Object detection sensor for vehicle-mounted refrigerator

Abstract

The invention relates to the technical field of vehicle-mounted refrigerator detection, and particularly discloses a vehicle-mounted refrigerator article detection sensor which comprises a box body and a detection sensor main body, grooves are symmetrically formed in the outer side of the box body, light-transmitting parts are arranged on the opposite faces of the grooves, mounting frames are integrally connected to groove openings of the grooves, and the mounting frames are arranged in the grooves. And a frame groove is formed in a frame opening of the mounting frame. Compared with a traditional weighing scheme, the infrared mode is adopted, misjudgment can occur when light articles are identified in the weighing mode, due to the fact that the weighing mode belongs to a small deformation mode for weighing and belongs to mechanical movement, the weighing accuracy can be greatly reduced in an extreme environment, especially at low temperature, and the weighing accuracy can be greatly reduced when the articles are detected in the infrared mode in the scheme. The device has the advantages of simple structure, no mechanical motion, longer service life, higher accuracy, good anti-interference performance, low power consumption, capability of distinguishing detection areas and relatively longer service life, and is combined with circuit software and hardware and in the form of cyclic scanning.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted refrigerator detection, in particular to an article detection sensor for a vehicle-mounted refrigerator. Background Art

[0002] New energy vehicles, as a perfect combination of modern technology and environmental protection concepts, are gradually leading the green transformation of the automotive industry. They are mainly driven by electricity or other non-fossil fuels, such as pure electric and plug-in hybrid, which significantly reduce tail gas emissions and are of great significance to improving air quality and mitigating the greenhouse effect. New energy vehicles are not only environmentally friendly and energy-saving, but are also often equipped with advanced intelligent driving assistance systems to improve driving safety and convenience. With the continuous advancement of battery technology and the improvement of charging facilities, the cruising range of new energy vehicles is constantly increasing, and charging is more convenient, becoming the mainstream choice for future travel.

[0003] With the popularity of new energy vehicles, intelligent car products are constantly upgraded, and intelligent car refrigerators will become standard. However, traditional car refrigerators are only used to store items, and users often forget to take items out. If they are left for too long, food and drinks may expire or even become smelly. Currently, weighing is used to identify whether there are items in the box, but this method cannot identify items that are too light, and there are also problems such as expired and smelly items. Summary of the invention

[0004] The object of the present invention is to provide a vehicle-mounted refrigerator article detection sensor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides a vehicle refrigerator article detection sensor, comprising a box body and a detection sensor body, wherein the outer side of the box body is symmetrically provided with grooves, the opposite surface of the groove is provided with a light-transmitting portion, the groove opening is integrally connected with a mounting frame, the frame opening of the mounting frame is provided with a frame groove, the detection sensor body is plugged into the inner side of the frame groove, the outer side of the mounting frame is symmetrically provided with fixing grooves, the inner side of the mounting frame is symmetrically provided with fixing mechanisms, the outer side of the mounting frame is symmetrically provided with limiting mechanisms, the limiting mechanisms and the fixing mechanisms are movably connected, and the fixing mechanisms are clamped with the detection sensor body at the fixing grooves;

[0006] The detection sensor body comprises an integrated shell, a front bumper rubber pad is inserted into the inner side of the integrated shell, an infrared sensing module is encapsulated by potting resin on the inner side of the integrated shell, an infrared pair of tubes of the infrared sensing module movably penetrates the front bumper rubber pad, a fixing block is symmetrically fixedly installed on the outer side of the integrated shell, a clamping hole is opened on the inner side of the fixing block, and the fixing mechanism is clamped with the clamping hole of the fixing block;

[0007] The fixing mechanism comprises an installation slot, the installation slot is symmetrically arranged on the outer side of the installation frame, the inner side of the installation slot is symmetrically slidably connected with a moving block, a clamping block is fixedly arranged on one side of the moving block, the clamping end of the clamping block extends into the inner side of the fixing slot and is clamped with the clamping hole of the fixing block, the inner side of the installation slot is bonded with a mounting shell, the inner side of the mounting shell is symmetrically slidably connected with an end plate, the same first spring is fixedly arranged between the opposite surfaces of the end plate, a connecting rod is fixedly arranged on the side of the end plate away from the first spring, an end of the connecting rod away from the end plate slides through the shell wall of the mounting shell and is fixedly arranged with an insert block, the insert block and the moving block are plug-in connected, a buckle block is fixedly arranged on the outer side of the moving block, a limiting hole is arranged on the inner side of the buckle block, and the limiting mechanism and the limiting hole of the buckle block are movably connected;

