Object detection sensor for vehicle-mounted refrigerator

Abstract

The utility model 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 provided with light-transmitting parts. And a frame groove is formed in a frame opening of the mounting frame. Compared with a traditional weighing scheme, the infrared weighing device can identify light articles, misjudgment can occur when the light articles are identified, and due to the fact that the weighing mode belongs to a tiny deformation weighing mode and belongs to mechanical movement, the weighing accuracy can be greatly reduced in an extreme environment, especially at a low temperature, and the weighing accuracy can be greatly improved. According to the scheme, articles are detected in an infrared mode, mechanical motion is avoided, the service life is longer, the accuracy is higher, circuit software and hardware are combined, a cyclic scanning mode is utilized, the anti-interference performance is good, the power consumption is low, detection areas can be distinguished, and the service life is relatively longer.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle refrigerator detection technical field especially a vehicle refrigerator article detection sensor. BACKGROUND

[0002] New energy vehicles, as the perfect combination of modern technology and environmental protection concepts, are gradually leading the green transformation of the automotive industry. They mainly rely on electricity or other non-fossil fuel drives, such as pure electric, plug-in hybrid, etc., significantly reducing tail gas emissions, which is of great significance to improving air quality and alleviating the greenhouse effect. New energy vehicles not only save energy and protect the environment, but also often come with advanced intelligent driving assistance systems, improving driving safety and convenience. With the continuous progress of battery technology and the increasing perfection of charging facilities, new energy vehicles are becoming the mainstream choice for future travel, with increasing range and more convenient charging.

[0003] With the popularity of new energy vehicles, intelligent vehicle products are constantly upgrading, and intelligent vehicle refrigerators will become standard equipment. However, traditional vehicle refrigerators are simply used to store items, and users often forget to take them away. If left for too long, food and beverages may expire or even become smelly. Currently, some use a weighing method to identify whether there are items in the box, but this method cannot identify light items, and there are also problems such as expiration and odor of physical objects. SUMMARY

[0004] The utility model aims at providing a vehicle refrigerator article detection sensor to solve the problems raised in the background.

[0005] To achieve the above purpose, the utility model provides a vehicle refrigerator article detection sensor, which comprises a box body and a detection sensor main body. The outer side of the box body is symmetrically provided with a groove. The opposite surface of the groove is provided with a light transmission part. An installation frame is integrally connected at the groove opening of the groove. A frame groove is formed at the frame opening of the installation frame. The detection sensor main body is inserted into the inner side of the frame groove. The outer side of the installation frame is symmetrically provided with a fixing groove. The inner side of the installation frame is symmetrically provided with a fixing mechanism. The outer side of the installation frame is symmetrically provided with a limiting mechanism. The limiting mechanism and the fixing mechanism are movably connected. The fixing mechanism and the detection sensor main body at the fixing groove are clamped.

[0006] The detection sensor main body comprises an integral shell. A front stop rubber pad is inserted into the inner side of the integral shell. An infrared induction module is packaged in the inner side of the integral shell by pouring sealing resin. The infrared pair of the infrared induction module movably penetrates the front stop rubber pad. The outer side of the integral shell is symmetrically fixedly provided with a fixed block. The inner side of the fixed block is provided with a clamping hole. The fixing mechanism and the clamping hole of the fixed block are clamped.

[0007] The fixing mechanism comprises a mounting groove symmetrically arranged outside the mounting frame, a sliding block symmetrically connected to the inner side of the mounting groove, a clamping block fixedly arranged on one side of the sliding block, a clamping end of the clamping block inserted into the inner side of the fixing groove and the clamping hole of the fixing block, an installation shell bonded to the inner side of the mounting groove, an end plate symmetrically connected to the inner side of the installation shell, a first spring fixedly arranged between opposite surfaces of the end plate, a connecting rod fixedly arranged on the side of the end plate away from the first spring, a plug slidingly penetrating the shell wall of the installation shell and fixedly arranged on the end of the connecting rod away from the end plate, the plug and the sliding block being insertedly connected, a buckling block fixedly arranged on the outer side of the sliding block, and a limiting hole arranged on the inner side of the buckling block, the limiting mechanism and the limiting hole of the buckling block being movably connected.

