Elastic dc pod with airflow distribution system

Abstract

The application discloses an elastic DC cabin with an air flow distribution system, and belongs to the technical field of data center heat dissipation and ventilation, comprising a pair of parallel arranged cabinet units and a closed cold aisle arranged between the two cabinet units, wherein each cabinet unit is composed of a plurality of cabinets, an air flow adjusting unit is arranged between the cabinet and the closed cold aisle, the cabinet comprises a frame body and a plurality of support seat plates arranged in the frame body, and a temperature sensor for detecting the temperature of a server area is arranged on the support seat plate; the air flow adjusting unit comprises a containing frame and a plurality of flow control plates slidingly arranged in the containing frame, a ventilation hole is arranged on the flow control plate, a baffle is rotatably arranged in the ventilation hole, and the swing amplitude of the baffle is adjusted according to the detection value of the temperature sensor. Through the cooperative action of real-time temperature monitoring and the air flow adjusting unit, the cold air can be accurately distributed according to the actual heat dissipation of the server, the optimal temperature requirement of the data center is met, and energy is significantly saved.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of data center heat dissipation ventilation, in particular to an elastic DC cabin with an air flow distribution system. BACKGROUND

[0002] In recent years, the rapid development of new technologies such as 5G and industrial internet and the accelerated construction of new smart cities have brought about a large amount of storage and processing demand, driving the rapid growth of demand for data center services. As a new type of digital infrastructure, data centers are increasingly becoming an important part of new infrastructure. DC cabin is a modular data center infrastructure, usually composed of frame structure, network cabinet, air conditioner, power column cabinet and other components. They are designed as enclosed spaces to provide efficient power and cooling solutions for various data center environments.

[0003] Due to the year-round operation of server equipment, the heat density is large and the time is long, and the energy consumption of the data center air conditioning system is very large, even accounting for 30% to 40% of the total energy consumption of the data center; the method of closing the cold aisle used in the prior art to reduce energy consumption only prevents the initial diffusion of cold air flow, and the problem of reasonable distribution of air flow organization in the cold aisle has not been effectively improved, resulting in poor temperature uniformity of the data center. SUMMARY

[0004] The technical solution of the present application provides a significantly different solution from the prior art to solve the technical problems raised in the background art. Specifically, the present application mainly provides an elastic DC cabin with an air flow distribution system to solve the technical problems raised in the background art.

[0005] The technical solution adopted by the present application to solve the above technical problems is:

[0006] A cabin with an air flow distribution system, comprising a pair of parallel arranged and used for carrying servers cabinet units, and a closed cold aisle arranged between the two rows of cabinet units, each row of cabinet units is composed of a plurality of cabinets arranged front to back along the length direction of the cabinet unit, an air flow regulating unit is arranged between the cabinet and the closed cold aisle, the cabinet comprises a frame body and a plurality of support seat plates arranged inside the frame body, and a temperature sensor for detecting the temperature of the server area is arranged on the support seat plate;

[0007] The air flow regulating unit comprises a containing frame and a plurality of flow control plates slidingly arranged inside the containing frame, the flow control plates are provided with uniformly distributed ventilation channels, each ventilation channel is rotatably provided with a baffle, and a linkage assembly for synchronously driving rotation of all baffles is arranged inside the flow control plate, and the linkage assemblies of adjacent flow control plates are connected through a connecting assembly;

[0008] The flow control plate is detachably connected with a driving assembly, the driving assembly comprises a follow-up gear coaxially connected with the linkage assembly, a power gear meshing with the follow-up gear and an oscillating piece driving the power gear to rotate back and forth;

[0009] The oscillation range of the wind baffle is adjusted according to the detection value of the temperature sensor.

[0010] Preferably, the closed cold channel is provided with a closed door at both ends and airtight skylights arranged along the top.

[0011] Preferably, the containing frame is hinged to one side of the cabinet facing the closed cold channel.

[0012] Preferably, a plurality of stand columns with positioning holes are arranged inside the frame body, and the support base plate is connected with the positioning holes through fixing bolts.

