Filter cartridge plug-in structure and dehumidifier

Abstract

The utility model relates to dehumidifier technical field, especially a filter core plug -in structure and dehumidifier, including the shell and filter core of dehumidifier, the shell is set up and has the slot, the filter core can be inserted in the slot, the elastic expansion of lock tongue has one end of filter core one end away from its insertion end, the end of two lock tongues away from each other under normal circumstances respectively extends filter core both sides, to form the lock hole plug -in with the inner wall of slot, the adjacent end between two lock tongues is equipped with the unlocking key, and the unlocking key is movably arranged on the filter core, and the end part of lock tongue forms inclined wedge cooperation, and the unlocking key can drive two lock tongues to move to the problem of inconvenient maintenance of the filter core structure of existing dehumidifier is solved.

Description

Technical Field

[0001] This utility model relates to the field of dehumidifier technology, and in particular to a filter cartridge insertion structure and a dehumidifier. Background Technology

[0002] In existing air handling equipment such as dehumidifiers, the filter element, as a core filtration component, needs to be replaced regularly to maintain equipment performance. Currently, the most common filter element fixing methods are clip-on or screw-on fixing. Screw-on fixing is inconvenient to disassemble, while clip-on structures often use clips on both sides of the filter element that fit the dehumidifier shell. However, the clip-on method requires the user to use their fingers to pry open the clips on both sides, which is extremely inconvenient to operate in a narrow space. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a filter cartridge insertion structure and a dehumidifier, which solves the problem of inconvenient maintenance of the filter cartridge structure of existing dehumidifiers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a filter element insertion structure, including a dehumidifier housing and a filter element, wherein a slot is provided on the housing, and the filter element can be inserted into the slot. The filter element has elastically retractable locking tongues on both sides of the end opposite to its insertion end. The ends of the two locking tongues that are normally far apart from each other extend out of the two sides of the filter element to engage with the locking holes formed by the inner wall of the slot. An unlocking key is provided between the adjacent ends of the two locking tongues. The unlocking key is movably disposed on the filter element and forms a wedge engagement with the ends of the locking tongues. Pressing the unlocking key can drive the two locking tongues to move towards each other to disengage from the locking holes.

[0005] Furthermore, the direction of movement of the locking tongue is perpendicular to the installation direction of the filter element on the plane where the outer casing is located.

[0006] By adopting the above technical solution, and setting the movement direction of the locking tongue to be perpendicular to the installation direction of the filter element, an orthogonal mechanical system is formed. This ensures that vibrations or impacts on the filter element in the installation direction will not directly affect the locking state of the locking tongue. This vertical layout effectively utilizes the space on the side of the filter element, so that the locking tongue structure does not increase the overall thickness of the filter element, which is conducive to the miniaturization design of the equipment. At the same time, this direction setting ensures that the locking tongue can smoothly slide over the edge of the lock hole during the insertion of the filter element, and automatically springs into the lock hole under the action of the spring when it reaches the designated position, realizing one-click locking. During disassembly, the vertical movement direction ensures that the locking tongue will not interfere with the movement of the filter element after it leaves the lock hole, ensuring that the filter element can be smoothly removed.

[0007] Furthermore, the latch includes a main body and a plug-in part and a mating part located at both ends of the main body. The plug-in part is plugged into the lock hole to form a plug-in fit, and the mating part is wedge-shaped to the unlock key.

[0008] By adopting the above technical solution, the lock tongue is clearly divided into three parts: the insertion part, the mating part, and the main body. This achieves a professional design of functional zones. The insertion part is specifically responsible for the insertion and fixation with the lock hole, and its shape and material can be optimized for the insertion function. The mating part focuses on the inclined surface transmission with the unlocking button, and the inclined surface angle and contact area can be optimized. The main body is responsible for the connection and force transmission functions. The professional design of each functional zone optimizes the overall performance of the lock tongue. The insertion part can be designed with wear-resistant material, and the main body can focus on structural strength, thereby improving the reliability and service life of the entire insertion structure.

[0009] Furthermore, the filter element has slots on both sides inside the end opposite to its insertion end to accommodate the locking tongue, and the main body and the slots are elastically connected by a first elastic element.

