Child safety seat

Abstract

The present application relates to a child safety seat comprising: a seat comprising an upper cover; a plurality of fans; each air guide piece is provided with a hollow air channel and a plurality of vent holes, and the vent holes are formed in the side facing the upper cover and are in fluid communication with the air channel. The multiple air guide pieces are in fluid communication with the multiple fans respectively, the multiple air guide pieces are located on the two transverse sides of the upper cover at intervals respectively, and the multiple air guide pieces and the upper cover form a groove.

Description

Technical Field

[0001] This application relates to the technical field of children's products, and particularly to a child safety seat. Background Art

[0002] Child safety seats are widely used to ensure the safety of child passengers in vehicles. When the temperature inside the vehicle is low, such as in winter, the temperature of the child safety seat is also relatively low, resulting in poor riding comfort of the child safety seat. In extreme cases, it may even cause the children sitting on it to catch a cold. When the temperature inside the vehicle is high, such as in summer, the temperature of the child safety seat is also relatively high, which also leads to poor riding comfort of the child safety seat. Further, due to the safety design of the child safety seat, the child safety seat has a relatively strong wrapping effect on the children sitting on it, which to a certain extent affects heat dissipation and exacerbates the decline in comfort caused by high temperature. Summary of the Invention

[0003] Based on this, it is necessary to provide a child safety seat that can heat the child safety seat when the temperature is low on the one hand, and ventilate and dissipate heat for the child safety seat when the temperature is high on the other hand.

[0004] According to one aspect of the present application, there is provided a child safety seat, including: a seat, a seat cushion, a heating device, and a control device. The seat is provided on the seat. The heating device is detachably provided in the seat cushion. The control device is provided in the seat, and the heating device is electrically connected to the control device.

[0005] The child safety seat according to the embodiment of the present application realizes controllable heating of the seat through the heating device and the control device, 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 insurance device. The first temperature measuring device is provided on the seat cushion and communicably connected to the control device, and the first temperature measuring device is configured to measure the real-time temperature of the heating device. The temperature insurance device is provided on the heating device and is configured to stop the heating device from heating when the heating device reaches a first preset temperature.

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

[0008] In one embodiment, the heating device includes: a heating element and a flame retardant member. The heating element is provided in the flame retardant member. The first temperature measuring device is provided on the flame retardant member, and the temperature insurance device is provided at the heating element.

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

[0010] In one embodiment, 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 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: connection terminals, and the heating element is detachably electrically connected to the control device through the connection terminals. The temperature fuse device is connected in series with the heating element.

[0012] In one embodiment, the heating element includes 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 in the seat, and the heating device is electrically connected to the control unit. The first temperature measuring device is communicably connected to the control unit, and the control unit is configured to: when the temperature measured by the first temperature measuring device reaches a 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 less than the second preset temperature, the control unit controls the heating element to start heating or allows the heating element to continue heating. 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 operation unit and a wireless communication module. The operation unit is disposed on the child safety seat and is communicably connected to the control unit, and the operation unit is configured to adjust the working state of the heating device. The control unit is wirelessly and communicably connected to an external device through the wireless communication module, and the external device is configured to adjust the working state of the heating device.

[0015] In one embodiment, the child safety seat further includes: a ventilation device, an upper cover, and a receiving cavity. The ventilation device is disposed in the seat and is electrically connected to the control device. The upper cover is provided with first ventilation holes, and the upper cover covers the receiving cavity. The ventilation device is disposed in the receiving cavity, and the seat cushion is disposed on the upper cover.

[0016] According to the embodiment of the present application, the child safety seat realizes ventilation and heat dissipation of the seat through the ventilation device, and improves the riding comfort of the child safety seat.

[0017] In one embodiment, the ventilation device includes: a first fixing seat and a fan. The first fixing seat is fixedly disposed in the accommodation cavity, and an air duct is formed between the first fixing seat and the upper cover. The fan is fixedly disposed on the first fixing seat and is electrically connected to 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 ventilation hole at the backrest of the seat, and the air outlet is 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 air duct in the air flow direction is less than the height of the air outlet, and the cross-sectional area of the air duct in the air flow 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 is communicably connected to the control device. The second temperature measuring device is configured to measure the real-time temperature of the seat. The control unit is disposed in the accommodation cavity, and the fan is electrically connected to the control unit. The second temperature measuring device is communicably connected to the control unit, and the control unit is configured to: when the temperature measured by the second temperature measuring device is less than a third preset temperature, the control unit controls the fan to stop ventilation; and / or when the temperature measured by the second temperature measuring device reaches the third preset temperature, the control unit controls the fan to start ventilation or allows the fan to continue ventilation.

[0021] In one embodiment, the first fixing seat further includes: a first guiding rib, which is disposed at an end of the first fixing seat close to the air outlet. The guiding rib defines a first guiding space between the air outlet and the air duct. The first guiding space is configured to be along the direction from the air outlet to the air duct, and the cross-sectional area of the first guiding space gradually becomes larger.

[0022] In one embodiment, the first fixing seat further includes: a second guiding rib, which is disposed at an end of the first fixing seat away from the air outlet. The second guiding rib defines a second guiding space in the air duct. The second guiding space is configured to be along the direction from the air outlet to the air duct, and the cross-sectional area of the second guiding space gradually becomes smaller.

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

[0024] In one embodiment, the ventilation device further includes: a second fixing seat disposed in the accommodation cavity, the second fixing seat fixedly connected to a side of the first fixing seat facing away from the upper cover, a seat belt guide groove defined between the second fixing seat and the first fixing seat.

[0025] In one embodiment, the ventilation device further includes: a lower cover disposed in the accommodation cavity, the lower cover connected to a side of the second fixing seat facing away from the first fixing seat, an installation space defined between the lower cover and the second fixing seat, the control unit fixedly disposed in the installation space. The control device further includes: an operation unit disposed on the seat and communicatively connected to the control unit, the operation unit configured to adjust the working state of the ventilation device.

[0026] According to one aspect of the present application, there is provided a child safety seat including: a seat including an upper cover; a plurality of fans; and a plurality of air guiding members having a hollow air duct and a plurality of second ventilation holes disposed on a side facing the upper cover and in fluid communication with the air duct. The plurality of air guiding members are respectively in fluid communication with the plurality of fans.

[0027] In one embodiment, the plurality of air guiding members are respectively spaced apart on lateral sides of the upper cover, and the plurality of air guiding members and the upper cover form a groove.

[0028] In one embodiment, the child safety seat further includes a fixing plate fixedly connecting at least two of the plurality of air guiding members, the fixing plate and the groove forming a channel.

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

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

[0031] In one embodiment, the air guiding member is arranged in a long strip structure and extends from the back of the seat to the seat portion of the seat.

[0032] In one embodiment, the air guiding member is provided with a load-bearing rib, the upper cover is provided with a first rib extending in the vertical direction, a load-bearing hole is provided on the side wall of the first rib, and the load-bearing rib is inserted into the load-bearing hole to fix the air guiding member on the upper cover.

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

[0034] In one embodiment, one end of the bearing rib passing through the bearing hole has an air outlet, and the air outlet is in fluid communication with the air duct and in fluid communication with the upper cover through the ventilation opening.

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

[0036] In one embodiment, the air guide comprises: an air duct upper cover, which is arranged on a side of the air guide close to the upper cover, and the second vent is arranged on the air duct upper cover; and an air duct lower cover, which is arranged on a side of the air guide away from the upper cover, and the air duct lower cover and the air duct upper cover are buckled with each other to form an air duct. The fan is fixedly connected to the air duct upper cover, and the air duct upper cover is fixedly connected to the upper cover.

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

[0038] In one embodiment, the multiple air guides include two air guides, and the two air guides extend along the longitudinal direction of the upper cover so that the second vents are distributed on the wings adjacent to the seats; 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 the first end of the air guide, and the load-bearing ribs are located at the second end of the air guide.

[0039] In one embodiment, the side edge of the upper cover of the duct includes a first snap-fit ​​piece, and the side edge of the lower cover of the duct includes a second snap-fit ​​piece. When the lower cover of the duct and the upper cover of the duct are buckled with each other, the first snap-fit ​​piece is engaged with the second snap-fit ​​piece to fix the lower cover of the duct with the upper cover of the duct.

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

[0041] In one embodiment, the child safety seat also includes a control device, which includes: a control unit, which is arranged on a fixed plate, and the fan is electrically connected to the control unit; an operating unit, which is arranged on the seat and is communicatively connected to the control unit, the operating unit is configured to adjust the working state of the fan, and a wireless communication module, the control unit is wirelessly and communicatively connected to an external device through the wireless communication module, and the external device is configured to adjust the working state of the fan.

[0042] In one embodiment, a receiving box and a cover are provided on a side of the fixing plate facing away from the upper 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 the present application, a child safety seat is provided, including 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 safety device disposed on the heating device and configured to cause the heating device to stop heating when the heating device reaches a first preset temperature. The heating device includes: a heating element, wherein the temperature safety device is connected in series with the heating element, the first temperature measuring device is a temperature detection chip; the temperature safety device is a resettable temperature fuse.

