Air disinfection equipment

Abstract

The utility model discloses air disinfection equipment which comprises a shell, a main control unit, an ion generation part and a partition, the shell is used for forming a containing space, a metal strip is arranged on the outer surface of the shell, and at least part of the metal strip is exposed in the environment and can be in contact with a user; a large resistor is arranged in the accommodating space, one end of the large resistor is electrically connected with the metal strip, and the other end of the large resistor is grounded to form a first path; the main control unit is arranged in the accommodating space; the ion generation part is arranged in the accommodating space, is electrically connected with the main control unit and is used for generating and releasing electrons to the environment; and the baffle is arranged in the accommodating space, so that an electrical gap formed between a first section formed from the metal strip to the large resistor in the first path and other electronic components in the accommodating space exceeds a preset safety value. By adopting the mode, other electronic components can be effectively prevented from being damaged by high-voltage discharge, and the electrical reliability of the air disinfection equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air disinfection, and in particular to an air disinfection device. Background Art

[0002] With the rapid economic growth and the improvement of living standards, people's demand for a good living environment is also increasing, including the pursuit of clean, pollution-free air. In the past few years since the outbreak of the new coronavirus, people have further realized the severity of viral infections caused by airborne transmission, especially respiratory infections. To meet this demand, air purifiers and air disinfection equipment have been widely used.

[0003] Negative ion disinfection equipment is one type of air disinfection equipment. Currently, most negative ion disinfection equipment is large in size and is usually placed indoors (at home, in the office, etc.). It is not suitable to be carried around and it is difficult to meet people's needs for purification, disinfection, and virus isolation anytime and anywhere. To this end, the applicant has developed a portable negative ion disinfection equipment and continues to develop it to iterate products and improve the product matrix. Utility Model Content

[0004] One purpose of the present application is to provide an air disinfection device, by adding a partition in the accommodation space inside the device to isolate the section from the metal strip to the large resistor on the specific path required to form a directional cold spray ion wind from other electronic components in the accommodation space, thereby increasing the electrical gap between them, thereby preventing high-voltage discharge from damaging other electronic components, and thereby improving the electrical reliability of the air disinfection device.

[0005] The present application provides an air disinfection device, comprising a shell, a main control unit, an ion generating component and a barrier, wherein the shell is used to form a storage space, a metal strip is arranged on the outer surface of the shell, and at least a part of the metal strip is exposed to the environment and can be touched by a user; a large resistor is arranged in the storage space, one end of the large resistor is electrically connected to the metal strip, and the other end of the large resistor is grounded to form a first path; the main control unit is arranged in the storage space; the ion generating component is arranged in the storage space, electrically connected to the main control unit, and is used to generate and release electrons into the environment; the barrier is arranged in the storage space, so that the electrical gap formed between the first section formed by the metal strip to the large resistor in the first path and other electronic components in the storage space exceeds a preset safety value.

[0006] In a possible implementation, the preset safety value is not less than 2 cm.

[0007] In a possible implementation, the main control unit is integrated on a main control board, and a partition groove is provided on the main control board to divide the main control board into a first area and a second area; the electronic components on the first section except the metal strip are arranged on the first area; the other electronic components are arranged on the second area; at least a portion of the barrier passes through the partition groove to increase the electrical gap between the first section and the other electronic components.

[0008] In a possible implementation, a height difference ΔH between the top height of the partition and the height of the main control board is greater than half of the preset safety value.

[0009] In a possible implementation, a touch sensing circuit is further included. The touch sensing circuit is electrically connected to the main control unit and is used to sense whether a creature touches the metal strip and input a sensed second signal to the main control unit.

[0010] In a possible implementation, the touch sensing circuit includes a second copper clad layer and a second sampling circuit arranged on the second area, the second copper clad layer is arranged corresponding to the metal strip and is electrically connected to the second sampling circuit, and the second sampling circuit is electrically connected to the main control unit.