[0010] By adopting the above technical solution, and by creating a slot specifically to accommodate the locking tongue and placing the first elastic element between the slot and the main body of the locking tongue, a fully built-in design of the locking tongue mechanism is achieved. This layout ensures that the locking tongue is completely inside the filter element body during operation, avoiding the risk of foreign objects entering the locking tongue movement mechanism and causing jamming. At the same time, the slot provides a precise guide track for the locking tongue, ensuring that the locking tongue always moves in the predetermined direction without swaying or jamming. The built-in installation of the first elastic element not only saves external space but also plays a protective role, preventing the elastic element from degrading in performance due to external environmental factors (such as dust and moisture). In addition, this design maintains the integrity of the filter element's appearance, making it easy to clean and maintain.

[0011] Furthermore, the main body has a notch inside, and the bottom of the slot has a positioning post extending into the notch. The first elastic element is elastically loaded between the inner wall of the notch and the positioning post.

[0012] By adopting the above technical solution, through the cooperative design of the positioning post and the notch, the positioning post can extend into the notch, and at the same time the first elastic element is located inside the notch. This provides a reliable installation reference for the first elastic element, ensuring that the elastic element will not shift or twist during operation. It also makes the tightness of the assembly of the first elastic element, the positioning post and the main body higher, which helps to optimize the product volume.

[0013] Furthermore, the unlock button is located between two mating parts, the interior of which has a through hole, and the latch has an extension foot inserted into the through hole along its direction of movement. The side of the extension foot has an inclined surface that forms a wedge engagement with the through hole.

[0014] By adopting the above technical solution, the linear motion of the unlocking key is efficiently converted into the lateral motion of the latch by the wedge-shaped fit between the extended foot and the through hole. The extended foot, as a transmission medium, facilitates the use of the inclined surface on it to ensure that the unlocking key gradually pushes the latch to retract during the pressing process. This transmission method has low frictional resistance and high motion conversion efficiency. Furthermore, since the extended foot is placed inside the through hole, interference or damage that may be caused by exposed transmission components is avoided.

[0015] Furthermore, the bottom of the slot is provided with an elastic clamping part, which is configured such that after the filter element is locked by the locking tongue and the locking hole, the elastic clamping part is compressed, and after the locking tongue and the locking hole are released, the elastic clamping part is elastically reset to push the filter element at least partially out of the slot.

[0016] By adopting the above technical solution and setting the elastic clamping part, the problem of manually pulling out the filter element in the initial stage of disassembly is solved. When the locking tongue separates from the locking hole, the compressed elastic clamping part immediately releases the stored elastic potential energy and automatically pushes the filter element out of the slot a certain distance. This function greatly facilitates the removal of the filter element. Users do not need to painstakingly pry open the edge of the filter element. The advantages of this design are more obvious, especially when the filter element and the slot fit tightly. In addition, the elastic clamping part plays a buffering role when installing the filter element, reducing the impact force at the insertion end, while ensuring that the locking tongue and the locking hole can be fully in place, thus improving the reliability of installation.

[0017] Furthermore, the inner side of the outer casing is provided with a frame, and the outer side of the frame is detachable with a protective frame. A slot is formed between the frame and the protective frame, and an elastic clamping part is formed on the frame.

[0018] By adopting the above technical solution, the modular construction of the slot is achieved through the combined design of the enclosure and the protective frame, which facilitates production, assembly and maintenance. The enclosure serves as the main load-bearing structure, and this split design reduces the replacement cost when individual parts are damaged. The elastic clamping part is set on the enclosure, making it the core functional module of the slot. The disassembly of the protective frame will not affect the clamping function. This structural layout is conducive to optimizing the production process. The enclosure can be made of high-strength materials, while the protective frame can be made of aesthetically pleasing decorative materials, taking into account both functionality and aesthetics. At the same time, the detachable connection between the enclosure and the protective frame provides convenience for the maintenance of the internal mechanism.

[0019] Furthermore, the elastic clamping part includes a second elastic element and a movable rod that passes through the frame. The movable rod and the frame are elastically connected by the second elastic element so that the movable rod has a certain elastic expansion and contraction space in the insertion direction of the filter element.

[0020] By adopting the above technical solution, the movable rod, as the thrust component that directly contacts the filter element, can be designed to be made of wear-resistant material, while the second elastic element provides continuous elastic force so that after the filter element is installed in the slot, it can push the movable rod to move, thereby allowing the second elastic element to store elastic potential energy. When the filter element is removed, the movable rod resets to push the filter element to actively exit the slot, making it convenient to replace the filter element.

