating state of the heating device 30 can be controlled by application software running on the external device.

[0132] The following describes the operation of the heating device 30 provided in the embodiments of this application, using a Bluetooth communication module and a mobile phone as examples. When the control unit 401 is wirelessly and communicatively connected to the mobile phone via the Bluetooth communication module, the user can use an application running on the mobile phone to set the operating parameters of the heating device 30 and control the operating state of the heating device 30. For example, the user can control the heating element 301 to turn on or off through the application running on the mobile phone. For example, the user can set a second preset temperature through the application running on the mobile phone, for example, to 40°C. Specifically, when the heating element 301 is in the on state, if the temperature measured by the first temperature measuring device 303 is less than 40°C, the control unit 401 allows the heating element 301 to continue heating; if the temperature measured by the first temperature measuring device 303 is greater than or equal to 40°C, the control unit 401 controls the heating element 301 to stop heating. When the heating element 301 is in the off state, if the temperature measured by the first temperature measuring device 303 is less than 40°C, the control unit 401 controls the heating element 301 to start heating.

[0133] refer to Figure 2 and Figure 14The child safety seat also includes a temperature protection device 50, which is disposed on the heating element 30 and configured to stop heating when the heating element 30 reaches a first preset temperature. The maximum value of the second preset temperature is less than the first preset temperature. Specifically, when the heating element 30 is operating, if the temperature of the heating element 30 exceeds the first preset temperature, for example, exceeding 60°C, the temperature protection device 50 will open the circuit, thereby cutting off the electrical circuit of the heating element 301 and stopping the heating element 301 from heating. The temperature protection device 50 is used to prevent the heating element 30 from overheating, which can prevent the heating element 30 or other components of the child safety seat from being damaged by overheating, and can also prevent the child passenger sitting in the child safety seat from being injured by overheating of the seat cushion 20. Figure 14 In the illustrated embodiment, the temperature protection device 50 is disposed between the control device 40 and the heating element 301. However, this is merely exemplary, and those skilled in the art can place the temperature protection device 50 in any suitable position in the circuit as needed, as long as it meets the requirement of cutting off the electrical circuit of the heating element 301 through the temperature protection device 50. Preferably, the temperature protection device 50 is a resettable temperature fuse, which is connected in series in the electrical circuit of the heating element 301. The resettable fuse is defined with a first preset temperature, a resettable temperature, and a resettable time. When the temperature of the heating device 30 exceeds the first preset temperature, the resettable fuse will open the circuit, thereby cutting off the electrical circuit of the heating element 301 and causing the heating element 301 to stop heating; when the temperature of the heating device 30 remains below the resettable temperature for a period exceeding the resettable time, the resettable fuse will restore the conduction of current. Optionally, the temperature protection device 50 can also be a disposable fuse. When the temperature of the heating device 30 exceeds the first preset temperature, the disposable fuse will melt, thereby cutting off the electrical circuit of the heating element 301. Replacing the disposable fuse will restore the conduction of current.

[0134] The temperature protection device 50 can independently disconnect the circuit, which is particularly advantageous in certain extreme situations. For example, in the event of a malfunction in the control device 30, if the heating device 30 exceeds the second preset temperature but the control device 30 fails to stop the heating element 301 from heating, the heating element 301 will continue to heat, causing the temperature of the control device 30 to rise above the first preset temperature. At this point, the temperature protection device 50 will disconnect the circuit, cutting off the electrical circuit of the heating element 301 and stopping the heating element 301, thus achieving the "protection" function.

[0135] refer to Figures 5 to 7 and Figure 14 , Figure 5 This is a schematic perspective view of a seat according to one embodiment of this application; Figure 6 yes Figure 5 The diagram shows a schematic perspective view of the seat, with the top cover removed; Figure 7yes Figure 6 The diagram shows a schematic perspective view of the seat, with the fan removed. In one embodiment, the child safety seat further includes a ventilation device 60 disposed within the seat 10 and electrically connected to a control device 40. The ventilation device 60 is used to create airflow within the seat 10 to reduce the temperature of the seat 10. (Reference) Figure 5 and Figure 6 The seat 10 defines a receiving cavity 102, and a top cover 101 is configured to cover the receiving cavity 102. A ventilation device 60 is disposed within the receiving cavity 102. The ventilation device 60 includes: a first fixing seat 601, which is fixedly disposed in the receiving cavity 102, and an air duct 6011 is formed between the first fixing seat 601 and the top cover 101; and a fan 602, which is fixedly disposed on the first fixing seat 601 and electrically connected to the control device 40. The outlet 6021 of the fan 602 is in fluid communication with the air duct 6011. The ambient temperature air driven by the fan 602 flows through the air duct 6011 and the first vent 1011 of the top cover 101 into the area where the seat cushion 20 is located, so as to reduce the temperature of the seat cushion. In this embodiment, the air duct 6011 formed between the first fixing seat 601 and the top cover 101 defines a ventilation area on the side of the top cover 101 away from the seat cushion 20, and the ventilation area corresponds to at least a portion of the area below the seat cushion 20. The ambient temperature air driven by the fan 602 flows in a concentrated manner in this area and flows out from the first vent 1011 to the seat cushion 20. The airflow gathers in the part of the seat cushion 20 corresponding to the ventilation area, thereby making the cooling more targeted and effective.

[0136] refer to Figure 7 , Figure 9 and Figure 10 , Figure 9 This is a schematic side sectional view of a child safety seat according to an embodiment of this application; Figure 10 yes Figure 9 A partial enlarged view of part A. In one embodiment, the first fixed base 601 is provided with an air inlet 6013 and an air outlet 6014. The air inlet 6013 is in fluid communication with the third vent 120 at the back of the seat 10, and the air outlet 6014 is in fluid communication with the air duct 6011. Optionally, the air inlet 6013 is located in the portion of the first fixed base 601 near the inlet 6022 of the fan 602. Providing the air inlet 6013 can increase the air intake of the fan 602, thereby increasing the amount of air used for cooling and improving the cooling effect. It should be noted that... Figure 7 The number and arrangement of the air inlets 6013 shown are exemplary. Those skilled in the art can select the number and arrangement of the air inlets 6013 according to actual needs, such as the number and arrangement of the inlets 6022 of the fan 602.

