Safety belt lock catch, seat and vehicle

Abstract

The embodiment of the utility model provides a safety belt lock catch, a seat and a vehicle, and relates to the technical field of safety belts. The safety belt buckle comprises a shell, a light guide fixing piece, a first light guide and a light source. The shell comprises an inserting end, the inserting end is located at one end of the shell in the first direction, the inserting end is of an opening structure, and the light guide fixing piece is arranged at the inserting end and fixedly connected with the shell. The light guide fixing piece comprises a first part and a second part, the first part and the second part are used for forming an installation opening communicated with the inner cavity of the shell in a surrounding mode, and one end of the first part and one end of the second part are located on one side of the installation opening in the second direction. The other end of the first part and the other end of the second part are located on the other side of the installation opening in the second direction. The first light guide comprises a first light emitting section, the first light emitting section is arranged on the first part, and the first direction is perpendicular to the second direction. In this way, all positions of the light emitting section of the light guide on the safety belt lock catch can emit light evenly.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of seat belts, and in particular to a seat belt buckle, a seat and a vehicle. Background Art

[0002] Seat belts are a type of safety equipment on vehicles that can provide safety protection for drivers and passengers. Seat belts can include a seat belt body, a seat belt insert, and a seat belt buckle. The seat belt insert is inserted into the seat belt body, and the seat belt insert is used to engage with the seat belt buckle. The seat belt body can be used to restrain drivers and passengers sitting on the seat.

[0003] In order to facilitate the insertion of the seat belt insert into the seat belt buckle in the case of insufficient light, in the related art, the seat belt buckle includes a housing and a light guide, wherein the light guide has a light emitting section, and the light emitting section surrounds the housing in a circumferential direction. However, in the related art, the light emitting section is prone to uneven brightness at different positions. Utility Model Content

[0004] The embodiments of the present application provide a seat belt buckle, a seat and a vehicle, which can make the light emission section of the light guide on the seat belt buckle emit light more evenly.

[0005] In a first aspect of an embodiment of the present application, a seat belt buckle is provided, which includes a shell, a light guide fixture, a first light guide and a light source. The shell includes a plug-in end, which is located at one end of the shell in a first direction, and the plug-in end is an open structure, and the light source is arranged in the shell. The light guide fixture is arranged at the plug-in end, and the light guide fixture is fixedly connected to the shell. The light guide fixture includes a first part and a second part, and the first part and the second part are used to surround a mounting port connected to the inner cavity of the shell, one end of the first part and one end of the second part are located on one side of the mounting port in the second direction, and the other end of the first part and the other end of the second part are located on the other side of the mounting port in the second direction. The first light guide includes a first light emitting section and a first light introducing section, one end of the first light introducing section is connected to one end of the first light emitting section, and the other end of the first light introducing section faces the light source, and the light source emits light to one end of the first light introducing section away from the first light emitting section, and the first light emitting section is arranged in the first part. Wherein, the first direction is perpendicular to the second direction.

[0006] The seat belt buckle provided by the embodiment of the present application has a relatively small size in the circumferential direction of the housing, which can make the length of the first light-emitting section provided on the first part shorter, so that the loss of light during propagation in the first light-emitting section is smaller, which is beneficial to improving the uniformity of light emission of the first light-emitting section. In addition, the first part has fewer corners, which can make the first light-emitting section provided on the first part have fewer corners, which is beneficial to reducing the loss of light during propagation in the first light-emitting section and is beneficial to improving the uniformity of light emission of the first light-emitting section. In addition, fewer corners of the first light-emitting section can also make the first light-emitting section not easily break, and the first light-emitting section is not likely to leak light due to breakage, which is beneficial to improving the uniformity of light emission of the first light-emitting section.

[0007] In a possible implementation manner, the number of corners of the first light-emitting section is less than or equal to 2. In this way, the loss of light during propagation in the first light-emitting section is smaller. In addition, the risk of the first light-emitting section breaking is also smaller.

[0008] In a possible implementation manner, the first part includes side segments extending along a second direction at both ends. The side segments are located on one side of the installation opening in a third direction, and the first light-emitting section is provided on the side segments. Wherein, one of the second direction and the third direction is the width direction of the housing, and the other of the second direction and the third direction is the height direction of the housing. The third direction is perpendicular to the second direction, and the third direction is perpendicular to the first direction. In this way, the length of the first light-emitting section can be made shorter and the number of corners can be reduced, which is beneficial to improving the uniformity of light emission of the first light-emitting section.

[0009] In a possible implementation manner, at least part of the first part is a light-transmitting area, and the first light-emitting section is provided in the light-transmitting area. The first light-emitting section is provided on the side of the first part facing the inner cavity of the housing. In this way, the first part can play a role in protecting the first light-emitting section, so that the first light-emitting section is not easily damaged due to being collided.

[0010] In a possible implementation manner, the side of the first part facing the inner cavity of the housing has a clamping structure, and the first light-emitting section is clamped in the clamping structure. In this way, the connection between the first light-emitting section and the first part is relatively convenient.

[0011] In a possible implementation manner, the first part has an insertion plate socket communicating with the inner cavity of the housing. In this way, the first light-emitting section is close to the insertion plate socket, which is beneficial to the light-emitting first light-emitting section indicating the position of the insertion plate socket.

[0012] In a possible implementation manner, the second part has an insertion plate socket communicating with the inner cavity of the housing. In this way, the arrangement of the first light-emitting section is not restricted by the insertion plate socket, and the arrangement of the first light-emitting section can be made more flexible.

[0013] In a possible implementation, the first part and the second part are separate structures. The first part and the second part are respectively fixedly connected to the housing. In this way, when the optical waveguide is assembled onto the optical waveguide fixing member, the degree of bending required is relatively small, and the optical waveguide is not easily broken during the assembly process onto the optical waveguide fixing member.

[0014] In a possible implementation, the seat belt buckle further includes a second optical waveguide. The second optical waveguide includes a second light emitting section and a second light introducing section. The second light emitting section is connected to the second light introducing section, and the second light emitting section is disposed on the second part. In this way, a larger light emitting area can be provided on the optical waveguide fixing member, facilitating the illumination around the plug socket. In addition, both the first light emitting section and the second light emitting section have relatively short lengths and fewer corners, and the light emission of both the first light emitting section and the second light emitting section is relatively uniform.