[0008] The limiting mechanism comprises a baffle bonded to the slot opening of the mounting groove, the end of the buckling block away from the sliding block movably penetrating the baffle, a fitting shell fixedly arranged on the side of the baffle away from the mounting groove, a positioning hole symmetrically arranged on the inner side of the fitting shell, an installation plate slidingly connected to the inner side of the fitting shell, the end of the installation plate slidingly penetrating the positioning hole, a second spring symmetrically fixedly arranged between the installation plate and the fitting shell, a pressing block fixedly arranged on the side of the installation plate away from the second spring, the end of the pressing block slidingly penetrating the inner wall of the fitting shell, and a limiting clamping head arranged on the end of the installation plate, the installation plate movably connected to the limiting hole of the buckling block through the limiting clamping head.

[0009] Further, the inner side of the mounting groove is fixedly provided with a positioning frame, and the installation shell is inserted into the inner side of the positioning frame.

[0010] Further, the side of the sliding block facing the slot opening of the mounting groove is provided with a connecting groove, and the plug is insertedly connected to the sliding block through the connecting groove.

[0011] Further, the slot opening of the mounting groove is provided with a positioning groove, and the baffle is bonded to the inner side of the positioning groove.

[0012] Further, the inner side of the baffle is provided with a square hole, and the end of the buckling block away from the sliding block movably penetrates the square hole.

[0013] Further, the inner side of the fitting shell is symmetrically fixedly provided with a sliding rod, and the installation plate is slidingly connected to the outer side of the sliding rod.

[0014] Further, the inner side of the frame groove is provided with a sealing groove, the outer side of the integrated shell is bonded with a sealing ring, the sealing ring is arranged on the inner side of the sealing groove, the inner side of the front blocking rubber pad is provided with a circular hole, and the infrared pair of the infrared sensing module slidingly penetrates the circular hole.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] One, the utility model discloses, through adopting infrared mode with traditional weighing scheme compares, the utility model discloses can identify light article weighing mode when identifying light article and will appear misjudgment, because the weighing mode belongs to the small deformation mode weighing, belongs to mechanical movement, in extreme environment, especially low temperature, the weighing accuracy can greatly reduce, and the scheme detects the article with infrared form, and there is no mechanical movement, and the life is longer, and the accuracy is also higher, and the integrated circuit software and hardware are utilized the form of cyclic scanning, and the anti -interference is good, and the power consumption is low, and can distinguish detection area, and the service life is also relatively higher.

[0017] Second, the utility model discloses, the fixed block part on the detection sensor main part is inserted into the fixed slot of the mounting frame, during the insertion process, the fixed block is extruded along the inclined surface of the clamping block at the fixed slot, and the clamping block is connected through the displacement block and the plug-in block, and the end plate connected through the connecting rod of the plug-in block is extruded to the first spring in the mounting shell, until the clamping hole on the fixed block corresponds to the clamping block, at this moment, the clamping block at the displacement block is clamped into the fixed block under the elastic reset action of the first spring, so that the detection sensor main part can be conveniently and quickly installed and used.

[0018] Third, the utility model discloses, through simultaneously pinching the buckle block on both sides of the mounting frame, the buckle block is relatively close to the movement, when the buckle block contacts the limiting clamp head, the limiting hole on the buckle block slides along the inclined surface part of the limiting clamp head under the extrusion effect, and the mounting plate connected with the limiting clamp head slides in the assembly shell and compresses the second spring, until the limiting clamp head passes through the limiting hole, the buckle block is limited under the reset action of the second spring, and at this moment, the clamping hole of the clamping block and the fixed block are separated through the clamping block connected with the displacement block, so that the detection sensor main part can be conveniently and directly taken off from the mounting frame on the box body and replaced. ACCURATELY

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the sensorless main body structure schematic diagram in the utility model;

[0021] Figure 3 It is the Figure 2 It is the enlarged view of A in the middle;

[0022] Figure 4 It is the fixed mechanism partial view in the utility model;

[0023] Figure 5 It is the mounting shell internal structure schematic diagram in the utility model;

[0024] Figure 6 It is the assembly shell internal structure schematic diagram in the utility model;

[0025] Figure 7 is a sensor body exploded view in the utility model;

[0026] Figure 8 is a sensor body exploded view in the utility model; Figure 7 enlarged view of B.

