Automatic oxygen supply device

Abstract

The utility model relates to an automatic oxygen supply device which comprises a cabinet body and an oxygen generator. The oxygen generator is arranged in the cabinet body and comprises a base and a medicine cylinder, the base is fixedly arranged in the cabinet body and provided with a conductive terminal, the medicine cylinder comprises an outer cylinder, an inner cylinder, a resistance wire and a heat insulation sleeve, the inner cylinder is arranged in the outer cylinder, and the resistance wire is arranged in the heat insulation sleeve. The bottom of the inner cylinder is provided with a terminal socket electrically connected with the conductive terminal, the heat insulation sleeve is arranged in the inner cylinder, a cavity used for containing solid oxygen powder is formed in the heat insulation sleeve, the resistance wire is arranged in the cavity and electrically connected with the terminal socket, the side end of the inner cylinder is provided with an air hole, and the air hole is communicated with the cavity. And an air outlet hole is formed in the top of the outer cylinder. According to the automatic oxygen supply device, heat dissipation of the oxygen generator can be reduced, the phenomenon that electric appliance elements in the automatic oxygen supply device are overheated and damaged due to heat dissipation is avoided, and the service life of the automatic oxygen supply device is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of oxygen supply equipment technology, and in particular to an automatic oxygen supply device. Background Technology

[0002] Oxygen supply devices are widely used in various industries, such as medical oxygenation, diving oxygen cylinders, and underground engineering projects like mines. National standards require that the oxygen content inside emergency refuge facilities should be between 18.5% and 23.0%. Currently, traditional oxygen supply devices in the industry have the following problems: starting the device requires manual operation; once started, oxygen will be continuously output unless manually shut down, resulting in waste.

[0003] Chinese patent CN105381527B discloses an automatic oxygen supply device that effectively solves the aforementioned problems. This device heats a resistance wire within an oxygen generator to a certain temperature, causing a reaction in the powder within the generator to produce oxygen. The powder is a solid oxygen powder, and the main component of commonly used solid oxygen powder is sodium percarbonate. Sodium percarbonate decomposes upon heating to produce oxygen, but this process releases heat. Since the oxygen generator has poor insulation, heat dissipates outwards, easily causing excessive heat inside the automatic oxygen supply device. This can lead to overheating and damage to the electronic components of the device, reducing its lifespan. Utility Model Content

[0004] Therefore, it is necessary to provide an automatic oxygen supply device to address the problem that the oxygen generator in existing automatic oxygen supply devices has poor heat insulation, which causes heat to dissipate outward from the oxygen generator, easily leading to excessive heat inside the automatic oxygen supply device, overheating and damage to the electronic components of the automatic oxygen supply device, and reducing the service life of the automatic oxygen supply device.

[0005] An automatic oxygen supply device, comprising:

[0006] Cabinet; and

[0007] An oxygen generator is disposed within a cabinet. The oxygen generator includes a base and a cartridge. The base is fixedly disposed within the cabinet and is provided with conductive terminals. The cartridge includes an outer cylinder, an inner cylinder, a resistance wire, and a heat insulation sleeve. The inner cylinder is disposed within the outer cylinder, and a terminal socket electrically connected to the conductive terminals is provided at the bottom of the inner cylinder. The heat insulation sleeve is disposed within the inner cylinder and has a cavity for containing solid oxygen powder. The resistance wire is disposed within the cavity and is electrically connected to the terminal socket. An air hole is provided at the side end of the inner cylinder, and an air outlet is provided at the top of the outer cylinder.

[0008] In the aforementioned automatic oxygen supply device, the inner cylinder is located inside the outer cylinder, and the heat insulation sleeve is located inside the inner cylinder. The heat insulation sleeve has a cavity for containing solid oxygen powder, and the resistance wire is located inside the cavity. The heat insulation sleeve in the inner cylinder blocks heat transfer, reducing heat dissipation from the oxygen generator. Furthermore, due to the low heat transfer coefficient of gases, this effectively creates a heat insulation barrier between the outer and inner cylinders, further reducing heat dissipation from the oxygen generator and preventing overheating damage to the electrical components within the automatic oxygen supply device. This effectively extends the service life of the automatic oxygen supply device.

[0009] In one embodiment, the oxygen generator further includes a limiting frame, an upper fixing plate and a lower fixing plate are provided inside the cabinet, the base is fixedly disposed on the lower fixing plate, the limiting frame is sleeved on the outside of the cartridge, one end of the limiting frame is fixedly connected to the base, and the other end of the limiting frame is fixedly connected to the upper fixing plate.