[0137] refer to Figure 7 and Figure 8In one embodiment, the air duct 6011 is recessed away from the seat cushion 20 to define a ventilation area on the side of the upper cover 101 opposite to the seat cushion 20, which corresponds to at least a portion of the area below the seat cushion 20. Room temperature air driven by the fan 602 flows concentrated in this area and exits from the first vent 1011 to the seat cushion 20. The airflow concentrates on the portion of the seat cushion 20 corresponding to the ventilation area, thereby making the cooling more targeted and effective. Furthermore, the height of the air duct 6011 in the airflow direction is less than the height of the air outlet 6014, thus requiring less space for the air duct 6011, resulting in a smaller space occupied by the first fixed seat 601 and a more compact overall structure of the seat 10. Furthermore, the cross-sectional area of ​​the air duct 6011 in the airflow direction is larger than the cross-sectional area of ​​the air outlet 6014, reducing the airflow velocity entering the air duct 6011 and increasing the pressure on the surrounding environment, thereby improving gas exchange capacity and enhancing the cooling effect.

[0138] The first fixed base 601 further includes a first guide rib 6012, which is disposed at one end of the first fixed base 601 near the air outlet 6014. The first guide rib 6012 defines a first guide space 60121 between the air outlet 6014 and the air duct 6012. The first guide space 60121 is configured such that its cross-sectional area gradually increases along the direction from the air outlet 6014 to the air duct 6011. This reduces the airflow velocity through the first guide space 60121, increases the pressure on the surrounding environment, thereby improving gas exchange capacity and enhancing the cooling effect. Furthermore, the guide space 60121 defined by the first guide rib 6012 guides the airflow exiting the outlet 6021, directing the airflow as far as possible towards the air duct 6011 for cooling the portion of the seat cushion 20 corresponding to the ventilation area. Therefore, the first guide rib 6012 improves airflow utilization and further enhances the cooling effect. (Reference) Figure 8 In one embodiment, the ventilation device 60 further includes a second temperature measuring device 603 disposed on the upper cover 101 and communicatively connected to the control device 40. The second temperature measuring device 603 is configured to measure the real-time temperature of the seat 10. Specifically, the second temperature measuring device 603 is a temperature sensor. This temperature sensor is disposed in the upper cover 101 to measure the real-time temperature of the upper cover 101 and the vicinity of the seat cushion 20. It should be noted that... Figure 8Although the second temperature measuring device 603 is shown positioned in the center of the upper cover 101 and has an elongated shape, this is merely exemplary. Those skilled in the art can choose the placement and shape of the second temperature measuring device 603 according to actual needs. For example, the second temperature measuring device 603 can be positioned on the side of the upper cover. Optionally, the second temperature measuring device 603 can be configured in other shapes, such as circular or rectangular. Optionally, multiple second temperature measuring devices 603 can be provided on the upper cover 101, and the control device 40 can assess the real-time temperature near the current seat cushion 20 by measuring the temperature of the multiple second temperature measuring devices 603.

[0139] In one embodiment, fan 602 is electrically connected to control unit 401. Second temperature measuring device 603 is communicatively connected to control unit 401. Control unit 401 is configured to: control fan 602 to stop ventilation when the temperature measured by second temperature measuring device 603 is lower than a third preset temperature; and / or control fan 602 to start ventilation or allow fan to continue ventilation when the temperature measured by second temperature measuring device 603 reaches the third preset temperature.

[0140] Combination Figure 1A and Figure 8 The operating unit 402 is configured to adjust the operating state of the ventilation device 60. Figure 8 In the illustrated embodiment, the position of the operation unit 402 can be... Figure 1A The illustrated embodiment is similar. The operation unit 402 includes at least one switch for controlling the on and off of the fan 602. Optionally, the operation unit 402 includes a ventilation switch for controlling the on and off of the fan 602.

[0141] Optionally, in Figure 8 In the illustrated embodiment, the control unit 401 further includes a wireless communication module. This wireless communication module can communicate with... Figure 1A The wireless communication module in the illustrated embodiment is similar. After the control unit 401 is wirelessly and communicatively connected to an external device via the wireless communication module, the operating parameters of the ventilation device 60 can be set and the operating status of the ventilation device 60 can be controlled by the application software running on the external device.

[0142] The operation of the ventilation device 60 provided in this application embodiment will be described below using a Bluetooth communication module and a mobile phone as examples. When the control unit 401 is wirelessly and communicatively connected to the mobile phone via the Bluetooth communication module, the user can use an application running on the mobile phone to set the operating parameters of the ventilation device 60 and control the operating state of the ventilation device 60. For example, the user can control the ventilation device 60 to turn on or off through the application running on the mobile phone. For example, the user can set a third preset temperature through the application running on the mobile phone, for example, to 30°C. Specifically, when the fan 602 is on, if the temperature measured by the second temperature measuring device 603 is less than 30°C, the control unit 401 controls the fan 602 to turn off; if the temperature measured by the second temperature measuring device 603 is greater than or equal to 30°C, the control unit 401 allows the fan 602 to continue running; when the fan 602 is off, if the temperature measured by the first temperature measuring device 303 is greater than or equal to 30°C, the control unit 401 controls the fan 602 to start.