[0015] In a possible implementation, one end of the second light introducing section is connected to one end of the second light emitting section, and the other end of the second light introducing section and the end of the first light introducing section facing away from the first light emitting section face the same light source, and the light source emits light into the end of the first light introducing section facing away from the first light emitting section and the end of the second light introducing section facing away from the second light emitting section.

[0016] In a possible implementation, the plug end is provided with a first light blocking portion and a second light blocking portion, and the first light blocking portion and the second light blocking portion are respectively disposed on both sides of the plug end in the second direction. The first part is located on one side of the first light blocking portion and the second light blocking portion in the third direction, and the second part is located on the other side of the first light blocking portion and the second light blocking portion in the third direction. The first part, the first light blocking portion, the second part, and the second light blocking portion enclose to form an installation opening. In this way, the first light blocking portion and the second light blocking portion can block the light emitted by the first light emitting section and the second light emitting section to form two non-light emitting positions, facilitating the positioning of the plug socket.

[0017] In a possible implementation, the housing includes a first cover shell and a second cover shell. The first cover shell is covered on one side of the second cover shell in the third direction. The first light blocking portion and the second light blocking portion are fixedly connected to the first cover shell. One of the first cover shell and the second cover shell is fixedly connected to the first part, and the other of the first cover shell and the second cover shell is fixedly connected to the second part. In this way, the assembly of the first light blocking portion, the second light blocking portion, the first part, and the second part is relatively convenient.

[0018] In a possible implementation, the seat belt buckle further includes a button and a locking mechanism. The locking mechanism is disposed inside the housing, and the button is disposed inside the mounting opening, making it easier to install the optical waveguide fixing member and the button for triggering the locking mechanism. The locking mechanism is used to engage with the seat belt plug, so as to realize the engaging connection between the seat belt plug and the seat belt buckle, enabling the seat belt webbing to restrain the occupants sitting on the seat. The button pressed to a preset position is used to disengage the engaged seat belt plug from the locking mechanism, so as to disconnect the seat belt plug from the seat belt buckle and release the restraint of the seat belt webbing on the occupants sitting on the seat.

[0019] In a possible implementation, the seat belt buckle further includes a detection device. The detection device is disposed on the locking mechanism and is used to detect the engagement state of the locking mechanism. Wherein, the engagement state includes the state of engaging with the seat belt plug and the state of not engaging with the seat belt plug. In this way, it is convenient to know the engagement state of the locking mechanism, so as to realize relevant control according to the engagement state of the locking mechanism.

[0020] In a possible implementation, the light source is a light source with variable emission color. In this way, different information can be provided to the user or different environmental effects can be generated by changing the emission color of the light source.

[0021] The second aspect of the embodiments of the present application provides a seat, which includes the seat belt buckle in any of the above embodiments.

[0022] The third aspect of the embodiments of the present application provides a vehicle, which includes the seat belt buckle in any of the above embodiments. Description of the Drawings

[0023] Figure 1 Schematic diagram of a seat belt buckle provided by an embodiment of the present application;

[0024] Figure 2 Exploded view of a seat belt buckle provided by an embodiment of the present application;

[0025] Figure 3 Schematic diagram of the first optical waveguide of a seat belt buckle provided by an embodiment of the present application;

[0026] Figure 4 Schematic diagram of one end of a seat belt buckle provided with an optical waveguide fixing member according to an embodiment of the present application;

[0027] Figure 5 Schematic diagram of one end of another seat belt buckle provided with an optical waveguide fixing member according to an embodiment of the present application;

[0028] Figure 6Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application;

[0029] Figure 7 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application;

[0030] Figure 8 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application;

[0031] Figure 9 Exploded view of another seat belt buckle provided in the embodiment of the present application;

[0032] Figure 10 Schematic diagram of the second optical waveguide of a seat belt buckle provided in the embodiment of the present application;

[0033] Figure 11 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application;

[0034] Figure 12 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application;

[0035] Figure 13 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application;

[0036] Figure 14 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application;

[0037] Figure 15 Schematic diagram of the cooperation between the first optical waveguide and the second optical waveguide of a seat belt buckle and the first light source provided in the embodiment of the present application.

[0038] Explanation of reference numerals:

[0039] 100, housing; 110, first cover; 120, second cover; 130, first light-shielding part; 140, second light-shielding part;

[0040] 200, optical waveguide fixing member; 210, first part; 211, first side segment; 212, first protruding segment; 213, second protruding segment; 220, second part; 221, second side segment; 222, third protruding segment; 223, fourth protruding segment;

[0041] 310, button; 320, steel cable; 330, locking mechanism; 340, first light source;

[0042] 410, installation port; 420, socket for the plug board;

[0043] 500, the first light guide; 510, the first light-emitting section; 520, the first light-introducing section;

[0044] 600, the second light guide; 610, the second light-emitting section; 620, the second light-introducing section;

[0045] x, the length direction of the housing; y, the width direction of the housing; z, the height direction of the housing. Detailed implementation manners

[0046] The terms used in the implementation manners part of this application are only used to explain the specific embodiments of this application, rather than intended to limit this application. The implementation manners of the embodiments of this application will be described in detail below with reference to the drawings.

[0047] The embodiments of this application provide a vehicle, which may include, but is not limited to, an automobile, a train, an airplane, a ship, etc.

[0048] In the embodiments of this application, the vehicle may include a tool body and one or more seats. The seat includes a seat body for a driver or passenger to sit on, and the seat body is arranged on the tool body.

[0049] Exemplarily, the vehicle is an automobile, and the tool body is a vehicle body.

[0050] Exemplarily, the vehicle is an airplane, and the tool body is an airframe.

[0051] In the embodiments of this application, the vehicle may include a seat belt. The seat belt may include a seat belt body, a seat belt buckle, and a seat belt lock. The seat belt buckle is inserted through the seat belt body, and the seat belt buckle is used for snap connection with the seat belt lock. The seat belt body can be used to restrain the driver or passenger sitting on the seat body.

[0052] In some examples, one or more seat belt locks may be arranged on the tool body. For example, when the vehicle is an automobile, the seat belt lock at the rear seat of the automobile may be arranged on the vehicle body of the automobile.

[0053] In some examples, one or more seats may include seat belt locks, and the seat belt locks may be arranged on the seat body. For example, when the vehicle is an automobile, the front seats of the automobile may include seat belt locks, and the seat belt locks at the front seats of the automobile may be arranged on the seat body.

