General negative ion module

Abstract

The utility model discloses a general negative ion module, including mounting seat and negative ion generator, mounting seat has the installation cavity and with the installation cavity communication's outlet slot, the outer wall surface of mounting seat is equipped with first installation site and second installation site, and first installation site and second installation site set up at the different position on the outer wall surface of mounting seat to adapt to different installation structure, negative ion generator installs in the installation cavity, and the emission end of negative ion generator stretches out from the installation cavity, and the power cord of negative ion generator stretches out from the outlet slot, the utility model discloses a general negative ion module has realized the target of the same negative ion module adaptation different model cyclone lower cover mounting structure, avoided the problem of developing negative ion module alone for each installation structure.

Description

Technical Field

[0001] This utility model relates to the field of negative ion module technology, and in particular to a universal negative ion module. Background Technology

[0002] Existing air curtain devices with purification functions have negative ion emitters installed inside the air duct of the cyclone lower cover. These emitters generate negative ions within the duct, which are then blown out of the duct along with the airflow. However, the mounting structures for the negative ion modules differ across different models of cyclone lower covers, making it impossible for the same negative ion module to be compatible with different models. This incompatibility forces manufacturers to produce dedicated negative ion modules for different cyclone lower cover models, increasing the complexity of mold development and production management, and significantly raising production costs. Utility Model Content

[0003] The main objective of this invention is to propose a universal negative ion module, which aims to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the universal negative ion module proposed in this utility model includes a mounting base and a negative ion generator; the mounting base has a mounting cavity and a cable outlet groove communicating with the mounting cavity; a first mounting position and a second mounting position are provided on the outer wall of the mounting base, and the first mounting position and the second mounting position are set at different positions on the outer wall of the mounting base to adapt to different mounting structures; the negative ion generator is installed in the mounting cavity, the emitting end of the negative ion generator extends out of the mounting cavity, and the power cord of the negative ion generator extends out of the cable outlet groove.

[0005] According to one embodiment of the present invention, the outer wall surface of the mounting base is provided with a slot and a slide groove, the slot and the slide groove are arranged at different positions on the outer wall surface of the mounting base, the slot forms a first mounting position, and the slide groove forms a second mounting position.

[0006] According to one embodiment of the present invention, a third mounting position is further provided on the outer wall surface of the mounting base. The third mounting position is a universal mounting position and is used in conjunction with the first mounting position or the second mounting position.

[0007] According to one embodiment of the present invention, the third mounting position is located in front of the first mounting position and the second mounting position in the front-back direction.

[0008] According to one embodiment of the present invention, a limiting rib is provided on the inner wall of the mounting cavity to prevent the power cord of the negative ion generator from leaving the mounting cavity.

[0009] According to one embodiment of the present invention, the side of the limiting rib facing the top of the mounting cavity forms a guide slope, which is used to guide the power cord of the negative ion generator toward the mounting cavity.

[0010] According to one embodiment of the present invention, two opposing inner walls of the mounting cavity are respectively provided with opposing fixing parts, and the distance between the two fixing parts gradually increases from the end near the top of the mounting cavity to the end near the bottom of the mounting cavity.

[0011] According to one embodiment of the present invention, the mounting cavity includes a horizontal portion and a vertical portion. The negative ion generator includes a negative ion emitting head and a power cord connected to each other. The negative ion emitting head extends out of the mounting cavity through the vertical portion, and the power cord is arranged along the horizontal portion and extends out through the cable outlet groove.

[0012] According to one embodiment of the present invention, the mounting base is provided with a positioning wall at the outlet of the vertical portion, and the positioning wall surrounds a portion of the negative ion emitting head.

[0013] According to one embodiment of the present invention, the universal negative ion module further includes a top cover, which covers the top opening of the mounting cavity.

[0014] This utility model's universal negative ion module achieves the goal of adapting the same negative ion module to different models of cyclone lower cover mounting structures. By setting two different mounting positions on the outer wall of the mounting base, a single negative ion module can flexibly match different installation requirements, avoiding the problem of developing a separate negative ion module for each mounting structure. This design significantly reduces production costs and simplifies mold development, production line switching, and parts inventory management. Simultaneously, the modular design improves product versatility and interchangeability, simplifies the production process, and increases production efficiency. Furthermore, the universal negative ion module design facilitates after-sales maintenance, reduces the difficulty of spare parts replacement, and contributes to improving the consistency of the user experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is an exploded view of the structure of the universal negative ion module of this utility model;