[0027] In the figure: 1, box; 2, mounting frame; 201, frame slot; 202, sealing groove; 203, fixed groove; 3, detection sensor body; 301, card hole; 302, fixed block; 303, front stop rubber pad; 304, infrared induction module; 305, integrated shell; 4, fixing mechanism; 401, mounting groove; 402, buckle; 403, moving block; 404, clamping block; 405, limiting hole; 406, mounting 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 transmission part; 7, connecting groove; 8, positioning frame; 9, positioning groove; 10, slide bar; 11, square hole; 12, round hole; 13, sealing ring. DETAILED DESCRIPTION

[0028] Embodiment

[0029] Please refer to Figures 1-8 , the utility model embodiment, a kind of vehicle-mounted refrigerator article detection sensor, including box 1 and detection sensor body 3, the outside of box 1 is symmetrically provided with groove 6, the opposite surface of groove 6 is equipped with light transmission part 601, groove 6 is integrally connected with mounting frame 2 at slot opening, mounting frame 2 is provided with frame slot 201 at frame opening, detection sensor body 3 is inserted in the inside of frame slot 201, the outside of mounting frame 2 is symmetrically provided with fixed groove 203, the inside of mounting frame 2 is symmetrically equipped with fixing mechanism 4, the outside of mounting frame 2 is symmetrically equipped with limiting mechanism 5, limiting mechanism 5 and fixing mechanism 4 are movably connected, and detection sensor body 3 is clamped at fixed mechanism 4 and fixed groove 203 place;

[0030] The detection sensor body 3 comprises an integral shell 305, the inner side of the integral shell 305 is inserted with a front blocking rubber pad 303, the inner side of the integral shell 305 is packaged with an infrared sensing module 304 through potting resin, the infrared pair of the infrared sensing module 304 is movably penetrated through the front blocking rubber pad 303, the outer side of the integral shell 305 is symmetrically fixedly installed with a fixing block 302, the inner side of the fixing block 302 is provided with a clamping hole 301, and the fixing mechanism 4 is clamped with the clamping hole 301 of the fixing block 302. In the detection sensor assembly process, the front blocking rubber pad 303 is placed into the integral shell 305, then the infrared sensing module 304 is also placed in the integral shell 305, and the infrared pair on the infrared sensing module 304 penetrates through the front blocking rubber pad 303, and the other side of the infrared sensing module 304 away from the front blocking rubber pad 303 is packaged by potting resin. When the object is placed in the box body 1, the infrared light propagation process of the two oppositely arranged infrared sensing modules 304 in the box body 1 is blocked, and the receiving module can identify that there is an article in the box body 1, so that the situation of mildewing and stinking of the article left in the box body 1 can be effectively avoided. The side of the integral shell 305 on the emitting or sensing surface is processed through transparency and infrared light transmission;

[0031] The detection sensor body 3 is specifically an infrared grating sensor, and the two infrared lights on the box body 1 are respectively a receiving part and a transmitting part. In use, the opposite infrared lamp bead pairs on the infrared sensing module 304 are not all turned on at the same time, but after one infrared lamp bead on one side of the box body 1 transmits to the infrared lamp bead on the other side for receiving, the next group of configured infrared pairs are used to perform the emission-receiving scanning program of the next pair of infrared lamp beads through the cooperation algorithm of the circuit software and hardware. After all the infrared lamp beads are scanned, the next round of cycle is re-entered. In this way, the identification interference caused by the large amount of infrared light diffuse reflection in the box body 1 can be avoided when multiple lamp beads are used at the same time, and regional identification can also be realized. The article is placed in a certain area of the box body 1. In addition, in the battery power supply scene, a lower working current energy consumption can also be provided, and to a certain extent, it is also beneficial to prolong the service life of the lamp bead. The signal line of the infrared sensing module 304 can be connected through a connector or inserted into other main control boards to realize mutual communication. Even if the article in the box body 1 is transparent, the infrared light source will be reflected by the article during the penetration process, and the refracted infrared light becomes weak. By using this feature, the circuit control program can also identify whether there is an article in the box body 1 according to the strength change of the infrared light. The number of infrared lamp bead pairs on the infrared sensing module 304 can be customized according to the actual size of the box body 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 to appear water mist, and the emission power can be controlled to make the infrared penetration ability stronger and accurately identify the article in the box body 1.

