Isofix connecting assembly and safety seat

Abstract

The present application discloses an ISOFIX connecting assembly and a safety seat. The ISOFIX connecting assembly comprises a housing, a fixing member detachably installed at the end of the housing, and a connecting wire harness; one end of the connecting wire harness is arranged in the housing, and the other end of the connecting wire harness sequentially passes through the housing and the fixing member to extend out of the housing; when the fixing member is installed at the end of the housing, the fixing member is suitable for matching the housing, so as to clamp and fix the connecting wire harness, thereby facilitating arrangement of the connecting wire harness; during the use of the ISOFIX connecting assembly and the safety seat, the issue of the connecting wire harness being shook due to a jolt of a vehicle, causing loosening between an interface of the connecting wire harness and an electrical element connected, affecting the normal use of the ISOFIX connecting assembly and safety seat can be avoided.

Description

ISOFIX connection assembly and safety seat Technical Field

[0001] The present application relates to the technical field of child safety seats, and in particular to an ISOFIX connection assembly and a safety seat. Background Art

[0002] A child safety seat in a car is a seat specially designed for children of different ages (or heights) and installed in the car. It can effectively improve the safety of children riding in a car. At present, most child safety seats are installed on car seats through ISOFIX connection components. The ISOFIX connection components mainly include ISOFIX connection connectors. The reliability of the connection between the connection connector and the car seat is directly related to the safety of the child riding in the car. In order to improve the safety of children riding in safety seats, child safety seats began to set up detection systems in the ISOFIX connection connectors. The detection system can detect whether the ISOFIX connection connector and the car seat are properly connected. If the ISOFIX connection connector and the car seat are not properly connected, the detection system can sound an alarm through the external alarm device connected to it to remind the operator that the child safety seat is not properly installed.

[0003] The detection system includes multiple sensors. Due to the small internal space of the ISOFIX connection component, the sensors can only be electrically connected to the external power supply device and the external alarm device through the connecting harness. The ISOFIX connection component on the existing safety seat cannot fix the connecting harness. The bumps generated during the vehicle's driving will cause the connecting harness to shake, causing the interface between the connecting harness and the sensor or external device to loosen, thereby affecting the normal use of the detection system. The user will not be able to accurately know whether the safety seat is installed in place.

[0004] Summary of the Invention

[0005] One object of the present application is to provide an ISOFIX connection assembly to solve the problem that the existing ISOFIX connection assembly cannot fix the connection harness.

[0006] Another object of the present application is to provide a safety seat.

[0007] To achieve the above objectives, the technical solution adopted in this application is: an ISOFIX connection assembly, comprising:

[0008] case;

[0009] a fixing member, the fixing member being detachably mounted on an end portion of the housing;

[0010] and a connecting harness, one end of which is disposed inside the housing, and the other end of which sequentially passes through the housing and the fixing member and extends to the outside of the housing;

[0011] When the fixing member is installed at the end of the shell, the fixing member is suitable for cooperating with the shell to clamp and fix the connecting wire harness; when the fixing member is separated from the end of the shell, the fixing member is suitable for separating from the shell to release the clamping fixation of the connecting wire harness.

[0012] As a preference, the shell includes a combining end and a fixed end arranged opposite to each other, the fixing piece can be detachably installed on the fixed end, the fixed end is provided with a first fixing hole for the connecting wiring harness to pass through, and the fixing piece is provided with a second fixing hole for the connecting wiring harness to pass through, when the fixing piece is installed on the fixed end, the first fixing hole and the second fixing hole are staggered, so that the first fixing hole and the second fixing hole can clamp and fix the connecting wiring harness.

[0013] As another preferred embodiment, when the fixing member is installed on the fixing end portion, the projection of the second fixing hole on the fixing end surface partially overlaps with the first fixing hole.

[0014] Further preferably, the first fixing hole is arranged at the center of the fixing end portion, or the second fixing hole is arranged at the center of the end surface of the fixing member.

[0015] Furthermore, the fixed end portion includes a first end face and a positioning portion arranged on the first end face, the positioning portion extends outward along the length direction of the shell, and the fixing member includes a second end face and a positioning cavity formed by an inward depression of the second end face. When the fixing member is installed on the fixed end portion, the first end face and the second end face fit each other, and the positioning portion is embedded in the positioning cavity and cooperates with the positioning cavity to limit the rotation of the fixing member around the axis of the shell.

[0016] Furthermore, when the fixing member is installed on the fixing end, the projection of the outer contour of the fixing member along the length direction of the shell coincides with the outer contour of the shell.