[0054] In some examples, one or more seat belt bodies may be arranged on the tool body. For example, when the vehicle is an automobile, one or more seat belt bodies may be arranged on the vehicle body of the automobile.

[0055] In some examples, one or more seats may include a seat belt webbing, and the seat belt webbing may be disposed on the seat body. For example, when the transportation vehicle is an airplane, the seats on the airplane may include a seat belt webbing.

[0056] Figure 1 Schematic diagram of a seat belt buckle provided by an embodiment of the present application. Figure 2 Exploded view of a seat belt buckle provided by an embodiment of the present application. Wherein, the x-direction is the length direction of the housing, the y-direction is the width direction of the housing, and the z-direction is the height direction of the housing. The length direction of the housing is perpendicular to the width direction of the housing, the length direction of the housing is perpendicular to the height direction of the housing, and the width direction of the housing is perpendicular to the height direction of the housing.

[0057] As Figure 1 、 Figure 2 shown, in the embodiment of the present application, the seat belt buckle includes a housing 100 and a cable 320. The housing 100 is connected to the cable 320, and the cable 320 is used to be connected to the seat body or the tool body to dispose the seat belt buckle on the seat body or the tool body.

[0058] The housing 100 includes a plug-in end and a connection end. The plug-in end and the connection end are respectively located at two ends of the housing 100 in the first direction. The cable 320 is disposed at the connection end. The plug-in end is an open structure and is used for a part of the seat belt plug to be inserted into the housing 100. Wherein, the first direction is the length direction of the housing 100. That is to say, the length direction of the housing 100 is the direction for the seat belt plug to be inserted and pulled out. The width direction and the height direction of the housing 100 are perpendicular to the insertion and extraction direction of the seat belt plug.

[0059] Exemplarily, the width of the housing 100 is greater than the height of the housing 100.

[0060] In some examples, the length of the housing 100 may be greater than the width of the housing 100.

[0061] In other examples, the length of the housing 100 may be less than the width of the housing 100, and the height of the housing 100 may be less than the length of the housing 100.

[0062] Exemplarily, the connection end has a connection port communicating with the inner cavity of the housing 100. The cable 320 is threaded through the connection port. There may be a connection structure in the housing 100 for connecting with the cable 320. A part of the cable 320 extends into the housing 100 through the connection port and is connected to the connection structure in the housing 100. In this way, it is convenient to firmly connect the cable 320 to the housing 100. In addition, the connection structure is located inside the housing 100 and is not likely to collide with the driver and passengers to cause harm to the driver and passengers.

[0063] In the embodiment of the present application, the seat belt buckle further includes a locking mechanism 330. The locking mechanism 330 is arranged in the housing 100. A part of the seat belt plug can be inserted into the housing 100 through the insertion end. The locking mechanism 330 is used to engage with the seat belt plug, so as to realize the engaging connection between the seat belt plug and the seat belt buckle, so that the seat belt can restrain the occupants sitting on the seat.

[0064] In the embodiment of the present application, the seat belt buckle further includes a button 310. The button 310 is arranged at the insertion end. The button 310 pressed to a preset position is used to release the engagement between the engaged seat belt plug and the locking mechanism 330, so as to release the connection between the seat belt plug and the seat belt buckle, and release the restraint of the seat belt on the occupants sitting on the seat.

[0065] In some possible implementation manners, the housing 100 includes a first cover shell 110 and a second cover shell 120. The first cover shell 110 and the second cover shell 120 are covered and connected to enclose the inner cavity of the housing 100, so that it is more convenient to arrange components such as the locking mechanism 330 in the housing 100.

[0066] To facilitate inserting the seat belt plug into the seat belt buckle in low-light conditions such as at night, in the related art, the seat belt buckle may further include an optical waveguide and a light source. The optical waveguide includes a light-emitting section and a light-introducing section connected to each other. The light-emitting section surrounds the circumference of the housing once. The light source emits light towards the light-introducing section, and the light-introducing section guides the light to the light-emitting section for emission.

[0067] However, in the related art, the length of the light-emitting section is long and there are many corners, the loss of light during propagation in the light-emitting section is large, and the risk of breakage of the light-emitting section is large, so that the problem of uneven brightness at different positions is likely to occur in the light-emitting section.

[0068] Figure 3 Schematic diagram of a first optical waveguide of a seat belt buckle provided in an embodiment of the present application Figure 4 Schematic diagram of one end of an optical waveguide fixing member provided for a seat belt buckle in an embodiment of the present application.

[0069] As Figure 3 、 Figure 4 shown, and referring to Figure 1 、 Figure 2 , based on this, in the embodiment of the present application, the seat belt buckle further includes an optical waveguide fixing member 200, a first optical waveguide 500, and a first light source 340. The first light source 340 is arranged in the housing 100. The optical waveguide fixing member 200 is arranged at the insertion end, and the optical waveguide fixing member 200 is fixedly connected to the housing 100.

[0070] The optical waveguide fixing member 200 includes a first part 210 and a second part 220. The first part 210 and the second part 220 are configured to surround and form an installation opening 410 communicating with the inner cavity of the housing 100. One end of the first part 210 and one end of the second part 220 are located on one side of the installation opening 410 in the second direction, and the other end of the first part 210 and the other end of the second part 220 are located on the other side of the installation opening 410 in the second direction. The first part 210 and the second part 220 are disposed opposite to each other along the third direction. Wherein, one of the second direction and the third direction is the width direction of the housing 100, and the other of the second direction and the third direction is the height direction of the housing 100.

[0071] The first optical waveguide 500 includes a first light-emitting section 510 and a first light-introducing section 520. One end of the first light-introducing section 520 is connected to one end of the first light-emitting section 510, and the other end of the first light-introducing section 520 faces the first light source 340. The first light source 340 emits light into the end of the first light-introducing section 520 that is away from the first light-emitting section 510. The first light-emitting section 510 is disposed on the first part 210, that is to say, the first light-emitting section 510 does not extend to the second part 220.