[0044] In one embodiment, the heating device further includes: a flame retardant member, the heating element is disposed within the flame retardant member, the first temperature measuring device is disposed on the flame retardant member, the temperature safety device is disposed at the heating element; and heat dissipation holes disposed on the flame retardant member. A bag-shaped accommodation space is formed within the seat cushion, the heating device is removably disposed within the accommodation space of the seat cushion, an openable and closable opening is provided on the accommodation space, a positioning recess is provided at the edge of the heating device, and a positioning protrusion is provided at the edge of the accommodation space, and the heating device is fixed within the accommodation 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, the heating device being electrically connected to the control unit. The first temperature measuring device is communicatively connected to the control unit, and the control unit is configured to: when the temperature measured by the first temperature measuring device reaches a 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 less 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.

[0046] According to another aspect of the present application, a child safety seat is further provided, including: a seat; a control device disposed within the seat; a ventilation device disposed within the seat and electrically connected to the control device; an upper cover provided with a first ventilation hole; and an accommodation cavity, the upper cover covering the accommodation cavity. The ventilation device is disposed within the accommodation cavity, the seat cushion is disposed on the upper cover, and the ventilation device includes: a first fixing seat fixedly disposed within the accommodation cavity, a wind channel being formed between the first fixing seat and the upper cover; and a fan fixedly disposed on the first fixing seat and electrically connected to 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 ventilation hole at the backrest of the seat, and the air outlet is in fluid communication with the wind channel. The height of the wind channel in the air flow direction is less than the height of the air outlet, and the cross-sectional area of the wind channel in the air flow direction is greater than the cross-sectional area of the air outlet.

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

[0048] In one embodiment, the ventilation device further includes: a second fixing seat, which is arranged in the accommodation cavity. The second fixing seat is fixedly connected to a side of the first fixing seat facing away from the upper cover. A seat belt guiding groove is defined between the second fixing seat and the first fixing seat.

[0049] According to one aspect of the present application, a child safety seat is provided, including: a seat, which includes an upper cover; a plurality of fans; and a plurality of air guiding members, which have a hollow air duct and a plurality of ventilation holes. The ventilation holes are arranged on a side facing the upper cover and are in fluid communication with the air duct. The plurality of air guiding members are respectively in fluid communication with the plurality of fans. The plurality of air guiding members are respectively spaced apart on the lateral sides of the upper cover. The plurality of air guiding members and the upper cover form a groove.

[0050] In one embodiment, the child safety seat further includes a fixing plate, which fixedly connects at least two of the plurality of air guiding members. The fixing plate and the groove form a channel. The upper cover is provided with a through hole for the length adjustment end of the seat belt to pass through. The through hole is in communication with the groove or the channel.

[0051] In one embodiment, the air guiding member is provided with a bearing rib, and the upper cover is provided with a first rib extending in the vertical direction. A bearing hole is arranged on the side wall of the first rib. The bearing rib is inserted into the bearing hole to fix the air guiding member on the upper cover.

[0052] In one embodiment, the upper cover is further provided with a second rib extending in the horizontal direction. The first rib and the second rib form a strengthening groove in the upper cover. The strengthening groove is provided with a ventilation opening. One end of the bearing rib passing out of the bearing hole has an air outlet, which is in fluid communication with the air duct and is in fluid communication with the upper cover through the ventilation opening.

[0053] In one embodiment, the air guiding member further includes an air outlet port in fluid communication with the air duct. The air outlet port is closer to the fan than the ventilation hole. The child safety seat further includes: a support pad assembly, which is detachably mounted on the seat. A cavity is formed inside the support pad assembly. Ventilation holes are formed on the bottom surface of the support pad assembly and are in fluid communication with the cavity. The ventilation holes are configured such that when the support pad assembly is mounted on the seat, the ventilation holes are in fluid communication with the air outlet port; and a connecting member, which is arranged on either the seat or the support pad assembly and can be inserted into the air outlet port to block the fluid communication between the fan and the ventilation hole.

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

[0055] In one embodiment, the support pad assembly is provided with a connecting member, the ventilation holes are formed in the connecting member, and the connecting member is at least partially inserted into the air outlet port to enter the air duct. The connecting member includes a windward portion in fluid communication with the ventilation holes and a wind blocking portion that blocks fluid communication between the fan and the ventilation holes.

[0056] In one embodiment, the child safety seat further includes: a shielding piece pivotally disposed on an upper surface of the upper cover or on the seat cloth, and a hole blocking member is provided on one side of the shielding piece. The shielding piece can pivot between an open position and a closed position. In the closed position, the hole blocking member closes the ventilation holes, and in the open position, the hole blocking member does not close the ventilation holes, so that the ventilation holes can be in fluid communication with the air outlet port.

[0057] In one embodiment, the child safety seat further includes: a connecting member pivotally connected to the air duct upper cover and capable of pivoting between a first position blocking the air outlet port and a second position blocking the air duct.

[0058] In one embodiment, the support pad assembly includes: a pad body provided with a through groove; and a pad core disposed in the through groove. The thickness of the pad core is less than the depth of the through groove, whereby when the pad core is disposed in the through groove, a cavity is formed in the through groove. Description of the Drawings

[0059] Through the more specific description of the preferred embodiments of the present application shown in the drawings, the above and other objects, features, and advantages of the present application will become clearer. The same reference numerals indicate the same parts in all the drawings, and the drawings are not deliberately drawn to actual scale, with the emphasis on showing the gist of the present application.

[0060] By reading the detailed description of the non-limiting embodiments made with reference to the following drawings, other features, objects, and advantages of the present application will become more obvious.

[0061] Figure 1A is a schematic perspective view of a child safety seat according to an embodiment of the present application.

[0062] Figure 1B isFigure 1A Partial enlarged view of part B.

[0063] Figure 2 Schematic structural diagram of a heating device according to an embodiment of the present application.

[0064] Figure 3 Schematic structural diagram 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 Schematic structural diagram of a seat cushion according to an embodiment of the present application, wherein part of the heating device is placed inside the seat cushion.

[0066] Figure 5 Schematic perspective view of a seat according to an embodiment of the present application.

[0067] Figure 6 is Figure 5 Schematic perspective view of the seat shown, wherein the upper cover is removed.

[0068] Figure 7 is Figure 6 Schematic perspective view of the seat shown, wherein the fan is removed.

[0069] Figure 8 Schematic perspective view of a seat according to an embodiment of the present application.

[0070] Figure 9 Schematic side sectional view of a child safety seat according to an embodiment of the present application.

[0071] Figure 10 is Figure 9 Partial enlarged view of part A.

[0072] Figure 11 Schematic perspective view of a ventilation device according to an embodiment of the present application.

[0073] Figure 12 Schematic perspective view of a ventilation device according to an embodiment of the present application.

[0074] Figure 13 Schematic exploded view of a ventilation device according to an embodiment of the present application.

[0075] Figure 14 Schematic diagram of circuit connection according to an embodiment of the present application

[0076] Figure 15 Schematic perspective view of a child safety seat according to an embodiment of the present application.

[0077] Figure 16 isFigure 15 Partial enlarged view of part C.

[0078] Figure 17 Schematic perspective view of a seat according to an embodiment of the present application.

[0079] Figure 18 Is Figure 17 Partial enlarged view of part D.

[0080] Figure 19 Another schematic perspective view of a seat according to an embodiment of the present application.

[0081] Figure 20 Schematic perspective view of a ventilation device according to an embodiment of the present application.

[0082] Figure 21 Is along Figure 20 Cross-sectional view taken along line E-E in.

[0083] Figure 22 Is Figure 20 Partial enlarged view of part F.

[0084] Figure 23 Another schematic perspective view of a ventilation device according to an embodiment of the present application.

[0085] Figure 24 Is Figure 23 Schematic perspective view of the ventilation device, where the cover of the accommodation box is removed.

[0086] Figure 25 Schematic structural view of a remote control according to an embodiment of the present application.

[0087] Figure 26A Schematic perspective view of a seat according to an embodiment of the present application.

[0088] Figure 26B Is Figure 26A Schematic perspective view of the seat shown after installing the seat cushion.

[0089] Figure 27 Schematic perspective view of a seat and a support cushion assembly according to an embodiment of the present application.

[0090] Figure 28A Schematic perspective view of a support cushion assembly according to an embodiment of the present application.

[0091] Figure 28B Is Figure 28A Schematic perspective view of the support cushion assembly shown after installing the seat cushion.

[0092] Figure 29is another schematic perspective view of a support pad assembly according to an embodiment of the present application.

[0093] Figure 30 is along Figure 27 a schematic cross-sectional view taken along the virtual plane α in

[0094] Figure 31A is a schematic perspective view of a seat with a shielding piece installed according to an embodiment of the present application, where the shielding piece is in the open position.

[0095] Figure 31B is along Figure 31A a schematic cross-sectional view taken along the virtual plane γ in

[0096] Figure 32 is a schematic perspective view of a seat with the upper cover removed according to an embodiment of the present application.