[0017] Furthermore, a connecting portion is provided on the fixing member, and a matching portion is provided on the shell. The connecting portion is suitable for being engaged with the matching portion, so that when the external force does not exceed a preset value, the fixing member can be installed on the shell by engaging the connecting portion with the matching portion.

[0018] Furthermore, the shell further includes a first shell and a second shell that are plugged into each other, and the first shell and the second shell are both provided with the matching parts. When the fixing piece is mounted on the first shell and the second shell, the multiple connecting parts on the fixing piece are respectively and simultaneously engaged with the matching parts on the first shell and the second shell.

[0019] Furthermore, the first shell and the second shell are plugged into each other along the width direction of the ISOFIX connection assembly, and the assembly direction of the fixing member and the first shell and the second shell is perpendicular to the assembly direction of the first shell and the second shell.

[0020] Another aspect of the present application is to provide a safety seat comprising the above-mentioned ISOFIX connection assembly.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The present application includes a shell and a fixing member disposed on a fixed end portion of the shell. The fixed end portion of the shell is provided with a first fixing hole for the connection harness to pass through, and the fixing member is provided with a second fixing hole for the connection harness to pass through. When the fixing member is installed on the fixed end portion of the shell, the first fixing hole and the second fixing hole are staggered and matched to clamp and fix the connection harness, that is, the first fixing hole and the second fixing hole can limit the movement of the connection harness within the shell. The shell and the fixing member are relatively simple in structure, and the connection harness can be clamped and fixed without the use of additional components such as cable ties. This facilitates the routing of the connection harness and also prevents the interfaces connecting the two ends of the connection harness to the detection unit and external components from loosening due to the movement of the connection harness within the shell, thereby ensuring that the connection harness is reliably connected to the detection unit and external components. The detection unit can prompt the user whether the safety seat is installed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the three-dimensional structure of the ISOFIX connection assembly of the present application;

[0024] FIG2 is a cross-sectional schematic diagram of the ISOFIX connection assembly of the present application;

[0025] FIG3 is a cross-sectional view of the ISOFIX connection assembly of the present application when the fixing member is separated from the housing;

[0026] FIG4 is a partial enlarged view of point A in FIG2 .

[0027] In the figure: 100, ISOFIX connection assembly; 200, shell; 210, coupling end; 211, notch; 220, fixing end; 221, first end face; 222, positioning portion; 223, first fixing hole; 230, matching portion; 240, first shell; 250, second shell; 300, fixing member; 310, second end face; 320, positioning cavity; 330, second fixing hole; 340, connecting portion; 400, connecting harness; 500, connecting buckle; 600, locking member; 700, detection unit; 710, magnet; 720, Hall sensor. DETAILED DESCRIPTION

[0028] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0032] As shown in Figures 1-4, in one embodiment of the ISOFIX connection assembly 100 provided in the present application, the ISOFIX connection assembly 100 is suitable for being fixedly arranged on the bottom of the safety seat. The ISOFIX connection assembly 100 includes a housing 200, a fixing member 300 and a connecting harness 400. Among them, one end of the connecting harness 400 is arranged inside the shell 200 and is electrically connected to the detection unit 700 inside the shell 200. The other end of the connecting harness 400 passes through the shell 200 and the fixing member 300 in sequence and extends to the outside of the shell 200, and is electrically connected to external components, so that the detection unit 700 is electrically connected to external components through the connecting harness 400; the fixing member 300 is detachably installed at the end of the shell 200. When the fixing member 300 is installed at the end of the shell 200, the fixing member 300 cooperates with the shell 200 to clamp and fix the connecting harness 400; when the fixing member 300 is separated from the end of the shell 200, the fixing member 300 is separated from the shell 200 to release the clamping fixation of the connecting harness 400. The connection harness 400 is clamped and fixed by the fixing member 300 and the end of the housing 200. The ISOFIX connection assembly 100 does not require additional components such as cable ties and cable ties, thereby simplifying the structure of the ISOFIX connection assembly 100.