[0072] In this way, the dimension of the first part 210 along the circumferential direction of the housing 100 is small, which can make the length of the first light-emitting section 510 disposed on the first part 210 short, so that the loss of light during propagation in the first light-emitting section 510 is small, which is beneficial to improving the uniformity of light emission of the first light-emitting section 510. In addition, the first part 210 has fewer corners, which can make the first light-emitting section 510 disposed on the first part 210 have fewer corners, which is beneficial to reducing the loss of light during propagation in the first light-emitting section 510 and is beneficial to improving the uniformity of light emission of the first light-emitting section 510. In addition, fewer corners of the first light-emitting section 510 can also make the first light-emitting section 510 not easily break, and the first light-emitting section 510 is not likely to leak light due to breakage, which is beneficial to improving the uniformity of light emission of the first light-emitting section 510.

[0073] After the light enters the first optical waveguide 500 from the first light-introducing section 520, the first light-introducing section 520 guides the light to the first light-emitting section 510, and the light emits from the first light-emitting section 510 to make the first light-emitting section 510 emit light.

[0074] Exemplarily, the end of the first light-introducing section 520 that is away from the first light-emitting section 510 can be located inside the housing 100.

[0075] Exemplarily, the optical waveguide fixing member 200 can be fixedly connected to the housing 100 by means of snap connection, fastener connection, bonding, welding, etc.

[0076] In some examples, the second direction is the width direction of the shell 100, and the third direction is the height direction of the shell 100, that is, one end of the first part 210 and one end of the second part 220 are located on one side of the mounting port 410 in the width direction of the shell 100, and the other end of the first part 210 and the other end of the second part 220 are located on the other side of the mounting port 410 in the width direction of the shell 100, and the width of the shell 100 is greater than the height of the shell 100.

[0077] In some possible implementations, the button 310 is disposed in the installation opening 410 , so that the light guide fixture 200 and the button 310 for triggering the locking mechanism 330 can be installed more easily.

[0078] In some possible implementations, the optical guide fixture 200 has a plug-in plate socket 420 connected to the inner cavity of the shell 100 , and the plug-in plate socket 420 is used for partially inserting the seat belt plug-in into the shell 100 , so that the luminous first light emission segment 510 indicates the position of the plug-in plate socket 420 .

[0079] In some examples, the plugboard socket 420 is communicated with the installation port 410. In this way, the components of the seat belt buckle can be arranged more compactly, which is conducive to reducing the size of the seat belt buckle.

[0080] In some possible implementations, the number of corners of the first light emitting segment 510 is less than or equal to 2.

[0081] In this way, the light loss during propagation in the first light emitting section 510 is small. In addition, the risk of the first light emitting section 510 being broken is also small.

[0082] In the embodiment of the present application, the first portion 210 includes a first side segment 211 with two ends extending along the second direction, and the first side segment 211 is located on one side of the installation opening 410 in the third direction.

[0083] In some examples, both ends of the first side segment 211 in the second direction are connected to the second portion 220 .

[0084] In other examples, the first part 210 also includes a first extending section 212 and a second extending section 213, which are respectively connected to two ends of the first side section 211 in the second direction, and the first extending section 212 and the second extending section 213 are respectively located on both sides of the mounting opening 410 in the second direction, and the first extending section 212 and the second extending section 213 both protrude from the first side section 211 toward the second part 220 along a third direction, and one end of the first extending section 212 facing away from the first side section 211 and one end of the second extending section 213 facing away from the first side section 211 are connected to the second part 220.

[0085] In an embodiment of the present application, the second part 220 includes second side segments 221 extending along the second direction at both ends, and the first side segment 211 and the second side segments 221 are respectively located on both sides of the mounting opening 410 in the third direction.

[0086] In some examples, both ends of the second side segment 221 in the second direction are connected to the first part 210. For example, both ends of the second side segment 221 in the second direction are respectively connected to one end of the first protruding segment 212 away from the first side segment 211 and one end of the second protruding segment 213 away from the first side segment 211.

[0087] In some examples, the second part 220 further includes a third protruding segment 222 and a fourth protruding segment 223. The third protruding segment 222 and the fourth protruding segment 223 are respectively connected to both ends of the second side segment 221 in the second direction. The third protruding segment 222 and the fourth protruding segment 223 are respectively located on both sides of the mounting opening 410 in the second direction. The third protruding segment 222 and the fourth protruding segment 223 both protrude from the second side segment 221 toward the first part 210 in the third direction. One end of the third protruding segment 222 away from the second side segment 221 and one end of the fourth protruding segment 223 away from the second side segment 221 are connected to the first part 210. For example, one end of the third protruding segment 222 away from the second side segment 221 and one end of the fourth protruding segment 223 away from the second side segment 221 are respectively connected to both ends of the first side segment 211 in the second direction, or one end of the third protruding segment 222 away from the second side segment 221 is connected to one end of the first protruding segment 212 away from the first side segment 211, and one end of the fourth protruding segment 223 away from the second side segment 221 is connected to one end of the second protruding segment 213 away from the first side segment 211.

[0088] As Figure 4 shown, in some possible implementation manners, the first light-emitting segment 510 extends from the first protruding segment 212 along the circumferential direction of the housing 100 to the second protruding segment 213. That is to say, both ends of the first light-emitting segment 510 are respectively located on the first protruding segment 212 and the second protruding segment 213. The first light-emitting segment 510 is disposed on the first protruding segment 212, the first side segment 211, and the second protruding segment 213. In this way, the light-emitting area on the light guide fixing member 200 can be made larger, which is convenient for illuminating the periphery of the socket 420 of the plugboard.

[0089] In some examples where the second direction is the width direction of the housing 100 and the third direction is the height direction of the housing 100, the first protruding segment 212 and the second protruding segment 213 are respectively located on both sides of the mounting opening 410 in the width direction of the housing 100, and the first light-emitting segment 510 extends from one side of the mounting opening 410 in the width direction of the housing 100 to the other side of the mounting opening 410 in the width direction of the housing 100.

[0090] Figure 5 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application for the seat belt buckle.

[0091] As Figure 5 shown, in some other possible embodiments, the first light emitting section 510 is provided on the first side section 211, that is to say, the first light emitting section 510 is located on one side of the mounting opening 410 in the third direction.

[0092] In this way, the length of the first light emitting section 510 can be shorter and the number of corners can be less, which is beneficial to improving the uniformity of the light emission of the first light emitting section 510.

[0093] In the example where the first part 210 includes the first protruding section 212 and the second protruding section 213, the first light emitting section 510 being provided on the first side section 211 means that the first light protruding section does not extend to the first protruding section 212 and the second protruding section 213.

