Stroller and ventilation device

Abstract

The utility model discloses a kind of baby stroller and ventilation device, wherein the baby stroller includes a stroller body and a ventilation device, the stroller body has a backrest, the backrest has a set of ventilation holes, the ventilation device includes a shell, at least one fan and a main control board, the shell has a receiving cavity, at least one air inlet channel and at least one air outlet channel, the air inlet channel and the air outlet channel are communicated in the receiving cavity respectively, the fan has an air inlet and an air outlet, the fan is housed in the receiving cavity of the shell, and the air inlet of the fan and the air inlet channel of the shell are communicated, the air outlet of the fan and the air outlet channel of the shell are communicated, the main control board is housed in the receiving cavity of the shell, the fan is connected to the main control board, the ventilation device is installed on the backrest, the air inlet channel of the shell and the ventilation hole of the backrest are communicated.

Description

Technical Field

[0001] This utility model relates to a stroller, and more particularly to an infant stroller and a ventilation device. Background Technology

[0002] Infant strollers are vehicles used to help parents and other adults carry infants and toddlers when going out. Infant strollers provide a seat and backrest. After the infant sits in the seat, their back can be supported by the backrest. Although such vehicles can ensure that the infant sits stably in the stroller, they also prevent the infant's back from dissipating heat effectively, which can easily lead to a strong feeling of stuffiness, especially in hot environments with high humidity (such as during the rainy season). Sweat accumulating on the back not only makes the infant uncomfortable, but can also cause damage to the infant's skin. In Chinese utility model patent application CN222845362U, the inventor discloses a stroller comprising an integrated backrest and backrest structure. This structure includes a backrest and a back panel, with the backrest located in front of the back panel. The outer edges of the back panel and the backrest are close to each other. Several outer ring connectors are provided between the backrest and the backrest, close to the outer edges of both the backrest and the backrest, and distributed along their respective outer edges to connect and tighten them. A baffle is provided inside the backrest, with its front edge fixedly connected to the back of the backrest, forming a ventilation area inside. In other words, the existing technology attempts to help dissipate heat from an infant's back by creating perforated ventilation areas on the backrest. However, this ventilation method is passive and its effectiveness is poor, failing to meet the required level of ventilation. Utility Model Content

[0003] One objective of this invention is to provide an infant stroller and a ventilation device, wherein the infant stroller has active ventilation capability, and compared with the passively ventilated strollers of the prior art, the infant stroller of this invention can provide a better riding experience.

[0004] One objective of this invention is to provide an infant stroller and a ventilation device, wherein the ventilation device of the infant stroller is installed on the backrest of the stroller body, and the air inlet channel of the housing of the ventilation device is connected to the ventilation hole of the backrest. When the ventilation device is working, it can create air convection between the infant's back and the backrest, thereby providing good ventilation and a better riding experience.

[0005] One objective of this invention is to provide a baby stroller and a ventilation device, wherein the positioning module of the ventilation device can locate the real-time position of the baby stroller to improve the safety of the baby stroller.

[0006] One objective of this invention is to provide a baby stroller and a ventilation device, wherein the backrest provides an air collection chamber, and the ventilation holes of the backrest are respectively connected to the air collection chamber, thereby increasing the ventilation area of ​​the backrest.

[0007] According to one aspect of this utility model, this utility model provides a baby stroller, which includes:

[0008] A trolley body, wherein the trolley body has a backrest, the backrest having a set of ventilation holes; and

[0009] A ventilation device, wherein the ventilation device includes a housing, at least one fan, and a main control board. The housing has a receiving cavity, at least one air inlet channel, and at least one air outlet channel. The air inlet channel and the air outlet channel are respectively connected to the receiving cavity. The fan has an air inlet and an air outlet. The fan is received in the receiving cavity of the housing, and the air inlet of the fan is connected to the air inlet channel of the housing. The air outlet of the fan is connected to the air outlet channel of the housing. The main control board is received in the receiving cavity of the housing, and the fan is connected to the main control board. The ventilation device is installed on the backrest, and the air inlet channel of the housing is connected to the ventilation hole of the backrest.