[0017] Figure 2 This is a schematic diagram of the mounting base in this utility model;

[0018] Figure 3 This is a schematic diagram of the mounting base from another direction in this utility model;

[0019] Figure 4This is a cross-sectional view of the general-purpose negative ion module of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the air curtain device of this utility model;

[0021] Figure 6 This is a schematic diagram of the installation of the universal negative ion module on the lower cover of the cyclone in this utility model;

[0022] Figure 7 for Figure 6 A magnified view of a section at point A in the middle;

[0023] Figure 8 This is a schematic diagram of the structure of one embodiment of the cyclone lower cover of this utility model;

[0024] Figure 9 for Figure 8 A magnified view of a section at point B in the middle;

[0025] Figure 10 This is a schematic diagram of the installation of the universal negative ion module in this utility model on another type of cyclone lower cover;

[0026] Figure 11 for Figure 10 A magnified view of a section at point C;

[0027] Figure 12 This is a schematic diagram of another embodiment of the cyclone lower cover of this utility model;

[0028] Figure 13 for Figure 12 A magnified view of a section at point D.

[0029] Explanation of icon numbers:

[0030] 20 Universal negative ion module 21 Mounting base 22 negative ion generator 211 Mounting cavity 212 Cable tray 213 First installation position 214 Second installation position 215 Third installation position 23 Limiting reinforcement 231 Guide slope 24 Fixed wire section 221 negative ion emitter 222 power cord 25 Positioning wall 10 Cyclone lower cover 11 Air duct 30 Air curtain fan 13 Mounting slot 14 First fixed protrusion 15 Connecting ribs 16 Second fixed protrusion 27 Top cover

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] This utility model proposes a universal negative ion module 20.

[0036] In the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the universal negative ion module 20 includes a mounting base 21 and a negative ion generator 22; the mounting base 21 has a mounting cavity 211 and a cable outlet groove 212 communicating with the mounting cavity 211; a first mounting position 213 and a second mounting position 214 are provided on the outer wall of the mounting base 21, and the first mounting position 213 and the second mounting position 214 are set at different positions on the outer wall of the mounting base 21 to adapt to different mounting structures; the negative ion generator 22 is installed in the mounting cavity 211, the emitting end of the negative ion generator 22 extends out from the mounting cavity 211, and the power cord 222 of the negative ion generator 22 extends out from the cable outlet groove 212.

[0037] In this embodiment, the mounting base 21 refers to the support structure for supporting the negative ion generator 22. Specifically, it can be manufactured using injection molding, forming a housing with a mounting cavity 211 and a cable outlet groove 212. The mounting cavity 211 is used to fix the main body of the negative ion generator 22, and the cable outlet groove 212 is used to regulate the routing of the power cord 222 of the negative ion generator 22. The first mounting position 213 and the second mounting position 214 refer to two physical connection points located on the outer surface of the mounting base 21. Specifically, they can be implemented using slots, grooves, or threaded holes. By setting two mounting positions in different spatial locations, the mounting base 21 can be compatible with the mounting structures of different models of devices. The connection between the mounting cavity 211 and the cable outlet groove 212 means that they form a continuous spatial channel. Specifically, this can be achieved by reserving a cable channel in the mold design to ensure that the power cord 222 maintains a fixed path when extending from inside the mounting cavity 211 to the outside. The emitting end of the negative ion generator 22 extends from the mounting cavity 211 to release negative ions, while the power cord 222 extends from the cable outlet groove 212 to connect to an external power source. The transmitter extending from the mounting cavity 211 means that the ionization component of the negative ion generator 22 is directly exposed to the outside of the mounting base 21. Specifically, this can be achieved by opening a through hole at the bottom of the mounting cavity 211, so that the release of negative ions is not blocked by the mounting base 21.

[0038] By setting a first mounting position 213 and a second mounting position 214 with different spatial positions on the outer wall of a single mounting base 21, the same negative ion module can be adapted to various device structures by selecting different mounting positions, eliminating the problem of negative ion modules not being universal due to differences in installation structure, thereby reducing the production cost for manufacturers to develop corresponding negative ion modules for different devices separately.

[0039] During installation, the first mounting position 213 or the second mounting position 214 can be selected for fixation depending on the mounting structure of the cyclone lower cover 10. The staggered layout of the first mounting position 213 and the second mounting position 214 allows a single negative ion module to match the differentiated mounting structures of different models of cyclone lower covers 10. The spatial distribution design of different mounting positions allows the negative ion module to be adapted for installation in different devices simply by selecting the corresponding mounting position, while maintaining the main structure.