[0097] Figure 33 is a schematic perspective view of a wind guide according to an embodiment of the present application.

[0098] Figure 34 is along Figure 33 a schematic cross-sectional view taken along the virtual plane β in

[0099] Figure 35A is a schematic perspective view of a seat according to an embodiment of the present application, showing the seat Figure 31B after replacing the shielding piece in

[0100] Figure 35B is a schematic perspective view of a seat according to an embodiment of the present application, showing the seat Figure 31B after replacing the shielding piece in

[0101] Figure 36A is a schematic perspective view of a support pad assembly according to an embodiment of the present application.

[0102] Figure 36B is Figure 36A a schematic exploded view of the support pad assembly shown in

[0103] List of Reference Numerals

[0104] 10, seat, 101, upper cover, 102, accommodation cavity, 1011, first ventilation hole, 103, second fixing seat, 1031, seat belt guide groove, 104, lower cover, 1041, installation space, 120, third ventilation hole,

[0105] 20. Seat cushion, 201. Accommodating space, 2011. Positioning convex part, 202. Opening

[0106] 30. Heating device, 301. Heating element, 302. Flame retardant part, 303. First temperature measuring device, 304. Heat dissipation holes, 305. Connection terminals, 306. Positioning concave part

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

[0108] 50. Insurance device

[0109] 60. Ventilation device, 601. First fixing seat, 602. Fan, 603. Second temperature measuring device, 6011. Air duct, 6012. First guiding rib, 6013. Air inlet, 6014. Air outlet, 6015. Second guiding rib, 6021. Outlet, 6022. Inlet, 60121. First guiding space, 60151. Second guiding space

[0110] 70. Base

[0111] 11. Backrest, 12. Seat part

[0112] 604. Air guiding part, 6011. Air duct, 1015. Through hole, 6041. Bearing rib, 1012. Bearing hole, 1013. Air outlet

[0113] 6042. Upper cover of air duct, 6043. Lower cover of air duct, 60421. First engaging part, 60431. Second engaging part, 6044. Second ventilation hole, 6045. Groove, 6046. Guiding part, 605. Fixing plate, 6051. Channel, 6052. Extension part

[0114] 1014. Air hole, 6053. Accommodating box, 6054. Cover body, 6055. Backrest section, 6056. Seat section, 6057. Connection 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 strap, 82. Waist strap, 83. Hip strap, 84. Length adjustment strap, 85. Buckle

[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 part, 13321. Opening, 1333. Windshield part

[0119] 130. Ventilation hole, 140. Shading piece, 141. Hole plugging piece, 6047. Air outlet port Detailed implementation mode

[0120] For the convenience of understanding this application, the following will describe this application more comprehensively with reference to the relevant drawings. The preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0121] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component and integrated with it, or there may be an intermediate component at the same time. The terms "installation", "one end", "the other end" and similar expressions used herein are only for the purpose of illustration.

[0122] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. In this application, unless otherwise specified, the "front-back direction" refers to the direction that the baby faces when sitting in the child safety seat, and the "lateral direction" refers to the direction orthogonal to the "front-back direction".

[0123] Reference Figure 1A , Figure 1ASchematic perspective view of a child safety seat according to an embodiment of the present application. In an embodiment of the present application, a child safety seat is provided, which includes: a seat 10 and a base 70, and the seat 10 is fixed on the base 70. On the side of the seat 10 facing the child passenger sitting thereon, there is an upper cover 101, and a plurality of first ventilation holes 1011 are provided on the upper cover 101. The first ventilation holes 1011 are used to enhance the heat exchange capacity of the seat 10. For example, the first ventilation holes 1011 can increase the flow rate of the hot air flowing through the seat 10, so that the seat 10 is heated more evenly. For example, the first ventilation holes 1011 can increase the flow rate of the room temperature air flowing through the seat 10 to enhance the ventilation and heat dissipation of the seat 10.

[0124] Reference Figures 2 to 4 , Figure 2 is a schematic structural diagram of a heating device according to an embodiment of the present application, Figure 3 is a schematic structural diagram of a seat cushion according to an embodiment of the present application, where the heating device is completely placed inside the seat cushion, Figure 4 is a schematic structural diagram of a seat cushion according to an embodiment of the present application, where the heating device is partially placed inside the seat cushion. The child safety seat further includes: a seat cushion 20, which is detachably arranged on the seat 10; and a heating device 30, which is detachably arranged inside the seat cushion 20. Specifically, the seat cushion 20 is sleeved on the seat 20 and covers the upper cover 101. In this embodiment, on the side of the seat cushion 20 facing the seat 10, there is a receiving space 201, and the heating device 30 is detachably arranged in the receiving space 201. Specifically, a positioning recess 301 may be provided at the edge of the heating device 30, and a positioning protrusion 2011 is provided at the edge of the receiving space. The heating device 30 is fixed in the receiving space through the shape fit of the positioning recess and the positioning protrusion. An openable and closable opening 202 is provided on the receiving space 201, and the heating device 30 is inserted into or taken out of the receiving space 201 through the opening 202. Optionally, the opening 202 is opened and closed by a zipper device. Those skilled in the art should understand that providing the receiving space 201 on the seat cushion 20 is only exemplary, and the heating device 30 can also be detachably arranged inside the seat cushion in other ways, such as through snap connection, magnetic attraction connection, buckle connection, etc. The present application does not limit this.

[0125] Reference Figure 2, the heating device 30 includes: a heating element 301, a flame retardant member 302, and a connection terminal 305. The heating element 301 is disposed within the flame retardant member 302 and is electrically connected to the connection terminal 305. In this embodiment, the heating element 301 may be a heating wire made of metal and / or carbon fiber, or may be a heating mesh made of graphene. Optionally, the heating element 301 may also be a heating sheet, a heating rod, etc., and the present application does not limit this. In this embodiment, the flame retardant member 302 is a hollow sheet-like element, and the heating wire is arranged within the sheet-like element. Optionally, the flame retardant member 302 may also be of other suitable shapes, such as strip-shaped, rod-shaped, etc., and the present application does not limit this. The flame retardant member 302 serves as a carrier for the heating device 30 and provides insulation protection for the heating element 301 disposed therein. Further, the flame retardant member 302 also allows the heat generated by the heating element 301 to be evenly dissipated outward. When the flame retardant member 302 stops heating, the flame retardant member 302 can continue to evenly dissipate the residual heat of the heating element 301 outward, avoiding a rapid drop in the seat temperature, thereby improving the comfort of use. In this embodiment, the flame retardant member 302 is made of white fiber. Optionally, the flame retardant member 302 may also be made of other suitable materials, such as asbestos, etc., and the present application does not limit this.

[0126] In Figure 2 the illustrated embodiment, the heating device 30 further includes a first temperature measuring device 303, which is disposed on the flame retardant member 302 and at the heating element 301. The first temperature measuring device 303 is communicatively connected to the control device 40, and the first temperature measuring device 303 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. The temperature sensor is disposed on the flame retardant member 302 to measure the real-time temperature of the heating device 30. It should be noted that Figure 2 although the first temperature measuring device 303 is shown as being disposed in the middle of the flame retardant member 302, this is only exemplary. Those skilled in the art can select the installation position of the first temperature measuring device 303 according to actual needs. For example, the first temperature measuring device 303 may be disposed on the upper part of the flame retardant member 302. Optionally, the first temperature measuring device 303 may also be disposed outside the heating device 30, such as in a part of the seat cushion 20 near the heating element 301, or in a part of the seat 10 near the heating device 30. Optionally, a plurality of first temperature measuring devices 303 may be disposed on the flame retardant member 302, and the control device 40 evaluates the real-time temperature of the heating device 30 through the temperatures measured by the plurality of first temperature measuring devices 303.

[0127] In Figure 2In the illustrated embodiment, the heating device 30 further includes a plurality of heat dissipation holes 304 which are arranged on the flame retardant member 302. The heat dissipation holes 304 are used to enhance the heat dissipation ability of the heating device 30, which helps to transfer the heat generated by the heating element 301 to the seat cushion 20 and then to the seat 10. Preferably, the plurality of heat dissipation holes 304 are uniformly arranged at equal intervals along the extension direction of the heating element 301. It should be noted that Figure 2 the number and arrangement of the heat dissipation holes 304 shown therein are exemplary. Those skilled in the art can select the number and arrangement of the heat dissipation holes 304 according to actual needs.

[0128] Referring to Figure 1A 、 Figure 2 and Figure 14 , Figure 14 is a schematic circuit connection diagram according to an embodiment of the present application. The child safety seat further includes: a control device 40 which is at least partially disposed within the seat 10, and the 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 (referring to Figure 10 ), which is disposed within the seat 10, and the heating device 30 is electrically connected to the control unit 401. The first temperature measuring device 303 is communicatively connected to the control unit 401. The control unit 401 is configured to: when the temperature measured by the first temperature measuring device 303 reaches a second preset temperature, the control unit 401 controls the heating element 301 to stop heating. Optionally, the control unit 401 is further configured to: when the temperature measured by the first temperature measuring device 303 is less than the second preset temperature, the control unit 401 controls the heating element 301 to start heating or allows the heating element 301 to continue heating. Optionally, the second preset temperature is adjustable. Optionally, the control unit 401 is a control circuit board. The installation position of the control unit 401 will be described in detail later.