[0008] The limiting mechanism includes a baffle, which is bonded to the notch of the mounting groove, and one end of the buckle block away from the moving block movably passes through the baffle, and an assembly shell is fixedly installed on the side of the baffle away from the mounting groove, and a positioning hole is symmetrically opened on the inner side of the assembly shell, and a mounting plate is slidably connected to the inner side of the assembly shell, and the end of the mounting plate slides through the positioning hole, and a second spring is symmetrically fixedly installed between the mounting plate and the assembly shell, and a pressing block is fixedly installed on the side of the mounting plate away from the second spring, and one end of the pressing block away from the mounting plate slides through the inner wall of the assembly shell, and a limiting clamp is provided at the end of the mounting plate, and the mounting plate is movably connected with the limiting hole of the buckle block through the limiting clamp.

[0009] Furthermore, a positioning frame is fixedly installed on the inner side of the installation groove, and the installation shell is plugged into the inner side of the positioning frame.

[0010] Furthermore, a connecting groove is provided on one side of the shifting block facing the notch of the installation groove, and the inserting block is plug-connected with the shifting block through the connecting groove.

[0011] Furthermore, a positioning groove is provided at the notch of the installation groove, and the baffle is bonded to the inner side of the positioning groove.

[0012] Furthermore, a square hole is provided on the inner side of the baffle, and one end of the buckle block away from the shifting block movably passes through the square hole.

[0013] Furthermore, a slide bar is symmetrically fixedly mounted on the inner side of the assembly shell, and the mounting plate is slidably connected to the outer side of the slide bar.

[0014] Furthermore, a sealing groove is opened on the inner side of the frame groove, a sealing ring is bonded to the outer side of the integrated housing, the sealing ring is arranged on the inner side of the sealing groove, a round hole is opened on the inner side of the front bumper rubber pad, and the infrared pair tube of the infrared sensing module slides through the round hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] First, the present invention can identify light objects by using infrared method compared with the traditional weighing scheme. The weighing method may make misjudgments when identifying light objects, because the weighing method belongs to the weighing method of micro deformation, which belongs to mechanical movement. In extreme environments, especially low temperatures, the weighing accuracy will be greatly reduced. The present scheme detects objects in the form of infrared, without mechanical movement, longer life, higher accuracy, and combines circuit software and hardware, using the form of cyclic scanning, good anti-interference, low power consumption, and can distinguish the detection area, and the service life is relatively higher;

[0017] Secondly, in the present invention, the fixed block part on the detection sensor body is inserted into the fixed groove of the installation frame. During the insertion process, the fixed block is squeezed along the inclined surface of the card block at the fixed groove, and the card block is connected by the moving block and the inserting block. At the same time, the end plates connected by the connecting rod of the inserting block are close to each other to squeeze the first spring in the installation shell until the card hole on the fixed block corresponds to the card block. At this time, under the elastic reset action of the first spring, the card block at the moving block is inserted into the fixed block, so that the detection sensor body can be easily and quickly installed and used;

[0018] Thirdly, in the present invention, by pinching the buckle blocks located on both sides of the installation frame at the same time, the buckle blocks move relatively close to each other, and when the buckle blocks contact the limiting clamp, the limiting hole on the buckle blocks slides along the inclined portion of the limiting clamp under the extrusion effect, and at the same time, the mounting plate connected to the limiting clamp slides in the assembly shell and compresses the second spring until the limiting clamp passes over the limiting hole. Then, the buckle blocks are limited under the resetting action of the second spring, and at this time, the buckle blocks are separated from the clamping hole of the fixed block through the clamping block connected by the moving block. At this time, the detection sensor body can be conveniently and directly removed from the installation frame on the box body for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the sensorless main structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 It is a partial exploded view of the fixing mechanism in the present invention;

[0023] Figure 5 It is a schematic diagram of the internal structure of the installation shell in the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the assembly shell in the present invention;

[0025] Figure 7It is an exploded view of the sensor body in the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle.