[0010] In one embodiment, the resistance wire includes a spiral portion and a connecting portion connecting the spiral portion, the number of terminal sockets is two, the two terminal sockets are spaced apart, the spiral portion corresponds to the terminal socket one by one, and the connecting portion connects the two spiral portions.

[0011] In one embodiment, the oxygen generator further includes a top cover, and a dosing port is provided at the top of the inner cylinder, with the top cover sealing the dosing port.

[0012] In one embodiment, the heat insulation sleeve is made of ceramic fiber cotton.

[0013] In one embodiment, the automatic oxygen supply device further includes a controller, which is located inside the cabinet. The conductive terminals correspond one-to-one with the terminal sockets, and the conductive terminals are electrically connected to the controller.

[0014] In one embodiment, the cabinet includes a main shell and a flip cover connected to the main shell. The flip cover is flipped and connected to the main shell. The upper fixing plate and the lower fixing plate are disposed inside the main shell. A release space for releasing oxygen is provided between the flip cover and the upper fixing plate.

[0015] In one embodiment, the automatic oxygen supply device further includes an air outlet mechanism disposed on the flip cover. The air outlet mechanism includes an air blower, through which oxygen in the release space is released to the external environment.

[0016] In one embodiment, the automatic oxygen supply device further includes an oxygen concentration sensor for detecting the oxygen concentration value in the external environment. The oxygen concentration sensor is connected inside the main housing and is communicatively connected to the controller.

[0017] In one embodiment, the automatic oxygen supply device further includes a display screen disposed on the flip cover, and the display screen is electrically connected to the controller. Attached Figure Description

[0018] Figure 1 This is an assembly structure diagram of an automatic oxygen supply device in one embodiment of the present invention;

[0019] Figure 2 For example Figure 1 The diagram shows the internal structure of the automatic oxygen supply device.

[0020] Figure 3 For example Figure 1 The diagram shows the internal structure of the oxygen generator in the automatic oxygen supply device.

[0021] Figure 4 for Figure 3 Enlarged view of section A;

[0022] Figure 5 for Figure 3 Enlarged view of section B.

[0023] The meanings of the numbers in the attached diagram are as follows:

[0024] 100-Automatic oxygen supply device;

[0025] 10-Cabinet body, 11-Main shell, 12-Flip cover, 13-Upper fixing plate, 14-Lower fixing plate, 15-Release space;

[0026] 20-Oxygen generator, 21-Base, 22-Cylinder, 221-Outer cylinder, 2211-Gas outlet, 222-Inner cylinder, 2221-Gas outlet, 223-Resistance wire, 2231-Spiral part, 2232-Connecting part, 224-Heat insulation sleeve, 23-Conductive terminal, 24-Terminal socket, 25-Top cover, 26-Limiting frame;

[0027] 30 - Air outlet mechanism, 31 - Air outlet fan, 32 - Air outlet hinge;

[0028] 40 - Display screen. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Please see Figure 1 An automatic oxygen supply device 100 according to one embodiment of the present utility model includes a cabinet 10 and an oxygen generator 20, an exhaust fan 31, and a controller disposed in the cabinet 10.

[0036] The cabinet 10 includes a main shell 11 and a flip cover 12 connected to the main shell 11, the flip cover 12 being flipped and connected to the main shell 11. An upper fixing plate 13 and a lower fixing plate 14 are provided inside the main shell 11, and a release space 15 for releasing oxygen is provided between the flip cover 12 and the upper fixing plate 13.

[0037] Please see Figures 2 to 3 The oxygen generator 20 includes a base 21 and a cartridge 22. The base 21 is fixedly mounted on the lower fixing plate 14. The base 21 is provided with two conductive terminals 23, which are spaced apart on the base 21.

[0038] Please see Figures 3 to 5 The cartridge 22 includes an outer cylinder 221, an inner cylinder 222, a resistance wire 223, and a heat insulation sleeve 224. The outer cylinder 221 includes a main cylinder and an extension connecting the main cylinder. The top end of the main cylinder is provided with an air outlet 2211, which is connected to the release space 15.

