A self-heating device for communication equipment startup in extremely cold environments

Abstract

The present invention discloses a self-heating device for starting communication equipment in an extremely cold environment, comprising a chassis body and a chassis cover, wherein the communication equipment is arranged inside the chassis body, wherein the chassis body comprises a chassis bottom and a first side wall, a second side wall, a third side wall, and a fourth side wall sealed to the chassis bottom; the first side wall, the second side wall, the third side wall, and the fourth side wall are each composed of an outer frame and an inner frame connected to each other, and a retractable middle layer is provided between the outer frame and the inner frame of the second side wall, the third side wall, and the fourth side wall; the middle layer is filled with a self-heating material that can react with oxygen to generate heat, and the middle layer can be retracted between the outer frame and the inner frame to adjust the contact area between the self-heating material and the oxygen in the air. The present invention can provide sufficient heat in a very short time, ensuring the rapid startup of the communication equipment in an extremely cold environment, which is beneficial for responding to emergencies and improving the reliability of the equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of heating devices, and in particular relates to a self-heating device activated by communication equipment in an extremely cold environment. Background Art

[0002] Extremely cold regions experience low temperatures and last for extended periods. Winter temperatures typically range from -10°C to -20°C, with some reaching as low as -45°C. In these environments, the batteries in communication equipment become unstable due to the low temperatures. These conditions include: decreased battery performance, freezing of internal components, weakened rigidity of metal hardware materials, abnormal signal transmission characteristics of the communication baseband chip, and decreased sensitivity of external antennas. During these conditions, communication equipment faces difficulty starting up, and in extreme cases, may even fail to start, severely impacting the communication experience. Once a communication device successfully starts up, it generates heat during operation. At this point, the device's reliance on external heat sources decreases, and the heat generated by these external heat sources needs to be regulated to keep the device operating at a suitable temperature.

[0003] Existing solutions for communication equipment startup in extreme cold conditions involve using an external power source to heat the device, ensuring it is at a temperature suitable for normal startup. For some small devices, this can also be achieved by placing them close to the body, using body heat to heat the device to the minimum startup temperature.

[0004] However, when using an external power source for heating, the cold weather requires the external power source to be preheated. This results in a long startup time, high energy consumption, and complex operation, making it difficult to meet the requirements for fast startup in extremely cold environments. Furthermore, because the external power source also needs to be started before heating can be provided, startup failures may occur in extremely cold conditions, resulting in a poor user experience. Summary of the Invention

[0005] To address the problems of slow heating speed, high energy consumption, complicated operation, and possible startup failure in existing communication equipment under extremely cold conditions, the present invention provides a self-heating device for communication equipment startup under extremely cold conditions. The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0006] The present invention provides a self-heating device for communication equipment started in an extremely cold environment, comprising a chassis body and a chassis cover, wherein the communication equipment is arranged inside the chassis body, wherein:

[0007] The chassis body includes a chassis bottom and a first side wall, a second side wall, a third side wall and a fourth side wall sealed to the chassis bottom;

[0008] The first side wall, the second side wall, the third side wall, and the fourth side wall are all composed of an outer frame and an inner frame connected to each other. A retractable intermediate layer is provided between the outer frame and the inner frame of the second side wall, the third side wall, and the fourth side wall; the intermediate layer is filled with a self-heating material that can react with oxygen to generate heat, and the intermediate layer can be pulled between the outer frame and the inner frame to adjust the contact area between the self-heating material and oxygen in the air; the outer frame can prevent the heat generated by the self-heating material from entering the external environment, and the inner frame can allow the heat generated by the self-heating material to enter the interior of the chassis body to heat the communication device;

[0009] A device interface hole is formed on the first side wall, and the device interface hole extends from the outer surface of the outer frame to the inner surface of the inner frame;

[0010] The case cover is provided with a diversion opening, which can be opened when the air pressure inside the case body is lower than the ambient air pressure to balance the pressure difference between the inside and outside of the case body.

[0011] In one embodiment of the present invention, the outer machine frame and the box cover are made of modified silicate materials that have undergone nano-processing; and the inner machine frame is made of carbon nano-materials.