[0040] like Figures 5 to 13 As shown, this utility model proposes an air curtain device, which includes a cyclone lower cover 10, an air curtain fan 30, and a universal negative ion module 20 as described above. The cyclone lower cover 10 is provided with an air duct 11. The negative ion module is installed on the cyclone lower cover 10, with one part of the negative ion module located inside the air duct 11 and the other part located outside the air duct 11. The air curtain fan 30 is installed on the cyclone lower cover 10, with the air outlet side of the air curtain fan 30 facing the air duct 11.

[0041] The cyclone lower cover 10 has two models, including a first cyclone lower cover and a second cyclone lower cover. The first cyclone lower cover has a first mounting structure located outside the air duct 11, and the second cyclone lower cover has a second mounting structure located outside the air duct 11. When the universal negative ion module 20 is installed on the first cyclone lower cover, the first mounting position 213 is adapted to the first mounting structure; when the universal negative ion module 20 is installed on the second cyclone lower cover, the second mounting position 214 is adapted to the second mounting structure.

[0042] Both the first cyclone lower cover and the second cyclone lower cover are provided with mounting slots 13 that are adjacent to and interconnected with the air duct 11. The first mounting structure and the second mounting structure are respectively located in the corresponding mounting slots 13. When the negative ion module is installed on the cyclone lower cover 10, the part of the negative ion module located outside the air duct 11 is installed in the mounting slot 13.

[0043] Through the above solution, this application achieves the goal of adapting the same negative ion module to different models of cyclone lower cover 10 mounting structures. By setting two different mounting positions on the outer wall of the mounting base 21, a single negative ion module can flexibly match different installation requirements, avoiding the problem of developing a separate negative ion module for each mounting structure. This design greatly reduces production costs and the complexity of mold development, production line switching, and parts inventory management. At the same time, the modular design improves the product's versatility and interchangeability, simplifies the production process, and improves production efficiency. In addition, the design of the universal negative ion module 20 facilitates after-sales maintenance, reduces the difficulty of spare parts replacement, and helps improve the consistency of user experience.

[0044] In the universal negative ion module 20 of this utility model, such as Figure 1 and Figure 2 As shown, the outer wall surface of the mounting base 21 is provided with a slot and a slide groove. The slot and the slide groove are set at different positions on the outer wall surface of the mounting base 21. The slot forms a first mounting position 213 and the slide groove forms a second mounting position 214.

[0045] The slots and slides are designed to be mutually independent; for example, the slots are located in the middle area of ​​the outer wall of the mounting base 21, and the slides are located in the rear area. The positions of the slots and slides are spatially offset from the cable outlet slot 212 of the mounting cavity 211, preventing the power cable 222 arrangement from interfering with the installation operation. The slots can be used for snap-fit ​​installation, while the slides can be used for sliding installation.

[0046] By providing a slot and a groove on the outer wall of the mounting base 21, forming a first mounting position 213 and a second mounting position 214 respectively, two specific adaptation methods are provided for different installation structures. The slot design allows for fixing of the installation structure through a snap-fit ​​method, while the groove design supports sliding installation. The different positions of the two further expand the adaptation range of the mounting base 21. This design clarifies the physical form of the mounting position, enhances the flexibility and reliability of installation, and thus solves the adaptation problem of the universal negative ion module 20 in different installation scenarios. Therefore, the solution of this application achieves fast and reliable installation adaptation, improving the practicality and versatility of the universal negative ion module 20.

[0047] In conjunction with the above-described embodiment of the first cyclone lower cover, such as Figures 7 to 9 As shown, the mounting groove 13 of the first cyclone lower cover is provided with two opposing first fixing protrusions 14. When the negative ion module is installed on the first cyclone lower cover, the negative ion module is located between the two first fixing protrusions 14 in the mounting groove 13. The opposite side walls of the mounting base 21 are provided with slots. The two first fixing protrusions 14 are respectively engaged with the two slots to realize the fixed installation of the negative ion module on the first cyclone lower cover.

[0048] In conjunction with the above-described embodiment of the second cyclone lower cover, such as Figures 11 to 13 As shown, the mounting groove 13 of the second cyclone lower cover has a connecting rib 15 protruding from its groove wall. The connecting rib 15 extends in a U-shape. The shape of the sliding groove is adapted to the connecting rib 15. When the negative ion module is installed in the mounting groove 13 from top to bottom, the connecting rib 15 cooperates with the sliding groove to achieve the fixed installation of the negative ion module on the second cyclone lower cover.