[0010] According to one embodiment of the present invention, the ventilation device includes a rechargeable battery, which is housed in the receiving cavity of the housing and connected to the main control board.

[0011] According to one embodiment of the present invention, the ventilation device includes a positioning module, which is housed in the receiving cavity of the housing and connected to the main control board.

[0012] According to one embodiment of the present invention, the receiving cavity of the housing is divided into a first cavity, a second cavity, a third cavity, and a fourth cavity. The air inlet channel and the air outlet channel are respectively connected to the first cavity in different directions. The fan is housed in the first cavity, and the main control board is housed in the second cavity. The ventilation device includes a rechargeable battery and a positioning module. The rechargeable battery is housed in the third cavity, and the positioning module is housed in the fourth cavity of the housing. The rechargeable battery and the positioning module are respectively connected to the main control board.

[0013] According to one embodiment of the present invention, the housing has two air inlet channels, two air outlet channels, and two first cavities. The two first cavities are located at opposite ends of the housing. One air inlet channel and one air outlet channel are respectively connected to the first cavity at one end of the housing, and the other air inlet channel and the other air outlet channel are respectively connected to the first cavity at the other end of the housing. Correspondingly, there are two fans. The air inlet and air outlet of one fan are respectively connected to one air inlet channel and one air outlet channel of the housing, and the air inlet and air outlet of the other fan are respectively connected to the other air inlet channel and the other air outlet channel of the housing.

[0014] According to one embodiment of the present invention, the two fans, the rechargeable battery and the positioning module are arranged in a staggered manner.

[0015] According to one embodiment of the present invention, the housing includes a bottom shell, a top cover, and a battery cover. The top cover and the battery cover are respectively installed on opposite sides of the bottom shell. The housing forms a first cavity and a second cavity between the bottom shell and the top cover. The fan is fixed to the top cover and located in the first cavity. The main control board is locked to the top cover and located in the second cavity. The housing forms a third cavity and a fourth cavity between the bottom shell and the battery cover. The rechargeable battery is housed in the third cavity, and the positioning module is housed in the fourth cavity.

[0016] According to one embodiment of the present invention, the housing has an air inlet groove at each of its opposite ends and an opening communicating with the bottom of the air inlet groove. The air inlet groove is formed by the downward depression of the end of the housing. The air inlet channel is connected to the air inlet groove. The backrest of the trolley body has an air collection chamber and at least two openings communicating with the air collection chamber. A set of ventilation holes of the backrest is connected to the air collection chamber. The positions of the two openings of the housing correspond to the positions of the two openings of the backrest.

[0017] According to another aspect of the present invention, the present invention further provides a ventilation device, which includes:

[0018] One main control board;

[0019] A positioning module, wherein the positioning module is connected to the main control board;

[0020] A rechargeable battery, wherein the rechargeable battery is connected to the main control board;

[0021] At least one fan, wherein the fan is connected to the main control board, and the fan has an air inlet and an air outlet; and

[0022] A housing having a receiving cavity, at least one air inlet channel, and at least one air outlet channel, the air inlet channel and the air outlet channel being respectively connected to the receiving cavity, wherein the main control board, the positioning module, the rechargeable battery, and the fan are respectively housed in the receiving cavity of the housing, and the air inlet of the fan is connected to the air inlet channel of the housing, and the air outlet of the fan is connected to the air outlet channel of the housing.

[0023] According to one embodiment of the present invention, the receiving cavity of the housing is divided into a first cavity, a second cavity, a third cavity and a fourth cavity. The air inlet channel and the air outlet channel are respectively connected to the first cavity in different directions. The fan is received in the first cavity, the main control board is received in the second cavity, the rechargeable battery is received in the third cavity, and the positioning module is received in the fourth cavity. Attached Figure Description

[0024] Figure 1 This is a perspective view of a baby stroller according to a preferred embodiment of the present invention.