[0094] Exemplarily, the first light emitting section 510 can be a straight line segment or an arc segment.

[0095] In some examples where the second direction is the width direction of the housing 100 and the third direction is the height direction of the housing 100, the first light emitting section 510 is located on one side of the mounting opening 410 in the height direction of the housing 100.

[0096] In some possible embodiments, the first part 210 has a plug socket 420 communicating with the inner cavity of the housing 100, that is to say, the plug socket 420 is located in the first part 210.

[0097] In this way, the first light emitting section 510 is close to the plug socket 420, which is beneficial to the light emitting first light emitting section 510 indicating the position of the plug socket 420.

[0098] Exemplarily, the plug socket 420 is located on the first side section 211, and the plug socket 420 and the first light emitting section 510 are located on the same side of the mounting opening 410 in the third direction.

[0099] Exemplarily, the first light emitting section 510 and the plug socket 420 are oppositely arranged in the third direction, so as to facilitate the light emitting first light emitting section 510 to indicate the position of the plug socket 420.

[0100] Figure 6 Another schematic diagram of one end of the optical waveguide fixing member provided in the embodiment of the present application for the seat belt buckle.

[0101] As Figure 6As shown, in some other possible embodiments, the second part 220 has a plug socket 420 that communicates with the inner cavity of the housing 100. That is to say, the plug socket 420 is located in the second part 220. In this way, the arrangement of the first light-emitting section 510 is not restricted by the plug socket 420, and the first light-emitting section 510 can be arranged more flexibly.

[0102] Exemplarily, the plug socket 420 is located in the second side section 221, and the mounting opening 410 is located between the first light-emitting section 510 and the plug socket 420.

[0103] In some examples where the plug socket 420 is located in the second part 220, both ends of the first light-emitting section 510 can extend to the first protruding section 212 and the second protruding section 213.

[0104] Figure 7 Schematic diagram of another end of the optical waveguide fixing member provided in the embodiment of the present application for a seat belt buckle.

[0105] In some other examples where the plug socket 420 is located in the second part 220, the first light-emitting section 510 can be arranged on the first side section 211. The first light-emitting section 510 and the plug socket 420 are arranged opposite to each other in the third direction, and the first light-emitting section 510 and the plug socket 420 are respectively located on both sides of the mounting opening 410 in the third direction.

[0106] Figure 8 Schematic diagram of another end of the optical waveguide fixing member provided in the embodiment of the present application for a seat belt buckle.

[0107] As Figure 8 shown, in some examples, the second direction is the height direction of the housing 100, and the third direction is the width direction of the housing 100. That is to say, one end of the first part 210 and one end of the second part 220 are located on one side of the mounting opening 410 in the height direction of the housing 100, and the other end of the first part 210 and the other end of the second part 220 are located on the other side of the mounting opening 410 in the height direction of the housing 100. The width of the housing 100 is greater than the height of the housing 100. At this time, the plug socket 420 can be formed by enclosing the first part 210 and the second part 220.

[0108] In some possible embodiments, at least part of the first part 210 is a light-transmitting area, the first light-emitting section 510 is arranged in the light-transmitting area of the first part 210, and the first light-emitting section 510 is arranged on the side of the first part 210 facing the inner cavity of the housing 100.

[0109] In this way, the first part 210 can protect the first light-emitting section 510, so that the first light-emitting section 510 is not easily damaged due to being collided.

[0110] In some possible embodiments, one side of the first part 210 facing the inner cavity of the housing 100 has a first clamping structure (not shown), and the first light emitting section 510 is clamped in the first clamping structure.

[0111] In this way, the connection between the first light emitting section 510 and the first part 210 is relatively convenient.

[0112] Exemplarily, the first clamping structure may include, but is not limited to, a clamping groove structure, a claw structure, etc.

[0113] In some examples, the first part 210 includes a first fixing structural member (not shown) and a first cover plate (not shown). The first fixing structural member is made of a non-light-transmitting material, and the first cover plate is made of a light-transmitting material. The first fixing structural member has a first strip-shaped through hole, and the position of the first strip-shaped through hole is the light-transmitting area of the first part 210. The first light emitting section 510 is disposed at the first strip-shaped through hole, the first cover plate is connected to the first fixing structural member, and the first cover plate seals the first strip-shaped through hole and covers the first light emitting section 510.

[0114] Exemplarily, the first cover plate may include, but is not limited to, an acrylic plate, a glass plate, etc.

[0115] Exemplarily, the first cover plate can be fixedly connected to the first fixing structural member by processes such as bonding and welding.

[0116] Exemplarily, the first clamping structure is disposed on the first fixing structural member, and the first light emitting section 510 is disposed on the first fixing structural member through the first clamping structure.

[0117] In other examples, the first part 210 is made of a light-transmitting material, and all of the first part 210 is a light-transmitting area.

[0118] Figure 9 This is an exploded view of another seat belt buckle provided by an embodiment of the present application. Figure 10 This is a schematic diagram of a second light guide of a seat belt buckle provided by an embodiment of the present application. Figure 11 This is a schematic diagram of one end of a light guide fixing member provided by another seat belt buckle according to an embodiment of the present application.

[0119] As Figures 9 - 11 shown, in some possible embodiments, the seat belt buckle further includes a second light guide 600. The second light guide 600 includes a second light emitting section 610 and a second light introducing section 620. The second light emitting section 610 is connected to the second light introducing section 620. The second light emitting section 610 is disposed in the second part 220, and the first light source 340 or other light sources can emit light into the second light introducing section 620.

[0120] In this way, the light-emitting area on the optical waveguide fixing member 200 can be made larger, facilitating the illumination around the socket 420 of the plug board. In addition, both the first light-emitting section 510 and the second light-emitting section 610 have short lengths and few corners, and the light emission of the first light-emitting section 510 and the second light-emitting section 610 is relatively uniform.

[0121] After the light enters the second optical waveguide 600 from the second light-introducing section 620, the second light-introducing section 620 guides the light to the second light-emitting section 610, and the light emits from the second light-emitting section 610 to make the second light-emitting section 610 emit light.

[0122] In some possible embodiments, the first part 210 and the second part 220 are of a split structure, and the first part 210 and the second part 220 are respectively fixedly connected to the housing 100.