[0033] Specifically, the housing 200 further includes a connecting buckle 500, a locking member 600, and a detection unit 700 for detecting whether the ISOFIX connection assembly 100 is properly engaged. The connecting buckle 500 is rotatably disposed within the housing 200 near the coupling end 210. The coupling end 210 includes a notch 211. The ISOFIX connector on the car seat can enter the housing 200 through the notch 211 and engage with the connecting buckle 500 to secure the safety seat. The locking member 600 is adapted to lock and unlock the connecting buckle 500, allowing it to move between a locked position and an unlocked position. When the connecting buckle 500 is in the locked position, it locks the ISOFIX connector it is mating with. When the connecting buckle 500 is in the unlocked position, it releases the ISOFIX connector from the locking member, allowing the ISOFIX connector to separate from the connecting buckle 500. The detection unit 700 is electrically connected to components such as an external alarm device and an external power supply device through the connecting harness 400. The detection unit 700 can output different electrical signals according to changes in the position of the connecting buckle 500. The external alarm device can emit corresponding sound prompts or light prompts based on the electrical signals output by the detection unit 700 to remind the user that the safety seat is not properly installed.

[0034] The detection unit 700 includes a magnet 710 and a Hall sensor 720. The Hall sensor 720 is a magnetic field sensor made based on the Hall effect. The Hall sensor 720 can generate a Hall voltage, which changes with the change of the magnetic field strength. The stronger the magnetic field, the higher the voltage, and the weaker the magnetic field, the lower the voltage.

[0035] Specifically, magnet 710 is positioned near the end of Hall sensor 720 when connecting buckle 500 is in the locked position and moves with connecting buckle 500. Hall sensor 720 is a switch-type Hall sensor 720. The circuit in which switch-type Hall sensor 720 is located normally outputs a status signal of 0, and outputs a status signal of 1 after the magnetic field intensity reaches a certain level. When connecting buckle 500 is in the unlocked position, magnet 710 is far away from Hall sensor 720, and the magnetic field intensity sensed by Hall sensor 720 is low and does not reach a critical value, causing Hall sensor 720 to output a status signal of 0. When connecting buckle 500 moves from the unlocked position to the locked position, magnet 710 moves with connecting buckle 500 toward Hall sensor 720, causing the magnetic field intensity sensed by Hall sensor 720 to increase and reach a critical value, causing Hall sensor 720 to output a status signal of 1. The status signal output by the Hall sensor 720 is received by external components through the connecting harness 400. The external components detect the position of the connecting buckle 500 based on the status signal output by the Hall sensor 720, and control the alarm device to emit a sound prompt or light prompt when the connecting buckle 500 has not reached the locked position, reminding the user that the safety seat is not installed in place, which helps the user to complete the installation of the child safety seat more quickly, effectively and safely.

[0036] Furthermore, the housing 200 is an elongated cube with a square cross-section. The housing 200 includes a coupling end 210 connected to the ISOFIX connector on the car seat and a fixed end 220 connected to the fixing member 300. The coupling end 210 and the fixed end 220 are respectively arranged at opposite ends of the housing 200, and the fixing member 300 is detachably mounted on the fixed end 220 of the housing 200. The fixed end 220 includes a first end face 221 and a positioning portion 222 arranged on the first end face 221. The positioning portion 222 extends outward along the length direction of the housing 200. The positioning portion 222 is hollow inside and communicates with the inner cavity of the housing 200. The outer contour of the positioning portion 222 is smaller than the outer contour of the housing 200. The fixing member 300 includes a second end face 310 and a positioning cavity 320 formed by an inward depression of the second end face 310. The shape of the positioning cavity 320 is the same as that of the positioning portion 222. Furthermore, when the fixing member 300 is installed on the fixed end 220, the first end face 221 and the second end face 310 fit together, the positioning portion 222 is embedded in the positioning cavity 320, and the side wall of the positioning portion 222 fits together with the inner wall of the positioning cavity 320, thereby realizing the connection between the fixing member 300 and the fixed end 220 of the shell 200 while limiting the rotation of the fixing member 300 around the axis of the shell 200. In some preferred embodiments, the cross-section of the positioning portion 222 and the positioning cavity 320 is square.

[0037] The outer contour of the fixing member 300 is the same as the outer contour of the shell 200. Therefore, when the fixing member 300 is installed at the fixed end 220, the projection of the outer contour of the fixing member 300 along the length direction of the shell 200 coincides with the outer contour of the shell 200. That is to say, when the fixing member 300 is installed at the fixed end 220, the outer surface of the fixing member 300 and the outer surface of the shell 200 form a flat end surface, which will not increase the volume of the shell 200.

[0038] It is worth noting that the square cross-section of the shell 200 is only a preferred embodiment, and its shape is not limited to a square, but can also be other polygons such as a rectangle and a hexagon; similarly, the cross-section of the positioning portion 222 and the positioning cavity 320 is not limited to a square, and can be other polygons.