[0025] Figure 2 This is a perspective view of the infant stroller according to the above-described preferred embodiment of the present invention.

[0026] Figure 3 This is an exploded view of a partial structure of the infant stroller according to the above-described preferred embodiment of the present invention.

[0027] Figure 4 This is an exploded view of another perspective of the partial structure of the infant stroller according to the preferred embodiment of the present invention.

[0028] Figure 5 This is another exploded view of the partial structure of the infant stroller according to the above-described preferred embodiment of the present invention.

[0029] Figure 6 This is a cross-sectional schematic diagram of a location of a partial structure of the infant stroller according to the above-described preferred embodiment of the present invention.

[0030] Figure 7 This is a perspective view of a ventilation device of the infant stroller according to the above-described preferred embodiment of the present invention.

[0031] Figure 8 This is a perspective view of the ventilation device of the infant stroller according to the above-described preferred embodiment of the present invention.

[0032] Figure 9 This is an exploded view of the ventilation device of the infant stroller according to the above-described preferred embodiment of the present invention.

[0033] Figure 10 This is an exploded view of the ventilation device of the infant stroller according to the above-described preferred embodiment of the present invention.

[0034] Figure 11 This is a cross-sectional schematic diagram of the ventilation device of the infant stroller according to the above-described preferred embodiment of the present invention.

[0035] Figure 12 This is a cross-sectional schematic diagram of the ventilation device of the infant stroller according to the above-described preferred embodiment of the present invention. Detailed Implementation

[0036] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0037] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0038] Refer to the accompanying drawings of the specification of this utility model. Figures 1 to 12 A preferred embodiment of the present invention will be disclosed and described in the following description, wherein the stroller includes a stroller body 10 and a ventilation device 20 installed on the stroller body 10. The stroller body 10 serves as a carrier for carrying infants and toddlers. When the ventilation device 20 is in operation, it can create air convection between the back of the infant and the stroller body 10, thereby providing good ventilation and a better riding experience.

[0039] Specifically, the stroller body 10 includes a frame 11, a set of wheels 12, a seat 13, and a backrest 14. The set of wheels 12 are respectively mounted on the bottom of the frame 11, the seat 13 is mounted on the frame 11, and the backrest 14 is mounted on the rear side of the seat 13 and extends upward from the rear side of the seat 13. When an infant sits on the seat 13, the infant's back can rest against the backrest 14. Preferably, the opposite sides of the bottom of the backrest 14 are rotatably mounted on the opposite sides of the rear of the seat 13, so that the relative angle between the backrest 14 and the seat 13 is adjustable.

[0040] In addition, the stroller body 10 further includes an armrest 15, which is U-shaped. The opposite sides of the armrest 15 are rotatably mounted at two connection points of the backrest 14 and the seat 13. When the infant sits on the seat 13 and leans against the backrest 14, the armrest 15 is located in front of the infant's abdomen, and the infant's hands can hold the armrest 15.

[0041] Reference Appendix Figures 7 to 12 The ventilation device 20 includes a housing 21 and at least one fan 22 and a main control board 23 respectively disposed in the housing 21. Specifically, the housing 21 has a receiving cavity 211, at least one air inlet channel 212, and at least one air outlet channel 213, wherein the air inlet channel 212 and the air outlet channel 213 are respectively connected to the receiving cavity 211. The fan 22 has an air inlet 221 and an air outlet 222, wherein the fan 22 is received in the receiving cavity 211 of the housing 21, the air inlet 221 of the fan 22 is connected to the air inlet channel 212 of the housing 21, and the air outlet 222 of the fan 22 is connected to the air outlet channel 213 of the housing 21. The main control board 23 is housed in the receiving cavity 211 of the housing 21, and the fan 22 is connected to the main control board 23. The main control board 23 is used to control the working state of the fan 22.