[0039] Please see Figures 3 to 5The inner cylinder 222 is fixedly disposed inside the main cylinder. A terminal socket 24 electrically connected to the conductive terminal 23 is provided at the bottom of the inner cylinder 222. The terminal socket 24 is located inside the extension and corresponds one-to-one with the conductive terminal 23. An air hole 2221 is provided on the side end of the inner cylinder 222, allowing oxygen generated inside the inner cylinder 222 to be quickly discharged to the outer cylinder 221. Both the inner cylinder 222 and the outer cylinder 221 are made of high-temperature resistant insulating materials, such as polytetrafluoroethylene (PTFE) or polypropylene. This reduces heat dissipation from the oxygen generator 20, preventing overheating and damage to electrical components within the automatic oxygen supply device 100, and effectively extending the service life of the automatic oxygen supply device 100.

[0040] Please see Figures 3 to 5 The heat insulation sleeve 224 is disposed inside the inner cylinder 222. The heat insulation sleeve 224 has a cavity for containing solid oxygen powder. The heat insulation sleeve 224 is made of ceramic fiber cotton, which has a high temperature resistance of 1000℃~1050℃ and good heat insulation performance. It can reduce the heat dissipation of the oxygen generator 20 and avoid the phenomenon of overheating and damage to the electrical components in the automatic oxygen supply device 100 due to heat dissipation, thus effectively extending the service life of the automatic oxygen supply device 100. On the other hand, the ceramic fiber cotton can effectively prevent the solid oxygen powder in the cavity from leaking out.

[0041] Please see Figures 3 to 5 The resistance wire 223 is disposed within the cavity. The resistance wire 223 includes a spiral portion 2231 and a connecting portion 2232 connecting the spiral portion 2231. The spiral portion 2231 is electrically connected to the terminal socket 24, with each spiral portion 2231 corresponding to one of the terminal sockets 24. The connecting portion 2232 connects two spiral portions 2231. The spiral portion 2231 effectively increases the contact area between the resistance wire 223 and the solid oxygen powder, thus effectively accelerating the oxygen release rate.

[0042] Please see Figure 3 The oxygen generator 20 also includes a top cover 25, and a dosing port is provided at the top of the inner cylinder 222. The top cover 25 seals the dosing port. This allows solid oxygen powder to be added directly without removing the cartridge 22, making operation more convenient.

[0043] Please see Figure 2 The oxygen generator 20 also includes a limiting frame 26, which is sleeved on the outer side of the cartridge 22. One end of the limiting frame 26 is fixedly connected to the base 21, and the other end of the limiting frame 26 is fixedly connected to the upper fixing plate 13. In this way, the cartridge 22 can be freely installed and removed from the limiting frame 26 without having to remove the entire machine to replace the solid oxygen powder.

[0044] Please see Figure 2 The exhaust fan 31 is mounted on the flip cover 12. The exhaust fan 31 includes an exhaust fan 31 and an exhaust hinge 32. The exhaust fan 31 is located on one side of the release space 15, and the exhaust hinge 32 is located above the exhaust fan 31. Oxygen in the release space 15 is released into the external environment through the exhaust fan 31.

[0045] Please see Figure 2 The controller is located inside the cabinet 10. The conductive terminal 23 is electrically connected to the controller. The resistance wire 223 is electrically connected to the controller through the terminal socket 24 and the conductive terminal 23. The exhaust fan 31 is electrically connected to the controller.

[0046] Please see Figure 2 The automatic oxygen supply device 100 also includes an oxygen concentration sensor for detecting the oxygen concentration in the external environment. The oxygen concentration sensor is connected inside the main housing 11 and is communicatively connected to the controller. The controller can control the oxygen generator 20 to operate based on the oxygen concentration value detected by the oxygen concentration sensor.

[0047] Specifically, an oxygen concentration threshold is set within the controller, which is set within a specific range. When the oxygen concentration is not greater than the threshold, the controller controls the oxygen generator 20 to start supplying oxygen; when the oxygen concentration is less than the threshold, the controller controls the oxygen generator 20 to stop supplying oxygen. This allows for automatic control of the ambient oxygen concentration, resulting in a higher degree of automation and avoiding the drawbacks of existing technologies that require manual switching.

[0048] Please see Figure 2 The automatic oxygen supply device 100 also includes a display screen 40, which is mounted on the flip cover 12 and electrically connected to the controller. Through the display screen 40, operators can set the oxygen concentration threshold according to actual needs, making operation more convenient.