[0012] In one embodiment of the present invention, the self-heating material includes 55-60 parts by mass of reduced iron powder, 10-11 parts by mass of wood powder, 5 parts by mass of activated carbon and 3-4 parts by mass of salt.

[0013] In one embodiment of the present invention, 10 to 15 parts by mass of potassium peroxide is further added to the self-heating material as a catalyst.

[0014] In one embodiment of the present invention, a hole cover is connected to the diversion opening, the inner wall of the hole cover is connected to the inner wall of the box cover through a spring, and when the air pressure inside the chassis body is the same as the external ambient pressure, the hole cover can close the diversion opening.

[0015] In one embodiment of the present invention, a pull-out handle is provided on the top of the middle interlayer, and movable tooth structures are provided on the inner surface of the outer layer frame and the outer surface of the inner layer frame for clamping the middle interlayer at different positions.

[0016] In one embodiment of the present invention, a control switch is further provided on the outer machine frame, and the control switch is connected to the tooth structure through a driving mechanism to control the tilt angle of the tooth structure relative to the middle interlayer.

[0017] In one embodiment of the present invention, a detachable waste collection trough is further provided at the bottom of the second side wall, the third side wall and the fourth side wall, and the waste collection trough is communicated with the lower end of the middle interlayer.

[0018] In one embodiment of the present invention, at least one pluggable interface is further provided on the outer machine frame of the second side wall, the third side wall and the fourth side wall, and the pluggable interface extends from the outer machine frame to the middle interlayer.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention proposes a self-heating device for starting communication equipment in an extremely cold environment, comprising a chassis body and a chassis cover, wherein the communication equipment is arranged inside the chassis body, wherein the chassis body comprises an outer frame and an inner frame connected to each other, and a retractable middle layer is provided between the outer frame and the inner frame, wherein the outer frame comprises a heat-insulating material, and the inner frame comprises a heat-conductive material, and the middle layer can be freely filled with high-performance self-heating materials of different proportions, so as to maximize the utilization rate of energy, provide sufficient heat in a very short time, ensure the rapid startup of the communication equipment in an extremely cold environment, be conducive to responding to emergencies and improving the reliability of the equipment, and at the same time, be simple to operate, facilitate the work of communication testers, and solve the problem of difficulty in starting communication equipment in an extremely cold environment.

[0021] 2. The present invention designs a diversion opening that can automatically control the opening and closing of the diversion opening according to the pressure difference between the inside and outside of the device, thereby increasing the duration of the reaction and the heat intensity in the device.

[0022] 3. The middle interlayer of the present invention is a retractable structure, which can control the speed of the reaction by controlling the area of ​​contact between the reactants inside the interlayer and the air, thereby adjusting the temperature inside the device.

[0023] 4. The present invention provides a dual-purpose opening at the bottom of the device for filling the self-heating fuel and removing the waste, which can conveniently fill the self-heating material and remove the waste.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a self-heating device activated by a communication device in an extremely cold environment, provided by an embodiment of the present invention;

[0026] Figure 2 It is a cross-sectional schematic diagram of an outer machine frame, a middle interlayer, and an inner machine frame provided by an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1- Chassis body; 101- First side wall; 102- Second side wall; 103- Third side wall; 104- Fourth side wall; 2- Chassis cover; 3- Communication equipment; 4- Outer frame; 5- Inner frame; 6- Middle interlayer; 7- Equipment interface hole; 8- Diversion opening; 9- Hole cover; 10- Spring; 11- Pull-out handle; 12- Tooth structure; 13- Control switch; 14- Waste collection trough; 15- Pluggable interface. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the following is a detailed description of a self-heating device for starting a communication device in an extremely cold environment proposed by the present invention in combination with the accompanying drawings and specific implementation methods.

[0030] The aforementioned and other technical contents, features, and effects of the present invention are clearly presented in the following detailed description of the specific embodiments in conjunction with the accompanying drawings. Through the description of the specific embodiments, a deeper and more specific understanding of the technical means and effects adopted by the present invention to achieve the intended purpose can be obtained. However, the accompanying drawings are provided for reference and illustration purposes only and are not intended to limit the technical solutions of the present invention.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations are intended to cover non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or device comprising the element.