[0032] The utility model discloses still can add ultraviolet lamp on infrared induction module 304, be used for the disinfection and sterilization in the refrigerator body 1 inside, and according to the structure of refrigerator body 1, the light -transmitting part 601 of integral type shell 305 can adopt chamfering processing and thereby lengthen grating, improve blind area;

[0033] The fixing mechanism 4 comprises a mounting groove 401, the mounting groove 401 is symmetrically arranged on the outer side of the mounting frame 2, the inner side of the mounting groove 401 is symmetrically connected with a moving block 403 in a sliding mode, one side of the moving block 403 is fixedly provided with a clamping block 404, the clamping end of the clamping block 404 is inserted into the clamping hole 301 of the fixed block 302 and the inner side of the fixed groove 203, the inner side of the mounting groove 401 is bonded with a mounting shell 406, the inner side of the mounting shell 406 is symmetrically connected with an end plate 409 in a sliding mode, the opposite surfaces of the end plate 409 are fixedly provided with a same first spring 4010, one side of the end plate 409 away from the first spring 4010 is fixedly provided with a connecting rod 407, one end of the connecting rod 407 away from the end plate 409 is slidably penetrated through the shell wall of the mounting shell 406 and fixedly provided with an insertion block 408, the insertion block 408 and the moving block 403 are connected in a plug-in mode, the outer side of the moving block 403 is fixedly provided with a buckling block 402, the inner side of the buckling block 402 is provided with a limiting hole 405, the limiting mechanism 5 and the limiting hole 405 of the buckling block 402 are movably connected, when the detection sensor main body 3 is installed, the fixed block 302 on the detection sensor main body 3 is inserted into the fixed groove 203 of the mounting frame 2, during the insertion process, the fixed block 302 is extruded along the inclined surface of the clamping block 404 at the fixed groove 203, the clamping block 404 is connected with the moving block 403 and the insertion block 408, at the same time, the insertion block 408 is connected with the end plate 409 through the connecting rod 407, and the end plate 409 is extruded to the first spring 4010 in the mounting shell 406 by approaching each other, until the clamping hole 301 on the fixed block 302 corresponds to the clamping block 404, at this moment, the clamping block 404 at the moving block 403 is clamped into the fixed block 302 under the elastic reset action of the first spring 4010, so that the detection sensor main body 3 can be conveniently and quickly installed and used;

[0034] The limiting mechanism 5 comprises a baffle plate 501, the baffle plate 501 is bonded at the slot of the mounting groove 401, the buckle 402 is movably penetrated through the baffle plate 501 from the end of the moving block 403, the baffle plate 501 is fixedly installed with an assembling shell 506 on the side away from the mounting groove 401, the inner side of the assembling shell 506 is symmetrically provided with a positioning hole 502, the inner side of the assembling shell 506 is slidably connected with a mounting plate 503, the end of the mounting plate 503 is slidably penetrated through the positioning hole 502, the second spring 504 is symmetrically and fixedly installed between the mounting plate 503 and the assembling shell 506, the mounting plate 503 is fixedly installed with a pressing block 505 on the side away from the second spring 504, the pressing block 505 is slidably penetrated through the inner wall of the assembling shell 506 from the end away from the mounting plate 503, the end of the mounting plate 503 is provided with a limiting clamp 507, and the mounting plate 503 is movably connected with the limiting hole 405 of the buckle 402 through the limiting clamp 507; when it is needed to disassemble the detection sensor body 3, only the buckle 402 located on the two sides of the mounting frame 2 needs to be pinched and moved, the buckle 402 is relatively close to each other, when the buckle 402 is in contact with the limiting clamp 507, the limiting hole 405 on the buckle 402 slides along the inclined surface part of the limiting clamp 507 under the extrusion effect, at the same time, the mounting plate 503 connected with the limiting clamp 507 slides in the assembling shell 506 and compresses the second spring 504, until the limiting clamp 507 passes through the limiting hole 405, under the reset action of the second spring 504, the buckle 402 is limited, at this time, the buckle 402 connected with the clamping block 404 through the moving block 403 is separated from the clamping hole 301 of the fixed block 302, at this time, the detection sensor body 3 can be directly taken off from the mounting frame 2 on the box body 1 for replacement; when it is replaced, after the pressing block 505 is pressed, the mounting plate 503 slides at the assembling shell 506, when the clamping position of the limiting clamp 507 on the mounting plate 503 is disengaged from the limiting hole 405 of the buckle 402, at this time, under the reset action of the first spring 4010, the buckle 402 is also reset.

[0035] Please refer to Figure 4 The inner side of the mounting groove 401 is fixedly installed with a positioning frame 8, 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, and is bonded in the mounting groove 401, so that it can be ensured that the elastic forces indirectly borne by the clamping blocks 404 at two places are consistent.