[0123] In this way, it is more convenient to connect the first light-emitting section 510 to the first part 210. When the first optical waveguide 500 is assembled to the first part 210, the degree of bending required is small, and the first optical waveguide 500 is not easily broken during the assembly process to the first part 210. When the seat belt buckle includes the second optical waveguide 600, it is also more convenient to connect the second light-emitting section 610 to the second part 220. When the second optical waveguide 600 is assembled to the second part 220, the degree of bending required is small, and the second optical waveguide 600 is not easily broken during the assembly process to the second part 220.

[0124] One of the first cover 110 and the second cover 120 is fixedly connected to the first part 210, and the other of the first cover 110 and the second cover 120 is fixedly connected to the second part 220.

[0125] For example, one of the first cover 110 and the second cover 120 can be fixedly connected to the first part 210 by means of snap connection, fastener connection, bonding, welding, etc., and the other of the first cover 110 and the second cover 120 can be fixedly connected to the second part 220 by means of snap connection, fastener connection, bonding, welding, etc.

[0126] In some possible embodiments, the plug end is provided with a first light-shielding portion 130 and a second light-shielding portion 140. The first light-shielding portion 130 and the second light-shielding portion 140 are respectively arranged on both sides of the plug end in the second direction. The first part 210 is located on one side of the first light-shielding portion 130 and the second light-shielding portion 140 in the third direction, and the second part 220 is located on the other side of the first light-shielding portion 130 and the second light-shielding portion 140 in the third direction. The first part 210, the first light-shielding portion 130, the second part 220, and the second light-shielding portion 140 enclose to form an installation opening 410.

[0127] In this way, the first light-blocking portion 130 and the second light-blocking portion 140 can block the light emitted from the first light-emitting section 510 and the second light-emitting section 610 to form two non-light-emitting positions, so as to facilitate the positioning of the socket 420 of the plugboard.

[0128] Exemplarily, the first light-blocking portion 130 is located between the first extending section 212 and the third extending section 222, and the second light-blocking portion 140 is located between the second extending section 213 and the fourth extending section 223.

[0129] In some possible implementation manners, the first housing 110 is covered and connected to one side of the second housing 120 in the third direction, and the first light-blocking portion 130 and the second light-blocking portion 140 are fixedly connected to the first housing 110.

[0130] In this way, the assembly of the first light-blocking portion 130, the second light-blocking portion 140, the first part 210 and the second part 220 is relatively convenient.

[0131] Exemplarily, the first light-blocking portion 130 and the second light-blocking portion 140 are of an integral structure with the first housing 110.

[0132] In some other possible implementation manners, the first part 210 and the second part 220 can be of an integral structure.

[0133] In this way, the connection between the optical waveguide fixing member 200 and the housing 100 is relatively convenient.

[0134] In some possible implementation manners, at least part of the second part 220 is a light-transmitting area, the second light-emitting section 610 is arranged in the light-transmitting area of the second part 220, and the second light-emitting section 610 is arranged on one side of the second part 220 facing the inner cavity of the housing 100.

[0135] In this way, the second part 220 can play a role in protecting the second light-emitting section 610, so that the second light-emitting section 610 is not easily damaged due to being collided.

[0136] In some possible implementation manners, one side of the second part 220 facing the inner cavity of the housing 100 has a second clamping structure (not shown), and the second light-emitting section 610 is clamped in the second clamping structure.

[0137] In this way, the connection between the second light-emitting section 610 and the second part 220 is relatively convenient.

[0138] Exemplarily, the second clamping structure can include, but is not limited to, a clamping groove structure, a clamping claw structure, etc.

[0139] In some examples, the second part 220 includes a second fixing structure (not shown) and a second cover plate (not shown). The second fixing structure is made of a non-translucent material, and the second cover plate is made of a translucent material. The second fixing structure has a second strip-shaped through hole, and the position of the second strip-shaped through hole is the light-transmitting area of the second part 220. The second light-emitting section 610 is arranged at the second strip-shaped through hole. The second cover plate is connected to the second fixing structure, and the second cover plate seals the second strip-shaped through hole and covers the second light-emitting section 610.

[0140] Exemplarily, the second cover plate may include, but is not limited to, an acrylic plate, a glass plate, etc.

[0141] Exemplarily, the second cover plate can be fixedly connected to the second fixing structure through processes such as bonding and welding.

[0142] Exemplarily, the second clamping structure is arranged on the second fixing structure, and the second light-emitting section 610 is arranged on the second fixing structure through the second clamping structure.

[0143] In some other examples, the second part 220 is made of a translucent material, and all of the second part 220 is a light-transmitting area.

[0144] In some examples, the first light-emitting section 510 and the second light-emitting section 610 are arranged opposite to each other in the height direction of the housing 100. That is to say, the second direction is the width direction of the housing 100, and the third direction is the height direction of the housing 100.

[0145] In some examples where the first light-emitting section 510 and the second light-emitting section 610 are arranged opposite to each other in the height direction of the housing 100, the second light-emitting section 610 extends from the third protruding section 222 along the circumferential direction of the housing 100 to the fourth protruding section 223. That is to say, the two ends of the second light-emitting section 610 are respectively located at the third light-emitting section and the fourth protruding section 223. The second light-emitting section 610 is arranged on the third protruding section 222, the second side section 221, and the fourth protruding section 223. At this time, the third protruding section 222 and the fourth protruding section 223 are respectively located on both sides of the installation opening 410 in the width direction of the housing 100, and the second light-emitting section 610 extends from one side of the installation opening 410 in the width direction of the housing 100 to the other side of the installation opening 410 in the width direction of the housing 100.

[0146] Figure 12 This is a schematic diagram of another seat belt buckle provided with a light guide fixing member at one end according to an embodiment of the present application.

[0147] Such as Figure 12As shown, in some other examples where the first light-emitting section 510 and the second light-emitting section 610 are oppositely arranged in the height direction of the housing 100, the second light-emitting section 610 is arranged on the second side section 221. At this time, the second light-emitting section 610 is located on one side of the mounting opening 410 in the height direction of the housing 100.

[0148] In an example where the second part 220 includes a third protruding section 222 and a fourth protruding section 223, the second light-emitting section 610 being arranged on the second side section 221 means that the second light-emitting section does not extend to the third protruding section 222 and the fourth protruding section 223.

[0149] Exemplarily, the second light-emitting section 610 can be a straight line segment or an arc segment.