[0011] In a possible implementation manner, a side of the barrier close to the second copper cladding layer extends in a direction away from the metal strip to form a bent portion.

[0012] In a possible implementation, it further includes a battery and a second protective cover, wherein the second protective cover is partially disposed on the periphery of the battery, and the second protective cover abuts against one end of the bent portion.

[0013] In a possible implementation, the metal strip has an ear, a through hole corresponding to the ear is opened on the first area of ​​the main control board, a first copper cladding layer is arranged in the through hole, and the metal strip and the main control board are connected to the shell by conductive fasteners passing through the ear and the through hole in sequence.

[0014] In a possible implementation, the device is a handheld device or a wearable device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an exemplary air disinfection device provided in this application.

[0016] Figure 2 It is a schematic diagram of the internal partial structure of an exemplary air disinfection device provided in the present application.

[0017] Figure 3is an exploded view of an exemplary air disinfection device provided in the present application.

[0018] Figure 4 It is a structural schematic diagram of the main control board and some related components in the exemplary air disinfection equipment provided in this application.

[0019] Figure 5 It is another schematic diagram of the internal partial structure of the exemplary air disinfection equipment provided in the present application.

[0020] Figure 6 It is a schematic structural diagram of the upper shell of an exemplary air disinfection device provided in the present application.

[0021] Description of reference numerals:

[0022] Shell 100; accommodating space 101; upper shell 110; first surface 111; lower shell 120; first mounting groove 104; decorative plate 130; baffle 140; bending portion 141;

[0023] Main control board 200; first area 210; through hole 211; second area 220; second copper clad layer 221; separation groove 230; bending groove 240; other electronic components 250;

[0024] Ion generating component 300; carbon brush 301; carbon brush plate 302; first protective cover 303;

[0025] Metal strip 401; ear 4011; large resistor 402;

[0026] Button assembly 600;

[0027] Battery 701; Second protective cover 702;

[0028] Conductive fastener 801. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the technical solution of the present application, further explanation will be given below in conjunction with embodiments and drawings.

[0030] The applicant has previously developed an air disinfection device that can perform open or closed work in different usage scenarios. However, the structure of the device can still be further improved. To this end, a new structural design scheme is proposed in the embodiment of the present application, and a partition is added to the accommodation space inside the device to isolate the section from the metal strip to the large resistor on the specific path (also referred to as the first path in the embodiment of the present application for ease of description) required to form a directional cold spray ion wind from other electronic components in the accommodation space, thereby increasing the electrical gap between them, thereby preventing the user from touching the metal strip and causing the device to enter a closed operation when high-voltage discharge damages other electronic components, thereby improving the electrical reliability of the air disinfection device.

[0031] See also Figures 1 to 6 An embodiment of the present application provides an air disinfection device, including a housing 100 , a main control unit, an ion generating component 300 and a barrier 140 .

[0032] The shell is the main supporting structure of the air disinfection equipment and is mainly used to form a storage space. The shape of the shell can be any possible shape such as a cylinder, a cuboid, a specific object shape, etc., and this application does not limit this. For example, Figure 3 As shown, the housing is in a rectangular parallelepiped shape, including an upper housing 110 and a lower housing 120, and the sides of the two are connected together, for example, they can be welded together by ultrasonic welding or other processes, and a receiving space 101 is formed between the upper housing 110 and the lower housing 120. The specific shape and size of the receiving space can vary depending on the housing situation. Possible components, such as ion generating components, large resistors, main control units, batteries, sensors, etc., can be arranged in the receiving space.