[0129] Referring to Figure 1A , the control device 40 further includes: an operation unit 402 which is disposed on the child safety seat and is communicatively connected to the control unit 401, and the operation unit 402 is configured to adjust the working state of the heating device 30. In Figure 1A 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 of the child safety seat according to the usage requirements, for example, disposed on the seat 10. The operation unit 402 includes at least one switch, and the at least one switch is used to control the turning on and off of the heating element 301. Optionally, the operation unit 402 at least includes a main power switch and a heating switch, the main power switch is used to control the turning on and off of the control unit 401, and the heating switch is used to control the turning on and off of the heating element 301.

[0130] Referring to Figure 1B, Figure 1B is Figure 1A a partial enlarged view of part B in Figure 1B . In one embodiment, the operation 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 of the child safety seat and is used to control the power on and off of the control unit 401. The heating switch 4022 is used to control the opening and closing of the heating function of the child safety seat. The fan switch 4023 is used to control the opening and closing of the ventilation function of the child safety seat. Optionally, the switch forms of the power switch 4021, the heating switch 4022, and the fan switch 4023 can be the same or different. Optionally, the switch forms include touch switches, 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 communicably connected to an external device through the wireless communication module, and the external device is configured to adjust the working 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 intelligent terminals such as mobile phones and tablet computers. After the control unit 401 is wirelessly and communicably connected to the external device through 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 through the application software running on the external device.

[0132] Taking the Bluetooth communication module and the mobile phone as an example below, the operation mode of the heating device 30 provided by the embodiment of the present application will be described. When the control unit 401 is wirelessly and communicably connected to the mobile phone through the Bluetooth communication module, the user can set the operating parameters of the heating device 30 and control the operating state of the heating device 30 through the application program running on the mobile phone. For example, the user can control the turning on or off of the heating element 301 through the application program running on the mobile phone. For example, the user can set a second preset temperature through the application program running on the mobile phone, for example, set it 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 14, the child safety seat further includes: a temperature insurance device 50, which is disposed on the heating device 30 and configured to stop the heating device 30 from heating when the heating device 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 device 30 is operating, if the temperature of the heating device 30 exceeds the first preset temperature, for example, exceeds 60 °C, the temperature insurance device 50 will open the circuit, thereby cutting off the electrical circuit of the heating element 301 and causing the heating element 301 to stop heating. The temperature insurance device 50 is used to prevent the heating device 30 from overheating, which can avoid damage to the heating device 30 or other components of the child safety seat due to overheating, and can also prevent child passengers sitting on the child safety seat from being injured due to overheating of the seat cushion 20. In Figure 14 In the illustrated embodiment, the temperature insurance device 50 is disposed between the control device 40 and the heating element 301, but this is only exemplary. Those skilled in the art can dispose the temperature insurance device 50 at any suitable position in the circuit according to needs, as long as the requirement of cutting off the electrical circuit of the heating element 301 through the temperature insurance device 50 is met. Preferably, the temperature insurance device 50 is a resettable temperature fuse, which is connected in series in the electrical circuit of the heating element 301. The self-resetting fuse is defined with a first preset temperature, a self-resetting temperature, and a self-resetting time. When the temperature of the heating device 30 exceeds the first preset temperature, the self-resetting 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 continuously remains below the self-resetting temperature for a time exceeding the self-resetting time, the self-resetting fuse will resume conduction of the current. Optionally, the temperature insurance device 50 can also be a one-time fuse. When the temperature of the heating device 30 exceeds the first preset temperature, the one-time fuse will melt, thereby cutting off the electrical circuit of the heating element 301. Replacing the one-time fuse can resume conduction of the current.

[0134] The temperature insurance device 50 can independently achieve an open circuit, which is particularly advantageous for certain extreme situations. For example, in the case of a malfunction of the control device 30, when the heating device 30 exceeds the second preset temperature, the control device 30 does not control the heating element 301 to stop heating, resulting in continuous heating of the heating element 301 and causing the temperature of the control device 30 to rise to exceed the first preset temperature. At this time, the temperature insurance device 50 opens the circuit, cutting off the electrical circuit of the heating element 301 and causing the heating element 301 to stop heating, thereby realizing the "insurance" function.

[0135] Refer to Figures 5 to 7 and Figure 14 , Figure 5 is a schematic perspective view of a seat according to an embodiment of the present application; Figure 6 is Figure 5 a schematic perspective view of the seat shown in Figure 7Yes Figure 6 A schematic perspective view of the seat shown, with the fan removed. In one embodiment, the child safety seat further includes: a ventilation device 60, which is disposed within the seat 10 and electrically connected to the control device 40. The ventilation device 60 is configured to form an air flow inside the seat 10 to reduce the temperature of the seat 10. Refer to Figure 5 and Figure 6 , a receiving cavity 102 is defined within the seat 10, an upper cover 101 is provided to cover the receiving cavity 102, and the ventilation device 60 is disposed within the receiving cavity 102. The ventilation device 60 includes: a first fixing seat 601, which is fixedly disposed within the receiving cavity 102, and a wind channel 6011 is formed between the first fixing seat 601 and the upper 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 wind channel 6011. The normal temperature air driven by the fan 602 flows through the wind channel 6011 and the first ventilation holes 1011 of the upper cover 101 into the area where the seat cushion 20 is located to reduce the temperature of the seat cushion. In this embodiment, the wind channel 6011 formed between the first fixing seat 601 and the upper cover 101 defines a ventilation area on the side of the upper cover 101 facing away from the seat cushion 20, and this ventilation area corresponds to at least a part of the lower side of the seat cushion 20. The normal temperature air driven by the fan 602 flows concentratedly in this area and flows out through the first ventilation holes 1011 to the seat cushion 20, and the air flow gathers at the part of the seat cushion 20 corresponding to this ventilation area, so that the temperature reduction is more targeted and the effect is better.

[0136] Refer to Figure 7 , Figure 9 and Figure 10 , Figure 9 is a schematic side cross-sectional view of a child safety seat according to an embodiment of the present application; Figure 10 Yes Figure 9 is a partial enlarged view of part A in . In one embodiment, the first fixing seat 601 is provided with an air inlet 6013 and an air outlet 6014. The air inlet 6013 is in fluid communication with the third ventilation holes 120 at the backrest of the seat 10, and the air outlet 6014 is in fluid communication with the wind channel 6011. Optionally, the air inlet 6013 is provided at a part of the first fixing seat 601 close to 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 for temperature reduction to enhance the temperature reduction effect. It should be noted that Figure 7 the number and arrangement of the air inlets 6013 shown in are both 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 8, in one embodiment, the air duct 6011 is recessed in a direction away from the seat cushion 20 to define a ventilation area on a side of the upper cover 101 facing away from the seat cushion 20, and the ventilation area corresponds to at least a part below the seat cushion 20. The normal-temperature air driven by the fan 602 flows intensively in this area and flows out from the first ventilation hole 1011 to the seat cushion 20. The air flow accumulates in the part of the seat cushion 20 corresponding to this ventilation area, so the cooling is more targeted and the effect is better. Further, the height of the air duct 6011 in the air flow direction is smaller than the height of the air outlet 6014. Thus, the space required for the air duct 6011 is smaller, the space occupied by the first fixing seat 601 is smaller, and the overall mechanism of the seat 10 is more compact. Further, the cross-sectional area of the air duct 6011 in the air flow direction is larger than the cross-sectional area of the air outlet 6014, so that the flow rate of the air flow entering the air duct 6011 is reduced, and the pressure on the surrounding environment increases greatly, thereby improving the gas exchange capacity and enhancing the cooling effect.

[0138] The first fixing seat 601 further includes: a first guiding rib 6012, which is arranged at one end of the first fixing seat 601 close to the air outlet 6014. The first guiding rib 6012 defines a first guiding space 60121 between the air outlet 6014 and the air duct 6012. The first guiding space 60121 is configured to gradually increase in cross-sectional area along the direction from the air outlet 6014 to the air duct 6011. This reduces the flow rate of the air flow passing through the first guiding space 60121 and increases the pressure on the surrounding environment greatly, thereby improving the gas exchange capacity and enhancing the cooling effect. In addition, the guiding space 60121 defined by the first guiding rib 6012 guides the air flow flowing out from the outlet 6021, so that the air flow flows towards the air duct 6011 as much as possible for cooling the part of the seat cushion 20 corresponding to the ventilation area. Therefore, the setting of the first guiding rib 6012 improves the utilization rate of the air flow and further enhances the cooling effect. Refer to Figure 8 , in one embodiment, the ventilation device 60 further includes: a second temperature measuring device 603, which is arranged 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. The temperature sensor is arranged in the upper cover 101 to measure the real-time temperature near the upper cover 101 and the seat cushion 20. It should be noted that Figure 8Although it is shown in the figure that the second temperature measuring device 603 is arranged in the middle of the upper cover 101 and is in a strip-shaped structure, this is only exemplary. Those skilled in the art can select the installation position and shape of the second temperature measuring device 603 according to actual needs. For example, the second temperature measuring device 303 can be arranged on the side of the upper cover. Optionally, the second temperature measuring device 603 can be arranged in other shapes, such as circular, rectangular, etc. Optionally, a plurality of second temperature measuring devices 603 can be arranged on the upper cover 101, and the control device 40 evaluates the real-time temperature near the current seat cushion 20 through the temperatures measured by the plurality of second temperature measuring devices 603.