[0143] refer to Figure 9 and Figure 10 In one embodiment, a second fixing seat 103 is also provided in the receiving cavity 102. The second fixing seat 103 is fixedly connected to the side of the first fixing seat 601 opposite to the upper cover 101. A seat belt guide groove 1031 is defined between the second fixing seat 103 and the first fixing seat 601. Specifically, the seat belt guide groove 1031 is adapted to allow the seat belt to pass through it. On the one hand, the seat belt guide groove 1031 provides a passage path for the seat belt, facilitating the layout of the seat belt in the child safety seat; on the other hand, the seat belt guide groove 1031, together with the seat belt passing through it, isolates the air duct 6011 above the seat belt guide groove 1031 from the components below the seat belt guide groove 1031, so as to ensure the safe operation of the components below the seat belt guide groove 1031, which will be further described below.

[0144] refer to Figures 11 to 13In one embodiment, the first fixing base 601 further includes a second guide rib 6015, which is disposed at the end of the first fixing base 601 away from the air outlet 6014. The second guide rib 6015 defines a second guide space 60151 in the air duct 6011. The second guide space 60151 is configured such that its cross-sectional area gradually decreases along the direction from the air outlet 6014 to the air duct 6011, thereby reducing the airflow velocity through the second guide space 60151 and increasing the pressure on the surrounding environment, thereby improving the gas exchange capacity and enhancing the cooling effect. Specifically, the second guide rib 6015 has a U-shaped structure and is disposed at a position opposite to the air outlet 6014. The U-shaped portion of the second guide rib 6015 communicates with the seat belt guide groove 1031. After passing through the seat belt guide groove 1031, the seat belt (crotch strap) passes through the U-shaped portion of the second guide rib 6015 and then further through the crotch strap opening of the upper cover 101. This prevents excessive bending angle between the seat belt guide groove 1031 and the crotch strap opening. A lower cover 104 is also provided in the receiving cavity 102, connected to the side of the second fixing seat 103 opposite to the first fixing seat 601. The lower cover 104 and the second fixing seat 103 define an installation space 1041, in which the control unit 401 is fixedly disposed. In this embodiment, the side of the second fixing seat 103 opposite to the first fixing seat 601 extends in a direction opposite to the first fixing seat 601, forming a hollow structure. The lower cover 104 and the hollow structure together define the installation space 1041. The control unit 401 is fixedly disposed on the lower cover 104 to be accommodated in the installation space 1041. Optionally, the control unit 401 is a control circuit board. In this embodiment, the fan 602 and the air duct 6011 are disposed above the seat belt guide groove 1031, and the control unit 401 is disposed in the mounting space 1041 below the seat belt guide groove 1031. Thus, the seat belt guide groove 1031, together with the seat belt passing through it, isolates the air duct 6011 above the seat belt guide groove 1031 from the control unit 401 disposed in the mounting space 1041 below the seat belt guide groove 1031, preventing other components of the child safety seat or foreign objects in the air drawn in by the fan 602 from contacting the control unit 401 and causing damage to it.

[0145] refer to Figure 15 , Figure 17 and Figure 19 In one embodiment, a child safety seat is also provided, including: a seat 10, which includes a cover 101; a plurality of fans 602; and a plurality of air guides 604. The plurality of air guides 604 are in fluid communication with the plurality of fans 602. Airflow is created inside the seat 10 by the fans 602 and the air guides 604 to reduce the temperature of the seat 10 and provide a comfortable user experience.

[0146] refer to Figure 20 and Figure 21 In one embodiment, the air guide 604 is provided with a hollow air duct 6011 and a plurality of second vents 6044. The second vents 6044 are at least located on the side facing the upper cover 101 and are in fluid communication with the air duct 6011. The fan 602 drives air through the air duct 6011 of the air guide 604 and out through the second vents 6044, and the flowing air can reduce the temperature in the area near the upper cover 101 of the seat 10. The air guide 604 and the air duct 6011 are substantially straight along the front-rear direction of the seat 10 to reduce noise caused by large-angle bends in the air duct.

[0147] refer to Figure 17 and Figure 19 In one embodiment, multiple air guides 604 are respectively located on both sides of the upper cover 101, forming a groove 6045 with the upper cover 101. Those skilled in the art will understand that the combination of multiple independent air guides and multiple fans can effectively reduce fan operation and duct noise while ensuring the airflow pressure at the outlet. Arranging multiple air guides 604 on both sides of the upper cover maximizes the contact surface while ensuring the outlet air pressure, thereby improving heat dissipation efficiency. In this embodiment, there are two air guides 604, each connected to one fan. The air ducts of the two air guides 604 are independent of each other to avoid interference between the fans and loss of air pressure. The fan is connected to the front end of the air guide 604, i.e., the end away from the seat back; the supporting rib 6041 is located at the rear end of the air guide 604, i.e., the end closer to the seat back. Figure 17 The approximate area of ​​the recess 6045 is illustrated by a dashed line. Specifically, the opposing edges of the air guides 604 located on either side of the upper cover 101, together with the upper cover 101, define the recess 6045. The recess 6045 is adapted to provide guidance and accommodation space for the seat belt of a child safety seat. (Refer to reference...) Figure 15 and Figure 17 , Figure 15 An exemplary configuration is shown where the seat belt of a child safety seat is exposed in seat 10. Figure 17The structure of the child safety seat's seat belt located on the back side of the cover 101 (inside the seat 10) is illustrated by dashed lines. For example, the seat belt includes a shoulder strap 81, a lap belt 82, a crotch strap 83, and a buckle 85, wherein the shoulder strap 81, lap belt 82, and crotch strap 83 can be locked by the buckle (e.g., a five-point buckle) 85. The shoulder strap 81 passes through a seat belt hole located on the back 11 of the seat 10, enters the back side of the cover 101 (i.e., into the interior of the seat 10), passes through a groove 6045, and exits through a through-hole 1015 provided in the cover 101, so that the end of the shoulder strap 81 protrudes from the cover 101. The end of the shoulder strap 81 protruding from the cover 101 forms a length adjustment strap 84, which the user can pull to adjust the length of the shoulder strap 81. In this embodiment, the groove 6045 provides at least a limiting and guiding function for the shoulder strap 81. The through-hole 1015 communicates with the groove 6045. Preferably, the through hole 1015 is provided at the front end of the seat portion 12 of the seat 10, and the fans 602 are spaced apart from each other with a guide gap, the width of which is smaller than the width of the groove 6045. The length adjustment belt 84 passes through the gap of the fans 602 and then through the through hole 1015.