[0013] Preferably, the linkage assembly comprises a vertical channel arranged inside the flow control plate, a rotating main shaft rotatably arranged in the vertical channel and coaxially connected with the follow-up gear, and the rotating main shaft and the central shaft of the plurality of wind baffles are connected through chain wheel and chain transmission, and the vertical channel is detachably connected with a clamping block at both ends.

[0014] Preferably, the connecting assembly comprises a butt joint shaft, the butt joint shaft is connected with the end of the rotating main shaft through a clamping structure at both ends; the clamping structure comprises a clamping column and a clamping groove matched with each other.

[0015] Preferably, the driving assembly further comprises two upper and lower fixing frames, the two upper and lower fixing frames are fixed on the surface of the flow control plate through bolts, the power gears are rotatably arranged on the fixing frames, the two power gears are coaxially connected through an extension rod, one of the fixing frames is provided with a mounting box, the oscillating piece is arranged in the mounting box, and the flow control plate is provided with a through groove accommodating the follow-up gear and the power gear.

[0016] Preferably, the oscillating piece comprises a rotating shaft rotatably arranged, a transmission gear rotatably arranged through a support, a rack slidably arranged and meshing with the transmission gear, a vertical slot column slidably arranged and connected with the rack, and a rotating disc rotatably arranged and driven to rotate by a motor, the rotating disc is provided with an electric push rod and a plug rod connected with each other, one end of the plug rod extends into a sliding groove in the vertical slot column, the rotating shaft and the transmission gear are connected through two intermeshing bevel gears, and the extension length of the electric push rod changes with the detection value of the temperature sensor.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] (1) In a closed cold aisle system, the heat dissipation of different servers in the same cabinet is different (due to factors such as hardware configuration, workload, age, and health status), and the existing system needs to provide cooling according to the highest temperature requirement, which easily leads to excessive cooling in the low-load area, causing energy waste, especially in the flexible DC cabin, which is compact in space and has dynamic load changes, and needs fine cooling regulation and control;

[0019] In the present application, the cold air of the closed cold aisle is distributed to the cabinet unit space through the air flow regulating unit, and enters the cabinet interior through the ventilation hole; the ventilation hole is provided with a baffle, and the swing amplitude (opening degree) of the baffle directly controls the cold air flow: the larger the opening degree, the more the baffle blocks the ventilation hole, and the smaller the cold air inflow; the opening degree of the baffle is driven by the real-time detection value of the temperature sensor: when the detection temperature rises, it indicates that the required cooling capacity of the server increases, and the opening degree of the baffle decreases to ensure sufficient cold air supply; on the contrary, when the detection temperature decreases, the required cooling capacity decreases, the opening degree of the baffle increases, and the cold air inflow in this area is reduced, so that more cold air can be dynamically distributed to the high-load server area;

[0020] Through this real-time temperature monitoring and real-time cooperative regulation mechanism of the air flow regulating unit, the cold air can be accurately distributed according to the actual heat dissipation of the server, which not only meets the needs of the flexible DC cabin to quickly respond to load fluctuations, but also significantly reduces the risk of cold and hot mixing caused by space limitations, while ensuring temperature stability, and maximizing energy utilization efficiency.

[0021] (2) In order to adapt to different specifications of servers, the present application adopts an adjustable support seat plate; the space between the upper and lower support seat plates corresponds to the heat dissipation area of the server, and the cold air flow of the ventilation hole corresponding to this area is the actual cold air inflow. When installing, the lower end fixed frame needs to be installed on the flow control plate corresponding to the lower support seat plate, and the upper end fixed frame needs to be installed on the flow control plate corresponding to the upper support seat plate. This linkage design ensures that the opening degree of the baffle corresponding to the server heat dissipation area is consistent, thereby realizing the compatibility of different specifications of servers and greatly improving the practicality and adaptability of the device.

[0022] (3) The reciprocating swing of the baffle not only effectively adjusts the cold air flow, but also dynamically changes the cold air entering direction. This disturbance effect makes the cold air more easily spread to every corner of the cabinet, improves the local air distribution, and improves the overall heat dissipation efficiency.