[0042] Reference Appendix Figures 1 to 6 The stroller body 10 has a backrest 14 with a set of ventilation holes 141. A ventilation device 20 is installed on the backrest 14. For example, a set of screws can be used to secure the housing 21 and the backrest 14 to install the ventilation device 20 on the backrest 14. The air inlet channel 212 of the housing 21 and the ventilation holes 141 of the backrest 14 are connected. When the ventilation device 20 is working, air at the front of the backrest 14 flows sequentially through the ventilation holes 141 of the backrest 14, the air inlet channel 212 of the housing 21, and the air inlet 221 of the fan 22 into the interior of the fan 22, and is discharged through the air outlet 222 of the fan 22. Thus, the stroller of this invention provides active ventilation, offering a better riding experience compared to existing passively ventilated strollers.

[0043] Preferably, the backrest 14 has a mounting groove 142, and the ventilation device 20 is mounted in the mounting groove 142 of the backrest 14 to reliably mount the ventilation device 20 to the backrest 14 and reduce the height of the ventilation device 20 protruding from the backrest 14.

[0044] Reference Appendix Figure 9 , Figure 10 and Figure 12 The housing 21 has a switch hole 214 communicating with the receiving cavity 211. The ventilation device 20 further includes a switch assembly 24, which includes a micro switch 241, a switch cap 242, and a stop member 243. The micro switch 241 is attached to the main control board 23, the switch cap 242 is installed on the housing 21, and a portion of the switch cap 242 extends through the switch hole 214 of the housing 21 to the outside of the housing 21. One end of the stop member 243 is installed on the switch cap 242, and the other end abuts against the micro switch 241. The user can push the stop member 243 toward the micro switch 241 by pressing the switch cap 242. The stop member 243 applies pressure to the micro switch 241 to operate the micro switch 241 and control the working state of the fan 22.

[0045] Preferably, the switch assembly 24 includes a pressure plate 244 having a central plate hole 2441. The pressure plate 244 is mounted on the housing 21 in such a way that the switch cap 242 is clamped between the pressure plate 244 and the housing 21. The abutment 243 passes through the central plate hole 2441 of the pressure plate 244. The pressure plate 244 and the main control board 23 have overlapping portions. In this way, the pressure plate 244 can reliably mount the switch cap 242 onto the housing 21.

[0046] The housing 21 has a pair of LED holes 215 communicating with the receiving cavity 211. The ventilation device 20 further includes a pair of LED assemblies 25, which are mounted on the main control board 23. The LEDs of the LED assemblies 25 extend to the LED holes 215 of the housing 21, or the LEDs of the LED assemblies 25 extend to the outside of the housing 21 through the LED holes 215 of the housing 21. The LEDs of the LED assemblies 25 are used to indicate the working status of the ventilation device 20 for user viewing.

[0047] Furthermore, the ventilation device 20 includes a rechargeable battery 26, which is housed in the receiving cavity 211 of the housing 21 and connected to the main control board 23. When the user presses the switch cap 242 to operate the micro switch 241, the main control board 23 allows the rechargeable battery 26 to supply power to the fan 22, thereby putting the fan 22 into operation. It is understood that when the user presses the switch cap 242 again to operate the micro switch 241, the main control board 23 can control the rotational speed of the fan 22, or the main control board 23 can prevent the rechargeable battery 26 from supplying power to the fan 22, thereby stopping the fan 22.

[0048] The housing 21 has a terminal port 216 communicating with the receiving cavity 211. The ventilation device 20 further includes a terminal block 27, which may be, but is not limited to, a Type-C interface. The terminal block 27 is connected to the main control board 23, and its position corresponds to the position of the terminal port 216 on the housing 21. External power can be supplied to the ventilation device 20 through the terminal block 27. For example, external power can be used to charge the rechargeable battery 26 through the terminal block 27, or external power can be directly supplied to the fan 22. That is, in a specific example of the infant stroller of this utility model, the ventilation device 20 may not be equipped with the rechargeable battery 26. The user can connect a power bank to the terminal block 27 to provide power for the fan 22 to operate.