[0148] refer to Figure 19 and Figure 20 In one embodiment, the child safety seat further includes a fixing plate 605, which is fixedly connected to at least two of a plurality of air guides 604. The fixing plate 605 and the recess 6045 form a channel 6051. Specifically, the fixing plate 605 covers the side of the recess 6045 away from the upper cover 101 to form the channel 6051 together with the recess 6045. The area of ​​the channel 6051 is substantially the same as the area of ​​the recess 6045 (e.g., for...). Figure 17 (The area between the midpoint and the dashed line). In this embodiment, channel 6051 extends from the top of the seat back of seat 10 to the through hole 1015 located at the front end of seat 10, and the through hole 1015 communicates with channel 6051. By forming channel 6051, the shoulder strap 81, which is limited and guided in groove 6045, can be prevented from accidentally contacting other components inside seat 10, ensuring smooth guidance of shoulder strap 81. It should be noted that guiding shoulder strap 81 through groove 6045 or channel 6051 is only exemplary. Other parts of the seat belt, such as crotch strap, lap belt, power cable, etc., can also be guided through groove 6045 or channel 6051. This application does not limit this.

[0149] refer to Figure 20In one embodiment, a guide portion 6046 is provided at one end of the fixing plate 605 in the vertical direction. This guide portion 6046 is adapted to cooperate with the upper cover 101 to form a guide opening for the seat belt. Preferably, guide portions 6046 are provided at both ends of the fixing plate 605 in the vertical direction. Optionally, the guide portion 6046 is a plate-shaped structure that protrudes from the edge of the fixing plate 605 in the vertical direction toward a direction away from the fixing plate 605.

[0150] refer to Figures 19 to 21 In one embodiment, the fixing plate 605 extends from the backrest 11 of the seat 10 to the seat portion 12 of the seat 10, and the fixing plate 605 includes a backrest section 6055, a seat portion 6056, and a connecting section 6057. The backrest section 6055 is disposed, for example, on the backrest 11 of the seat 10. The seat portion 6056 is disposed, for example, on the seat portion 12 of the seat 10. The connecting section 6057 connects the backrest section 6055 and the seat portion 6056. Optionally, the shape of the connecting section 6057 matches the shape of a corresponding portion of the upper cover 101. Preferably, the connecting section 6057 is arc-shaped. Optionally, the air guide 604 is configured as an elongated structure and extends from the backrest of the seat 10 to the seat portion of the seat 10. The elongated air guide 604 can, on the one hand, ensure the air pressure of the flowing air in the air duct 6011, and on the other hand, cover the area from the backrest 11 to the seat portion 12 of the seat 10 as much as possible, so as to increase the area of ​​the heat dissipation area and optimize the heat dissipation effect. Furthermore, the curvature of the air guide 604 is less than 90 degrees to reduce the loss of the passing airflow and increase the outlet air pressure at the vent (e.g., the second vent 6044, vent opening 1019).

[0151] refer to Figure 17 and Figure 18In one embodiment, the air guide 604 is provided with a support rib 6041, and the upper cover 101 is provided with a first rib 1016 extending vertically. A support hole 1012 is provided on the side wall of the first rib 1016. The support rib 6041 is inserted into the support hole 1012 to fix it to the upper cover 101, improving the space utilization in the height direction. Furthermore, since resonance may occur between multiple independent air guides, potentially causing the fixing screws to loosen, the insertion fixing method can improve the anti-resonance capability of the air guide and enhance the stability of the fixed connection. Optionally, one end of the support rib 6041 extending from the support hole 1012 has an air outlet 1013. The air outlet 1013 is in fluid communication with the air duct 6011. By providing the air outlet 1013, the flowing air in the air duct 6011 flows out through the air outlet 1013, thereby reducing the temperature of the area of ​​the upper cover 101 near the air outlet 1013 and improving the heat dissipation effect. Optionally, the upper cover 101 is further provided with a second rib 1017 extending horizontally, and the first rib 1016 and the second rib 1017 form a reinforcing groove 1018 in the upper cover 101. In the reinforcing groove 1018, the first rib 1016 and the second rib 1017 intersect each other to form a cavity structure. The reinforcing groove 1018 is also provided with a ventilation opening 1019, and the air vent 1013 is in fluid communication with the upper cover 101 through the ventilation opening 1019. In this embodiment, on the one hand, the structural strength near the bearing hole 1012 is strengthened by forming the reinforcing groove 1018 to ensure the support of the bearing rib 6041; on the other hand, the cavity structure in the reinforcing groove 1018 increases the air outlet area, making the empty space near the air vent 1013 larger and the air flow resistance smaller. In some embodiments, at least a portion of the vents (e.g., the second vent 6044, the vent opening 1019) are arranged on the two wings adjacent to the seat 10 to ensure that the vents are not completely covered by the baby's buttocks, thereby improving the efficiency of airflow.

[0152] refer to Figure 17 and Figure 18 In one embodiment, the upper cover 101 is provided with a plurality of first vent holes 1011 located above the air guides 604 and air holes 1014 located above the grooves between the air guides 604. Optionally, the first vent holes 1011 and the second vent holes 6044 of the air guides 604 are arranged overlappingly, so that the flowing air in the air duct 6011 can flow out to the upper surface of the upper cover 101, and the hot air on the upper surface of the upper cover 101 can flow into the air holes 1014 above the grooves to enhance the heat dissipation effect. In some embodiments, refer to Figure 20The left-side air guide 604 discharges air towards the upper surface of the cover 101 through the first vent 1011, while the right-side air guide 604 draws air from the upper surface of the cover 101 through the first vent 1011. In some other embodiments (not shown), the left and right sides of the seat are each provided with two or more air guides. Among the multiple air guides on the left side, some air guides discharge air towards the upper surface of the cover through the first vent, while others draw air from the upper surface of the cover through the first vent, thus forming an airflow circulation system on the left side. Similarly, among the multiple air guides on the right side, some air guides discharge air towards the upper surface of the cover through the first vent, while others draw air from the upper surface of the cover through the first vent, thus forming an airflow circulation system on the right side.