[0023] The present application will be explained and described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The present application is a schematic diagram of a DC cabin;

[0025] Figure 2The schematic diagram of DC cabin frame of the present application;

[0026] Figure 3 The schematic diagram of cabinet and air flow adjusting unit connection of the present application;

[0027] Figure 4 The schematic diagram of cabinet of the present application;

[0028] Figure 5 The schematic diagram of the present application Figure 4 The enlarged view of A in the present application;

[0029] Figure 6 The schematic diagram of air flow adjusting unit of the present application;

[0030] Figure 7 The schematic diagram of flow control plate and driving assembly connection of the present application;

[0031] Figure 8 The schematic diagram of flow control plate internal structure of the present application;

[0032] Figure 9 The schematic diagram of driving assembly structure of the present application;

[0033] Figure 10 The schematic diagram of the internal structure of the installation box of the present application.

[0034] Reference signs:

[0035] 1, cabinet unit; 2, closed cold aisle; 3, closed door; 4, sealed skylight;

[0036] 10, cabinet; 101, frame body; 102, support seat plate; 103, stand column; 104, positioning hole; 105, fixing bolt;

[0037] 20, air flow adjusting unit; 201, containing frame; 202, flow control plate;

[0038] 2021, ventilation channel; 2022, wind baffle;

[0039] 203, linkage assembly; 2031, rotating main shaft; 2032, vertical channel; 2033, chain wheel and chain; 2034, clamping block;

[0040] 204, connecting assembly;

[0041] 205, driving assembly; 2051, follow-up gear; 2052, power gear; 2053, telescopic rod; 2054, fixing frame; 2055, installation box; 2056, rotating shaft; 2057, transmission gear; 2058, rack; 2059, vertical slot column; 20510, bevel gear; 20511, rotating disc; 20512, insertion rod; 20513, electric push rod. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings, wherein several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intervening element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intervening element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, the use of the terms "and / or" herein is intended to include the

[0045] Embodiment one:

[0046] Please refer to the drawings Figure 1 - Figure 3 As shown in the drawings, an elastic DC cabin with air flow distribution system, including a pair of parallel arranged and used for carrying server cabinet unit 1, and set between the two rows of cabinet unit 1 closed cold aisle 2, each said cabinet unit 1 by a plurality of along the length of the cabinet unit 1 front and rear abutting arrangement of cabinet 10 is composed of, the cabinet 10 and closed cold aisle 2 between the air flow adjustment unit 20, the closed cold aisle 2 both ends are provided with closed door 3, the top is provided with along the arrangement of airtight skylight 4. Cold air is sent to the closed cold aisle 2 (closed cold pool) by air conditioning, cold air in the closed cold aisle 2 is distributed to the space where the cabinet unit 1 is located by the air flow adjustment unit 20, the cold air enters through the front end of the cabinet 10, forms hot air after cooling the equipment, and the hot air is discharged to the hot aisle through the rear end of the cabinet 10, the gas in the hot aisle returns to the air return port of the air conditioner, so as to form a closed cold aisle system for the DC cabin.

[0047] The cabinet 10 includes a frame body 101 and a plurality of support seat plates 102 arranged inside the frame body 101, and a temperature sensor for detecting the temperature of the server area is arranged on the support seat plate 102; the server is seated on the support seat plate 102, and the server cooling area is between the upper and lower support seat plates 102, the temperature sensor is used for detecting the temperature of the area, and the temperature sensor is connected with the DC cabin master control telecommunication.

[0048] Embodiment Two

[0049] Based on Embodiment One, please refer to the drawings Figure 3 Figure 8 As shown in the drawings, the airflow adjustment unit 20 includes a containing frame 201 and a plurality of flow control plates 202 slidingly arranged inside the containing frame 201, and the containing frame 201 is hinged to the side of the cabinet 10 facing the closed cold aisle 2. The airflow adjustment unit 20 is installed in a hinged manner so that it does not interfere with the maintenance operation of the staff on the servers.

[0050] The flow control plate 202 is provided with uniformly distributed air vent channels 2021, and each air vent channel 2021 is rotatably installed with a baffle 2022. The flow control plate 202 is internally provided with a linkage assembly 203 for synchronously driving the rotation of all baffles 2022. The linkage assemblies 203 of adjacent flow control plates 202 are connected in transmission through a connecting assembly 204, and the swing amplitude of the baffle 2022 is adjusted according to the detection value of the temperature sensor.