[0039] Furthermore, a first fixing hole 223 is defined on the outer end surface of the positioning portion 222 for the connection harness 400 to pass through, and a second fixing hole 330 is defined on the end surface of the fixing member 300 for the connection harness 400 to pass through. Thus, the connection harness 400 can sequentially pass through the first fixing hole 223 and the second fixing hole 330 to electrically connect to external components. Both the first fixing hole 223 and the second fixing hole 330 are larger than the connection harness 400, allowing the connection harness 400 to easily pass through the first fixing hole 223 and the second fixing hole 330 independently. When the fixing part 300 is installed on the fixed end 220 of the shell 200, the first fixing hole 223 and the second fixing hole 330 are staggered, and the connecting harness 400 is clamped and fastened by the first fixing hole 223 and the second fixing hole 330. The connecting harness 400 without limited fixation will move in the shell 200 due to the bumps of the car during use, resulting in loosening and poor contact between the interfaces at both ends of the connecting harness 400 and the detection unit 700 and external components, making it impossible for the external components to receive the status signal sent by the detection unit 700, and thus unable to prompt the user whether the safety seat is installed in place.

[0040] When the fixing member 300 is installed on the fixed end portion 220, the projection of the second fixing hole 330 on the end face outside the positioning portion 222 partially overlaps with the first fixing hole 223, and then the connecting wire harness 400 that passes through the first fixing hole 223 and the second fixing hole 330 in sequence contacts the first fixing hole 223 and the second fixing hole 330 at the same time. The upper end face of the connecting wire harness 400 contacts the second fixing hole 330, and the lower end face contacts the first fixing hole 223, so that the connecting wire harness 400 passes through the first fixing hole 223 and the second fixing hole 330 in a straight line while both are clamped and fixed. It is worth mentioning that the size of the overlapping area of ​​the projection of the second fixing hole 330 on the end face outside the positioning portion 222 and the first fixing hole 223 is determined according to the wire diameter of the connecting wire harness 400. The overlapping area increases with the increase of the wire diameter and decreases with the decrease of the wire diameter. This allows the first fixing hole 223 and the second fixing hole 330 to clamp and fix the connecting wire harness 400, while the connecting wire harness 400 can pass through the first fixing hole 223 and the second fixing hole 330 in a straight line without bending.

[0041] In some preferred embodiments, the first fixing hole 223 is located at the center of the fixing end 220, and the second fixing hole 330 is located offset from the center of the end face of the fixing member 300. Consequently, regardless of the angle at which the fixing member 300 is installed on the fixing end 220, the projection of the second fixing hole 330 on the fixing end 220 can partially overlap with the first fixing hole 223. This simplifies assembly operations, eliminates the need to install the fixing member 300 on the fixing end 220 at a specific angle, and improves assembly efficiency. Of course, the second fixing hole 330 can also be located at the center of the end face of the fixing member 300, while the first fixing hole 223 is located offset from the center of the fixing end 220.

[0042] In other embodiments, the first fixing hole 223 and the second fixing hole 330 are staggered and have no overlapping parts. At this time, the connecting wire harness 400 bends through the first fixing hole 223 and the second fixing hole 330 and is clamped and fixed by the first fixing hole 223 and the second fixing hole 330.

[0043] A connecting portion 340 is provided on the inner wall of the positioning cavity 320 on the fixing member 300, and a mating portion 230 is provided at a position corresponding to the positioning portion 222 on the housing 200. The connecting portion 340 is adapted to engage with the mating portion 230. Thus, when an external force does not exceed a predetermined value, the fixing member 300 can be installed on the end of the housing 200 by engaging the connecting portion 340 with the mating portion 230. Specifically, the mating portion 230 on the housing 200 is a snap-fit ​​block, and the connecting portion 340 on the fixing member 300 is a snap-fit ​​interface. When the fixing member 300 is installed on the end of the housing 200, the snap-fit ​​block engages within the snap-fit ​​interface, thereby connecting the fixing member 300 to the housing 200. Because the snap-fit ​​block is typically made of elastic plastic, the user can squeeze the snap-fit ​​block to cause it to elastically deform, thereby withdrawing the snap-fit ​​block from the snap-fit ​​interface and removing the fixing member 300.