[0049] It is worth mentioning that the specific way in which the wiring terminal 27 is connected to the main control board 23 is not limited in the infant stroller of this utility model. For example, in the attached... Figures 1 to 12 In this specific example of the infant stroller of the present invention shown, the terminal block 27 is attached to the main control board 23, so that the terminal block 27 is connected to the main control board 23. Optionally, in other examples of the infant stroller of the present invention, a wire or ribbon cable may also connect the terminal block 27 and the main control board 23, so that the terminal block 27 is connected to the main control board 23. Preferably, the terminal block 27 extends to the terminal port 216 of the housing 21.

[0050] Further, please refer to the appendix. Figure 9 and Figure 10 The ventilation device 20 includes a dust cap 29, which is installed on the housing 21 and can block the terminal port 216 of the housing 21 to hide the wiring terminal 27.

[0051] Further, please refer to the appendix. Figure 9 and Figure 10The ventilation device 20 includes a positioning module 28, which is housed in the receiving cavity 211 of the housing 21 and connected to the main control board 23. The positioning module 28 includes a Beidou positioning chip, a GPS positioning chip, or other chips with positioning capabilities, enabling it to locate the stroller's real-time position and improve its safety. It is understood that the positioning data from the positioning module 28 can be sent via network to the mobile phones of the stroller's parents or other adults, allowing them to view the stroller's specific location. Preferably, the rechargeable battery 26 and the positioning module 28 are arranged side-by-side.

[0052] In the appendix Figures 1 to 12 In this specific example of the infant stroller of the present invention, the receiving cavity 211 of the housing 21 is divided into at least a first cavity 21101, a second cavity 21102, a third cavity 21103, and a fourth cavity 21104. The air inlet channel 212 and the air outlet channel 213 are respectively connected to the first cavity 21101 in different directions. Specifically, the air inlet channel 212 is connected to the first cavity 21101 at the rear of the housing 21, and the air outlet channel 213 is connected to the first cavity 21101 at the bottom of the housing 21. The fan 22 is housed in the first cavity 21101 of the housing 21, the main control board 23 is housed in the second cavity 21102 of the housing 21, the rechargeable battery 26 is housed in the third cavity 21103 of the housing 21, and the positioning module 28 is housed in the fourth cavity 21104 of the housing 21. In this way, the spatial distribution of the ventilation device 20 is more reasonable, which is conducive to making full use of the internal space of the ventilation device 20.

[0053] In the appendix Figures 1 to 12In this specific example of the infant stroller of the present invention, the housing 21 has two air inlet channels 212, two air outlet channels 213, and two first cavities 21101. One air inlet channel 212 and one air outlet channel 213 are respectively connected to one first cavity 21101 at one end of the housing 21, and the other air inlet channel 212 and the other air outlet channel 213 are respectively connected to the other first cavity 21101 at the other end of the housing 21. There are two fans 22. The air inlet 221 and the air outlet 222 of one fan 22 are respectively connected to one air inlet channel 212 and one air outlet channel 213 of the housing 21, and the air inlet 221 and the air outlet 222 of the other fan 22 are respectively connected to the other air inlet channel 212 and the other air outlet channel 213 of the housing 21.

[0054] In other words, the two fans 22 are respectively set at opposite ends of the housing 21. In this way, not only is it beneficial to enhance the ventilation capacity of the ventilation device 20, but the two fans 22, the rechargeable battery 26 and the positioning module 28 can be arranged in a staggered manner, which is beneficial to realizing the flattening of the ventilation device 20.