[0139] In one embodiment, the fan 602 is electrically connected to the control unit 401. The second temperature measuring device 603 is communicatively connected to the control unit 401. The control unit 401 is configured to: when the temperature measured by the second temperature measuring device 603 is less than the third preset temperature, the control unit 401 controls the fan 602 to stop ventilating; and / or when the temperature measured by the second temperature measuring device 603 reaches the third preset temperature, the control unit 401 controls the fan 602 to start ventilating or allows the fan to continue ventilating.

[0140] Combined Figure 1A and Figure 8 , the operation unit 402 is configured to be used to adjust the working state of the ventilation device 60 configured to be adjusted. In Figure 8 the embodiment shown, the position of the operation unit 402 can be similar to that in Figure 1A the embodiment shown. The operation unit 402 includes at least one switch, and the at least one switch is used to control the opening and closing of the fan 602. Optionally, the operation unit 402 includes a ventilation switch, and the ventilation switch is used to control the opening and closing of the fan 602.

[0141] Optionally, in Figure 8 the embodiment shown, the control unit 401 further includes: a wireless communication module. The wireless communication module can be similar to the wireless communication module in Figure 1A the embodiment shown. After the control unit 401 is wirelessly and communicatively connected to an external device through the wireless communication module, the operating parameters of the ventilation device 60 can be set and the operating state of the ventilation device 60 can be controlled through an application software running on the external device.

[0142] Taking the Bluetooth communication module and the mobile phone as an example, the operation mode of the ventilation device 60 provided in the embodiment of the present application will be described. When the control unit 401 is wirelessly and communicably connected to the mobile phone through the Bluetooth communication module, the user can set the operation parameters of the ventilation device 60 and control the operation state of the ventilation device 60 through the application program running on the mobile phone. For example, the user can control the ventilation device 60 to be turned on or off through the application program running on the mobile phone. For example, the user can set the third preset temperature through the application program running on the mobile phone, such as setting it to 30 °C. Specifically, when the fan 602 is in the on state, 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 in the off state, 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] Reference Figure 9 and Figure 10 , in one embodiment, a second fixing seat 103 is further provided in the accommodation cavity 102. The second fixing seat 103 is fixedly connected to a side of the first fixing seat 601 facing away from 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 passing 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 and the seat belt passing through it isolate the air duct 6011 above the seat belt guide groove 1031 from the components below the seat belt guide groove 1031 to ensure the safe operation of the components below the seat belt guide groove 1031, which will be further described below.

[0144] Reference Figures 11 to 13, in one embodiment, the first fixing base 601 further includes: a second guiding rib 6015, which is disposed at an end of the first fixing base 601 away from the air outlet 6014. The second guiding rib 6015 defines a second guiding space 60151 in the air duct 6011. The second guiding space 60151 is configured such that along the direction from the air outlet 6014 to the air duct 6011, the cross-sectional area of the second guiding space 60151 gradually decreases, so that the flow rate of the air flow passing through the second guiding space 60151 decreases, and the pressure on the surrounding environment increases greatly, thereby improving the gas exchange capacity and enhancing the cooling effect. Specifically, the second guiding rib 6015 is a U-shaped structure, and the second guiding rib 6015 is disposed at a position opposite to the air outlet 6014. The U-shaped portion of the second guiding rib 6015 is in communication with the seat belt guiding groove 1031. After the seat belt (hip belt) passes through the seat belt guiding groove 1031 and then passes through the U-shaped portion of the second guiding rib 6015, it further passes through the hip belt opening of the upper cover 101, thereby preventing the bending angle between the hip belt seat belt guiding groove 1031 and the hip belt opening from being too large. A lower cover 104 is further disposed in the accommodating cavity 102, and the lower cover 104 is connected to a side of the second fixing base 103 facing away from the first fixing base 601. An installation space 1041 is defined between the lower cover 104 and the second fixing base 103, and the control unit 401 is fixedly disposed in the installation space 1041. In this embodiment, a side of the second fixing base 103 facing away from the first fixing base 601 extends in a direction away from the first fixing base 601 to form a hollow structure, and 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 guiding groove 1031, and the control unit 401 is disposed in the installation space 1041 below the seat belt guiding groove 1031. Thus, the seat belt guiding groove 1031 together with the seat belt passing through it separates the air duct 6011 above the seat belt guiding groove 1031 from the control unit 401 disposed in the installation space 1041 below the seat belt guiding groove 1031, so as to prevent other components of the child safety seat or foreign objects in the air inhaled by the fan 602 from contacting the control unit 401 and causing damage to the control unit 401.

[0145] Reference Figure 15 , Figure 17 and Figure 19 , in one embodiment, a child safety seat is further provided, including: a seat 10, which includes an upper cover 101; a plurality of fans 602; and a plurality of air guiding members 604. The plurality of air guiding members 604 are respectively in fluid communication with the plurality of fans 602. An air flow is formed inside the seat 10 through the fans 602 and the air guiding members 604 to reduce the temperature of the seat 10 and bring a comfortable use experience to the user.

[0146] Reference 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 ventilation holes 6044. The second ventilation holes 6044 are provided at least 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 flows out from the second ventilation holes 6044, and the flowing air can reduce the temperature of the area near the upper cover 101 of the seat 10. The air guide 604 and the air duct 6011 are substantially straight in the front-rear direction of the seat 10 to reduce the noise caused by large-angle bending of the air duct.

[0147] Reference Figure 17 and Figure 19 In one embodiment, a plurality of air guides 604 are respectively located on both sides of the upper cover 101, and the plurality of air guides 604 and the upper cover 101 form a groove 6045. Those skilled in the art can understand that: the combination of a plurality of independent air guides and a plurality of fans can effectively reduce the fan operation and air duct noise while ensuring the air flow pressure at the air outlet. Arranging the plurality of air guides 604 on both sides of the upper cover can maximize the contact surface on the premise of ensuring the air outlet pressure to improve the heat dissipation efficiency. In this embodiment, there are two air guides 604, and each air guide 604 is connected to one fan. The air ducts between 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, that is, the end far from the seat backrest; the load-bearing rib 6041 is located at the rear end of the air guide 604, that is, the end close to the seat backrest. Figure 17 The approximate area of the groove 6045 is exemplarily shown by a dotted line in. Specifically, the opposite edges of the air guides 604 located on both sides of the upper cover 101 and the upper cover 101 jointly define the groove 6045. The groove 6045 is adapted to provide a guiding and accommodating space for the seat belt of the child safety seat. With reference to Figure 15 and Figure 17 , Figure 15 exemplarily shows the structure of the seat belt of the child safety seat exposed from the seat 10, Figure 17The structure of the child safety seat belt located on the back side of the upper cover 101 (inside the seat 10) is exemplarily shown in dotted lines. For example, the safety belt includes: a shoulder belt 81, a waist belt 82, a crotch belt 83 and a buckle 85, wherein the shoulder belt 81, the waist belt 82 and the crotch belt 83 can be locked by a buckle (e.g., a five-point buckle) 85. The shoulder belt 81 passes through the back side of the upper cover 101 (i.e., enters the inside of the seat 10) from the safety belt hole located on the back 11 of the seat 10, passes through the groove 6045, and passes through the through hole 1015 provided in the upper cover 101, so that the end of the shoulder belt 81 is exposed from the upper cover 101. The end of the shoulder belt 81 exposed from the upper cover 101 forms a length adjustment belt 84, and the user adjusts the length of the shoulder belt 81 by pulling the length adjustment belt 84. In this embodiment, the groove 6045 at least provides a limiting and guiding function for the shoulder belt 81. The through hole 1015 is connected to 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 arranged at intervals with a gap for guiding, the width of which is smaller than the width of the groove 6045. The length adjustment belt 84 passes through the through hole 1015 after passing through the gap of the fan 602.