[0150] Figure 13 Schematic diagram of another safety belt buckle provided with one end of an optical waveguide fixing member according to an embodiment of the present application.

[0151] As Figure 13 shown, in some examples, the first light-emitting section 510 and the second light-emitting section 610 are oppositely arranged in the width direction of the housing 100. That is to say, the second direction is the height direction of the housing 100, and the third direction is the width direction of the housing 100.

[0152] In some examples where the first light-emitting section 510 and the second light-emitting section 610 are oppositely arranged in the width direction of the housing 100, the second light-emitting section 610 extends from the third protruding section 222 along the circumferential direction of the housing 100 to the fourth protruding section 223. That is to say, the two ends of the second light-emitting section 610 are respectively located at the third protruding section 222 and the fourth protruding section 223. The second light-emitting section 610 is arranged on the third protruding section 222, the second side section 221, and the fourth protruding section 223. At this time, the third protruding section 222 and the fourth protruding section 223 are respectively located on both sides of the mounting opening 410 in the height direction of the housing 100, and the second light-emitting section 610 extends from one side of the mounting opening 410 in the height direction of the housing 100 to the other side of the mounting opening 410 in the height direction of the housing 100.

[0153] Figure 14 Schematic diagram of another safety belt buckle provided with one end of an optical waveguide fixing member according to an embodiment of the present application.

[0154] As Figure 14 shown, in some examples where the first light-emitting section 510 and the second light-emitting section 610 are oppositely arranged in the width direction of the housing 100, the second light-emitting section 610 is arranged on the second side section 221. At this time, the second light-emitting section 610 is located on one side of the mounting opening 410 in the width direction of the housing 100.

[0155] Figure 15 Schematic diagram of the cooperation between the first light guide and the second light guide of a seat belt buckle provided by an embodiment of the present application and a first light source.

[0156] As Figure 15 shown, in some possible implementation manners, one end of the second light ray introduction section 620 is connected to one end of the second light ray emission section 610, and the other end of the second light ray introduction section 620 faces the first light source 340. That is to say, the other end of the second light ray introduction section 620 and the end of the first light ray introduction section 520 that deviates from the first light ray emission section 510 face the same light source. The first light source 340 emits light into the end of the second light ray introduction section 620 that deviates from the second light ray emission section 610. In other words, the first light guide 500 and the second light guide 600 can be arranged in parallel.

[0157] In this way, the first light source 340 can emit light into the first light guide 500 and the second light guide 600 at the same time, and the setting of light sources in the housing 100 can be reduced. In addition, the number of light sources that need to emit light is small, which is beneficial to reducing energy consumption.

[0158] Exemplarily, the end of the second light ray introduction section 620 that deviates from the second light ray emission section 610 can be located inside the housing 100.

[0159] In some other possible implementation manners, the seat belt buckle may further include a second light source (not shown), and the first light source 340 and the second light source are two different light sources. The end of the second light ray introduction section 620 that deviates from the second light ray emission section 610 faces the second light source. That is to say, the other end of the second light ray introduction section 620 and the end of the first light ray introduction section 520 that deviates from the first light ray emission section 510 face different light sources. The second light source emits light into the end of the second light ray introduction section 620 that deviates from the second light ray emission section 610.

[0160] In this way, it is convenient to independently control the light emission of the first light guide 500 and the second light guide 600.

[0161] In some possible implementation manners, the seat belt buckle further includes a detection device (not shown), and the detection device is arranged on the locking mechanism 330. The detection device is used to detect the engagement state of the locking mechanism 330. Among them, the engagement state includes the state of engaging a seat belt plug and the state of not engaging a seat belt plug.

[0162] In this way, it is convenient to master the engagement state of the locking mechanism 330, so as to realize relevant control according to the engagement state of the locking mechanism 330.

[0163] In some examples, the detection device can be used to detect the impedance of the locking mechanism 330, and detect the engagement state of the locking mechanism 330 by the difference in impedance between the state where the seat belt plug is engaged and the state where the seat belt plug is not engaged.

[0164] In other examples, the detection device can also be a pressure sensor, a position sensor, etc.

[0165] In some possible implementation manners, the vehicle further includes a controller (not shown), the detection device is electrically connected to the controller, the first light source 340 is electrically connected to the controller, and the controller can control the first light source 340 according to the detection result of the detection device.

[0166] In some examples, the seat belt buckle can include a controller, and the controller can be disposed in the housing 100.

[0167] In other examples, the seat belt buckle does not include a controller, and the controller and the seat belt buckle are two independent components. For example, the controller can be a central controller of the vehicle.

[0168] Exemplarily, the controller can be used to obtain the engagement state of the locking mechanism 330, where the engagement state of the locking mechanism 330 is detected by the detection device.

[0169] In some examples, the controller is further configured to issue a first instruction for instructing the first light source 340 to emit light when the locking mechanism 330 is in a state where the seat belt plug is not engaged. The controller is further configured to issue a second instruction for instructing the first light source 340 to stop emitting light when the locking mechanism 330 is in a state where the seat belt plug is engaged.

[0170] In some possible implementation manners, the first light source 340 is a light source with a variable emission color.

[0171] In this way, different information can be provided to the user or different environmental effects can be generated by changing the emission color of the first light source 340.

[0172] In some examples where the first light source 340 is a light source with a variable emission color, the controller is further configured to issue a third instruction for instructing the first light source 340 to emit light of a first color when the locking mechanism 330 is in a state where the seat belt plug is not engaged. The controller is further configured to issue a fourth instruction for instructing the first light source 340 to emit light of a second color when the locking mechanism 330 is in a state where the seat belt plug is engaged. For example, the first color can be white and the second color can be blue.

[0173] Exemplarily, the first light source 340 may include a first sub-light source (not shown) and a second sub-light source (not shown). The first sub-light source is configured to emit light rays of a first color, and the second sub-light source is configured to emit light rays of a second color. The first sub-light source and the second sub-light source emit light toward one end of the first light ray introduction section 520 that is away from the first light ray emission section 510. When the seat belt buckle includes the second light guide 600, the first sub-light source and the second sub-light source also emit light toward one end of the second light ray introduction section 620 that is away from the second light ray emission section 610.

[0174] Exemplarily, both the first sub-light source and the second sub-light source may be light emitting diode light sources.