[0032] Example 1

[0033] This embodiment provides a self-heating device for activating communication equipment in extremely cold environments. The self-heating device comprises a chassis structure with a sandwich layer, within which the communication equipment is placed. By adding or removing high-performance self-heating materials from the sandwich layer, the chassis temperature is quickly raised to the startup temperature of the communication equipment, allowing the communication equipment to successfully start up. Furthermore, during operation, the sandwich layer is pulled in and out to increase or decrease the contact area between the self-heating material and the air, depending on the heat generated by the communication equipment. This ensures that the chassis temperature remains within the normal operating temperature of the communication equipment. The ability to autonomously control the addition of heating materials overcomes the shortcomings of traditional methods, such as long heating times and complex operations, and provides a strong guarantee for the startup of communication equipment in extremely cold regions.

[0034] Specifically, see Figure 1 and Figure 2 , Figure 1 This is a structural diagram of a self-heating device activated by a communication device in an extremely cold environment provided by an embodiment of the present invention. Figure 2 It is a cross-sectional schematic diagram of an outer frame, an intermediate layer, and an inner frame provided by an embodiment of the present invention. The self-heating device includes a chassis body 1 and a chassis cover 2, and a communication device 3 is arranged inside the chassis body 1, wherein the chassis body 1 includes a chassis bottom (not shown in the drawings) and a first side wall 101, a second side wall 102, a third side wall 103, and a fourth side wall 104 that are sealed to the chassis bottom. The first side wall 101, the second side wall 102, the third side wall 103, and the fourth side wall 104 are all composed of an outer frame 4 and an inner frame 5 that are connected to each other, wherein a retractable intermediate layer 6 is provided between the outer frame 4 and the inner frame 5 of the second side wall 102, the third side wall 103, and the fourth side wall 104, as shown in FIG. Figure 2 The middle interlayer 6 is filled with a self-heating material. When the self-heating material receives air, it can react with oxygen in the air to quickly release energy and convert it into heat energy, and can generate heat stably. In addition, the middle interlayer 6 can be pulled between the outer frame 4 and the inner frame 5 to adjust the contact area between the self-heating material and the oxygen in the air; the outer frame 4 can prevent the heat generated by the self-heating material from dissipating to the external environment, and the inner frame 5 can allow the heat generated by the self-heating material to enter the interior of the chassis body 1 to heat the communication device 3, so that the communication device is at a more suitable temperature.

[0035] Specifically, in this embodiment, the outer frame 4 and cover 2 are both made of thermal insulation material, the inner frame 5 is made of high-performance thermally conductive material, and the intermediate layer 6 can be freely filled with high-performance self-heating material. The communication device 3 to be activated is located within the chassis body 1. Preferably, the outer frame 4 and cover 2 are made of a nano-processed modified silicate material, which has extremely low thermal conductivity and good thermal stability. This material has excellent thermal insulation properties, effectively blocking external cold air from entering the chassis while preventing internal heat from escaping, thereby extending the durability of the self-heating material. The inner frame 5 is made of a carbon nanomaterial that can transfer heat.

[0036] In practice, the size of the self-heating device's chassis body can be customized according to specific requirements, such as the volume of the communication device to be activated, to ensure a more precise fit. To ensure the chassis's thermal insulation, the present invention also employs a sealed design. Specifically, the chassis body 1 and the chassis cover 2 are connected in a sealable manner to isolate the chassis interior from the external environment and reduce heat exchange. Any suitable existing sealing method can be used for this purpose, and this is not a limitation herein.

[0037] Continue to see Figure 1 In this embodiment, a device interface hole 7 is provided on the first side wall 101. The device interface hole 7 extends from the outer surface of the outer frame 4 to the inner surface of the inner frame 5 and can be circular or square. Specifically, to ensure the normal use of the interface or antenna of the communication device 3, a sealable device interface hole 7 is reserved on the first side wall 101 in this embodiment. The device interface hole 7 extends from the outer surface of the outer frame 4 to the inner surface of the inner frame 5. The interface or antenna of the communication device 3 can extend through the device interface hole 7 to communicate or connect with other external devices. The periphery of the device interface hole 7 is filled with a heat-insulating material, which can heat the extended antenna or interface, thereby minimizing the temperature drop of the device caused by the cold bridge effect. To maintain the sealing of the chassis, the reserved device interface hole 7 is as close as possible to the antenna or interface that needs to be extended.