[0051] In the same cabinet 10, it is a very common phenomenon that different servers have different heat dissipation amounts, which is caused by factors such as hardware configuration difference, unbalanced work load, server age and health status, etc. However, in the existing closed cold aisle system, the air conditioner needs to output cold energy according to the highest temperature requirement, which will cause the low-load server area to be possibly over-cooled and waste energy. In the DC cabin, the cold air in the closed cold aisle 2 is distributed to the space where the cabinet unit 1 is located through the airflow adjustment unit 20, i.e. the cold air enters the inside of the cabinet 10 through the air vent channels 2021. Since the baffles 2022 are arranged in the air vent channels 2021, the swing amplitude of the baffles 2022 affects the cold air intake amount. The greater the swing amplitude of the baffle 2022, the greater the shielding of the air vent channel 2021, which reduces the cold air intake amount. Since the swing amplitude of the baffle 2022 responds to the detection value of the temperature sensor, when the temperature sensor detects a higher temperature, the server inside the cabinet 10 needs a larger amount of cold air, and accordingly, the swing amplitude of the baffle 2022 is smaller, which ensures a good cold air intake amount. Conversely, when the temperature sensor detects a lower temperature, the server inside the cabinet 10 needs a smaller amount of cold air, and accordingly, the swing amplitude of the baffle 2022 is larger, so that the cold air can be dissipated to the remaining server area with a larger heat dissipation amount. Through real-time monitoring of the temperature and adjustment of the airflow adjustment unit 20, the cold air is distributed according to the heat dissipation amount of the server, which meets the best requirement of the data center for temperature, thereby saving energy.

[0052] ​When the baffle 2022 is set in the vent 2021 in a blade shape, at this time, it has the minimum influence on the cold air flow, the swing reset is 0°, the initial swing amplitude of the baffle 2022 is 60°, that is, it is set in a blade shape and each deflects 30° left and right. The temperature detection of the temperature sensor should be designed according to different types of DC cabins. If the temperature range of the current DC cabin is 10-25℃, then the standard temperature detected by the temperature sensor should be 15-20℃, and the swing amplitude of the baffle 2022 should be increased when the standard temperature is lower, and it should be reduced when the standard temperature is higher.

[0053] Example three:

[0054] Based on the embodiment two, please refer to the drawings Figure 3 - Figure 8 As shown in the drawings, the linkage assembly 203 includes a vertical channel 2032 arranged inside the flow control plate 202, a rotating main shaft 2031 is rotatably arranged in the vertical channel 2032, and the rotating main shaft 2031 is coaxially connected with the follow-up gear 2051. The rotating main shaft 2031 is connected with the center shaft of the plurality of baffles 2022 through the chain wheel and chain 2033. The vertical channel 2032 is detachably connected with the clamping block 2034 at both ends. In the same flow control plate 202, since the rotating main shaft 2031 is connected with the center shaft of the plurality of baffles 2022 through the chain wheel and chain 2033, the swing amplitudes of the baffles 2022 on the same flow control plate 202 are the same.

[0055] The connecting assembly 204 includes a butt joint shaft, the ends of the butt joint shaft are connected with the ends of the rotating main shaft 2031 through a clamping structure. The clamping structure includes a clamping column and a clamping groove matched with each other. The swing amplitudes of the baffles 2022 of the upper and lower flow control plates 202 connected through the connecting assembly 204 are the same.

[0056] Example four:

[0057] Based on the embodiment three, please refer to the drawings Figure 3 - Figure 10 As shown in the drawings, the driving assembly 205 includes a follow-up gear 2051 coaxially connected with the linkage assembly 203, a power gear 2052 engaged with the follow-up gear 2051, and a swing piece driving the power gear 2052 to rotate back and forth. The swing piece is arranged inside the installation box 2055, and the flow control plate 202 is provided with a through slot accommodating the follow-up gear 2051 and the power gear 2052.