[0055] Further, the housing 21 includes a bottom shell 217, a top cover 218, and a battery cover 219. The top cover 218 is installed on one side of the bottom shell 217 to form the first cavity 21101 and the second cavity 21102 of the housing 21 between the bottom shell 217 and the top cover 218. The fan 22 is installed on the top cover 218 such that the fan 22 is reliably housed in the first cavity 21101 of the housing 21. The main control board 23 is locked to the top cover 218 such that the main control board 23 is reliably housed in the second cavity 21102 of the housing 21. The air inlet channel 212 of the housing 21 is located on the side of the bottom shell 217 away from the top cover 218. That is, the air inlet channel 212 of the housing 21 connects to the first cavity 21101 at the rear of the housing 21. The air outlet channel 213 of the housing 21 is located on the bottom side of the top cover 218. That is, the air outlet channel 213 of the housing 21 connects to the first cavity 21101 at the bottom of the housing 21. Thus, after the ventilation device 20 is installed on the backrest 14, it is not only convenient to connect the air inlet channel 212 of the housing 21 and the ventilation hole 141 of the backrest 14, but also the air outlet channel 213 of the housing 21 faces downward, so that the air outlet channel 213 of the housing 21 is hidden, which helps to improve the aesthetics of the stroller. The battery cover 219 is mounted on the other side of the bottom shell 217 to form the third cavity 21103 and the fourth cavity 21104 of the housing 21 between the bottom shell 217 and the battery cover 219. The rechargeable battery 26, which is housed in the third cavity 21103, and the positioning module 28, which is housed in the fourth cavity 21104, are respectively clamped between the bottom shell 217 and the battery cover 219.

[0056] The switch hole 214 and the lamp bead hole 215 are respectively located on the side of the top cover 218 away from the bottom shell 217, and the terminal port 216 is located on the bottom side of the top cover 218. After the main control board 23 is locked onto the top cover 218, the main control board 23 keeps the switch cap 242 of the switch assembly 24 and the lamp bead of the lamp bead assembly 25 in a position that extends to the outside of the top cover 218 of the housing 21 through the switch hole 214 and the lamp bead hole 215 of the housing 21, and keeps the wiring terminal 27 in a position aligned with the terminal port 216 of the housing 21.

[0057] It is worth mentioning that the specific installation methods of the top cover 218 and the bottom shell 217, as well as the specific installation methods of the battery cover 219 and the bottom shell 217, are not limited in the infant stroller of this utility model. For example, in the attached... Figures 1 to 12 In this specific example of the infant stroller of the present invention shown, a set of screws can be used to mount the top cover 218 to the bottom shell 217 and to mount the battery cover 219 to the bottom shell 217.

[0058] Preferably, the housing 21 includes at least one fan sealing ring 2110, which surrounds the air inlet 221 of the fan 22 and is clamped between the bottom shell 217 and the fan 22 to prevent gaps from forming at the joint between the fan 22 and the bottom shell 217. The housing 21 also includes at least one cover sealing frame 2111, which is clamped between the battery cover 219 and the bottom shell 217 to prevent gaps from forming at the joint between the battery cover 219 and the bottom shell 217.

[0059] Reference Appendix Figure 9 and Figure 10 The top cover 218 has a positioning groove 2181 and a plurality of limiting posts 2182. The positioning groove 2181 surrounds the switch hole 214 of the housing 21, and the limiting posts 2182 are distributed around the positioning groove 2181. The switch cap 242 has a central pressing protrusion 2421, a peripheral positioning protrusion 2422, and a cap groove 2423. The central pressing protrusion 2421 and the cap groove 2423 are located on opposite sides of the switch cap 242, and their positions are opposite. The central pressing protrusion 2421 of the switch cap 242 extends through the switch hole 214 of the housing 21 to the outside of the top cover 218 of the housing 21. The peripheral positioning protrusion 2422 protrudes into the positioning groove 2181 of the top cover 218. The pressure plate 244 has a plurality of limiting holes 2442 around its periphery. Each of the limiting posts 2182 of the top cover 218 is inserted into each of the limiting holes 2442 of the pressure plate 244, so that the pressure plate 244 is reliably stacked on the switch cap 242. One end of the abutment 243 is inserted into the cap groove 2423 of the switch cap 242.