[0027] In the figure: 1, box body; 2, installation frame; 201, frame groove; 202, sealing groove; 203, fixing groove; 3, detection sensor body; 301, clamping hole; 302, fixing block; 303, front guard rubber pad; 304, infrared sensing module; 305, integrated shell; 4, fixing mechanism; 401, installation groove; 402, buckle block; 403, shift block; 404, clamping block; 405, limit hole; 406, installation shell; 407, Connecting rod; 408, plug block; 409, end plate; 4010, first spring; 5, limiting mechanism; 501, baffle; 502, positioning hole; 503, mounting plate; 504, second spring; 505, pressing block; 506, assembly shell; 507, limiting clamp; 6, groove; 601, light-transmitting part; 7, connecting groove; 8, positioning frame; 9, positioning groove; 10, sliding rod; 11, square hole; 12, round hole; 13, sealing ring. DETAILED DESCRIPTION

[0028] Example

[0029] See also Figure 1-Figure 8 In an embodiment of the present invention, a vehicle-mounted refrigerator article detection sensor comprises a box body 1 and a detection sensor body 3, a groove 6 is symmetrically provided on the outer side of the box body 1, a light-transmitting portion 601 is provided on the opposite side of the groove 6, a mounting frame 2 is integrally connected to the notch of the groove 6, a frame groove 201 is provided at the frame opening of the mounting frame 2, the detection sensor body 3 is plugged into the inner side of the frame groove 201, a fixing groove 203 is symmetrically provided on the outer side of the mounting frame 2, a fixing mechanism 4 is symmetrically provided on the inner side of the mounting frame 2, a limiting mechanism 5 is symmetrically provided on the outer side of the mounting frame 2, the limiting mechanism 5 and the fixing mechanism 4 are movably connected, and the fixing mechanism 4 is clamped with the detection sensor body 3 at the fixing groove 203;

[0030] The detection sensor body 3 includes an integrated shell 305, a front bumper rubber pad 303 is inserted into the inner side of the integrated shell 305, an infrared sensing module 304 is encapsulated with a potting resin on the inner side of the integrated shell 305, an infrared pair of infrared sensing modules 304 movably penetrates the front bumper rubber pad 303, a fixing block 302 is symmetrically fixedly installed on the outer side of the integrated shell 305, a clamping hole 301 is opened on the inner side of the fixing block 302, and the fixing mechanism 4 is clamped with the clamping hole 301 of the fixing block 302. During the assembly process of the detection sensor, the front bumper rubber pad 303 is placed into the integrated shell 305, and then the infrared sensing module 304 is inserted into the integrated shell 305. The module 304 is also placed in the integrated housing 305, and the infrared pair of tubes on the infrared sensing module 304 penetrates the front bumper rubber pad 303, and the other side of the infrared sensing module 304 away from the front bumper rubber pad 303 can be encapsulated with a potting resin. When an object is placed in the box 1, the infrared light propagation process of the two infrared sensing modules 304 arranged opposite to each other in the box 1 is blocked, and the receiving module can identify the existence of the object in the box 1, thereby effectively avoiding the situation where the object is left inside the box 1 and becomes moldy and smelly; the side of the integrated housing 305 located on the emitting or sensing surface is transparent and infrared light-transmitting.

[0031] The detection sensor body 3 is specifically an infrared grating sensor, and the two infrared light beams on the box 1 are the receiving part and the transmitting part respectively, and the infrared lamp bead pairs on the infrared sensing module 304 are not all turned on at the same time during use, but an infrared lamp bead on one side of the box 1 transmits to the infrared lamp bead on the other side after receiving, and then the next group of configured infrared pairs of tubes, through the circuit hardware and software coordination algorithm, start the next pair of infrared lamp beads to perform the transmission-reception scanning procedure. After all the infrared lamp beads are scanned, they re-enter the next cycle. In this way, it can avoid the identification interference caused by the diffuse reflection of a large amount of infrared light in the box 1 caused by multiple lamp beads sending at the same time, and it can also be identified by area, the area where the object is placed in the box 1. In addition, in the battery-powered scenario, it can also provide a lower working current. Energy consumption, and to a certain extent, it is also beneficial to extend the service life of the lamp beads; the signal line of the infrared sensing module 304 can be connected through a connector or inserted into other main control boards to achieve mutual communication; even if the items in the box 1 are transparent, the infrared light source will be reflected by the items during the penetration process, and the refracted infrared light will be weakened. By using this feature, the circuit control program can identify whether there are items in the current box 1 according to the changes in the strength of the infrared light; the number of infrared lamp beads on the infrared sensing module 304 can be customized according to the actual size of the box 1 and the detection coverage; the infrared sensing module 304 also has a temperature monitoring function. When the temperature changes greatly, the sensor is used until water mist appears, and the transmission power can be adjusted to make the infrared penetration ability stronger and accurately identify the items in the box 1;