[0153] refer to Figures 20 to 22 In one embodiment, the air guide 604 includes an upper air duct cover 6042 and a lower air duct cover 6043, which are interlocked to form an air duct 6011. The upper air duct cover 6042 is disposed on the side of the air guide 604 near the upper cover 101, and a second vent 6044 is disposed on the upper air duct cover 6042. The lower air duct cover 6043 is disposed on the side of the air guide 604 away from the upper cover 101. A fan 602 is fixedly connected to the upper air duct cover 6042, and the upper air duct cover 6042 is fixedly connected to the upper cover 101. Optionally, a first mounting portion 60432 is provided at the end of the upper air duct cover 6042 away from the fan 602, and the upper air duct cover 6042 is fixedly connected to the upper cover 101 through the first mounting portion 60432. Specifically, the first mounting part 60432 is provided with screw holes, and the air duct cover 6042 is fixedly connected to the cover 101 by screws inserted into the screw holes.

[0154] In one embodiment, the upper cover 6042 and the lower cover 6043 of the air duct are fastened together by a snap-fit ​​mechanism. Specifically, refer to... Figure 21 The side edge of the upper cover 6042 includes a first engaging member 60421, and the side edge of the lower cover 6043 includes a second engaging member 60431. When the lower cover 6043 and the upper cover 6042 are fastened together, the first engaging member 60421 and the second engaging member 60431 engage to fix the lower cover 6043 and the upper cover 6042 together. Optionally, one of the first engaging member 60421 and the second engaging member 60431 is a latching protrusion, and the other is a latching ring. Those skilled in the art should understand that the fastening of the upper cover 6042 and the lower cover 6043 by the engaging members is merely exemplary, and the upper cover 6042 and the lower cover 6043 can also be fastened together by other suitable means, such as snap fastener connection, magnetic connection, heat fusion, etc.

[0155] refer to Figure 20 and Figure 21In one embodiment, a fixing plate 605 is disposed inside the upper cover 101 and covers at least a portion of the lower duct cover 6043. Optionally, the side edge of the fixing plate 605 is provided with an extension 6052, which covers and supports the lower duct cover 6043. In one embodiment, the upper duct cover 6042 is provided with a fan mounting portion 60422, the shape of which is adapted to the shape of the fan 602, and the housing of the fan 602 is fixedly connected to the fan mounting portion 60422. Optionally, the fan mounting portion 60422 forms part of the housing of the fan 602. Optionally, the fan 602 is provided with a second mounting portion 60423, through which the fan 602 is fixedly connected to the upper cover 101. Specifically, the second mounting portion 60423 is provided with a screw hole, through which the fan 602 is fixedly connected to the upper cover 101 by a screw inserted into the screw hole.

[0156] refer to Figure 19 and Figure 20 In one embodiment, fan 602 includes an inlet 6022 and an outlet 6021, wherein the outlet 6021 of fan 602 is in fluid communication with one end of air guide 604 to be in fluid communication with air duct 6011. Optionally, the inlets 6022 of each fan 602 may be configured to have the same orientation, for example, in Figure 20 In the illustrated embodiment, the inlets 6022 of both fans 602 face the upper cover 101. Optionally, the inlets 6022 of each fan 602 can be configured to have different orientations; for example, in other embodiments, one fan 602's inlet 6022 faces the upper cover 101, and the other fan 602's inlet 6022 faces the interior of the seat 10. In embodiments where the inlets 6022 of each fan 602 are configured to have different orientations, multiple fans 602 can use fans of the same model (fans 602's inlets 6022 have the same orientation), reducing the number of components and lowering production costs. In this embodiment, both fans 602 are used to blow air towards the air duct 6011. In some embodiments, both fans 602 are used to draw air from the air duct 6011; in still other embodiments, one fan 602 blows air towards the air duct 6011, and the other fan 602 draws air from the air duct 6011.

[0157] refer to Figures 23 to 25 In one embodiment, the child safety seat further includes a control device 40. The control device 40 includes a control unit 401 and an operating unit 402. The control unit 401 is disposed on a mounting plate 605, and a fan 602 is electrically connected to the control unit 401. The operating unit 402 is disposed on the seat 10 and communicatively connected to the control unit 401, and the operating unit 402 is configured to adjust the operating state of the fan 602. Optionally, referring to… Figure 16The operating unit 402 is a controller mounted on the base 70. This controller includes: a power switch 4021, a first indicator light 4024, a first seat angle adjustment button 4026, a second seat angle adjustment button 4027, a first fan on button 4028, and a first fan off button 4029. Optionally, the child safety seat may also include a wireless communication module. The control unit 401 is wirelessly and communicatively connected to an external device via the wireless communication module. The external device is configured to adjust the operating status of the fan 602. Optionally, the external device may be a remote control 90, for example, such as... Figure 25 As shown, the remote control 9 includes, for example, a second indicator light 901, a third seat angle adjustment button 902, a second fan on button 903, a second fan off button 904, and a fourth seat angle adjustment button 905.

[0158] Optionally, refer to Figure 24 A receiving box 6053 and a cover 6054 are provided on the side of the connecting section 6057 of the fixing plate 605 away from the upper cover 101. The control unit 401 is fixedly installed in the receiving box 6053, and the cover 6054 is detachably fixed to the receiving box 6053 to close the receiving box 6053.