[0049] In the universal negative ion module 20 of this utility model, such as Figure 1 and Figure 2 As shown, a third mounting position 215 is also provided on the outer wall of the mounting base 21. The third mounting position 215 is a universal mounting position and is used in conjunction with the first mounting position 213 or the second mounting position 214.

[0050] The third mounting position 215 can be set as a snap-fit ​​position. During the installation of the negative ion module, the first mounting position 213 or the second mounting position 214 undertakes the basic positioning function, while the third mounting position 215 can increase the fixed connection position between the mounting base 21 and the cyclone lower cover 10, so as to improve the installation stability of the negative ion module on two different models of cyclone lower covers 10.

[0051] The third mounting position 215 serves as a universal mounting position, which can be flexibly combined with the first mounting position 213 or the second mounting position 214 to meet complex installation needs. This design enhances the connection strength between the negative ion module and the external structure, expanding the adaptability of a single negative ion module to different installation scenarios. Through optimized spatial layout between mounting positions, a balance of mechanical distribution is achieved during installation, avoiding stability issues caused by stress concentration at a single mounting point. Furthermore, the standardized design of the universal mounting position improves the versatility of the negative ion module on different models of cyclone lower covers 10, reducing production costs.

[0052] Combining the above embodiments of the first cyclone lower cover and the second cyclone lower cover, such as Figures 7 to 13 As shown, both the first and second cyclone lower covers have two second fixing protrusions 16 in their mounting grooves 13. The mounting base 21 is positioned between these two second fixing protrusions 16, regardless of whether it is installed on the first or second cyclone lower cover. The opposite side walls of the mounting base 21 each have a third mounting position 215. The two second fixing protrusions 16 are respectively engaged and fixed to the two third mounting positions 215 to improve the installation stability of the negative ion module on both types of cyclone lower covers 10.

[0053] In the universal negative ion module 20 of this utility model, such as Figure 1 and Figure 2 As shown, the third mounting position 215 is located in the front of the first mounting position 213 and the second mounting position 214 in the front-back direction. The outer wall surface of the mounting base 21 is divided into a front region and a rear region. The third mounting position 215 is located in the front region, while the first mounting position 213 and the second mounting position 214 are distributed at different positions in the rear region. When different mounting structures need to be adapted, the third mounting position 215 can be used in combination with the rear first mounting position 213 or the second mounting position 214.

[0054] By placing the third mounting position 215 in front of the first mounting position 213 and the second mounting position 214, a clear spatial layout is formed, improving the stability of multi-mounting position collaborative use. When different mounting structures are required for fixation, the corresponding mounting position combination can be selected according to the needs, avoiding installation difficulties caused by position conflicts. This design not only improves the compatibility of the universal negative ion module 20, but also enhances the flexibility and stability of installation, enabling the module to adapt to a wider range of installation environments and requirements.

[0055] In the universal negative ion module 20 of this utility model, such as Figure 3 As shown, the inner wall of the mounting cavity 211 is provided with a limiting rib 23, which is used to prevent the power cord 222 of the negative ion generator 22 from leaving the mounting cavity 211.

[0056] The top of the mounting base 21 has an opening communicating with the mounting cavity 211, allowing the negative ion generator 22 to be inserted into the mounting cavity 211. Two limiting ribs 23 are located adjacent to this opening, positioned opposite each other. The limiting ribs 23 can be integrally formed with the inner wall of the mounting cavity 211. When external tension is applied to the power cord 222, the limiting ribs 23 mechanically prevent the power cord 222 from moving towards the opening, thus preventing it from detaching from the mounting cavity 211.

[0057] In the universal negative ion module 20 of this utility model, such as Figure 3 As shown, the side of the limiting rib 23 facing the top of the mounting cavity 211 forms a guide slope 231, which guides the power cord 222 of the negative ion generator 22 into the mounting cavity 211. The guide slope 231 is configured to form a continuously transitioning inclined surface structure with the top of the mounting cavity 211, and its inclination angle can be in the range of 15° to 45°, for example, 30°. The guide slope 231 extends along the length of the limiting rib 23 and forms a funnel-shaped opening with the inner wall of the mounting cavity 211.

[0058] During installation, when the power cord 222 is pushed into the mounting cavity 211, the guide ramp 231 guides the power cord 222 to slide along a predetermined path via its inclined surface. The power cord 222 first contacts the upper area of ​​the ramp, and under manual force, slides down the guide ramp 231 to below the limiting rib 23. This reduces the assembly difficulty of inserting the negative ion generator 22 into the mounting cavity 211 and improves assembly efficiency.