[0021] A dehumidifier includes the above-mentioned filter insert structure, and the outer shell includes a back shell and a front shell, with the filter insert structure correspondingly disposed on the front shell.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] This invention features a movable unlocking button on the filter element, which forms a wedge-shaped engagement with the ends of the two locking tongues. A simple pressing action can simultaneously drive the two locking tongues to move in opposite directions, thereby unlocking the filter element from the outer shell. This design optimizes the traditional two-handed operation into a simple action that can be completed with one hand. Users no longer need to laboriously reach into the narrow space of the device to simultaneously operate the two latches, greatly reducing the difficulty of operation and space requirements.

[0024] In this invention, the wedge-fit transmission method efficiently converts the vertical pressing force into the horizontal retraction motion of the locking tongue. This not only ensures the synchronicity of the two locking tongues and avoids uneven wear of components caused by asynchronous unlocking, but also allows users to quickly locate and complete the operation by touch, even when the device is embedded or in low light conditions. This significantly improves the convenience and safety of filter replacement, and this user-friendly design greatly enhances the user experience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the shell structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the back structure of the front shell of this utility model.

[0027] Figure 3 This is a schematic diagram of the filter element structure of this utility model.

[0028] Figure 4 This utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0029] Figure 5 This is a schematic diagram of the filter element structure of this utility model.

[0030] Figure 6 This utility model Figure 5 Enlarged view of the structure at point C.

[0031] Figure 7 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0032] Figure 8 This is a schematic diagram of the overall dehumidifier of this utility model.

[0033] In the picture:

[0034] 1. Outer shell, 1a. Front shell, 1b. Back shell, 12. Water tank opening, 13. Frame, 131. Lock hole, 14. Connecting hole.

[0035] 2. Protective frame.

[0036] 3 filter elements, 31 slots, 311 positioning posts.

[0037] 4. Elastic clamping part, 41. Contact plate, 42. Anti-detachment plate, 43. Second elastic element, 44. Movable rod.

[0038] 5 Locking tongue, 51 Insertion part, 52 Main body, 521 Notch, 53 First elastic element, 54 Mating part, 541 Through hole.

[0039] 6 unlock button, 61 extended feet, 611 bevel. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0041] Reference Figure 1 , 2 3 and 8, a filter element 3 insertion structure, is commonly used in products such as dehumidifiers and filters that require the use of filter element 3. Taking a dehumidifier as an example, its outer shell 1 includes a back shell 1b and a front shell 1a installed on the back shell 1b. The filter element 3 insertion structure is correspondingly provided on the front shell 1a, and the slot is also correspondingly formed on the front shell 1a. Generally, a water tank opening 12 is provided at the bottom of the front shell 1a to facilitate the installation of a water tank. The corresponding slot is located at the top of the water tank. When replacing the filter element 3, the user can directly replace the filter element 3 in the slot through the water tank opening 12.

[0042] In this embodiment, since the opening of the slot faces the water tank, it is conceivable that the slot can also be set on the top of the outer casing 1, that is, the upper end of the slot opening, so that the filter element 3 can also be replaced from the top of the dehumidifier. Of course, the opening can also be set in other positions of the outer casing 1, which will not be described in detail here.

[0043] Reference Figure 1 and 3The filter element 3 is inserted into the slot from top to bottom through the slot opening. For ease of description, the end of the filter element 3 facing away from its insertion end is called the lower end, and the insertion end of the filter element 3 is called the upper end. Both sides of the lower end of the filter element 3 are elastically and retractably provided with locking tongues 5. An unlocking key 6 is provided between the adjacent ends of the two locking tongues 5. The unlocking key 6 is movably provided on the filter element 3 and forms a wedge engagement with the end of the locking tongue 5. The face shell 1a has locking holes 131 on both sides along the insertion direction of the filter element 3. Pressing the unlocking key 6 can drive the two locking tongues 5 to move towards each other to disengage from the locking holes 131. After the force of pressing the unlocking key 6 is released, the locking tongues 5 can automatically reset under the elastic force, thereby allowing the locking tongues 5 to extend from both sides of the filter element 3, so as to facilitate the insertion and engagement with the locking holes 131 on the face shell 1a, thereby realizing the convenient assembly between the filter element 3 and the face shell 1a.