[0032] The present invention can also add an ultraviolet lamp to the infrared sensing module 304 for disinfection and sterilization inside the refrigerator body 1, and according to the structure of the refrigerator body 1, the light-transmitting portion 601 of the integrated housing 305 can be chamfered to lengthen the grating and improve the blind area;

[0033] The fixing mechanism 4 includes a mounting groove 401, which is symmetrically arranged on the outer side of the mounting frame 2, and a moving block 403 is symmetrically slidably connected to the inner side of the mounting groove 401, and a clamping block 404 is fixedly installed on one side of the moving block 403, and the clamping end of the clamping block 404 extends into the inner side of the fixing groove 203 and is clamped with the clamping hole 301 of the fixing block 302, and a mounting shell 406 is bonded to the inner side of the mounting groove 401, and an end plate 409 is symmetrically slidably connected to the inner side of the mounting shell 406, and the same first spring 4010 is fixedly installed between the opposite surfaces of the end plate 409, and a connecting rod 407 is fixedly installed on the side of the end plate 409 away from the first spring 4010, and an insert block 408 is fixedly installed on the end of the connecting rod 407 away from the end plate 409, and the insert block 408 and the moving block 403 are plug-in connected, and a buckle block 402 is fixedly installed on the outer side of the moving block 403, and the buckle block 40 2, a limiting hole 405 is provided on the inner side of the limiting mechanism 5 and the limiting hole 405 of the buckle block 402 is movably connected. When installing the detection sensor body 3, the fixed block 302 on the detection sensor body 3 is inserted into the fixed groove 203 of the installation frame 2. During the insertion process, the fixed block 302 is squeezed along the inclined surface of the clamping block 404 at the fixed groove 203, and the clamping block 404 is connected to the inserting block 408 through the moving block 403. At the same time, the end plates 409 connected to the inserting block 408 through the connected connecting rod 407 are close to each other to squeeze the first spring 4010 in the installation shell 406 until the clamping hole 301 on the fixed block 302 corresponds to the clamping block 404. At this time, under the elastic reset action of the first spring 4010, the clamping block 404 at the moving block 403 is clamped into the fixed block 302, so that the detection sensor body 3 can be conveniently installed and used quickly;

[0034] The limiting mechanism 5 includes a baffle 501, which is bonded to the notch of the mounting groove 401. The end of the buckle block 402 away from the shift block 403 movably penetrates the baffle 501. A mounting shell 506 is fixedly installed on the side of the baffle 501 away from the mounting groove 401. Positioning holes 502 are symmetrically opened on the inner side of the mounting shell 506. The inner side of the mounting shell 506 is slidably connected with a mounting plate 503. The end of the mounting plate 503 slides through the positioning hole 502. The mounting plate 503 and the mounting shell 506 are connected. A second spring 504 is symmetrically fixedly installed, and a pressing block 505 is fixedly installed on one side of the mounting plate 503 away from the second spring 504. The end of the pressing block 505 away from the mounting plate 503 slides through the inner wall of the assembly shell 506. A limiting clamp 507 is provided at the end of the mounting plate 503. The mounting plate 503 is movably connected to the limiting hole 405 of the buckle block 402 through the limiting clamp 507. When the detection sensor body 3 needs to be disassembled, it is only necessary to pinch the two sides of the mounting frame 2 at the same time. The buckle block 402 moves relatively close to the buckle block 402. When the buckle block 402 contacts the limiting clamp 507, the limiting hole 405 on the buckle block 402 slides along the inclined surface of the limiting clamp 507 under the extrusion effect. At the same time, the mounting plate 503 connected to the limiting clamp 507 slides in the assembly shell 506 and compresses the second spring 504 until the limiting clamp 507 passes over the limiting hole 405. Under the reset action of the second spring 504, the buckle block 402 is limited. At this time, the buckle block 40 The clamping block 404 connected by the shifting block 403 is separated from the clamping hole 301 of the fixing block 302, and the detection sensor body 3 can be conveniently and directly removed from the mounting frame 2 on the box body 1 for replacement; when replacing, after being pressed by the pressing block 505, the mounting plate 503 slides on the assembly shell 506, and when the limiting clamping head 507 on the mounting plate 503 is locked and staggered with the limiting hole 405 of the buckle block 402, the buckle block 402 is also reset under the reset action of the first spring 4010.