[0059] In the universal negative ion module 20 of this utility model, such as Figure 3 As shown, the two opposing inner walls of the mounting cavity 211 are respectively provided with oppositely arranged fixing parts 24, and the distance between the two fixing parts 24 gradually increases from the end near the top of the mounting cavity 211 to the end near the bottom of the mounting cavity 211.

[0060] The wire securing portion 24 is disposed in the middle region of the two opposing inner walls of the mounting cavity 211. The wire securing portion 24 and the cable outlet groove 212 are aligned on the same axis, allowing the power cable 222 to extend linearly along the cable outlet groove 212 after clamping. The wire securing portion 24 can be a protruding structure integrally formed with the inner wall of the mounting cavity 211. The gradually increasing spacing is achieved by the inclined surface of the side wall of the wire securing portion 24, with an inclination angle of 15-30 degrees. The cross-section of the wire securing portion 24 can be triangular, trapezoidal, or arc-shaped, etc. The length of the wire securing portion 24 can be adapted to the depth of the mounting cavity 211. The distance between the two wire securing portions 24 at the top of the mounting cavity 211 can be slightly smaller than the diameter of the power cable 222, while the distance at the bottom can be slightly larger than the diameter of the power cable 222.

[0061] During installation, the power cord 222 is initially pressed into the narrow area at the top of the cable fixing part 24. As the power cord 222 moves downwards, the gradually increasing spacing allows the cord to naturally slide into the wider area at the bottom. The cable fixing part 24 forms a clamping space through its relative arrangement, physically limiting the power cord 222 and preventing it from vibrating within the mounting cavity 211, which could lead to poor contact with the negative ion emitter 221. The gradually increasing spacing allows the power cord 222 to naturally slide into the wider area at the bottom, facilitating installation and creating a stable clamping effect at the bottom. The narrower spacing at the top provides initial guidance and pre-fixation for the power cord 222, while the gradually widening spacing at the bottom accommodates power cords 222 of different diameters, ensuring even distribution of clamping force and avoiding localized stress concentration that could damage the cord. This structure, through its gradual clamping design, balances ease of installation with reliable fixation, improving the overall stability of the negative ion module.

[0062] In the universal negative ion module 20 of this utility model, such as Figure 4 As shown, the mounting cavity 211 includes a horizontal part and a vertical part. The negative ion generator 22 includes a negative ion emitting head 221 and a power cord 222 connected to each other. The negative ion emitting head 221 extends out of the mounting cavity 211 through the vertical part, and the power cord 222 is arranged along the horizontal part and extends out through the cable outlet groove 212.

[0063] The horizontal portion can be configured as a flat channel extending along the length of the mounting base 21 to accommodate the power cord 222; the vertical portion can be configured as a cylindrical channel perpendicular to the horizontal portion to guide the negative ion emitter 221 to extend vertically. The opening direction of the cable outlet groove 212 is consistent with the extension direction of the horizontal portion; for example, when the horizontal portion extends in the left-right direction, the opening of the cable outlet groove 212 faces rearward. The negative ion emitter 221 is assembled within the vertical extension section, and its emitting end passes through the bottom through hole of the mounting base 21 along the axial path of the vertical extension section, with the periphery of the emitting end forming a clearance fit with the inner wall of the through hole. The power cord 222 is led out from the bottom of the negative ion emitter 221 and laid along the extension direction of the horizontal portion, passing through the cable outlet groove 212 at the end of the horizontal portion to form a straight cable outlet path.

[0064] The above technical solution effectively avoids axial displacement of the negative ion emitter 221 during assembly, ensuring that the emitter always extends from the mounting cavity 211 in a predetermined vertical direction. Simultaneously, the directional guidance of the horizontal extension section ensures that the power cord 222 maintains a straight extension during its exit, eliminating bending stress caused by spatial path intersections. The horizontally and vertically partitioned cavity structure ensures that the installation and positioning of the negative ion emitter 221 and the layout of the power cord 222 do not interfere with each other, guaranteeing accurate orientation of the negative ion emitter and reducing the risk of insulation damage to the power cord 222 due to bending and friction.

[0065] In the universal negative ion module 20 of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the mounting base 21 is provided with a positioning wall 25 located at the outlet of the vertical part, and the positioning wall 25 surrounds the negative ion emitter 221.