[0033] The shell is made of non-metallic materials, such as plastic, ceramic, rubber, glass, etc. It is understandable that when the shell includes multiple different components, these components can be made of the same or different materials, and the present application does not limit this. For example, when the shell includes components such as side walls, an upper cover plate, and a lower cover plate, the side walls can be made of plastic or ceramic materials, and the upper cover plate and the lower cover plate can be made of plastic or glass materials. For another example, when the shell includes components such as Figure 3 When the upper shell 110 and the lower shell 120 are shown, the upper shell 110 and the lower shell 120 can both be made of plastic or different materials. It can also be understood that in some cases, metal parts may be partially arranged, installed or embedded on the shell, and the present application does not limit this, as long as it does not affect the normal operation of the air disinfection equipment and the generation of the cold spray ion wind.

[0034] A metal strip is provided on the outer surface of the housing, such as the side surface, and at least a portion of the metal strip is exposed to the environment and can be touched by the user. The present application does not limit the specific shape and quantity of the metal strip, which can be elliptical, square, waist-shaped, irregular, etc., and is not required to be strip-shaped, as long as it can provide a certain contact surface for the user to touch. For example, Figures 1 to 3 As shown, a metal strip 401 can be provided on both sides of the housing 100, and waist-shaped holes are provided on both sides of the housing. The metal strip 401 is adaptively embedded in the waist-shaped holes, and the outer surface is exposed to the environment and is flush or substantially flush with the outer surface of the housing. When the user holds the air disinfection device, these metal strips can be contacted more naturally. As another example, the metal strip can also be arranged on the first surface 111 of the upper shell of the housing, the second surface of the lower shell, or other positions that are convenient for the user to contact.

[0035] See also Figures 2 to 5 , a large resistor 402 is provided in the accommodating space 101. A large resistor is also often referred to as a large resistance resistor, a high resistance resistor, etc. The large resistor in the embodiment of the present application mainly refers to a resistor whose resistance value reaches above the kilo-ohm level. Exemplarily, the resistance value of the large resistor can reach the megohm level or higher, so that the current passing through the large resistor during operation of the air disinfection device does not exceed the micro-ampere level, so as to meet higher requirements of product standards, such as medical electrical equipment standards. It is understandable that the large resistor in the embodiment of the present application may refer to a single resistor, or it may be a component composed of multiple resistors and other possible electronic components, and the present application is not limited to this, as long as its resistance value can reach at least above the kilo-ohm level.

[0036] One end of large resistor 402 is electrically connected to metal strip 401, and the other end is grounded. In this way, a path is formed from metal strip, large resistor to ground terminal, for ease of distinction, referred to as first path in the embodiment of the present application. In some implementations, digital ground can be provided on the circuit board (such as main control board) in the air disinfection equipment, and the other end of large resistor can be directly or indirectly connected with the digital ground. Of course, in other implementations, the other end of large resistor can also be connected with signal ground etc.

[0037] A main control unit is also provided in the accommodation space 101. A control unit generally refers to a unit that can issue various control instructions to control the operation of various components connected thereto to realize certain specific functions. In the scheme of the present application, the control unit is used as the main controller of the air disinfection device, and is therefore referred to as the main control unit. The main control unit can be implemented using existing hardware and known computer programs. Of course, in some cases, the main control unit can also be implemented using other possible methods, such as improved hardware and improved methods. Exemplarily, a microcontroller unit MCU or the like can be used as the main control unit of the air disinfection device.

[0038] Optionally, the main control unit, the large resistor, etc. can be arranged on the main control board, and the connection line between the large resistor and the metal strip, and the connection line between the large resistor and the main control unit can also be arranged on the main control board. Figures 2 to 5 , the metal strip 401 may have an ear 4011, a through hole 211 corresponding to the ear 4011 is provided on the first area 210 of the main control board, and a copper clad layer (for the sake of distinction, it is referred to as the first copper clad layer in the embodiment of the present application, not shown in the figure) is provided in the through hole 211, and the conductive fastener 801 is passed through the ear 4011 and the through hole 211 in sequence, and connected to the housing 100, so as to fix the metal strip 401 and the main control board 200 on the housing 100. In this way, when these components are installed, the metal strip is electrically connected to the main control board through the conductive fastener and the first copper clad layer, thereby forming the aforementioned first path. Compared with the previously designed method of forming the first path together through elastic members, connectors, etc., the structure of this method is simpler, the assembly complexity is relatively low, and the number of connection nodes in the entire first path is relatively small, so that the electrical characteristics of the device are relatively reliable and the cost is relatively low.