[0035] See also Figure 4 A positioning frame 8 is fixedly installed on the inner side of the mounting groove 401, and the mounting shell 406 is inserted into the inner side of the positioning frame 8. Through the positioning frame 8 on the inner side of the mounting groove 401, one side of the mounting shell 406 can be positioned and inserted into it and bonded to the mounting groove 401, so as to ensure that the elastic force indirectly borne by the clamping blocks 404 at the two places is consistent.

[0036] See also Figure 4 A connecting groove 7 is provided on one side of the shift block 403 facing the slot of the installation slot 401, and the plug-in block 408 is plugged into the shift block 403 through the connecting groove 7. Through the connecting groove 7 on the shift block 403, the plug-in block 408 can be conveniently inserted into the shift block 403 for plugging.

[0037] See also Figure 4A positioning groove 9 is provided at the groove opening of the installation groove 401 , and the baffle 501 is bonded to the inner side of the positioning groove 9 . The positioning groove 9 on the installation groove 401 can facilitate the positioning and installation of the baffle 501 on the installation frame 2 .

[0038] See also Figure 6 A square hole 11 is opened on the inner side of the baffle 501, and one end of the buckle block 402 away from the shift block 403 movably passes through the square hole 11. Through the square hole 11 on the baffle 501, the operating part of the buckle block 402 can conveniently move through the baffle 501.

[0039] See also Figure 6 The inner side of the assembly shell 506 is symmetrically fixed with a slide bar 10, and the mounting plate 503 is slidably connected to the outer side of the slide bar 10. The slide bar 10 on the inner side of the assembly shell 506 can facilitate the mounting plate 503 to slide stably in the assembly shell 506. At the same time, one end of the slide bar 10 can move through the middle part of the second spring 504, and can also limit the deformation of the second spring 504 to ensure its stability.

[0040] See also Figure 3 A sealing groove 202 is opened on the inner side of the frame groove 201, a sealing ring 13 is bonded to the outer side of the integrated shell 305, and the sealing ring 13 is arranged on the inner side of the sealing groove 202. A circular hole 12 is opened on the inner side of the front bumper rubber pad 303, and the infrared pair tube of the infrared sensing module 304 slides through the circular hole 12. The sealing groove 202 at the frame groove 201 cooperates with the sealing ring 13 on the integrated shell 305. Under the extrusion effect after installation, a seal is formed between the integrated shell 305 and the installation frame 2, which plays a waterproof and dustproof role, ensuring the stable use of the detection sensor body 3.

[0041] The working principle of the present invention is as follows: during use, when an object is placed in the box 1, the two infrared sensing modules 304 arranged opposite to each other in the box 1 transmit and receive at the same time, and the propagation process of the infrared light is blocked, so the receiving module can recognize the existence of the object in the box 1. During subsequent use, when it is necessary to disassemble the detection sensor body 3, it is only necessary to pinch the buckle blocks 402 located on both sides of the installation frame 2 at the same time, and the buckle blocks 402 move relatively close to each other. When the buckle blocks 402 come into contact with the limit clamp 507, the limit clamps on the buckle blocks 402 are squeezed. The positioning hole 405 slides along the inclined surface of the limiting clamp 507, and the mounting plate 503 connected to the limiting clamp 507 slides in the assembly shell 506 and compresses the second spring 504 until the limiting clamp 507 passes over the limiting hole 405. Under the reset action of the second spring 504, the buckle block 402 is limited. At this time, the buckle block 402 is separated from the clamping hole 301 of the fixed block 302 through the clamping block 404 connected by the moving block 403. At this time, the detection sensor body 3 can be directly removed from the mounting frame 2 on the box body 1 for replacement;

[0042] When replacing, after pressing the pressing block 505, the mounting plate 503 slides on the assembly shell 506. When the limiting clamp head 507 on the mounting plate 503 is positioned and staggered with the limiting hole 405 of the buckle block 402, the buckle block 402 is also reset under the reset action of the first spring 4010. When installing the detection sensor body 3, the fixing block 302 on the detection sensor body 3 is inserted into the fixing groove 203 of the installation frame 2. During the insertion process, the fixing block 302 moves along the fixing groove 203 of the installation frame 2. The block 404 at the groove 203 is squeezed at an inclined surface, and the block 404 is connected through the shift block 403 and the plug block 408. At the same time, the end plates 409 connected to the plug block 408 through the connected connecting rod 407 are pressed closer to each other to squeeze the first spring 4010 in the mounting shell 406 until the card hole 301 on the fixed block 302 corresponds to the block 404. At this time, under the elastic reset action of the first spring 4010, the block 404 at the shift block 403 is inserted into the fixed block 302, and the replacement and installation is completed.