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

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

[0150] Reference Figures 19 to 21 , in one embodiment, the fixing plate 605 is arranged to extend 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 section 6056, and a connecting section 6057. The backrest section 6055 is arranged, for example, on the backrest 11 of the seat 10. The seat section 6056 is arranged, for example, on the seat portion 12 of the seat 10. The connecting section 6057 is connected between the backrest section 6055 and the seat section 6056. Optionally, the shape of the connecting section 6057 matches the shape of the corresponding part of the upper cover 101. Preferably, the connecting section 6057 is arranged to be arc-shaped. Optionally, the air guiding member 604 is arranged as a strip-shaped structure and extends from the backrest of the seat 10 to the seat portion of the seat 10. The strip-shaped air guiding member 604 can, on the one hand, ensure the air pressure of the flowing air in the air duct 6011, and on the other hand, can cover as much area as possible from the backrest 11 to the seat portion 12 of the seat 10 to increase the area of the heat dissipation area and optimize the heat dissipation effect. Further, the radian of the air guiding member 604 is less than 90 degrees to reduce the loss of the passing air flow and increase the air outlet pressure at the ventilation holes (for example, the second ventilation hole 6044, the ventilation opening 1019).

[0151] Reference Figure 17 and Figure 18, in one embodiment, the air guide member 604 is provided with a bearing rib 6041, the upper cover 101 is provided with a first rib 1016 extending in the vertical direction, a bearing hole 1012 is provided on the side wall of the first rib 1016, and the bearing rib 6041 is inserted into the bearing hole 1012 to be fixed on the upper cover 101, improving the space utilization rate in the height direction. In addition, since resonance may occur between multiple independent air guide members, which may cause the fixing screws to become loose, the insertion and fixing method can improve the anti-resonance ability of the air guide member and the stability of the fixed connection. Optionally, one end of the bearing rib 6041 passing through the bearing hole 1012 has an air outlet 1013, and 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 from the air outlet 1013 to reduce the temperature of the area of the upper cover 101 near the air outlet 1013, thereby improving the heat dissipation effect. Optionally, the upper cover 101 is further provided with a second rib 1017 extending in the horizontal direction, 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 with each other to form a cavity structure. The reinforcing groove 1018 is further provided with a ventilation opening 1019, and the air outlet 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 for the bearing rib 6041. On the other hand, the cavity structure in the reinforcing groove 1018 increases the air outlet area, making the vacant space near the air outlet 1013 larger and the resistance of air flow smaller. In some embodiments, at least a part of the ventilation holes (for example, the second ventilation hole 6044, the ventilation opening 1019) are arranged near the two wings of the seat 10 to ensure that the ventilation holes are not completely covered by the baby's buttocks, thereby improving the air outlet efficiency.

[0152] Reference Figure 17 and Figure 18 , in one embodiment, the upper cover 101 is provided with a plurality of first ventilation holes 1011 located above the air guide member 604 and air holes 1014 located above the grooves between the air guide members 604. Optionally, the first ventilation holes 1011 and the second ventilation holes 6044 of the air guide member 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, referring to Figure 20, the air guiding member 604 on the left side blows air towards the upper surface of the upper cover 101 through the first ventilation hole 1011, and the air guiding member 604 on the right side sucks air from the upper surface of the upper cover 101 through the first ventilation hole 1011. In some other embodiments (not shown in the figures), there are more than 2 air guiding members provided on the left and right sides of the seat respectively. Among the multiple air guiding members on the left side, some air guiding members blow air towards the upper surface of the upper cover through the first ventilation hole, and some other air guiding members suck air from the upper surface of the upper cover through the first ventilation hole to form an air flow circulation system on the left side. Among the multiple air guiding members on the right side, some air guiding members blow air towards the upper surface of the upper cover through the first ventilation hole, and some other air guiding members suck air from the upper surface of the upper cover through the first ventilation hole to form an air flow circulation system on the right side.

[0153] Reference Figures 20 to 22 , in one embodiment, the air guiding member 604 includes: an air duct upper cover 6042 and an air duct lower cover 6043. The air duct lower cover 6043 and the air duct upper cover 6042 are inserted and fastened to each other to form an air duct 6011. The air duct upper cover 6042 is arranged on the side of the air guiding member 604 close to the upper cover 101, and the second ventilation hole 6044 is provided on the air duct upper cover 6042. The air duct lower cover 6043 is arranged on the side of the air guiding member 604 away from the upper cover 101. The fan 602 is fixedly connected to the air duct upper cover 6042, and the air duct upper cover 6042 is fixedly connected to the upper cover 101. Optionally, a first mounting portion 60432 is provided at one end of the air duct upper cover 6042 away from the fan 602, and the air duct upper cover 6042 is fixedly connected to the upper cover 101 through the first mounting portion 60432. Specifically, screw holes are provided in the first mounting portion 60432, and the air duct upper cover 6042 is fixedly connected to the upper cover 101 through screws inserted into the screw holes.

[0154] In one embodiment, the air duct upper cover 6042 and the air duct lower cover 6043 are fastened to each other through engaging members. Specifically, reference Figure 21 , the side edge of the air duct upper cover 6042 includes a first engaging member 60421, and the side edge of the air duct lower cover 6043 includes a second engaging member 60431. When the air duct lower cover 6043 and the air duct upper cover 6042 are fastened to each other, the first engaging member 60421 and the second engaging member 60431 are snapped together to fixedly connect the air duct lower cover 6043 and the air duct upper cover 6042. Optionally, one of the first engaging member 60421 and the second engaging member 60431 is a snap projection, and the other is a snap ring. Those skilled in the art should understand that the air duct upper cover 6042 and the air duct lower cover 6043 being fastened to each other through engaging members is only exemplary, and the air duct upper cover 6042 and the air duct lower cover 6043 can also be fastened to each other through other suitable means, such as buckle connection, magnetic attraction connection, hot melt connection, etc.

[0155] Reference Figure 20 and Figure 21, in one embodiment, the fixing plate 605 is disposed inside the upper cover 101 and covers at least a portion of the air duct lower cover 6043. Optionally, an extension portion 6052 is provided at a side edge of the fixing plate 605, and the extension portion 6052 covers and supports the air duct lower cover 6043. In one embodiment, a fan mounting portion 60422 is provided on the air duct upper cover 6042, and the shape of the fan mounting portion 60422 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 a part of the outer shell of the fan 602. Optionally, the fan 602 is provided with a second mounting portion 60423, and the fan 602 is fixedly connected to the upper cover 101 through the second mounting portion 60423. Specifically, screw holes are provided in the second mounting portion 60423, and the fan 602 is fixedly connected to the upper cover 101 by screws inserted into the screw holes.

[0156] Reference Figure 19 and Figure 20 , in one embodiment, the fan 602 includes an inlet 6022 and an outlet 6021. Among them, the outlet 6021 of the fan 602 is in fluid communication with one end of the air guiding member 604 to be in fluid communication with the air duct 6011. Optionally, the inlets 6022 of the respective fans 602 may be arranged to have the same orientation. For example, in the embodiment shown in Figure 20 , the inlets 6022 of the two fans 602 both face the upper cover 101. Optionally, the inlets 6022 of the respective fans 602 may be arranged to have different orientations. For example, in other embodiments, the inlet 6022 of one of the fans 602 faces the upper cover 101, and the inlet 6022 of the other fan 602 faces the inside of the seat 10. In embodiments where the inlets 6022 of the respective fans 602 are arranged to have different orientations, multiple fans 602 may use fans of the same model (the inlets 6022 of the fans 602 have the same orientation) to reduce the number of accessories and lower the production cost. In this embodiment, both of the two fans 602 are used to blow air towards the air duct 6011. In some embodiments, both of the two fans 602 are used to extract air from the air duct 6011; in still other embodiments, one fan 602 is used to blow air towards the air duct 6011, and the other fan 602 is used to extract air from the air duct 6011.

[0157] Reference 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 operation unit 402. The control unit 401 is disposed on the fixing plate 605, and the fan 602 is electrically connected to the control unit 401. The operation unit 402 is disposed on the seat 10 and is communicatively connected to the control unit 401. The operation unit 402 is configured to adjust the operating state of the fan 602. Optionally, reference Figure 16, the operation unit 402 is a controller provided on the base 70, and the 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 further include a wireless communication module, and the control unit 401 is wirelessly and communicably connected to an external device through the wireless communication module, and the external device is configured to adjust the working state of the fan 602. Optionally, the external device may be a remote control 90. For example, as Figure 25 shown, the remote control 90 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, referring to Figure 24 , on a side of the connecting section 6057 of the fixing plate 605 facing away from the upper cover 101, a receiving box 6053 and a cover body 6054 are provided. The control unit 401 is fixedly arranged in the receiving box 6053, and the cover body 6054 is detachably fixed to the receiving box 6053 to enclose the receiving box 6053.

[0159] Referring also to Figures 26A to 27 , according to an embodiment of the present application, a child safety seat is further provided. The child safety seat includes a seat 10 and a support pad assembly 13. As Figure 26A shown, the seat 10 includes an upper cover 101. Ventilation holes 130 are provided on the upper cover 101. The support pad assembly is a safety seat accessory designed for children with a smaller build, and is used to adjust the seating space of the seat 10. When the child is of a smaller size, the support pad assembly can be installed on the child safety seat so that the child can maintain a correct sitting posture (see Figure 26B ); when the child grows to a larger size, the support pad assembly can be removed from the child safety seat, and the child can directly sit on the child safety seat. The inside of the support pad assembly is usually filled with a relatively thick sponge, foam and other foaming materials to protect the head, cervical vertebra and spine of young children. However, the support pad assembly blocks the ventilation holes on the upper cover of the seat, reducing the heat dissipation effect and thus affecting the riding comfort.