[0039] The ion generating component is mainly used to generate and release electrons. The life span of electrons is extremely short (nanosecond level), and they cannot exist in the air for a long time. Moreover, their affinity to oxygen is much greater than that of other gases in the air such as N2, and the CO2 content in the air is much lower than that of O2. Therefore, most of the electrons generated by ionization are captured by oxygen to form negative oxygen ions, which are transported to the ambient space. The ion generating component in this embodiment can adopt an existing ion generator, or other possible structures can be adopted. It can be understood that the ion generating component is usually directly or indirectly grounded.

[0040] The ion generating component can be electrically connected to the main control unit, and the main control unit can output a control signal to it to control it to generate and release electrons.

[0041] In some possible implementations, see Figure 3 and Figure 1, an opening is provided on the first surface 111 of the housing 100 to form a mounting groove (hereinafter referred to as the first mounting groove 104 for easy distinction). The ion generating component 300 may include a carbon brush 301, which is installed in the first mounting groove 104 through a carbon brush plate 302, with its bottom connected to the carbon brush plate 302 and its top facing the environment outside the housing. The ion generating component 300 can raise the low voltage to obtain the required DC negative high voltage, and negative corona discharge occurs under the action of the DC negative high voltage, and the air is continuously ionized to form a large number of positive and negative ion pairs. The positive ions move to the bottom of the carbon brush due to the action of the negative high voltage and are finally neutralized, while a large number of electrons are quickly released into the air through the top of the carbon brush.

[0042] The air disinfection device can work in an open mode and a closed mode. These two working modes can be realized correspondingly when the conductive medium in the environment such as the user does not contact the metal strip and contacts the metal strip. When in an open working mode, a large number of electrons are released into the air through the top of the carbon brush and captured by oxygen to form negative oxygen ions. The negative oxygen ions are repelled away from the top of the carbon brush by the negative high-voltage electric field, thereby forming a negative ion wind. This open structure uses the carbon brush as the negative electrode and the entire space where the air disinfection device is located (such as the earth, desktop, etc. in the environment) as the positive electrode, so that a high-voltage electrostatic field will be formed between the positive and negative electrodes, so that the entire space will be filled with an electrostatic field, which will greatly improve the effect of the diffusion of negative oxygen ions to the surrounding space, has good diffusivity and high ion concentration, and is suitable for providing good disinfection capabilities for indoor spaces. When the user's body parts are in contact with the metal strip, for example, when the user holds the air disinfection device, the air disinfection device is in a closed working mode. Under the action of negative high voltage, the top of the carbon brush also quickly releases electrons into the air and forms negative oxygen ions. The difference is that since the user's body parts are in contact with the metal strip, the metal strip is grounded through a large resistor. At this time, the user's body is at a high potential relative to the carbon brush (negative high voltage), forming a closed electrode between the carbon brush and the human body, forming a strong electric field, so that the negative oxygen ions near the carbon brush are transported more to the direction of the user's area (such as the area where the head and face are located) under the action of the electric field, forming a directional cold spray negative ion wind facing the user, which can locally increase the concentration of negative oxygen ions in the area where the human body is located and improve the local disinfection effect. At the same time, since the cold spray negative ion wind blows towards the human body in a directional manner, it can also improve the human body's ability to inhale negative oxygen ions through the respiratory tract, thereby enhancing cardiovascular and cerebrovascular functions, etc., and improving human body functions. In addition, due to the presence of a large resistor, the field strength between the carbon brush and the human body will not be too high, so too much ozone will not be generated in a closed working mode, which can effectively avoid ozone exceeding the standard.