[0038] The self-heating material of this embodiment includes 55 to 60 parts by mass of reduced iron powder, 10 to 11 parts by mass of wood powder, 5 parts by mass of activated carbon and 3 to 4 parts by mass of table salt. Specifically, the key components of the self-heating material are reduced iron powder, wood powder, activated carbon and table salt; if there is no wood powder in the formula, the iron powder will quickly harden and no longer generate heat, and activated carbon has a strong adsorption property for gas. The heat of self-heating comes from the heat released by the rapid reaction of reduced iron powder with oxygen in the air, which makes the heat greater than the heat dissipation and causes the temperature to rise. In this reaction, the role of water and wood powder is to mix and disperse various solid powder particles evenly, provide a contact surface for gas-solid two-phase reaction, which is conducive to the complete reaction of iron powder and increase the heat capacity of the formula.

[0039] The reaction process of this embodiment is:

[0040] Negative electrode Fe-2e - =Fe 2+

[0041] Positive electrode O2-2H2O+4e - =4OH -

[0042] The overall reaction is 2Fe+O2+2H2O=2Fe(OH)2

[0043] 4Fe(OH)2+2H2O+O2=4Fe(OH)3

[0044] 2Fe(OH)3=Fe2O3+3H2O

[0045] It should be noted that the water required at the beginning of the reaction comes from the moisture in the air, and the moisture generated during the reaction is absorbed by the desiccant activated carbon and can be used for subsequent reactions.

[0046] The self-heating material also incorporates carbon nanotubes, which enhance thermal conductivity and improve heating efficiency. This allows for rapid and stable heating, significantly improving efficiency. By adjusting the ratio of metal oxide to carbon nanotubes and the preparation process, precise control of the heating temperature and rate can be achieved, resulting in rapid temperature rise and faster startup of communication equipment.

[0047] Furthermore, in order to better improve the heating efficiency, 10 to 15 parts by mass of potassium peroxide is added to the self-heating material as a catalyst. In order to facilitate the connection between the cables on the communication equipment and the external equipment, in addition to the above-mentioned device interface holes 7, the outer layer frame 4 of the first side wall 101, the second side wall 102, the third side wall 103 and the fourth side wall 104 of this embodiment can also be provided with a pluggable interface 15. The pluggable interface 15 extends from the outer layer frame 4 to the inner layer frame 5. The pluggable interface 15 is located on one side of the middle interlayer 6 and does not pass through the middle interlayer 6. The position and number of the pluggable interface 15 can be designed according to the actual cable arrangement of the communication equipment. The pluggable interface 15 can be a through hole of appropriate size opened at an appropriate position on the outer layer frame 4, and a sealing plug is provided in the through hole. When the pluggable interface 15 needs to be used, the sealing plug is opened, and when it is not needed, it is sealed with the sealing plug to prevent cold air from entering.

[0048] During the startup of the communication equipment, it is possible to choose whether to pull out the retractable interlayer according to the ambient temperature so that the external air contacts the self-heating material. The potassium peroxide in the self-heating material reacts with the carbon dioxide in the air to generate oxygen and potassium carbonate, which will further promote the redox reaction of the metal oxide in the self-heating material and generate a large amount of heat. The self-heating material does not need to rely on an external power supply, thus avoiding potential safety hazards. The safety of use is ensured by accurately controlling the heating temperature and heating rate. Since the communication equipment will also generate temperature after startup, the heat provided by the external heat source can be appropriately reduced when the communication equipment is running. The present invention adopts a retractable interlayer method, by placing the self-heating material at the interlayer, and controlling the contact area between the self-heating material and the air by pulling the interlayer during use to control the internal temperature, so as to always be in the temperature range required for the normal operation of the communication equipment. At the same time, the pluggable interface can also be opened or closed depending on the reaction situation, so that the area of ​​the reactant contacting oxygen increases or decreases, thereby controlling the reaction speed, so that the communication equipment is always under a stable temperature operation.