[0036] Please refer to Figure 4 The side of the moving block 403 facing the slot of the mounting groove 401 is provided with a connecting groove 7, and the plug block 408 is inserted and connected through the connecting groove 7 and the moving block 403, through the connecting groove 7 on the moving block 403, the plug block 408 can be conveniently inserted and inserted with the moving block 403.

[0037] Please refer to Figure 4The positioning groove 9 is arranged at the notch of the mounting groove 401, and the baffle 501 is bonded to the inner side of the positioning groove 9, so that the baffle 501 can be positioned and mounted on the mounting frame 2 conveniently through the positioning groove 9 on the mounting groove 401.

[0038] Please refer to Figure 6 The inner side of the baffle 501 is provided with a square hole 11, and the end, away from the moving block 403, of the buckle 402 is movably penetrated through the square hole 11, so that the operating part of the buckle 402 can be movably penetrated through the baffle 501 through the square hole 11 on the baffle 501.

[0039] Please refer to Figure 6 The inner side of the assembly shell 506 is symmetrically and fixedly provided with a sliding rod 10, and the mounting plate 503 is slidingly connected to the outer side of the sliding rod 10, so that the mounting plate 503 can stably slide in the assembly shell 506 through the sliding rod 10 on the inner side of the assembly shell 506, and meanwhile, the end of the sliding rod 10 movably penetrates through the middle part of the second spring 504, so that the deformation of the second spring 504 can be limited, and the stability of the second spring 504 is guaranteed.

[0040] Please refer to Figure 3 The inner side of the frame groove 201 is provided with a sealing groove 202, the outer side of the integrated shell 305 is bonded with a sealing ring 13, the sealing ring 13 is arranged on the inner side of the sealing groove 202, the inner side of the front baffle rubber pad 303 is provided with a circular hole 12, and the infrared pair tube of the infrared induction module 304 is slidingly penetrated through the circular hole 12, so that the integrated shell 305 and the mounting frame 2 form a seal under the extrusion after installation through the sealing groove 202 at the frame groove 201 and the sealing ring 13 on the integrated shell 305, waterproof and dustproof effects are achieved, and the stable use of the detection sensor main body 3 is ensured.

[0041] The working principle of the utility model is: in the use process, when the object is placed in the box body 1, the two infrared induction modules 304 arranged oppositely in the box body 1 emit and receive at the same time, and the infrared light propagation is blocked, so that the receiving module can identify that there is an object in the box body 1, and during the subsequent use, when the detection sensor main body 3 needs to be disassembled, the buckle 402 on both sides of the mounting frame 2 only needs to be pinched and moved at the same time, the buckle 402 relatively approaches and moves, when the buckle 402 contacts the limiting clamp head 507, the limiting hole 405 on the buckle 402 slides along the inclined surface part of the limiting clamp head 507 under the extrusion effect, at the same time, the mounting plate 503 connected with the limiting clamp head 507 slides in the assembly shell 506 and compresses the second spring 504, until the limiting clamp head 507 passes through the limiting hole 405, the second spring 504 resets, so that the buckle 402 is limited, and at this time, the buckle 402 is separated from the clamping hole 301 of the fixed block 302 through the clamping block 404 connected with the moving block 403, so that the detection sensor main body 3 can be conveniently taken off from the mounting frame 2 on the box body 1 and replaced;

[0042] When replacing, the mounting plate 503 is pressed by pressing the block 505 at the assembly shell 506, and when the limiting clamp 507 on the mounting plate 503 is disengaged from the limiting hole 405 of the buckle block 402, the buckle block 402 is reset under the resetting action of the first spring 4010. When the detection sensor body 3 is installed, the fixed block 302 part on the detection sensor body 3 is inserted into the fixed groove 203 of the mounting frame 2. During the insertion process, the fixed block 302 is pressed along the inclined surface of the clamping block 404 at the fixed groove 203, and the clamping block 404 is connected through the moving block 403 and the plug block 408. At the same time, the plug block 408 is connected through the end plate 409 connected by the connecting rod 407, and the first spring 4010 in the mounting shell 406 is pressed close to each other. Until the clamping hole 301 on the fixed block 302 corresponds to the clamping block 404, at this time, the clamping block 404 at the moving block 403 is clamped into the fixed block 302 under the elastic resetting action of the first spring 4010, and the replacement and installation are completed.