[0060] The top cover 218 further has a pair of mounting slots 2183, which are connected to the lamp bead holes 215 of the housing 21, and the lamp bead assembly 25 is embedded in the mounting slots 2183 of the top cover 218.

[0061] Each end of the top cover 218 has a pair of insert posts 2184, and each fan 22 has two insert holes 223. The pair of insert posts 2184 of the top cover 218 are respectively inserted into the two insert holes 223 of the fan 22. In this way, the fan 22 can be reliably installed on the housing 21 and located in the first cavity 21101 of the housing 21.

[0062] Furthermore, the housing 21 has an air inlet groove 2112 and a slot 2113 communicating with the bottom of the air inlet groove 2112 at opposite ends. The air inlet groove 2112 is formed by the sinking of the end of the housing 21, and the air inlet groove 2112 of the housing 21 is connected to the air inlet channel 212. The backrest 14 has an air collection chamber 143 and at least one opening 144 communicating with the air collection chamber 143. A set of ventilation holes 141 of the backrest 14 are connected to the air collection chamber 143. After the ventilation device 20 is installed on the backrest 14, the slot 2113 of the housing 21 is aligned with the opening 144 of the backrest 14, and the slot 2113 of the housing 21 and the opening 144 of the backrest 14 are connected. Thus, the air inlet channel 212 of the housing 21 is connected to the ventilation hole 141 of the backrest 14. In this way, the ventilation area of ​​the backrest 14 is increased, so that the infant stroller of this utility model has a better ventilation effect.

[0063] Specifically, see the attached document. Figure 4 The backrest 14 includes a back panel 145 and a front panel 146, which are mounted to each other to form the air collection cavity 143 of the backrest 14 between the back panel 145 and the front panel 146. The ventilation hole 141 of the backrest 14 is formed in the front panel 146, and the mounting groove 142 and the cavity opening 144 of the backrest 14 are formed in the back panel 145. It is understood that the back panel 145 may also be provided with the ventilation hole 141.

[0064] It is worth mentioning that the installation method of the back panel 145 and the front panel 146 of the backrest 14 is not limited in the infant stroller of this utility model. For example, a set of screws can be used to install the back panel 145 and the front panel 146.

[0065] The housing 21 of the ventilation device 20 is mounted on the back panel 145. For example, a set of screws can be used to lock the housing 21 to the back panel 145, and a part of the housing 21 is recessed into the mounting groove 142 of the backrest 14. The groove 2113 of the housing 21 corresponds to the cavity 144 of the backrest 14. In this way, the ventilation area of ​​the backrest 14 is increased, so that the infant stroller of this utility model has a better ventilation effect.

[0066] Furthermore, the front panel 146 has a plurality of recessed holes 1461 for exposing a portion of the back panel 145, and the backrest 14 further includes a plurality of strap buckles 147 for connecting seat belts, wherein these strap buckles 147 are respectively mounted to the backrest 145 by a set of screws, and these strap buckles 147 are respectively located in the recessed holes 146 of the front panel 146.

[0067] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the implementation of the present invention may be made without departing from the stated principles.

Claims

1. An infant stroller, characterized in that, include: A trolley body, wherein the trolley body has a backrest, the backrest having a set of ventilation holes; and A ventilation device, wherein the ventilation device includes a housing, at least one fan, and a main control board. The housing has a receiving cavity, at least one air inlet channel, and at least one air outlet channel. The air inlet channel and the air outlet channel are respectively connected to the receiving cavity. The fan has an air inlet and an air outlet. The fan is received in the receiving cavity of the housing, and the air inlet of the fan is connected to the air inlet channel of the housing. The air outlet of the fan is connected to the air outlet channel of the housing. The main control board is received in the receiving cavity of the housing, and the fan is connected to the main control board. The ventilation device is installed on the backrest, and the air inlet channel of the housing is connected to the ventilation hole of the backrest.