[0159] Please refer to the above. Figures 26A to 27 According to one embodiment of this application, a child safety seat is also provided. The child safety seat includes a seat 10 and a support cushion assembly 13. Figure 26A As shown, seat 10 includes a cover 101. The cover 101 has ventilation holes 130. The support cushion assembly is a car seat accessory designed specifically for smaller children, used to adjust the seating space of seat 10. When a child is small, the support cushion assembly can be installed on the child car seat to allow the child to maintain a correct sitting posture (see...). Figure 26B As children grow larger, the support pad assembly can be removed from the child safety seat, allowing the child to sit directly in the seat. The support pad assembly is typically filled with thick foam or other foam materials to protect the head, neck, and spine of young children. However, the support pad assembly can obstruct the ventilation holes in the seat cover, reducing heat dissipation and thus affecting seating comfort.

[0160] Combination Figure 26A , Figures 32 to 34According to one embodiment of this application, the child safety seat includes a seat 10 and further includes an air guide 604 disposed below a cover 101. The air guide 604 has a hollow air duct 6011 and an air outlet 6047. The air outlet 6047 is disposed on the side of the air guide 604 facing the cover 101 and is in fluid communication with the air duct 6011. The air outlet 6047 is inserted into a ventilation hole 130, thereby allowing gas in the air duct 6011 to flow to the upper surface of the cover 101. A support pad assembly 13 is detachably mounted on the upper surface of the cover 101.

[0161] Please refer to the above. Figures 28A to 29 In one embodiment of this application, the support pad assembly 13 includes a cavity 134 formed inside the support pad assembly 13 and a vent 1331 fluidly communicating with the cavity 134. The vent 1331 is fluidly connected to an air outlet 6047. Thus, gas exchange is allowed between the air duct 6011 of the air guide 604 and the cavity 134 of the support pad assembly 13. In actual use, the gas exchange between the air duct 6011 and the cavity 134 removes heat from the support pad assembly 13, thereby reducing the temperature of the support pad assembly 13. Specifically, this embodiment provides two ventilation holes 130, which are respectively located on the left and right sides of the upper cover 101, and each ventilation hole 130 is provided with an air guide 604 below it to provide a relatively uniform heat dissipation effect on the left and right sides of the upper cover 101. Those skilled in the art will understand that the number and location of the ventilation holes 130 and the air guide 604 in this example are merely exemplary, and those skilled in the art can select other suitable numbers and locations for the ventilation holes 130 and the air guide 604 according to actual needs.

[0162] Continue to refer to Figures 28A to 30 In one embodiment of this application, a connector 133 protrudes from the lower part of the support pad assembly 13, and a vent 1331 is formed within the connector 133. When the support pad assembly 13 is installed on the seat 10, the connector 133 is at least partially inserted into the air outlet 6047 to enter the air duct 6011, so that the fan is in fluid communication with the cavity 134 inside the support pad assembly 13. The support pad assembly 13 includes a pad body 131 and a pad core 132. The pad body 131 is provided with a vertically oriented through groove 1311. The pad core 132 is inserted into the through groove 1311. The thickness of the pad core 132 is less than the thickness of the pad body 131. When the pad core 132 is inserted into the through groove 1311, the upper surface of the pad core 132 is slightly lower than the upper surface of the pad body 131, thereby forming a cavity structure on the side of the support pad assembly 13 near the upper cover 101 to improve the heat exchange efficiency of the support pad assembly 13. Figure 28BAs shown, the support pad assembly 13 also includes an outer sleeve that encloses the pad body 131 and the pad core 132, thereby forming a cavity 134 with the outer sleeve and the portion of the through groove 1311 not occupied by the pad core 132. It should be noted that, in order to express the internal features of the support pad assembly 13, [the following text is missing from the original extract]. Figure 28A , Figure 36A The outer casing is omitted. When the support pad assembly 13 is installed on the upper cover 101, a portion of the connector 133 is inserted into the air outlet port 6047 to enter the air duct 6011. At this time, the air duct 6011 and the cavity 134 are fluidly connected through the vent hole 1331 in the connector 133, thereby realizing gas exchange between the air duct 6011 and the cavity 134. Specifically, in this embodiment, two connectors 133 are provided, both of which are located on the bottom side of the support pad assembly 13 and extend perpendicularly to the bottom surface of the support pad assembly 13 in a direction away from the support pad assembly 13. Those skilled in the art will understand that the number and location of the connectors 133 in this example correspond to the number and location of the vent holes 130 and the air guides 604. In other embodiments, those skilled in the art can select other suitable numbers and locations for the connectors 133 based on the number and location of the vent holes 130 and the air guides 604. Furthermore, the connector 133 can also be used as a guide when installing the support pad assembly 13 so that the upper cover 101 can quickly position the support pad assembly 13 in the installation position.

[0163] refer to Figure 28A and Figure 28B In one embodiment of this application, the side of the cushion 131 facing away from the upper cover 101 is an arc-shaped surface, and this arc-shaped surface is provided with a through groove 1311. The cover can cover the outside of the cushion 131. When the user sits on the seat 10, the body is in contact with the cover, resulting in a high level of comfort. The cushion core 132 is made of a breathable material to improve breathability and further enhance seating comfort. In this embodiment, the through groove 1311 is located approximately at the user's buttocks or back, and the cushion core 132 is disposed within the through groove 1311 to provide support and reduce fatigue during long-term sitting. Optionally, the portion of the cover corresponding to the through groove can be made of a more breathable material or structure, such as mesh fabric, to further improve the breathability of that area and provide a better seating experience. In this embodiment, the cushion 131 and the cushion core 132 are separately provided, and the user can replace the cushion core 132 with different properties (e.g., material, hardness, etc.) according to actual needs. In other embodiments, the pad 131 and the pad core 132 can also be integrally molded, improving installation convenience. Optionally, such as Figure 26B As shown, a seat cushion 135 can also be mounted on the upper surface of the support cushion assembly 13, for example, to improve riding comfort or to suit younger infants. Figure 28BAs shown, in one embodiment, the seat cushion 135 can be detachably connected to the support cushion assembly 13, for example, via a fastener such as a button or Velcro; in other embodiments, the seat cushion 135 can also be designed as an integral part of the support cushion assembly 13.