Claims

1. A vehicle refrigerator article detection sensor, characterized in that: It comprises a box body and a detection sensor body, the outer side of the box body is symmetrically provided with grooves, the opposite surface of the groove is provided with a light-transmitting portion, the groove opening is integrally connected with a mounting frame, the frame opening of the mounting frame is provided with a frame groove, the detection sensor body is plugged into the inner side of the frame groove, the outer side of the mounting frame is symmetrically provided with fixing grooves, the inner side of the mounting frame is symmetrically provided with fixing mechanisms, the outer side of the mounting frame is symmetrically provided with limiting mechanisms, the limiting mechanisms and the fixing mechanisms are movably connected, and the fixing mechanisms are clamped with the detection sensor body at the fixing grooves; The detection sensor body includes an integrated shell, a front bumper rubber pad is inserted into the inner side of the integrated shell, an infrared sensing module is encapsulated with a potting resin on the inner side of the integrated shell, an infrared pair of tubes of the infrared sensing module movably penetrates the front bumper rubber pad, a fixing block is symmetrically fixedly installed on the outer side of the integrated shell, a card hole is opened on the inner side of the fixing block, and the fixing mechanism is card-connected with the card hole of the fixing block.

2. The vehicle refrigerator article detection sensor according to claim 1, characterized in that: The fixing mechanism comprises an installation slot, which is symmetrically opened on the outer side of the installation frame, and a moving block is symmetrically slidably connected on the inner side of the installation slot, and a clamping block is fixedly installed on one side of the moving block, and the clamping end of the clamping block extends into the inner side of the fixing slot and is clamped with the clamping hole of the fixing block, and a mounting shell is bonded on the inner side of the mounting slot, and an end plate is symmetrically slidably connected on the inner side of the mounting shell, and the same first spring is fixedly installed between the opposite surfaces of the end plate, and a connecting rod is fixedly installed on the side of the end plate away from the first spring, and an end of the connecting rod away from the end plate slides through the shell wall of the mounting shell and is fixedly installed with an insert block, and the insert block and the moving block are plug-in connected, and a buckle block is fixedly installed on the outer side of the moving block, and a limiting hole is opened on the inner side of the buckle block, and the limiting mechanism and the limiting hole of the buckle block are movably connected.

3. The vehicle refrigerator article detection sensor according to claim 2, characterized in that: A positioning frame is fixedly installed on the inner side of the installation groove, and the installation shell is plugged into the inner side of the positioning frame.

4. The vehicle refrigerator article detection sensor according to claim 2, characterized in that: A connecting groove is provided on one side of the shifting block facing the notch of the installation groove, and the inserting block is plug-connected with the shifting block through the connecting groove.

5. The vehicle refrigerator article detection sensor according to claim 2, characterized in that: The limiting mechanism includes a baffle, which is bonded to the notch of the mounting groove, and one end of the buckle block away from the moving block movably passes through the baffle, and an assembly shell is fixedly installed on the side of the baffle away from the mounting groove, and a positioning hole is symmetrically opened on the inner side of the assembly shell, and a mounting plate is slidably connected to the inner side of the assembly shell, and the end of the mounting plate slides through the positioning hole, and a second spring is symmetrically fixedly installed between the mounting plate and the assembly shell, and a pressing block is fixedly installed on the side of the mounting plate away from the second spring, and one end of the pressing block away from the mounting plate slides through the inner wall of the assembly shell, and a limiting clamp is provided at the end of the mounting plate, and the mounting plate is movably connected with the limiting hole of the buckle block through the limiting clamp.

6. The vehicle refrigerator article detection sensor according to claim 5, characterized in that: A positioning groove is provided at the notch of the installation groove, and the baffle is bonded to the inner side of the positioning groove.

7. The vehicle refrigerator article detection sensor according to claim 5, characterized in that: A square hole is provided on the inner side of the baffle, and one end of the buckle block away from the shifting block movably passes through the square hole.

8. The vehicle refrigerator article detection sensor according to claim 5, characterized in that: The inner side of the assembly shell is symmetrically fixed with a slide bar, and the mounting plate is slidably connected to the outer side of the slide bar.

9. The vehicle refrigerator article detection sensor according to claim 1, characterized in that: A sealing groove is provided on the inner side of the frame groove, a sealing ring is bonded on the outer side of the integrated housing, the sealing ring is arranged on the inner side of the sealing groove, a round hole is provided on the inner side of the front bumper rubber pad, and the infrared pair tube of the infrared sensing module slides through the round hole.

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