Claims

1. An on-vehicle refrigerator article detection sensor characterized by comprising: The utility model provides a detection sensor body and the box body of including, the recess is equipped with the light transmission part on the opposite side of the recess of the box body, the recess is integrally connected with the installation frame in the notch of recess, the frame slot is equipped with the frame mouth of installation frame, the detection sensor body is inserted in the frame slot, the installation frame is equipped with the fixed groove on the outside symmetry, the installation frame is equipped with the fixed mechanism on the inside symmetry, the installation frame is equipped with the limiting mechanism on the outside symmetry, the fixed mechanism and fixed groove are connected with the detection sensor body, the fixed mechanism and the limiting mechanism are movably connected, the fixed mechanism and the limiting mechanism are movably connected. The detection sensor body includes an integrated housing, a front stop rubber pad is inserted into the inside of the integrated housing, an infrared sensing module is packaged in the inside of the integrated housing by potting resin, an infrared pair of the infrared sensing module movably penetrates the front stop rubber pad, a fixed block is symmetrically fixedly installed on the outside of the integrated housing, a clamping hole is formed in the inside of the fixed block, the fixed mechanism and the clamping hole of the fixed block are clamped.

2. The vehicle-mounted refrigerator article detection sensor according to claim 1, characterized in that, The fixed mechanism includes a mounting groove, the mounting groove is symmetrically formed on the outside of the installation frame, a moving block is symmetrically and slidably connected to the inside of the mounting groove, a clamping block is fixedly installed on one side of the moving block, the clamping end of the clamping block is inserted into the inside of the fixed groove and the clamping hole of the fixed block, an installation shell is bonded to the inside of the mounting groove, end plates are symmetrically and slidably connected to the inside of the installation shell, the same first spring is fixedly installed between the opposite surfaces of the end plates, a connecting rod is fixedly installed on the side of the end plate away from the first spring, an insertion block is slidably and fixedly installed on the end of the connecting rod away from the end plate and penetrating the shell wall of the installation shell, the insertion block and the moving block are insertedly connected, a buckling block is fixedly installed on the outside of the moving block, a limiting hole is formed in the inside of the buckling block, and the limiting mechanism and the limiting hole of the buckling block are movably connected.

3. The vehicle-mounted refrigerator item detection sensor according to claim 2, characterized in that, A positioning frame is fixedly installed on the inside of the installation shell.

4. The vehicle-mounted refrigerator article detection sensor according to claim 2, characterized by, A connecting groove is formed on the side of the moving block facing the notch of the mounting groove, and the insertion block is insertedly connected with the moving block through the connecting groove.

5. The vehicle-mounted refrigerator item detection sensor according to claim 2, characterized in that, The limiting mechanism includes a baffle, the baffle is bonded to the notch of the mounting groove, one end of the buckling block away from the moving block movably penetrates the baffle, an assembly shell is fixedly installed on the side of the baffle away from the mounting groove, positioning holes are symmetrically formed in the inside of the assembly shell, an installation plate is slidably connected to the inside of the assembly shell, the end of the installation plate slidably penetrates the positioning hole, the second spring is symmetrically and fixedly installed between the installation plate and the assembly shell, a pressing block is fixedly installed on the side of the installation plate away from the second spring, the end of the pressing block away from the installation plate slidably penetrates the inner wall of the assembly shell, a limiting clamping head is arranged on the end of the installation plate, and the installation plate is movably connected with the limiting hole of the buckling block through the limiting clamping head.

6. The vehicle-mounted refrigerator item detection sensor according to claim 5, characterized in that, A positioning groove is formed at the notch of the mounting groove, and the baffle is bonded to the inside of the positioning groove.

7. The vehicle-mounted refrigerator item detection sensor according to claim 5, characterized in that, A square hole is formed in the inside of the baffle, and one end of the buckling block away from the moving block movably penetrates the square hole.

8. The vehicle-mounted refrigerator item detection sensor according to claim 5, characterized in that, A slide rod is symmetrically and fixedly installed on the inside of the assembly shell, and the installation plate is slidably connected to the outside of the slide rod.

9. The vehicle-mounted refrigerator item detection sensor of claim 1, wherein, The inner side of the frame slot is provided with a sealing groove, the outer side of the integrated shell is bonded with a sealing ring, the sealing ring is arranged on the inner side of the sealing groove, the inner side of the front rubber pad is provided with a round hole, and the infrared pair tube of the infrared induction module slides through the round hole.

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