[0066] The positioning wall 25 can be configured as a ring structure or a partially arc-shaped structure, and can be integrally formed with the mounting base 21. The positioning wall 25 is arranged around the vertical outlet, and through its cooperation with the outer wall of the emitter head, it achieves radial limiting, effectively preventing angular deflection of the emitter end of the negative ion generator 22 due to vibration during operation. The positioning wall 25 only surrounds a portion of the negative ion emitter head 221, thus providing sufficient diffusion space for the negative ions generated at the emitter end of the negative ion emitter head 221, allowing the negative ions to diffuse and distribute more fully.

[0067] In the universal negative ion module 20 of this utility model, such as Figure 4 As shown, the universal negative ion module 20 also includes an upper cover 27, which covers the top opening of the mounting cavity 211.

[0068] The mounting base 21 and the top cover 27 can be detachably connected via snap-fit. This split structure allows the mounting base 21 to independently support the negative ion generator 22 before assembling the top cover 27. The mounting base 21 acts as an independent support unit, with its mounting cavity 211 securing the negative ion generator 22 via a bottom support surface and side wall limiting structure. During assembly, the operator first inserts the negative ion generator 22 vertically into the mounting cavity 211 of the mounting base 21. At this time, the power cord 222 can be led out along the preset path of the cable outlet 212. The top cover 27 covers the top opening of the mounting cavity 211 via snap-fit, forming a closed space to protect the internal components. This split structure allows the mounting base 21 to be molded independently, adapting to different models by adjusting the mounting parameters of the outer wall surface, while the top cover 27 maintains a universal design, reducing overall production costs.

[0069] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A universal negative ion module (20), characterized in that, include: Mounting base (21), the mounting base (21) has a mounting cavity (211) and a cable outlet groove (212) communicating with the mounting cavity (211); the outer wall surface of the mounting base (21) is provided with a first mounting position (213) and a second mounting position (214), the first mounting position (213) and the second mounting position (214) are arranged at different positions on the outer wall surface of the mounting base (21) to adapt to different mounting structures; A negative ion generator (22) is installed in the mounting cavity (211). The emitting end (221) of the negative ion generator (22) extends out of the mounting cavity (211), and the power cord (222) of the negative ion generator (22) extends out of the cable outlet (212).

2. The universal negative ion module (20) as described in claim 1, characterized in that, The outer wall surface of the mounting base (21) is provided with a slot and a slide groove. The slot and the slide groove are arranged at different positions on the outer wall surface of the mounting base (21). The slot forms the first mounting position (213), and the slide groove forms the second mounting position (214).

3. The universal negative ion module (20) as described in claim 1, characterized in that, The outer wall surface of the mounting base (21) is also provided with a third mounting position (215), which is a universal mounting position and is used in conjunction with the first mounting position (213) or the second mounting position (214).

4. The universal negative ion module (20) as described in claim 3, characterized in that, The third mounting position (215) is located in front of the first mounting position (213) and the second mounting position (214) in the front-back direction.

5. The universal negative ion module (20) as described in claim 1, characterized in that, The inner wall of the mounting cavity (211) is provided with a limiting rib (23), which is used to prevent the power cord (222) of the negative ion generator (22) from leaving the mounting cavity (211).

6. The universal negative ion module (20) as described in claim 5, characterized in that, The limiting rib (23) forms a guide slope (231) on the side facing the top of the mounting cavity (211), and the guide slope (231) is used to guide the power cord (222) of the negative ion generator (22) into the mounting cavity (211).

7. The universal negative ion module (20) as described in claim 1, characterized in that, The mounting cavity (211) has two opposing inner walls with oppositely arranged fixing parts (24), and the distance between the two fixing parts (24) gradually increases from the end near the top of the mounting cavity (211) to the end near the bottom of the mounting cavity (211).

8. The universal negative ion module (20) as described in claim 1, characterized in that, The mounting cavity (211) includes a horizontal portion and a vertical portion. The negative ion generator (22) includes a negative ion emitter (221) and a power cord (222) connected to each other. The negative ion emitter (221) extends out of the mounting cavity (211) through the vertical portion. The power cord (222) is arranged along the horizontal portion and extends out through the cable outlet groove (212).

9. The universal negative ion module (20) as described in claim 8, characterized in that, The mounting base (21) is provided with a positioning wall (25) located at the outlet of the vertical portion, the positioning wall (25) surrounding a portion of the negative ion emitter (221).

10. The universal negative ion module as described in claim 1, characterized in that, It also includes a top cover (27) which covers the top opening of the mounting cavity (211).

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