[0044] In this embodiment, by setting a movable unlocking button 6 on the filter element 3, it forms a wedge engagement with the ends of the two locking tongues 5. A simple pressing action can synchronously drive the two locking tongues 5 to move towards each other, thereby unlocking the filter element 3 and the face shell 1a. This design optimizes the traditional two-hand operation into a simple action that can be completed with one hand. Users no longer need to laboriously reach into the narrow space of the device to simultaneously operate the two latches, greatly reducing the difficulty of operation and space requirements.

[0045] In this embodiment, the wedge-fit transmission method efficiently converts the vertical pressing force into the horizontal retraction motion of the locking tongue 5. This not only ensures the synchronicity of the two locking tongues 5 and avoids uneven wear of components caused by asynchronous unlocking, but also the press-to-unlock design allows users to quickly locate and complete the operation by touch, even when the device is embedded or in low light conditions. This significantly improves the convenience and safety of filter replacement, and this user-friendly design greatly enhances the user experience.

[0046] In this embodiment, the installation direction of the filter element 3 is along the vertical direction of the face shell 1a, and the movement direction of the locking tongue 5 is perpendicular to the installation direction of the filter element 3 on the plane where the face shell 1a is located. The advantage of this design is that by setting the movement direction of the locking tongue 5 to be perpendicular to the installation direction of the filter element 3, an orthogonal mechanical system is formed, so that the vibration or impact on the filter element 3 in the installation direction will not directly affect the locking state of the locking tongue 5. This vertical layout effectively utilizes the space on the side of the filter element 3, so that the structure of the locking tongue 5 will not increase the overall thickness of the filter element 3, which is conducive to the miniaturization design of the device. At the same time, this direction setting ensures that the locking tongue 5 can smoothly slide past the edge of the lock hole 131 during the insertion of the filter element 3, and automatically spring into the lock hole 131 under the action of the spring when it reaches the designated position, realizing one-click locking. During disassembly, the vertical movement direction ensures that the locking tongue 5 will not interfere with the movement of the filter element 3 after it leaves the lock hole 131, ensuring that the filter element 3 can be smoothly removed.

[0047] In this embodiment, refer to Figure 3 and4 The locking tongue 5 includes a main body 52, a mating part 54 and a plugging part 51 respectively provided at both ends of the main body 52. ​​The plugging part 51 is plugged into the lock hole 131, and the mating part 54 is wedge-fitted with the unlocking key 6. In order to optimize the product volume structure, the lower end of the filter element 3 is provided with slots 31 on both sides to accommodate the locking tongue 5. The main body 52 and the slots 31 are elastically connected by a first elastic member 53. Under normal conditions, the elasticity of the first elastic member 53 causes the plugging part 51 at one end of the main body 52 to extend out of both sides of the filter element 3 so as to be plugged into the lock hole 131.

[0048] In this embodiment, by creating a slot 31 specifically for accommodating the locking tongue 5 and placing the first elastic element 53 between the slot 31 and the main body 52 of the locking tongue 5, a fully built-in design of the locking tongue 5 mechanism is achieved. This layout ensures that the locking tongue 5 is completely inside the filter element 3 body during operation, avoiding the risk of jamming caused by foreign objects entering the locking tongue 5 movement mechanism. At the same time, the slot 31 provides a precise guide track for the locking tongue 5, ensuring that the locking tongue 5 always moves in the predetermined direction without swaying or jamming. The built-in installation of the first elastic element 53 not only saves external space but also plays a protective role, preventing the elastic element from degrading in performance due to external environmental factors (such as dust and moisture). In addition, this design maintains the integrity of the filter element 3's appearance, making it easy to clean and maintain.

[0049] Furthermore, a notch 521 is provided inside the main body 52, and a positioning post 311 extending into the notch 521 is provided at the bottom of the slot 31. One end of the first elastic member 53 is connected to one side of the notch 521, and the other end of the first elastic member 53 is connected to the positioning post 311. This provides a reliable installation reference for the first elastic member 53, ensuring that the elastic member will not shift or twist during operation. It also makes the assembly of the first elastic member 53, the positioning post 311 and the main body 52 more compact, which helps to further optimize the product volume.