[0049] Furthermore, the case cover 2 of this embodiment is provided with a diversion opening 8, which can be opened when the air pressure inside the chassis body 1 is lower than the ambient pressure to balance the pressure difference between the inside and outside of the chassis body 1. The diversion opening 8 is connected to a hole cover 9, the inner wall of the hole cover 9 is connected to the inner wall of the case cover 2 by a spring 10, and when the air pressure inside the chassis body 1 is the same as the external ambient pressure, the hole cover 9 can close the diversion opening 8. Specifically, in order to better automatically control the reaction intensity and reaction time inside the chassis body 1, this embodiment reserves a diversion opening 8 with a spring support on the case cover 2. The diversion opening 8 is connected to a hole cover 9, which can be opened inward, and the spring 10 provides a minimum force to support the hole cover 9 to close the diversion opening 8. When the atmospheric pressure inside and outside the closed chassis body 1 is consistent, the diversion opening 8 is automatically closed under the joint action of the hole cover 9 and the spring 10. After the diversion opening 8 is closed, the chemical reaction of the self-heating material inside the chassis body 1 will consume oxygen (the reduced iron powder reacts with oxygen). At this time, the pressure inside the chassis body 1 will decrease. When the pressure drops to a certain level, the force caused by the pressure difference between the inside and outside of the chassis body 1 will pull the spring 10 and the hole cover 9, causing the diversion opening 8 to automatically open. After the diversion opening 8 is opened, due to the inflow of external air, the pressure difference between the inside and outside of the chassis body will tend to be consistent. At this time, the diversion opening 8 will automatically close again. In this way, automatic oxygen replenishment is achieved to enable the chemical reaction inside the sealed chassis to continue, keeping the temperature in a relatively stable state.

[0050] In addition, a pull-out handle 11 is provided on the top of the middle interlayer 6. Figure 2As shown, movable tooth structures 12 are provided on the inner surface of the outer machine frame 4 and the outer surface of the inner machine frame 5 for clamping the intermediate layer 6 at different positions. A control switch 13 is also provided on the outer machine frame 4. The control switch 13 is connected to the tooth structures 12 via a drive mechanism to control the inclination angle of the tooth structures 12 relative to the intermediate layer 6.

[0051] Specifically, a pull-out handle 11 is provided on the top of the middle interlayer 6 of the self-heating device. By pulling out the handle 11, the contact area between the reactants in the middle interlayer 6 and the air can be artificially controlled, thereby controlling the temperature in the enclosed space.

[0052] A removable waste collection trough 14 is also provided at the bottom of the second side wall 102, the third side wall 103 and the fourth side wall 104. The waste collection trough 14 is connected to the lower end of the middle interlayer 6. The waste generated by the reaction of the self-heating material will fall into the waste collection trough 14. The reaction waste can be cleaned by disassembling the waste collection trough 14.

[0053] The present invention proposes a self-heating device for starting communication equipment in an extremely cold environment, comprising a chassis main body and a chassis cover, wherein the communication equipment is arranged inside the chassis main body, wherein the chassis main body comprises an outer frame and an inner frame connected to each other, and a retractable middle layer is provided between the outer frame and the inner frame, wherein the outer frame comprises a heat-insulating material, and the inner frame comprises a heat-conductive material, and the middle layer can be freely filled with high-performance self-heating materials of different proportions, so as to maximize the utilization rate of energy and provide sufficient heat in an extremely short time, thereby ensuring the rapid startup of the communication equipment in an extremely cold environment, being conducive to responding to emergencies and improving the reliability of the equipment, and being simple to operate, facilitating the work of communication testers, solving the problem of difficulty in starting communication equipment in an extremely cold environment, being suitable for various extremely cold environments, and improving the reliability and continuous operation capability of the communication equipment.

[0054] The present invention designs a diversion opening that can automatically control the opening and closing of the diversion opening according to the pressure difference between the inside and outside of the device, thereby improving the duration of the reaction and the heat intensity in the device. The middle interlayer of the present invention is a retractable structure, which can control the speed of the reaction by controlling the area of ​​contact between the reactants inside the interlayer and the air, thereby adjusting the temperature inside the device. The present invention provides a dual-purpose opening at the bottom of the device for filling self-heating fuel and removing waste, which can conveniently fill self-heating materials and remove waste.

