Cold chain carriage temperature self-adjusting device
By installing control and regulation mechanisms in the refrigerated truck compartment, and utilizing the combination of temperature sensors and fans, the problem of uneven temperature caused by cold air settling was solved, achieving rapid temperature uniformity and improving transportation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN MINGXUN TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-12
AI Technical Summary
In the operation of existing refrigerated truck temperature self-regulating devices, cold air tends to sink downwards, resulting in uneven temperature distribution at the bottom of the truck and higher temperatures at the top, which affects transportation efficiency.
It employs a control and adjustment mechanism, uses a temperature sensor to detect temperature changes, controls the operation of the refrigeration unit and fan, and draws cold air from the bottom to the top through delivery pipes and air nozzles to achieve temperature uniformity.
It achieves rapid and uniform temperature reduction inside the refrigerated truck compartment, improving transportation efficiency.
Smart Images

Figure CN224224869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cold chain transportation, and in particular to a self-regulating temperature device for cold chain truck compartments. Background Technology
[0002] Cold chain transportation refers to a transportation method that uses specialized equipment and technology to maintain a constant low temperature environment for goods throughout the entire process of loading, unloading, transportation, and transshipment. As the core link of cold chain logistics, it encompasses road, rail, air, water, and multimodal transport modes, and is suitable for the circulation of temperature-sensitive goods such as food and pharmaceuticals. A refrigerated truck is a specially designed enclosed compartment for transporting temperature-sensitive goods. Its core function is to maintain a stable low temperature environment through an integrated refrigeration / insulation system. Therefore, a self-regulating temperature device for refrigerated trucks is particularly needed.
[0003] However, in the existing self-regulating temperature control devices for refrigerated trucks, the refrigeration unit delivers cold air into the refrigerated truck compartment during operation. However, the cold air tends to sink, resulting in uneven temperature distribution inside the refrigerated truck compartment, where the temperature is lower at the bottom and higher at the top, which affects the transportation efficiency of the refrigerated truck compartment. Utility Model Content
[0004] The purpose of this utility model is to provide a temperature self-regulating device for cold chain truck compartments, in order to solve the problem mentioned in the background art that in the operation of existing temperature self-regulating devices for cold chain truck compartments, the refrigeration unit delivers cold air into the cold chain truck compartment, but the cold air tends to sink, resulting in an uneven temperature inside the cold chain truck compartment where the temperature is low at the bottom and high at the top, which affects the transportation effect inside the cold chain truck compartment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-regulating temperature device for a cold chain truck body, comprising a truck body, a control mechanism and an adjustment mechanism disposed inside the truck body;
[0006] The control mechanism includes a controller. A refrigeration unit is installed on the inner wall of the main body of the carriage near the controller. A temperature sensor is installed on the inner wall of the main body of the carriage. A fan is installed at the bottom of the main body of the carriage. A fixing ring is fixedly connected to the bottom of the main body of the carriage. One end of the fan is connected to a connecting pipe. A conveying pipe is sealed to the top of the connecting pipe. A nozzle is installed on the surface of the conveying pipe.
[0007] Preferably, the controller is electrically connected to the refrigeration unit.
[0008] Preferably, the temperature sensor is electrically connected to the controller, and the fan is electrically connected to the controller.
[0009] Preferably, the delivery pipe extends through the interior of the fixing ring.
[0010] Preferably, the adjustment mechanism includes an adjustment groove, a limiting groove is formed in the inner wall of the carriage body, a partition is embedded in the adjustment groove, a limiting block is fixedly connected to one end of the partition, and a ventilation hole is formed on one side of the surface of the partition.
[0011] Preferably, the adjusting groove is provided in five sets, and the adjusting groove is connected to the limiting groove.
[0012] Preferably, the dimensions of the limiting block and the limiting groove are matched.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the temperature self-regulating device for cold chain compartments, through the setting of the control mechanism, when the temperature sensor detects that the temperature inside the compartment body is high during use, the controller controls the refrigeration unit to work and deliver cold air into the compartment body. At the same time, the fan works to draw the cold air from the bottom to the top of the compartment body and output it through the air nozzle, thereby enabling the temperature inside the compartment body to drop rapidly while ensuring that the temperature inside the compartment body is uniform. Attached Figure Description
[0014] Figure 1 This is a side view of the appearance structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the control mechanism structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the interaction between the controller and the fan in this utility model.