[0164] Please refer to the above. Figures 32 to 34 In one embodiment of this application, the air guide 604 includes an upper air duct cover 6042 and a lower air duct cover 6043 that are interlocked with each other, forming an air duct 6011 between the upper air duct cover 6042 and the lower air duct cover 6043. Compared with the air guide 604 in the previous embodiment, the air guide 604 in this embodiment is further provided with a protruding air outlet port 6047 on the side facing the upper cover 101, which is inserted into the ventilation hole 130 of the upper cover 101.

[0165] Combination Figure 30 and Figure 33In one embodiment of this application, a fan 602 is provided at one end of the air guide 604, and the fan 602 is in fluid communication with the air duct 6011 of the air guide 604. The rotation of the fan 602 generates the power for airflow within the air duct 6011. A plurality of second vent holes 6044 are provided at the upper part of the air guide 604, and a ventilation hole 130 is located between the fan 602 and the second vent holes 6044. The connector 133 includes, for example, a windward portion 1332 facing the fan 602 and a wind-blocking portion 1333 facing away from the fan 602. The windward portion 1332 is configured to be in fluid communication with the ventilation hole (1331). Specifically, the windward portion 1332 is provided with an opening 13321, which is in fluid communication with the ventilation hole 1331. The wind-blocking portion 1333 is configured to block the fluid communication between the fan 602 and the ventilation hole 130. Specifically, the wind deflector 1333 obstructs airflow in the portion of the air duct 6011 away from the fan 602 and the wind deflector 1333. Thus, when the support cushion assembly 13 is installed on the seat 10, the connector 133 blocks the air duct between the fan 602 and the second vent 6044. Only a very small portion (or almost none) of the airflow generated by the fan 602 flows out of the air duct 6011 through the second vent 6044; the vast majority (or almost all) enters the cavity of the support cushion assembly 13 through the opening 13321 of the wind deflector 1332, and finally exchanges air with the outside environment of the child safety seat through the micropores in the outer material. In this way, the airflow generated by the fan 602 is used to maximize the removal of heat from the support cushion assembly 13, thereby optimizing the effect of reducing the temperature of the support cushion assembly 13. Optionally, the end of the connector 133 inserted into the ventilation hole 130 away from the support pad assembly 13 contacts the inner wall of the air guide 604 on the side opposite to the ventilation hole 130, so as to improve the obstruction effect of the windproof part 1333 on the airflow, further optimize the effect of reducing the temperature of the support pad assembly 13, and improve the riding comfort of smaller children.

[0166] refer to Figure 31A and Figure 31BIn one embodiment of this application, the seat 10 further includes a shield 140, which is disposed on, for example, the upper surface of the cover 101 or the seat fabric, to cover a portion of the upper surface of the cover 101. For example, the shield 140 may cover the ventilation hole 130. Optionally, the shield 140 is provided with a plug 141, which closes the ventilation hole 130 when the shield 140 covers it. Optionally, the plug 141 has a plug-like structure to embed and close the ventilation hole 130. When the support pad assembly 13 is not installed, the fan 602 is connected to the second ventilation hole 6044 via the air duct 6011. By closing the ventilation hole 130 with the shield 140 and the plug 141, airflow into and out of the ventilation hole 130 can be prevented, increasing the airflow at the second ventilation hole 6044 and improving the seating comfort for smaller children. In addition, the opening area of ​​the ventilation hole 130 is larger than the opening area of ​​the second ventilation hole 6044.

[0167] Optionally, in one embodiment according to this application, the screen 140 is part of the seat fabric covering the seat 10, and the screen 140 is pivotable relative to the rest of the seat fabric. Specifically, the screen 140 is, for example, generally rectangular, and the screen 140 is pivotable about one of its long edges. In this way, the screen 140 can pivot between an open position and a closed position. In the open position, the plug 141 does not close the vent 130, allowing the vent 1331 to be in fluid communication with the air outlet 6047. The screen 140 is part of the seat fabric, therefore, the screen 140 is always located on the cover 101 and there is no concern about it being lost. Optionally, the screen 140 uses the same material as the rest of the seat fabric to reduce any foreign body sensation for the occupant.

[0168] refer to Figure 35A and Figure 35B In one embodiment according to this application, the connector 133 is a cover plate pivotally disposed within the air duct 6011. Specifically, the cover plate is pivotally connected to the upper cover 6042 of the air duct, and pivoting the cover plate can change the opening degree of the air outlet 6047, thereby adjusting the ventilation flow. Specifically, when the cover plate is rotated to completely block the air outlet 6047, the cover plate reaches a first position. For example, refer to... Figure 35B With the cover in the first position, it completely blocks the air outlet 6047. At this point, airflow cannot pass through the air outlet 6047, thus isolating gas exchange between the support pad assembly 13 and the air duct 6011. The airflow then flows primarily within the air duct 6011. In actual use, generally, if the support pad assembly 13 does not need to be installed or if ventilation and heat dissipation for the support pad assembly 13 is not required, the cover is pivoted to the first position. (Continue to refer to...) Figure 35AWhen the cover plate is pivoted to the second position, it completely blocks the air duct 6011. At this time, airflow is allowed through the air outlet 6047, thereby allowing gas exchange between the support pad assembly 13 and the air duct 6011, and the airflow in the air duct 6011 is obstructed by the cover plate. In actual use, generally, if ventilation and heat dissipation are required from the support pad assembly 13, the cover plate is pivoted to the second position.