[0175] Exemplarily, both the first sub-light source and the second sub-light source are electrically connected to the controller. The third instruction is used to instruct the first sub-light source to emit light, and the fourth instruction is used to instruct the second sub-light source to emit light.

[0176] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, or an indirect connection through an intermediate medium, or the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0177] The devices or elements referred to in the embodiments of the present application or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.

[0178] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0179] As used herein, the term "a plurality of" means two or more. As used herein, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " herein generally represents an "or" relationship between the associated objects before and after; in a formula, the character " / " represents a "division" relationship between the associated objects before and after.

[0180] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for convenience of description and are not used to limit the scope of the embodiments of the present application.

[0181] It can be understood that in the embodiments of the present application, the magnitudes of the sequence numbers of the above processes do not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Claims

1. A seat belt buckle, characterized in that: It comprises a housing (100), a light guide fixing member (200), a first light guide (500) and a light source (340); The housing (100) comprises a plug-in end, the plug-in end is located at one end of the housing (100) in a first direction, the plug-in end is an open structure, and the light source (340) is arranged in the housing (100); The light guide fixing member (200) is arranged at the plug-in end, and the light guide fixing member (200) is fixedly connected to the housing (100); The light guide fixing member (200) comprises a first part (210) and a second part (220), the first part (210) and the second part (220) being used to surround a mounting opening (410) communicating with an inner cavity of the housing (100), one end of the first part (210) and one end of the second part (220) being located on one side of the mounting opening (410) in a second direction, and the other end of the first part (210) and the other end of the second part (220) being located on the other side of the mounting opening (410) in the second direction; The first light guide (500) comprises a first light emitting section (510) and a first light introducing section (520), one end of the first light introducing section (520) is connected to one end of the first light emitting section (510), the other end of the first light introducing section (520) faces the light source (340), the light source (340) injects light into one end of the first light introducing section (520) which is away from the first light emitting section (510), and the first light emitting section (510) is arranged on the first portion (210); The first direction is perpendicular to the second direction.

2. The seat belt buckle according to claim 1, characterized in that: The number of corners of the first light emitting segment (510) is less than or equal to 2.

3. The seat belt buckle according to claim 1, characterized in that: The first part (210) comprises side segments (211) with two ends extending along the second direction, the side segment (211) is located on one side of the installation opening (410) in the third direction, and the first light emitting segment (510) is arranged on the side segment (211); One of the second direction and the third direction is the width direction of the shell (100), the other of the second direction and the third direction is the height direction of the shell (100), the third direction is perpendicular to the second direction, and the third direction is perpendicular to the first direction.

4. The seat belt buckle according to claim 1, characterized in that: At least part of the first portion (210) is a light-transmitting area, the first light emitting section (510) is arranged in the light-transmitting area, and the first light emitting section (510) is arranged on a side of the first portion (210) facing the inner cavity of the shell (100).

5. The seat belt buckle according to claim 4, characterized in that: A side of the first part (210) facing the inner cavity of the housing (100) has a snap-fit ​​structure, and the first light emitting section (510) is snap-fitted in the snap-fit ​​structure.

6. The seat belt buckle according to claim 1, characterized in that: The first part (210) has a plug-in board socket (420) communicating with the inner cavity of the housing (100).

7. The seat belt buckle according to claim 1, characterized in that: The second part (220) has a plug-in board socket (420) communicating with the inner cavity of the housing (100).

8. The seat belt buckle according to claim 1, characterized in that: The first part (210) and the second part (220) are separate structures; The first part (210) and the second part (220) are respectively fixedly connected to the housing (100).

9. The seat belt buckle according to any one of claims 1 to 8, characterized in that: Also comprising a second light guide (600); The second light guide (600) comprises a second light emitting section (610) and a second light introducing section (620), the second light emitting section (610) is connected to the second light introducing section (620), and the second light emitting section (610) is arranged in the second part (220).

10. The seat belt buckle according to claim 9, characterized in that: One end of the second light introducing section (620) is connected to one end of the second light emitting section (610), and the other end of the second light introducing section (620) and one end of the first light introducing section (520) facing away from the first light emitting section (510) are directed toward the same light source (340), and the light source (340) emits light toward one end of the first light introducing section (520) facing away from the first light emitting section (510) and one end of the second light introducing section (620) facing away from the second light emitting section (610).

11. The seat belt buckle according to claim 9, characterized in that: The plug-in end is provided with a first light shielding portion (130) and a second light shielding portion (140), and the first light shielding portion (130) and the second light shielding portion (140) are respectively arranged on two sides of the plug-in end in the second direction; The first part (210) is located on one side of the first light blocking part (130) and the second light blocking part (140) in the third direction, and the second part (220) is located on the other side of the first light blocking part (130) and the second light blocking part (140) in the third direction. The first part (210), the first light blocking part (130), the second part (220) and the second light blocking part (140) are arranged to form the installation opening (410).

12. The seat belt buckle according to claim 11, characterized in that: The housing (100) comprises a first cover shell (110) and a second cover shell (120); The first cover shell (110) is covered on one side of the second cover shell (120) in the third direction, the first light blocking portion (130) and the second light blocking portion (140) are fixedly connected to the first cover shell (110), one of the first cover shell (110) and the second cover shell (120) is fixedly connected to the first part (210), and the other of the first cover shell (110) and the second cover shell (120) is fixedly connected to the second part (220).

13. The seat belt buckle according to any one of claims 1 to 8, characterized in that: Also includes a button (310) and a locking mechanism (330); The locking mechanism (330) is arranged in the housing (100), and the button (310) is arranged in the installation opening (410); The locking mechanism (330) is used to engage with the seat belt plug plate, and the button (310) pressed to a preset position is used to release the engaged seat belt plug plate from the locking mechanism (330).

14. The seat belt buckle according to claim 13, characterized in that: Also includes a detection device; The detection device is arranged on the locking mechanism (330), and is used to detect the engagement state of the locking mechanism (330); The engagement state includes a state where the seat belt plug is engaged and a state where the seat belt plug is not engaged.

15. The seat belt buckle according to any one of claims 1 to 8, characterized in that: The light source (340) is a light source with variable luminous color.

16. A seat, characterized in that: Comprising the seat belt buckle as described in any one of claims 1-15.

17. A means of transport, characterized in that: Comprising the seat belt buckle as described in any one of claims 1-15.

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