[0055] In the several embodiments provided herein, it should be understood that the apparatus and method disclosed herein can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the module division is merely a logical functional division. In actual implementation, other division methods may be used. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not implemented.

[0056] In addition, the functional modules in various embodiments of the present invention may be integrated into a single processing module, each module may exist physically separately, or two or more modules may be integrated into a single module. The integrated modules may be implemented in the form of hardware or hardware plus software functional modules.

[0057] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A self-heating device for communication equipment activated in an extremely cold environment, characterized in that: The invention comprises a chassis body (1) and a chassis cover (2), wherein a communication device (3) is arranged inside the chassis body (1), wherein: The chassis body (1) comprises a chassis bottom and a first side wall (101), a second side wall (102), a third side wall (103) and a fourth side wall (104) sealed to the chassis bottom; The first side wall (101), the second side wall (102), the third side wall (103) and the fourth side wall (104) are all composed of an outer frame (4) and an inner frame (5) connected to each other. A retractable intermediate layer (6) is provided between the outer frame (4) and the inner frame (5) of the second side wall (102), the third side wall (103) and the fourth side wall (104); the intermediate layer (6) is filled with a self-heating material that can react with oxygen to generate heat, and the intermediate layer (6) can be retracted between the outer frame (4) and the inner frame (5) to adjust the contact area between the self-heating material and oxygen in the air; the outer frame (4) can prevent the heat generated by the self-heating material from entering the external environment, and the inner frame (5) can allow the heat generated by the self-heating material to enter the interior of the chassis body (1) to heat the communication device (3); A device interface hole (7) is provided on the first side wall (101), and the device interface hole (7) extends from the outer surface of the outer machine frame (4) to the inner surface of the inner machine frame (5); The case cover (2) is provided with a diversion opening (8), which can be opened when the air pressure inside the case body (1) is lower than the ambient air pressure to balance the pressure difference between the inside and outside of the case body (1).

2. The self-heating device for communication equipment activated in an extremely cold environment according to claim 1, characterized in that: The material of the outer machine frame (4) and the box cover (2) is a modified silicate material that has been subjected to nano-processing; the material of the inner machine frame (5) is a carbon nano-material.

3. The self-heating device for communication equipment activated in an extremely cold environment according to claim 1, characterized in that: The self-heating material includes 55 to 60 parts by mass of reduced iron powder, 10 to 11 parts by mass of wood powder, 5 parts by mass of activated carbon and 3 to 4 parts by mass of salt.

4. The self-heating device for communication equipment activated in an extremely cold environment according to claim 3, characterized in that: 10 to 15 parts by mass of potassium peroxide is further added to the self-heating material as a catalyst.

5. The self-heating device for communication equipment activated in an extremely cold environment according to claim 1, characterized in that: The diversion opening (8) is connected to a hole cover (9), the inner wall of the hole cover (9) is connected to the inner wall of the box cover (2) via a spring (10), and when the air pressure inside the chassis body (1) is the same as that of the external environment, the hole cover (9) can close the diversion opening (8).

6. The self-heating device for communication equipment activated in an extremely cold environment according to claim 1, characterized in that: A pull-out handle (11) is provided on the top of the middle interlayer (6), and movable tooth structures (12) are provided on the inner surface of the outer machine frame (4) and the outer surface of the inner machine frame (5) for clamping the middle interlayer (6) at different positions.

7. The self-heating device for communication equipment activated in an extremely cold environment according to claim 6, characterized in that: The outer machine frame (4) is further provided with a control switch (13), and the control switch (13) is connected to the tooth structure (12) through a driving mechanism to control the tilt angle of the tooth structure (12) relative to the middle interlayer (6).

8. The self-heating device for communication equipment activated in an extremely cold environment according to claim 1, characterized in that: The bottoms of the second side wall (102), the third side wall (103) and the fourth side wall (104) are also provided with detachable waste collection troughs (14), and the waste collection troughs (14) are communicated with the lower end of the middle interlayer (6).

9. The self-heating device for communication equipment activated in an extremely cold environment according to claim 8, characterized in that: At least one pluggable interface is also provided on the outer machine frame (4) of the second side wall (102), the third side wall (103) and the fourth side wall (104), and the pluggable interface extends from the outer machine frame (4) to the middle interlayer (6).

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