[0043] During the closed operation of the air disinfection device, the voltage of the section from the metal strip to the large resistor on the first path is relatively high, higher than that of the section from the large resistor to the ground terminal. For ease of description, in the embodiment of the present application, the section from the metal strip to the large resistor in the first path is referred to as the first section, and the section from the large resistor to the ground terminal is referred to as the second section. It should be noted that the aforementioned first section includes the metal strip and the large resistor, and the second section does not include the large resistor.

[0044] See also Figure 2 and Figure 3 The baffle 140 is disposed in the accommodation space 101 to isolate the first section from other electronic components in the accommodation space 101, thereby increasing the electrical gap between these electronic components on the first section and other electronic components, exceeding a preset safety value.

[0045] The other electronic components in the embodiment of the present application mainly refer to other components except the electronic components in the first section, such as capacitors, resistors, chips, etc. on the main control board, or Figure 4 Other electronic components 250 on the main control board shown, or batteries in the accommodation space, etc.

[0046] Electrical clearance generally refers to the shortest spatial distance measured between two conductive parts or between a conductive part and the protective interface of the equipment. The preset safety value can be the shortest distance that can be insulated through air while ensuring stable and safe electrical performance, or any value greater than the shortest distance. For example, it can be 2 cm.

[0047] During the closed operation of the equipment, since the equipment carries a high voltage charge, if the metal strips on the first section are not well isolated from other electronic components inside the equipment, high voltage discharge is likely to occur between the metal strips and other electronic components, especially those with a small electrical gap, and these components are likely to be damaged. Moreover, the equipment is also prone to produce ozone during high voltage discharge. Adding a barrier can effectively avoid the aforementioned high voltage discharge. On the one hand, it can effectively prevent the breakdown of other electronic components, thereby improving the electrical reliability of the equipment. On the other hand, it can further avoid the generation of excessive ozone, which affects the health of users.

[0048] In addition, the barrier design in the embodiments of the present application is particularly suitable for application in portable devices, such as handheld, wearable, etc. Handheld devices mainly refer to devices that can be held by the user and easily carried between places of use. The device can be held by the user in some cases, and can also be placed, temporarily fixed, etc. in other cases, and the present application does not limit this. Wearable devices mainly refer to portable devices that can be worn by users, such as those that can be hung around the neck with a lanyard, worn on the wrist or arm, etc. Such devices have a small overall volume, and the corresponding accommodation space in the shell is also small, which places higher requirements on product design, requiring the design of each component inside the device to be more compact, and at the same time requiring the electrical clearance to meet safety requirements. The use of the aforementioned barrier design provides a basis for the compact design of each component inside the device.

[0049] The barrier 140 may have a variety of different configurations and specific structures, as long as it can ensure that the electrical clearance requirement is met.

[0050] See also Figure 4 In some implementations, if the main control unit, the large resistor 402, the main connection line between the large resistor and the metal strip, etc. are arranged on the main control board, a separation groove 230 can be opened on the main control board 200, so that part or all of the baffle 140 passes through the separation groove 230, so that it is higher than the main control board 200 by a certain height, thereby increasing the electrical gap between the electronic components on both sides of the baffle 140. The opening of the separation groove 230 divides the main control board 200 into at least two areas, and the electronic components other than the metal strip on the first section can be arranged in one of the areas (for the convenience of distinction, it is called the first area 210 in the embodiment of the present application), and the aforementioned other electronic components can be arranged in another area (for the convenience of distinction, it is called the second area 220 in the embodiment of the present application).

[0051] The height difference ΔH between the top height of the baffle 140 and the height of the main control board 200 can be determined according to a preset safety value, which is higher than 1 / 2 of the preset safety value. For example, if the preset safety value is ≥ 2 cm, then ΔH> 1 cm.