[0058] The swing member comprises a rotating shaft 2056 rotatingly installed, a transmission gear 2057 rotatingly installed through a support, a rack 2058 slidingly installed and engaged with the transmission gear 2057, a vertical slot column 2059 slidingly installed and connected with the rack 2058, and a rotating disc 20511 rotatingly installed and driven to rotate by a motor, the rotating disc 20511 is provided with an electric push rod 20513 and a plug rod 20512 connected therewith, one end of the plug rod 20512 extends into a sliding groove in the vertical slot column 2059, the rotating shaft 2056 and the transmission gear 2057 are connected in transmission through two intermeshing bevel gears 20510, and the elongation length of the electric push rod 20513 changes with the detection value of the temperature sensor.

[0059] When the electric push rod 20513 is not elongated, the axis line of the plug rod 20512 coincides with the axis line of the rotating disc 20511; in the initial state, the electric push rod 20513 is elongated by a certain length, so that the plug rod 20512 is located at an eccentric position on the rotating disc 20511, with the rotation of the rotating disc 20511, the plug rod 20512 drives the vertical slot column 2059 to swing back and forth, so that the rack 2058 drives the transmission gear 2057 to rotate back and forth, so that the rotating shaft 2056 rotates back and forth, the follow-up gear 2051 rotates back and forth by following the rotating shaft 2056 through the power gear 2052, and the swing of the wind deflector 2022 is realized, the back-and-forth swing of the wind deflector 2022 not only can limit the cold air amount, but also the swing mode can change the cold air entering direction, so that the cold air can be more easily dissipated to each place of the cabinet 10.

[0060] In the second embodiment, the swing amplitude of the wind deflector 2022 responds to the detection value of the temperature sensor, as a specific implementation manner, the swing amplitude of the wind deflector 2022 is changed by changing the elongation length of the electric push rod 20513, the elongation length of the electric push rod 20513 decreases with the increase of the standard temperature of the temperature sensor, the DC cabin master control changes the elongation length of the electric push rod 20513 according to the temperature of the temperature sensor, which can be realized through simple programming of those skilled in the art, and belongs to the common knowledge in the art, only the use is described, no transformation is made, so the control mode and circuit connection are not described in detail.

[0061] Embodiment five:

[0062] On the basis of the fourth embodiment, please refer to the accompanying drawings Figure 3 - Figure 10As shown, the frame body 101 is internally provided with a plurality of uprights 103 with positioning holes 104, and the support seat plates 102 are connected with the positioning holes 104 through fixing bolts 105. Since the servers are not of the same specification, the adjustable support seat plates 102 make the cabinet applicable to different specifications of servers; the space between the upper and lower support seat plates 102 is the heat dissipation area of the server, and the cold air passing amount of the corresponding air vent 2021 is the cold air inflow amount of the area.

[0063] The flow control plate 202 is detachably connected with a driving assembly 205, the driving assembly 205 further comprises two upper and lower fixing frames 2054, the two upper and lower fixing frames 2054 are both fixed on the surface of the flow control plate 202 through bolts, the power gears 2052 are rotatably installed on the fixing frames 2054, the two upper and lower power gears 2052 are coaxially connected through the telescopic rods 2053, and one of the fixing frames 2054 is provided with a placing box 2055. According to the positions of the two upper and lower support seat plates 102, the lower fixing frame 2054 is installed on the flow control plate 202 corresponding to the lower support seat plate 102, and the upper fixing frame 2054 is installed on the flow control plate 202 corresponding to the upper support seat plate 102, so that the swing range of the wind baffle 2022 corresponding to the heat dissipation area of the server is consistent, thereby the device can be applicable to different types of servers, and the applicability of the device is improved.

[0064] The above has described the application by way of example with reference to the drawings, and it is obvious that the specific implementation of the application is not limited to the above manner, and any non-essential improvement made by adopting the method concept and technical scheme of the application, or direct application of the concept and technical scheme of the application to other occasions without improvement, is within the protection scope of the application.