[0160] Combined with Figure 26A , Figures 32 to 34, according to an embodiment of the present application, the child safety seat includes a seat 10 and further includes: a wind guiding member 604 disposed below the upper cover 101. The wind guiding member 604 has a hollow air duct 6011 and an air outlet port 6047. The air outlet port 6047 is disposed on a side of the wind guiding member 604 facing the upper cover 101 and is in fluid communication with the air duct 6011. The air outlet port 6047 is inserted into the ventilation hole 130, whereby the gas in the air duct 6011 is allowed to flow to the upper surface of the upper cover 101. The support pad assembly 13 is detachably mounted on the upper surface of the upper cover 101.

[0161] Refer to together Figures 28A to 29 , in an embodiment according to the present application, the support pad assembly 13 includes a cavity 134 formed inside the support pad assembly 13 and a ventilation hole 1331 in fluid communication with the cavity 134. The ventilation hole 1331 is in fluid communication with the air outlet port 6047. Thus, gas exchange is allowed between the air duct 6011 of the wind guiding member 604 and the cavity 134 of the support pad assembly 13. In actual use, through the gas exchange between the air duct 6011 and the cavity 134, the heat in the support pad assembly 13 is taken away to achieve the effect of reducing the temperature of the support pad assembly 13. Specifically, in this embodiment, two ventilation holes 130 are provided. The two ventilation holes 130 are respectively disposed on the left and right sides of the upper cover 101, and a wind guiding member 604 is disposed below each ventilation hole 130 to provide a relatively uniform heat dissipation effect on the left and right sides of the upper cover 101. Those skilled in the art can understand that the number and arrangement positions of the ventilation holes 130 and the wind guiding members 604 in this example are only exemplary, and those skilled in the art can select other appropriate numbers and arrangement positions for the ventilation holes 130 and the wind guiding members 604 according to actual needs.

[0162] Continue to refer to Figures 28A to 30 , in an embodiment according to the present application, a connecting member 133 is prominently provided at the lower part of the support pad assembly 13. The ventilation hole 1331 is formed in the connecting member 133. When the support pad assembly 13 is mounted on the seat 10, the connecting member 133 is at least partially inserted into the air outlet port 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 through groove 1311 in the vertical direction. 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 a side of the support pad assembly 13 close to the upper cover 101 to improve the heat exchange efficiency of the support pad assembly 13. As Figure 28BAs shown, the support pad assembly 13 further includes an outer cover that wraps the pad body 131 and the pad core 132. Thus, the outer cover and the portion of the through groove 1311 not occupied by the pad core 132 form a cavity 134. It should be noted that, in order to show the internal features of the support pad assembly 13, the outer cover is omitted in Figure 28A , Figure 36A . When the support pad assembly 13 is installed on the upper cover 101, a part of the connecting member 133 is inserted into the air outlet port 6047 to enter the air duct 6011. At this time, the air duct 6011 is in fluid communication with the cavity 134 through the ventilation holes 1331 in the connecting member 133, thereby realizing the gas exchange between the air duct 6011 and the cavity 134. Specifically, in this embodiment, two connecting members 133 are provided. The two connecting members 133 are both provided on the bottom side of the support pad assembly 13 and extend perpendicular 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 can understand that the number and installation position of the connecting members 133 in this example correspond to the number and installation position of the ventilation holes 130 and the air guiding members 604. In other embodiments, those skilled in the art can select other appropriate numbers and installation positions for the connecting members 133 according to the number and installation position of the ventilation holes 130 and the air guiding members 604. Further, the connecting member 133 can also be used as a guiding member when installing the support pad assembly 13, so as to quickly locate the installation position of the support pad assembly 13 on the upper cover 101.

[0163] Referring to Figure 28A and Figure 28B , in an embodiment according to the present application, the side of the pad body 131 facing away from the upper cover 101 is an arc surface, and the through groove 1311 is provided on the arc surface. The outer cover can be wrapped outside the pad body 131. When the user sits on the seat 10, the body contacts the outer cover, and the comfort is relatively high. The pad core 132 is made of a breathable material to improve the breathability and further enhance the riding comfort. In this embodiment, the position of the through groove 1311 is generally set at the position of the user's buttocks or back. The pad core 132 is arranged in the through groove 1311 to play a supporting role and reduce the fatigue feeling during long-term riding. Optionally, the part of the outer cover corresponding to the through groove can be made of a material or structure with better air permeability, such as mesh cloth, to further improve the air permeability of this area and provide a better riding experience. In this embodiment, the pad body 131 and the pad core 132 are separately provided, and the user can replace the pad core 132 with different performances (such as materials, hardness, etc.) according to actual needs. In other embodiments, the pad body 131 and the pad core 132 can also be integrally formed to improve the installation convenience. Optionally, as Figure 26B shown, a seat cushion 135 can also be installed on the upper surface of the support pad assembly 13. For example, to improve the riding comfort or to be suitable for a younger baby. As Figure 28BAs shown, in one embodiment, the seat cushion 135 can be detachably connected to the support cushion assembly 13, for example, by connection mechanisms such as buttons, Velcro, etc.; in other embodiments, the seat cushion 135 can also be designed as a structure integrated with the support cushion assembly 13.

[0164] Referring together to Figures 32 to 34 , in an embodiment according to the present application, the air guiding member 604 includes an upper air duct cover 6042 and a lower air duct cover 6043 that are inserted and snapped together with each other, and an air duct 6011 is formed between the upper air duct cover 6042 and the lower air duct cover 6043. Compared with the air guiding member 604 in the foregoing embodiment, the air guiding member 604 in this embodiment is further provided with a protruding air outlet port 6047 on the side facing the upper cover 101, and the air outlet port 6047 is inserted into the ventilation hole 130 of the upper cover 101.

[0165] Combined with Figure 30 and Figure 33, in an embodiment according to the present application, a fan 602 is provided at one end of the air guide member 604, and the fan 602 is in fluid communication with the air duct 6011 of the air guide member 604. The rotation of the fan 602 generates the power for the gas flow in the air duct 6011. A plurality of second ventilation holes 6044 are provided in the upper part of the air guide member 604, and the ventilation hole 130 is located between the fan 602 and the second ventilation holes 6044. The connecting member 133 includes, for example, a windward portion 1332 facing the fan 602 and a wind blocking portion 1333 facing away from the fan 602, for example. The windward portion 1332 is arranged to be in fluid communication with the ventilation hole (1331). Specifically, the windward portion 1332 is provided with an opening 13321, and the opening 13321 is in fluid communication with the ventilation hole 1331. The wind blocking portion 1333 is arranged to block the fluid communication between the fan 602 and the ventilation hole 130. Specifically, the wind blocking portion 1333 is used to hinder the flow of the air current in the part of the air duct 6011 away from the fan 602 and the wind blocking portion 1333. Thus, when the support pad assembly 13 is installed on the seat 10, the connecting member 133 blocks the air duct between the fan 602 and the second ventilation holes 6044. Only a very small part (even basically none) of the air current generated by the fan 602 flows out of the air duct 6011 through the second ventilation holes 6044, but the vast majority (even substantially all) enters the cavity of the support pad assembly 13 through the opening 13321 of the windward portion 1332, and finally completes the gas exchange with the outside of the child safety seat through the micropores on the outer covering material. In this way, the air current generated by the fan 602 is maximally utilized to take away the heat in the support pad assembly 13, so as to optimize the effect of reducing the temperature of the support pad assembly 13. Optionally, the end of the part of the connecting member 133 inserted into the ventilation hole 130 away from the support pad assembly 13 contacts the inner wall of the side of the air guide member 604 opposite to the ventilation hole 130, so as to enhance the wind blocking effect of the wind blocking portion 1333 on the air current, further optimize the effect of reducing the temperature of the support pad assembly 13, and improve the riding comfort of children with a smaller body size.

[0166] Reference Figure 31A and Figure 31B, in an embodiment according to the present application, the seat 10 further includes a shielding piece 140, which is disposed on the upper surface of, for example, the upper cover 101 or the seat fabric, and is used to cover a partial area of the upper surface of the upper cover 101. For example, the shielding piece 140 can cover the ventilation holes 130. Optionally, a hole-blocking member 141 is disposed on the shielding piece 140. When the shielding piece 140 covers the ventilation holes 130, the hole-blocking member 141 closes the ventilation holes 130. Optionally, the hole-blocking member 141 has a plug-like structure to embed and close the ventilation holes 130. When the support pad assembly 13 is not installed, the fan 602 communicates with the second ventilation hole 6044 via the air duct 6011. By closing the ventilation holes 130 with the shielding piece 140 and the hole-blocking member 141, the air flow in and out of the ventilation holes 130 can be blocked, increasing the air output at the second ventilation hole 6044 and improving the riding comfort of children with a smaller build. In addition, the opening area of the ventilation holes 130 is larger than the opening area of the second ventilation hole 6044.