[0052] It is understandable that in some implementations, the air disinfection device is provided with a plurality of metal strips, which are located in different positions. To facilitate wiring, first passages may be constructed for each of them, and accordingly, a plurality of partitions may need to be used. Figure 5 , metal strips 401 are provided on both sides of the air disinfection device, and the two regions of the main control board 200 close to the metal strips 401 are respectively constructed with first passages, and are also respectively provided with two baffles 140 for electrical isolation. The structures of the two baffles can be the same or different, and this application does not limit this.

[0053] Optionally, the baffle may be an independent component that can be installed in the housing, or may be a structure integrated with the housing. Figure 6 and Figure 3 When the housing includes an upper shell 110 and a lower shell 120, the baffle 140 can be integrally formed with the upper shell 110, thereby simplifying the assembly process and improving production efficiency.

[0054] Optionally, the air disinfection device may further include a touch sensing circuit, which is electrically connected to the main control unit and is used to sense whether a biological being touches the metal strip, and input the sensed signal (hereinafter referred to as the second signal for ease of distinction) to the main control unit. For example, when the user touches the metal strip, the touch sensing circuit outputs a high level to the main control unit, and when the user does not touch the metal strip, the touch sensing circuit outputs a low level to the main control unit.

[0055] The touch sensing circuit may adopt an existing circuit or other possible implementation methods. For example, see Figure 4 and Figure 5 , the touch sensing circuit may include a second copper clad layer 221 and a second sampling circuit (not shown in the figure) located in the accommodating space. The second copper clad layer 221 is arranged corresponding to the metal strip 401, and the two are equivalent to forming a capacitor. The second copper clad layer is electrically connected to the second sampling circuit, and the second sampling circuit is electrically connected to the main control unit to transmit the sampled signal. For example, when the user touches the metal strip, the capacitance value of the capacitor is changed due to the high potential of the user's body, so that the signal sampled by the second sampling circuit changes, and the main control unit can judge that the user has touched the metal strip at this time, and then output some control signals to other possible components, such as ion generating components, visualization components, etc. It can be understood that the second sampling circuit can adopt an existing sampling circuit.

[0056] Alternatively, see Figure 5 , the aforementioned second copper clad layer 221 and the second sampling circuit can be integrated on the second area of ​​the main control board. In this way, due to the existence of the barrier 140, the electrical gap between the second copper clad layer 221 and the metal strip 401 must be greater than the preset safety value. Therefore, in addition to preventing damage to the electronic components inside the device, the barrier 140 can also prevent the electric charge from affecting the second copper clad layer in the touch sensing circuit when the user touches the metal strip, thereby preventing the touch sensing circuit from mis-sensing.

[0057] Optionally, the side of the barrier close to the second copper clad layer extends away from the metal strip to form a bent portion. The bent portion can further isolate the edge of the second copper clad layer from the metal strip, thereby preventing high voltage discharge and false induction from occurring in the edge of the second copper clad layer due to the small electrical gap between the metal strip and the edge of the second copper clad layer. Figure 2 , Figure 4 and Figure 5 Taking the left baffle 140 as an example, the upper side of the left baffle 140, that is, the side close to the second copper clad layer 221, can extend toward the inside of the device, that is, away from the metal strip 401, to form a right-angled bend 141. The bend 141 wraps around part of the edge of the second copper clad layer 221 on the main control board 200, thereby better isolating it from the metal strip 401. In some implementations, a bend groove 240 adapted to the cross-section of the bend 141 can also be provided on the main control board 200, for allowing the bend 141 to partially pass through the main control board 200. It can be understood that when the shape or position of the second copper clad layer changes, the shape of the bend can also change accordingly, and this application is not limited to this. The length of the bend can be set to be more than 1 / 2 of the preset safety value, for example, more than 1 cm.