2. The stroller according to claim 1, wherein the ventilation device includes a rechargeable battery, the rechargeable battery being housed in the receiving cavity of the housing, and the rechargeable battery being connected to the main control board.

3. The infant stroller according to claim 1, wherein the ventilation device includes a positioning module, the positioning module being housed in the receiving cavity of the housing, and the positioning module being connected to the main control board.

4. The stroller according to claim 1, wherein the receiving cavity of the housing is divided into a first cavity, a second cavity, a third cavity, and a fourth cavity, the air inlet channel and the air outlet channel are respectively connected to the first cavity in different directions, the fan is housed in the first cavity, the main control board is housed in the second cavity, wherein the ventilation device includes a rechargeable battery and a positioning module, the rechargeable battery is housed in the third cavity, the positioning module is housed in the fourth cavity of the housing, and the rechargeable battery and the positioning module are respectively connected to the main control board.

5. The infant stroller according to claim 4, wherein the housing has two air inlet channels, two air outlet channels, and two first cavities, the two first cavities being located at opposite ends of the housing, one air inlet channel and one air outlet channel being connected to the first cavity at one end of the housing, and the other air inlet channel and the other air outlet channel being connected to the first cavity at the other end of the housing; correspondingly, the number of fans is two, the air inlet and air outlet of one fan being connected to one air inlet channel and one air outlet channel of the housing, and the air inlet and air outlet of the other fan being connected to the other air inlet channel and the other air outlet channel of the housing.

6. The infant stroller according to claim 5, wherein the two fans, the rechargeable battery and the positioning module are arranged in a staggered manner.

7. The infant stroller according to claim 4, wherein the housing includes a bottom shell, a top cover, and a battery cover, the top cover and the battery cover are respectively installed on opposite sides of the bottom shell, the housing forms a first cavity and a second cavity between the bottom shell and the top cover, the fan is fixed to the top cover and located in the first cavity, the main control board is locked to the top cover and located in the second cavity, and the housing forms a third cavity and a fourth cavity between the bottom shell and the battery cover.

8. The infant stroller according to claim 5, wherein each of the opposite ends of the housing has an air inlet groove and an opening communicating with the bottom of the air inlet groove, the air inlet groove is formed by the downward depression of the end of the housing, the air inlet channel is connected to the air inlet groove, wherein the backrest of the stroller body has an air collection chamber and at least two openings communicating with the air collection chamber, a set of ventilation holes of the backrest communicating with the air collection chamber, and the positions of the two openings of the housing correspond to the positions of the two openings of the backrest.

9. A ventilation device, characterized in that, include: One main control board; A positioning module, wherein the positioning module is connected to the main control board; A rechargeable battery, wherein the rechargeable battery is connected to the main control board; At least one fan, wherein the fan is connected to the main control board and the fan has an air inlet and an air outlet; as well as A housing having a receiving cavity, at least one air inlet channel, and at least one air outlet channel, the air inlet channel and the air outlet channel being respectively connected to the receiving cavity, wherein the main control board, the positioning module, the rechargeable battery, and the fan are respectively housed in the receiving cavity of the housing, and the air inlet of the fan is connected to the air inlet channel of the housing, and the air outlet of the fan is connected to the air outlet channel of the housing.

10. The ventilation device according to claim 9, wherein the receiving cavity of the housing is divided into a first cavity, a second cavity, a third cavity and a fourth cavity, the air inlet channel and the air outlet channel are respectively connected to the first cavity in different directions, the fan is received in the first cavity, the main control board is received in the second cavity, the rechargeable battery is received in the third cavity, and the positioning module is received in the fourth cavity.

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