[0169] In another embodiment according to this application, the cover plate may also be disposed within the ventilation hole 130. For example, the cover plate may be pivotally connected to the sidewall of the ventilation hole 130, such that the cover plate can pivot between a first position blocking the ventilation hole 130 and a second position blocking the air duct 6011. Specifically, when the cover plate is pivoted to the first position, the cover plate blocks the ventilation hole 130. At this time, airflow cannot pass through the ventilation hole 130, thereby isolating the gas exchange between the support pad assembly 13 and the air duct 6011, and the airflow flows substantially within the air duct 6011. In practical use, generally, if it is not necessary to install the support pad assembly 13 or to provide ventilation and heat dissipation for the support pad assembly 13, the cover plate is pivoted to the first position. When the cover plate is pivoted to the second position, it enters the air duct 6011 through the air outlet 6047 and completely blocks the air duct 6011. At this time, airflow is allowed through the ventilation hole 130, thereby allowing gas exchange between the support pad assembly 13 and the air duct 6011, and the airflow in the air duct 6011 is obstructed by the cover plate. In actual use, generally, if ventilation and heat dissipation of the support pad assembly 13 are required, the cover plate is pivoted to the second position.

[0170] refer to Figure 36A and Figure 36B According to one embodiment of this application, a support pad assembly 13 is also provided, which is... Figures 26A to 35B Compared to the support pad assembly 13 in the illustrated embodiment, the support pad assembly 13 in this embodiment has two through slots 1311 spaced apart from each other. A pad core 132 is disposed within each of the two through slots 1311, forming a cavity 134. Each cavity 134 is in fluid communication with at least one ventilation hole 1331. In this embodiment, the two through slots 1311 in the support pad assembly 13 are spaced apart and not interconnected, thereby avoiding the following situation: the airflow generated by the fans 602 of the two air guides 604 affects each other, for example, generating eddies, which weakens the gas flow within the through slots 1311, thereby reducing the heat dissipation effect on the support pad assembly 13.

[0171] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0172] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A child safety seat, characterized in that, include: Seats; The control device is located inside the seat; A ventilation device is provided inside the seat and is electrically connected to the control device; The top cover has a first vent. and The receiving cavity is covered by the upper cover. The ventilation device is disposed within the receiving cavity, and the ventilation device includes: A first fixing seat is fixedly disposed in the receiving cavity, and an air duct is formed between the first fixing seat and the upper cover; and The fan is fixedly mounted on the first mounting base and is electrically connected to the control device. The first fixed base is provided with an air inlet and an air outlet. The air inlet is in fluid communication with a third vent at the back of the seat, and the air outlet is in fluid communication with the air duct. The first fixing base further includes a guide rib, which is disposed at the end of the first fixing base away from the air outlet. The guide rib has a U-shaped structure and is disposed at a position opposite to the air outlet.

2. The child safety seat according to claim 1, characterized in that, The seat also includes a crotch strap and a seat belt guide; The U-shaped structure of the guide rib is in communication with the seat belt guide groove. After the crotch strap passes through the seat belt guide groove, it passes through the U-shaped structure and then through the crotch strap opening of the upper cover.

3. The child safety seat according to claim 1, characterized in that, The guide rib defines a guide space in the air duct, and the guide space is configured such that the cross-sectional area of ​​the guide space gradually decreases along the direction from the air outlet to the air duct.

4. The child safety seat according to claim 1, characterized in that, The ventilation device further includes: a second fixing seat disposed within the receiving cavity, the second fixing seat being fixedly connected to the side of the first fixing seat opposite to the upper cover, and a seat belt guide groove being defined between the second fixing seat and the first fixing seat.

5. The child safety seat according to claim 1, characterized in that, The height of the air duct in the airflow direction is less than the height of the air outlet, and the cross-sectional area of ​​the air duct in the airflow direction is greater than the cross-sectional area of ​​the air outlet.

6. The child safety seat according to any one of claims 1 to 5, characterized in that, Also includes: Seat cushion, which is placed on the seat; A heating device is detachably installed inside the seat cushion; The heating device is electrically connected to the control device; A first temperature measuring device, disposed on the seat cushion and communicatively connected to the control device, is configured to measure the real-time temperature of the heating device; and A temperature protection device is provided on the heating device and configured to stop heating when the heating device reaches a first preset temperature. The heating device includes a heating element, wherein the temperature protection device is connected in series with the heating element, the first temperature measuring device is a temperature detection chip, and the temperature protection device is a resettable temperature fuse.

7. The child safety seat according to claim 6, characterized in that, The heating device further includes: a flame-retardant component, the heating element being disposed within the flame-retardant component, the first temperature measuring device being disposed on the flame-retardant component, and the temperature protection device being disposed at the heating element; and Heat dissipation holes are arranged on the flame-retardant component. The seat cushion has a bag-shaped storage space, and the heating device is detachably installed in the storage space of the seat cushion. The storage space has an openable and closable opening.

8. The child safety seat according to claim 7, characterized in that, The heating device has a positioning recess on its edge, and the accommodating space has a positioning protrusion on its edge. The heating device is fixed in the accommodating space by the shape matching of the positioning recess and the positioning protrusion.

9. The child safety seat according to claim 6, characterized in that, The control device includes: A control unit is disposed within the seat, and the heating device is electrically connected to the control unit. The first temperature measuring device is communicatively connected to the control unit, and the control unit is configured as follows: When the temperature measured by the first temperature measuring device reaches the second preset temperature, the control unit controls the heating element to stop heating; and / or When the temperature measured by the first temperature measuring device is lower than the second preset temperature, the control unit controls the heating element to start heating or allows the heating element to continue heating. The first preset temperature is not adjustable by the user, the second preset temperature is adjustable by the user, and the maximum value of the second preset temperature is less than the first preset temperature.

10. The child safety seat according to claim 6, characterized in that, The seat cushion is mounted on the upper cover.

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