[0044] As shown in Figures 1-4, the shell 200 further includes a first shell 240 and a second shell 250. The first shell 240 and the second shell 250 are both U-shaped. The first shell 240 and the second shell 250 are plugged into each other, thereby forming a accommodating cavity between the first shell 240 and the second shell 250 for accommodating the connecting buckle 500, the detection unit 700 and the connecting harness 400. The first housing 240 and the second housing 250 are plugged into each other along the width direction of the ISOFIX connection assembly 100. The plugging direction of the first housing 240 and the second housing 250 is perpendicular to the plugging direction of the fixing member 300 and the first housing 240 and the second housing 250. The fixing member 300 is connected to the first housing 240 and the second housing 250 at the same time. When the fixing member 300 is installed on the end of the housing 200, the fixing member 300 is assembled with the first housing 240 and the second housing 250 at the same time. The multiple connecting portions 340 on the fixing member 300 are respectively engaged with the matching portions 230 on the first housing 240 and the second housing 250. As a result, the fixing member 300 will generate a force on the first housing 240 and the second housing 250 to prevent the first housing 240 and the second housing 250 from separating along the width direction of the ISOFIX connection assembly 100. In other words, if you want to separate the first housing 240 and the second housing 250 along the width direction of the battery pack, you must first remove the fixing member 300 from the housing 200. The fixing member 300 is disposed on the fixing end portion 220 of the housing 200 and can also improve the connection strength between the first housing 240 and the second housing 250 .

[0045] Based on the above-mentioned ISOFIX connection assembly 100 , the present application further provides a safety seat, which includes the above-mentioned ISOFIX connection assembly 100 .

[0046] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. An ISOFIX connection assembly, characterized in that: include: case; A fixing member, the fixing member being detachably mounted on an end portion of the housing; and a connecting harness, one end of which is disposed inside the housing, and the other end of which sequentially passes through the housing and the fixing member and extends to the outside of the housing; When the fixing member is installed at the end of the shell, the fixing member is suitable for cooperating with the shell to clamp and fix the connecting wire harness; when the fixing member is separated from the end of the shell, the fixing member is suitable for separating from the shell to release the clamping fixation of the connecting wire harness.

2. The ISOFIX connection assembly according to claim 1, characterized in that: The shell includes a combining end and a fixing end that are arranged opposite to each other, the fixing piece can be detachably installed on the fixing end, the fixing end is provided with a first fixing hole for the connecting wire harness to pass through, and the fixing piece is provided with a second fixing hole for the connecting wire harness to pass through. When the fixing piece is installed on the fixing end, the first fixing hole and the second fixing hole are staggered, so that the first fixing hole and the second fixing hole can clamp and fix the connecting wire harness.

3. The ISOFIX connection assembly according to claim 2, characterized in that: When the fixing member is installed on the fixing end portion, the projection of the second fixing hole on the fixing end surface partially overlaps with the first fixing hole.

4. The ISOFIX connection assembly according to claim 3, characterized in that: The first fixing hole is arranged at the center of the fixing end portion, or the second fixing hole is arranged at the center of the end surface of the fixing member.

5. The ISOFIX connection assembly according to claim 2, characterized in that: The fixed end portion includes a first end face and a positioning portion arranged on the first end face, the positioning portion extends outward along the length direction of the shell, and the fixing member includes a second end face and a positioning cavity formed by the second end face being recessed inwardly. When the fixing member is installed on the fixed end portion, the first end face and the second end face are fitted to each other, and the positioning portion is embedded in the positioning cavity and cooperates with the positioning cavity to limit the rotation of the fixing member around the axis of the shell.

6. The ISOFIX connection assembly according to claim 5, characterized in that: When the fixing member is mounted on the fixing end, a projection of an outer contour of the fixing member along a length direction of the shell coincides with an outer contour of the shell.

7. The ISOFIX connection assembly according to any one of claims 1 to 6, characterized in that: The fixing member is provided with a connecting portion, and the shell is provided with a matching portion, wherein the connecting portion is suitable for being engaged with the matching portion, so that when the external force does not exceed a preset value, the fixing member can be installed on the shell by engaging the connecting portion with the matching portion.

8. The ISOFIX connection assembly according to claim 7, characterized in that: The shell further includes a first shell and a second shell that are plugged into each other, and the first shell and the second shell are both provided with the matching parts. When the fixing member is sleeved on the first shell and the second shell, the multiple connecting parts on the fixing member are respectively and simultaneously engaged with the matching parts on the first shell and the second shell.

9. The ISOFIX connection assembly according to claim 8, characterized in that: The first shell and the second shell are plugged into each other along the width direction of the ISOFIX connection assembly, and the assembly direction of the fixing member and the first shell and the second shell is perpendicular to the assembly direction of the first shell and the second shell.

10. A safety seat, characterized in that: The invention comprises an ISOFIX connection assembly as claimed in any one of claims 1 to 9.

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