[0017] Figure 4 This is an exploded view of the adjustment mechanism of this utility model.
[0018] In the diagram: 1. Main body of the carriage; 2. Control mechanism; 201. Controller; 202. Refrigeration unit; 203. Temperature sensor; 204. Fan; 205. Fixing ring; 206. Connecting pipe; 207. Conveying pipe; 208. Air nozzle; 3. Adjustment mechanism; 301. Adjustment groove; 302. Limiting groove; 303. Partition; 304. Limiting block; 305. Ventilation hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a temperature self-regulating device for a cold chain truck compartment, including a truck compartment body 1, a control mechanism 2 and an adjustment mechanism 3 inside the truck compartment body 1;
[0021] The control mechanism 2 includes a controller 201. A refrigeration unit 202 is installed on the inner wall of the carriage body 1 near the controller 201. A temperature sensor 203 is installed on the inner wall of the carriage body 1. A fan 204 is installed at the bottom of the carriage body 1. A fixing ring 205 is fixedly connected to the bottom of the carriage body 1. One end of the fan 204 is connected to a connecting pipe 206. A delivery pipe 207 is sealed to the top of the connecting pipe 206. A nozzle 208 is installed on the surface of the delivery pipe 207. Through the arrangement of the controller 201, refrigeration unit 202, temperature sensor 203, fan 204, fixing ring 205, connecting pipe 206, delivery pipe 207, and nozzle 208, during use, the temperature sensor 203 senses the temperature inside the carriage body 1. When the temperature exceeds a set threshold, the temperature sensor 203 activates the refrigeration unit. Sensor 203 transmits the sensed temperature data to controller 201. Since controller 201 is electrically connected to refrigeration unit 202 and fan 204, controller 201 controls refrigeration unit 202 to operate, causing refrigeration unit 202 to deliver cold air into the interior of the carriage body 1. Since the cold air accumulates at the bottom of the carriage body 1, controller 201 controls fan 204 to operate, so fan 204 draws the cold air from the bottom of carriage body 1 and sends it to delivery pipe 207 through connecting pipe 206. Since the surface of delivery pipe 207 is equipped with air nozzles 208, air nozzles 208 blow out the cold air inside delivery pipe 207, thereby causing air to circulate inside carriage body 1. At this time, the temperature inside carriage body 1 can be quickly reduced while the temperature is uniform from top to bottom.
[0022] Furthermore, the controller 201 is electrically connected to the refrigerator 202. Through the settings of the controller 201, during use, the controller 201 is electrically connected to the refrigerator 202 so that the refrigerator 202 can be controlled, and the refrigerator 202 can be turned on or off as needed.
[0023] Furthermore, the temperature sensor 203 is electrically connected to the controller 201, and the fan 204 is electrically connected to the controller 201. Through the settings of the temperature sensor 203, during use, the temperature sensor 203 can sense the temperature inside the main body 1 of the carriage. When the temperature is higher than the set threshold, the temperature sensor 203 transmits the sensed temperature data to the controller 201, so that the controller 201 controls the refrigeration unit 202 and the fan 204 to work.
[0024] Furthermore, the delivery pipe 207 passes through the interior of the fixing ring 205. Through the setting of the delivery pipe 207, during use, the delivery pipe 207 can deliver the cold air inside the connecting pipe 206 to each air nozzle 208.
[0025] Furthermore, the adjustment mechanism 3 includes an adjustment groove 301, a limiting groove 302 is formed in the inner wall of the carriage body 1, a partition 303 is fitted inside the adjustment groove 301, one end of the partition 303 is fixedly connected to a limiting block 304, and a ventilation hole 305 is formed on one side of the surface of the partition 303. Through the arrangement of the adjustment groove 301, the limiting groove 302, the partition 303, the limiting block 304, and the ventilation hole 305, when it is necessary to adjust the space inside the carriage body 1, the partition 303 can be lifted upwards. Since one end of the partition 303 is fixedly connected to the limiting block 304, the partition 303 can be lifted upwards. Block 304 is moved out of the limiting groove 302 by pulling the partition 303, which then slides out of the adjusting groove 301. The two sides of the partition 303 are placed in the adjusting groove 301 as needed. Then the partition 303 is pushed. When the partition 303 slides to the top of the adjusting groove 301, the limiting block 304 is engaged in the limiting groove 302, thus fixing the partition 303. At this time, the partition 303 divides the space inside the carriage body 1 into the state required by the user.