[0049] The working principle of the automatic oxygen supply device 100 in this embodiment is as follows: The inner cylinder 222 is located inside the outer cylinder 221, and the heat insulation sleeve 224 is located inside the inner cylinder 222. The heat insulation sleeve 224 has a cavity for containing solid oxygen powder. The resistance wire 223 is located inside the cavity. The heat insulation sleeve 224 is installed in the inner cylinder 222 to block heat transfer and reduce heat dissipation from the oxygen generator 20. At the same time, since the heat transfer coefficient of gas is small, it is equivalent to setting up a heat insulation barrier between the outer cylinder 221 and the inner cylinder 222, further reducing heat dissipation from the oxygen generator 20. This avoids the phenomenon of overheating and damage to the electrical components inside the automatic oxygen supply device 100 due to heat dissipation, and effectively extends the service life of the automatic oxygen supply device 100.

[0050] The beneficial effects of this utility model are as follows: the inner cylinder 222 is disposed inside the outer cylinder 221, the heat insulation sleeve 224 is disposed inside the inner cylinder 222, the heat insulation sleeve 224 is provided with a cavity for containing solid oxygen powder, the resistance wire 223 is disposed in the cavity, the heat insulation sleeve 224 is provided in the inner cylinder 222, the heat insulation sleeve 224 is provided to block heat transfer, which can reduce the heat dissipation of the oxygen generator 20. At the same time, since the heat transfer coefficient of gas is small, it is equivalent to setting up a heat insulation barrier between the outer cylinder 221 and the inner cylinder 222, further reducing the heat dissipation of the oxygen generator 20, avoiding the phenomenon of overheating and damage to the electrical components in the automatic oxygen supply device 100 due to heat dissipation, and effectively extending the service life of the automatic oxygen supply device 100.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic oxygen supply device, characterized in that, include: Cabinet; as well as An oxygen generator is disposed within a cabinet. The oxygen generator includes a base and a cartridge. The base is fixedly disposed within the cabinet and is provided with conductive terminals. The cartridge includes an outer cylinder, an inner cylinder, a resistance wire, and a heat insulation sleeve. The inner cylinder is disposed within the outer cylinder, and a terminal socket electrically connected to the conductive terminals is provided at the bottom of the inner cylinder. The heat insulation sleeve is disposed within the inner cylinder and has a cavity for containing solid oxygen powder. The resistance wire is disposed within the cavity and is electrically connected to the terminal socket. An air hole is provided at the side end of the inner cylinder, and an air outlet is provided at the top of the outer cylinder.

2. The automatic oxygen supply device according to claim 1, characterized in that, The oxygen generator also includes a limiting frame. An upper fixing plate and a lower fixing plate are provided inside the cabinet. The base is fixedly installed on the lower fixing plate. The limiting frame is sleeved on the outside of the cartridge. One end of the limiting frame is fixedly connected to the base, and the other end of the limiting frame is fixedly connected to the upper fixing plate.

3. The automatic oxygen supply device according to claim 1, characterized in that, The resistance wire includes a spiral portion and a connecting portion connecting the spiral portion. There are two terminal sockets, which are spaced apart. The spiral portion corresponds to each terminal socket, and the connecting portion connects the two spiral portions.

4. The automatic oxygen supply device according to claim 1, characterized in that, The oxygen generator also includes a top cover, and a dosing port is provided at the top of the inner cylinder, which is covered by the top cover.

5. The automatic oxygen supply device according to claim 1, characterized in that, The heat insulation sleeve is made of ceramic fiber cotton.

6. The automatic oxygen supply device according to claim 2, characterized in that, It also includes a controller, which is located inside the cabinet. The conductive terminals correspond one-to-one with the terminal sockets, and the conductive terminals are electrically connected to the controller.

7. The automatic oxygen supply device according to claim 6, characterized in that, The cabinet includes a main shell and a flip cover connected to the main shell. The flip cover is flipped and connected to the main shell. The upper fixing plate and the lower fixing plate are located inside the main shell. A release space for releasing oxygen is provided between the flip cover and the upper fixing plate.

8. The automatic oxygen supply device according to claim 7, characterized in that, It also includes an air outlet mechanism, which is located on the flip cover. The air outlet mechanism includes an air blower, through which oxygen in the release space is released to the external environment.

9. The automatic oxygen supply device according to claim 7, characterized in that, It also includes an oxygen concentration sensor for detecting the oxygen concentration in the external environment, the oxygen concentration sensor being connected inside the main housing and communicating with the controller.

10. The automatic oxygen supply device according to claim 7, characterized in that, It also includes a display screen, which is mounted on the flip cover and is electrically connected to the controller.

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