Claims

1. A resilient DC pod having an air flow distribution system, characterized by: The application relates to a server cabinet unit (1) and a closed cold channel (2) arranged between two cabinet units (1), each of the cabinet units (1) is composed of a plurality of cabinets (10) arranged in front of and behind each other along the length direction of the cabinet unit (1), the cabinet (10) comprises a frame body (101) and a plurality of support seat plates (102) arranged in the frame body (101), a plurality of airflow adjusting units (20) are arranged between the cabinet (10) and the closed cold channel (2), each of the airflow adjusting units (20) is opposite to the server on the support seat plate (102), and a temperature sensor for detecting the temperature of the server area is arranged on the support seat plate (102). The airflow adjusting unit (20) comprises a containing frame (201) and a plurality of flow control plates (202) slidably arranged in the containing frame (201), the flow control plate (202) is provided with uniformly distributed air vent channels (2021), each of the air vent channels (2021) is rotatably provided with a baffle (2022), the flow control plate (202) is internally provided with a linkage assembly (203) for synchronously driving the rotation of all the baffles (2022), and the linkage assemblies (203) of adjacent flow control plates (202) are drivingly connected through a connecting assembly (204). The flow control plate (202) is detachably connected with a driving assembly (205), the driving assembly (205) comprises a follow-up gear (2051) coaxially connected with the linkage assembly (203), a power gear (2052) meshing with the follow-up gear (2051) and an oscillating piece driving the power gear (2052) to rotate back and forth. The oscillation amplitude of the baffle (2022) is adjusted according to the detection value of the temperature sensor.

2. A flexible DC pod with airflow distribution system according to claim 1, characterized in that: The closed cold channel (2) is provided with closed doors (3) at both ends and airtight skylights (4) arranged along the direction of the closed cold channel (2).

3. The elastic DC pod with airflow distribution system of claim 1, wherein: The containing frame (201) is hinged to one side of the cabinet (10) facing the closed cold channel (A2).

4. The elastic DC pod with airflow distribution system of claim 1, wherein: The frame body (101) is internally provided with a plurality of vertical columns (103) with positioning holes (104), and the support seat plate (102) is connected with the positioning holes (104) through fixing bolts (105).

5. The elastic DC pod with airflow distribution system of claim 1, wherein: The linkage assembly (203) comprises a vertical channel (2032) arranged in the flow control plate (202), the vertical channel (2032) is rotatably provided with a rotating main shaft (2031) coaxially connected with the follow-up gear (2051), the rotating main shaft (2031) and the central shafts of the baffles (2022) are drivingly connected through a chain wheel and chain (2033), and the vertical channel (2032) is detachably connected with a clamping block (2034) at both ends.

6. A flexible DC pod with airflow distribution system according to claim 5, characterized in that: The connecting assembly (204) comprises a butt joint shaft, the butt joint shaft is connected with the end of the rotating main shaft (2031) through a clamping structure at both ends; and the clamping structure comprises a clamping column and a clamping groove matched with each other.

7. The elastic DC pod with airflow distribution system of claim 1, wherein: The driving assembly (205) further comprises two upper and lower fixing frames (2054) fixed on the surface of the flow control plate (202) by bolts, the power gear (2052) is rotatably installed on the fixing frame (2054), the two power gears (2052) are coaxially connected by the telescopic rod (2053), one of the fixing frames (2054) is provided with a mounting box (2055), the swing element is arranged in the mounting box (2055), and the flow control plate (202) is provided with a through groove accommodating the follow-up gear (2051) and the power gear (2052).

8. The elastic DC pod with airflow distribution system of claim 1, wherein: The swing element comprises a rotating shaft (2056) rotatably installed, a transmission gear (2057) rotatably installed through a support, a rack (2058) slidably installed and engaged with the transmission gear (2057), a vertical slot column (2059) slidably installed and connected with the rack (2058), and a rotating disc (20511) rotatably installed and driven to rotate by a motor, the rotating disc (20511) is provided with an electric push rod (20513) and a plug rod (20512) connected, one end of the plug rod (20512) extends into a sliding groove in the vertical slot column (2059), the rotating shaft (2056) and the transmission gear (2057) are connected in transmission through two intermeshing bevel gears (20510), and the extension length of the electric push rod (20513) changes with the detection value of the temperature sensor.

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