[0026] Furthermore, five sets of adjustment grooves 301 are provided. The adjustment grooves 301 are connected to the limiting grooves 302. With the setting of the adjustment grooves 301, when the partition 303 is fixed inside the adjustment grooves 301 at different positions, the partition 303 can divide the space inside the main body of the carriage 1 into different sizes.
[0027] Furthermore, the size of the limiting block 304 matches that of the limiting groove 302. With the setting of the limiting block 304, when the limiting block 304 is fitted inside the limiting groove 302 during use, the partition 303 can be fixed to prevent the partition 303 from moving and causing instability.
[0028] Working principle: When it is necessary to adjust the space inside the main body 1 of the carriage, the partition 303 can be lifted upwards. Since one end of the partition 303 is fixedly connected to the limiting block 304, the limiting block 304 can be moved out of the limiting groove 302. Then, pulling the partition 303 will allow it to slide out of the adjusting groove 301. As needed, the two sides of the partition 303 are placed in the adjusting groove 301 in appropriate positions. Then, the partition 303 is pushed. When the partition 303 slides to the top of the adjusting groove 301, the limiting block 304 is engaged inside the limiting groove 302, thus fixing the partition 303. At this time, the partition 303 divides the space inside the main body 1 of the carriage into the state required by the user. The temperature sensor 203 senses the temperature inside the main body 1 of the carriage. When the temperature is high and exceeds the set threshold, When the temperature sensor 203 transmits the sensed temperature data to the controller 201, the controller 201 is electrically connected to the refrigeration unit 202 and the fan 204. The controller 201 controls the refrigeration unit 202 to work, causing it to deliver cold air into the interior of the carriage body 1. Since the cold air accumulates at the bottom of the carriage body 1, the controller 201 controls the fan 204 to work. The fan 204 then draws the cold air from the bottom of the carriage body 1 and sends it to the delivery pipe 207 through the connecting pipe 206. Since the delivery pipe 207 is equipped with a nozzle 208, the nozzle 208 blows the cold air out of the delivery pipe 207, thereby causing the air inside the carriage body 1 to circulate. At this time, the temperature inside the carriage body 1 can be reduced quickly and the temperature is uniform from top to bottom.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A temperature self-regulating device for a cold chain vehicle compartment, comprising a main body of the compartment (1), characterized in that: The main body of the carriage (1) is equipped with a control mechanism (2) and an adjustment mechanism (3). The control mechanism (2) includes a controller (201). A refrigeration unit (202) is installed on the inner wall of the carriage body (1) near the controller (201). A temperature sensor (203) is installed on the inner wall of the carriage body (1). A fan (204) is installed at the bottom of the carriage body (1). A fixing ring (205) is fixedly connected to the bottom of the carriage body (1). A connecting pipe (206) is connected to one end of the fan (204). A conveying pipe (207) is sealed to the top of the connecting pipe (206). A nozzle (208) is installed on the surface of the conveying pipe (207).
2. The self-regulating temperature device for a cold chain vehicle compartment according to claim 1, characterized in that: The controller (201) is electrically connected to the refrigeration unit (202).
3. The self-regulating temperature device for a cold chain vehicle compartment according to claim 1, characterized in that: The temperature sensor (203) is electrically connected to the controller (201), and the fan (204) is electrically connected to the controller (201).
4. The self-regulating temperature device for a cold chain vehicle compartment according to claim 1, characterized in that: The delivery pipe (207) passes through the interior of the fixing ring (205).
5. The self-regulating temperature device for a cold chain vehicle compartment according to claim 1, characterized in that: The adjustment mechanism (3) includes an adjustment groove (301), a limiting groove (302) is provided on the inner wall of the carriage body (1), a partition (303) is fitted inside the adjustment groove (301), a limiting block (304) is fixedly connected to one end of the partition (303), and a ventilation hole (305) is provided on one side of the surface of the partition (303).
6. The self-regulating temperature device for a cold chain vehicle compartment according to claim 5, characterized in that: The adjustment groove (301) is provided in five sets, and the adjustment groove (301) is connected to the limiting groove (302).
7. The self-regulating temperature device for a cold chain vehicle compartment according to claim 5, characterized in that: The limiting block (304) and the limiting groove (302) are sized to match.