[0058] In some implementations, see Figure 2 The air disinfection device may also include a battery 701, such as a lithium battery, etc., for providing electrical energy for the entire device. The periphery of the battery 701 may be covered with a second protective cover 702, which is used to isolate the local surface of the battery 701 from some components in the accommodating space (such as chips, resistors, etc. on the main control board). Optionally, the second protective cover 702 abuts against one end of the aforementioned bent portion 141 to play a positioning role. In this way, the bent portion can also be used as a positioning component when installing the battery and / or protective cover, reducing the difficulty of assembly and improving assembly efficiency.

[0059] It should be understood that the air disinfection equipment in the embodiment of the present application may also include other possible components, parts, components, etc., such as a first protective cover 303 for protecting the carbon brush plate 302, a mechanical or electronic switch / operating part (such as a button assembly 600), a sensor, etc.

[0060] It should also be understood that in the description of the present application, the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are generally based on the directions or positional relationships shown in the drawings. These directions and positional relationships are for the convenience of description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present application.

[0061] It should also be understood that in the description of this application, unless otherwise specifically defined, the terms "install", "connect", "assemble", "fix" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, they can understand the specific meanings of the above terms in this application according to specific circumstances.

[0062] It should also be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. Unless otherwise clearly and specifically defined, "plurality" means two or more.

[0063] The same and similar parts between the various embodiments in this specification can be referred to each other. The different implementation methods in the above embodiments can be combined with each other as long as they are not contradictory. The above implementation methods do not constitute a limitation on the protection scope of the utility model.

Claims

1. An air disinfection device, characterized in that: It includes a housing, a main control unit, an ion generating component and a baffle, wherein: The housing is used to form a storage space, a metal strip is provided on the outer surface of the housing, and at least a part of the metal strip is exposed to the environment and can be touched by a user; a large resistor is provided in the storage space, one end of the large resistor is electrically connected to the metal strip, and the other end of the large resistor is grounded to form a first path; The main control unit is arranged in the accommodation space; The ion generating component is arranged in the accommodation space, electrically connected to the main control unit, and is used to generate and release electrons into the environment; The baffle is arranged in the accommodation space, so that the electrical gap formed between the first section formed by the metal strip to the large resistor in the first passage and other electronic components in the accommodation space exceeds a preset safety value.

2. The device according to claim 1, characterized in that The preset safety value is not less than 2 cm.

3. The device according to any one of claims 1 to 2, characterized in that The main control unit is integrated on the main control board, and a separation groove is provided on the main control board to divide the main control board into a first area and a second area; the electronic components on the first section except the metal strip are arranged on the first area; the other electronic components are arranged on the second area; at least a part of the barrier passes through the separation groove to increase the electrical gap between the first section and the other electronic components.

4. The device according to claim 3, characterized in that A height difference ΔH between the top height of the baffle and the height of the main control board is greater than half of the preset safety value.

5. The device according to claim 3, characterized in that It also includes a touch sensing circuit, which is electrically connected to the main control unit and is used to sense whether a creature touches the metal strip and input the sensed second signal to the main control unit.

6. The device according to claim 5, characterized in that The touch sensing circuit includes a second copper clad layer and a second sampling circuit arranged on the second area, the second copper clad layer is arranged corresponding to the metal strip and is electrically connected to the second sampling circuit, and the second sampling circuit is electrically connected to the main control unit.

7. The device according to claim 6, characterized in that A side of the barrier close to the second copper cladding layer extends in a direction away from the metal strip to form a bending portion.

8. The device according to claim 7, characterized in that It also includes a battery and a second protective cover, wherein the second protective cover is partially disposed on the periphery of the battery, and the second protective cover abuts against one end of the bent portion.

9. The device according to claim 3, characterized in that The metal strip has an ear, a through hole corresponding to the ear is opened on the first area of ​​the main control board, a first copper cladding layer is arranged in the through hole, and the metal strip and the main control board are connected to the shell through conductive fasteners that pass through the ear and the through hole in sequence.

10. The device according to claim 1, characterized in that The device is a handheld device or a wearable device.

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