[0167] Optionally, in an embodiment according to the present application, the shielding piece 140 is a part of the seat fabric covering the seat 10, and the shielding piece 140 can pivot relative to other parts of the seat fabric. Specifically, the shielding piece 140 is generally rectangular, for example, and the shielding piece 140 can pivot about one of its long edges. In this way, the shielding piece 140 can pivot between an open position and a closed position. In the open position, the hole-blocking member 141 does not close the ventilation holes 130, so that the ventilation holes 1331 can be in fluid communication with the air outlet port 6047. Since the shielding piece 140 is a part of the seat fabric, the shielding piece 140 is always located on the upper cover 101 without worry of being lost. Optionally, the shielding piece 140 is made of the same material as other parts of the seat fabric to reduce the foreign body sensation brought to the occupant.

[0168] Reference Figure 35A and Figure 35B , in an embodiment according to the present application, the connecting member 133 is a cover plate, and the cover plate is pivotally disposed in 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 port 6047, thereby adjusting the ventilation flow rate. Specifically, when the cover plate rotates to completely block the air outlet port 6047, the cover plate reaches the first position. For example, reference Figure 35B , when the cover plate is in the first position and completely blocks the air outlet port 6047, at this time, the air flow cannot pass through the air outlet port 6047, so the gas exchange between the support pad assembly 13 and the air duct 6011 is isolated, and the air flow generally flows in the air duct 6011. In actual use, generally, when the support pad assembly 13 does not need to be installed or ventilation and heat dissipation are not required for the support pad assembly 13, the cover plate is pivoted to the first position. Continuing to refer Figure 35A, the cover plate pivots to the second position, completely blocking the air duct 6011. At this time, air flow is allowed to pass through the air outlet port 6047, thereby allowing gas exchange between the support pad assembly 13 and the air duct 6011, and the air flow in the air duct 6011 is blocked by the cover plate. In actual use, generally, when it is necessary for the support pad assembly 13 to provide ventilation and heat dissipation, the cover plate is pivoted to the second position.

[0169] In another embodiment according to the present application, the cover plate can also be disposed within the ventilation hole 130. For example, the cover plate is pivotally connected to the side wall 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 pivots to the first position, the cover plate blocks the ventilation hole 130. At this time, air flow 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 air flow generally flows in the air duct 6011. In actual use, generally, when it is not necessary to install the support pad assembly 13 or when it is not necessary 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 pivots to the second position, the cover plate enters the air duct 6011 through the air outlet port 6047 and completely blocks the air duct 6011. At this time, air flow is allowed to pass through the ventilation hole 130, thereby allowing gas exchange between the support pad assembly 13 and the air duct 6011, and the air flow in the air duct 6011 is blocked by the cover plate. In actual use, generally, when it is necessary for the support pad assembly 13 to provide ventilation and heat dissipation, the cover plate is pivoted to the second position.

[0170] Reference Figure 36A and Figure 36B , in an embodiment according to the present application, a support pad assembly 13 is further provided. Compared with the support pad assembly 13 in the embodiment shown in Figures 26A to 35B , the support pad assembly 13 in this embodiment is provided with two through slots 1311 spaced apart from each other, and a cushion core 132 is disposed in each of the two through slots 1311 to respectively form a cavity 134, and 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 from each other and not connected to each other, thereby avoiding the following situation: the air flows generated by the fans 602 of the two air guiding members 604 affect each other, for example, generate eddy currents, thereby weakening the gas flow in the through slots 1311, and thus reducing the heat dissipation effect on the support pad assembly 13.

[0171] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope described in this specification.

[0172] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A child safety seat, characterized in that: include: A seat (10), comprising an upper cover (101); A plurality of fans (602); as well as a plurality of air guides (604), each having a hollow air duct (6011) and a plurality of vents (6044); the vents (6044) are arranged on a side facing the upper cover (101) and are fluidically connected to the air duct (6011); The plurality of air guides (604) are respectively fluidically connected to the plurality of fans (602); the plurality of air guides (604) are respectively spaced apart on both lateral sides of the upper cover (101); and the plurality of air guides (604) and the upper cover (101) form grooves (6045).

2. The child safety seat according to claim 1, characterized in that: The child safety seat further comprises a fixing plate (605), wherein the fixing plate (605) is fixedly connected to at least two of the plurality of air guides (604), and the fixing plate (605) and the groove (6045) form a channel (6051). The upper cover (101) is provided with a through hole (1015) for the length adjustment end of the safety belt to pass through, and the through hole (1015) is connected to the groove (6045) or the channel (6051).

3. The child safety seat according to claim 2, characterized in that: The air guide member (604) is provided with a bearing rib (6041), and the upper cover (101) is provided with a first rib (1016) extending in a vertical direction, and a bearing hole (1012) is provided on the side wall of the first rib (1016), and the bearing rib (6041) is inserted into the bearing hole (1012) to fix the air guide member (604) on the upper cover (101).

4. The child safety seat according to claim 3, characterized in that: The upper cover (101) is further provided with a second rib (1017) extending in a horizontal direction, the first rib (1016) and the second rib (1017) form a reinforcement groove (1018) in the upper cover (101), and the reinforcement groove (1018) is provided with a ventilation opening (1019). One end of the bearing rib (6041) that passes through the bearing hole (1012) has an air outlet (1013), and the air outlet (1013) is fluidically connected to the air duct (6011) and is fluidically connected to the upper cover (101) through the ventilation opening (1019).

5. The child safety seat according to claim 1, characterized in that: The air guide (604) further comprises an air outlet port (6047) in fluid communication with the air duct (6011), wherein the air outlet port (6047) is closer to the fan (602) than the vent hole (6044). The child safety seat further comprises: A support cushion assembly (13), the support cushion assembly (13) being detachably mounted on the seat (10), the support cushion assembly (13) being formed with a cavity (134) inside, the bottom surface of the support cushion assembly (13) being formed with a vent hole (1331) in fluid communication with the cavity (134), the vent hole (1331) being configured such that when the support cushion assembly (13) is mounted on the seat, the vent hole (1331) is in fluid communication with the air outlet port (6047); and A connecting member (133) is provided on either the seat or the support cushion assembly (13) and is insertable into the air outlet port (6047) to block the fluid communication between the fan (602) and the vent hole (6044).

6. The child safety seat according to any one of claims 1 to 4, characterized in that: The upper cover (101) is provided with a ventilation hole (130). The air guide member (604) is arranged below the upper cover (101), and the air guide member (604) has an air outlet port (6047). The air outlet port (6047) is arranged on a side of the air guide member (604) facing the upper cover (101) and is in fluid communication with the air duct (6011). The child safety seat further comprises: a support cushion assembly (13) which is detachably mounted on the seat (10), a cavity (134) being formed inside the support cushion assembly (13), and a ventilation hole (1331) being fluidically connected to the cavity (134) being formed on the bottom surface of the support cushion assembly (13). Wherein, the ventilation hole (1331) is configured such that when the support cushion assembly (13) is installed on the seat (10), the ventilation hole (1331) is fluidically connected to the air outlet port (6047).

7. The child safety seat according to claim 6, characterized in that: The support pad assembly (13) is provided with a connecting piece (133), the vent hole (1331) is formed in the connecting piece (133), and the connecting piece (133) is at least partially inserted into the air outlet port (6047) to enter the air duct (6011). The connecting member (133) comprises a windward portion (1332) in fluid communication with the air vent (1331) and a wind shielding portion (1333) that blocks the fluid communication between the fan (602) and the air vent (130).

8. The child safety seat according to claim 6, characterized in that: Also includes: A shielding sheet (140) is pivotally arranged on the upper surface of the upper cover (101) or on the seat cloth, and a hole blocking member (141) is arranged on one side of the shielding sheet (140). Wherein, the shielding piece (140) is capable of pivoting between an open position and a closed position. In the closed position, the hole blocking member (141) closes the ventilation hole (130). In the open position, the hole blocking member (141) does not close the ventilation hole (130), so that the air vent (1331) can be fluidically connected to the air outlet port (6047).

9. The child safety seat according to claim 6, characterized in that: The air guide member (604) comprises an air duct upper cover (6042) and an air duct lower cover (6043), wherein the air duct upper cover (6042) and the air duct lower cover (6043) are buckled with each other to form the air duct (6011). The child safety seat further comprises: a connecting member (133) which is pivotally connected to the air duct upper cover (6042) and is capable of pivoting between a first position for blocking the air outlet port (6047) and a second position for blocking the air duct (6011).

10. The child safety seat according to claim 6, characterized in that: The support pad assembly (13) comprises: A pad body (131) provided with a through groove (1311); A cushion core (132) disposed in the through groove (1311); and The thickness of the cushion core (132) is smaller than the depth of the through groove (1311), so that when the cushion core (132) is disposed in the through groove (1311), the cavity (134) is formed in the through groove (1311).

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