[0050] In this embodiment, referring to 3-6, as a wedge-shaped engagement between the mating part 54 and the unlocking key 6, specifically, the unlocking key 6 is located between the mating parts 64 of the two locking tongues 5. The unlocking key 6 can move on the filter element 3 along the installation direction of the filter element 3. A through hole 541 is formed inside the mating part 54. The unlocking key 6 is provided with an extension foot 61 corresponding to the position of the two through holes 541. The extension foot 61 is movably inserted into the through hole 541 and has a slope 611. When the unlocking key 6 is pressed, the extension foot 61 moves and squeezes the through hole 541 through the slope 611, thereby driving the two mating parts 54 to move closer to each other, so that the locking tongue 5 is separated from the insertion state of the locking hole 131. At this time, the first elastic element 53 stores elastic potential energy. When the external force on the unlocking key 6 is removed, the first elastic element 53 resets and drives the locking tongue 5 to extend out of both sides of the filter element 3.

[0051] In this embodiment, the first elastic element 53 can be a spring, tension spring, elastic rubber or other elastic element. Since the main body 52, the first elastic element 53 and the notch 521 are set in different positions, the first elastic element 53 can also be other structures or components, which will not be elaborated here.

[0052] Based on the above embodiments, in order to make the filter element 3 more stable after being inserted into the slot, and also to facilitate the disassembly of the filter element 3, a further elastic clamping part 4 is provided at the bottom of the slot (the bottom of the slot is...). Figure 2 As shown in the diagram, the upper end of the housing 1a) has an elastic clamping part 4 that is compressed after the filter element 3 is locked by the locking tongue 5 and the locking hole 131. This design allows the elastic clamping part 4 to act as a buffer during the installation of the filter element 3, reducing the impact force at the insertion end, while ensuring that the locking tongue 5 and the locking hole 131 are fully in place, thus improving the reliability of the installation. After the locking tongue 5 and the locking hole 131 are disengaged, the elastic part 4 is reset to push the filter element 3 at least partially out of the slot, thereby facilitating the user to remove the filter element 3.

[0053] Specifically, in order to facilitate the maintenance of filter element 3, improve the modularity of the product, and reduce maintenance costs, the slot consists of a frame 13 located inside the housing 1a and a protective frame 2 that can be detached from the frame 13. The two can be connected by snap-fit ​​screws or screws. This split design reduces the replacement cost when individual parts are damaged.

[0054] In this embodiment, the protective frame 2 can be wrapped around the outside of the enclosure 13. At this time, the lock hole 131 can be formed on the enclosure 13, or the protective frame 2 can be embedded in the enclosure 13. At this time, the lock hole 131 is provided on the protective frame 2. Of course, the lock hole 131 can also be provided on both the enclosure 13 and the protective frame 2. The following embodiments all take the protective frame 2 wrapping around the enclosure 13 as an example.

[0055] Reference Figure 2 and 7 The elastic clamping part 4 is set on the frame 13, making it the core functional module of the slot. The disassembly of the guard frame 2 will not affect the clamping function. This structural layout is conducive to optimizing the production process. The frame 13 can be made of high-strength materials, while the guard frame 2 can be made of beautiful decorative materials, taking into account both functionality and aesthetics. At the same time, the detachable connection between the frame 13 and the guard frame 2 provides convenience for the maintenance of the internal mechanism.

[0056] As a specific embodiment of the elastic clamping part 4, it includes a movable rod 44 and a second elastic element 43. The movable rod 44 movably passes through the frame 13, and its lower end extends into the slot. The two ends of the second elastic element 43 are elastically connected to the movable rod 44 and the frame 13 respectively, so that the movable rod 44 has a certain elastic extension and contraction distance. When the filter element 3 is inserted into the slot, the upper end of the filter element 3 will abut against the lower end of the movable rod 44, thereby causing the movable rod 44 to displace against the elastic force of the second elastic element 43. At this time, the second elastic element 43 stores elastic potential energy. Then, after the locking tongue 5 cooperates with the locking hole 131, the filter element 3 is stably fixed. When the unlocking button 6 is pressed to separate the locking tongue 5 from the lock, the lower end of the filter element 3 is not locked. Under the elastic force of the second elastic element 43, the second elastic element 43 resets to push the filter element 3 out of the slot, so that personnel can quickly and conveniently replace the filter element 3.

[0057] Preferred, refer to Figure 7 The frame 13 has a connecting hole 14 at the position where the movable rod 44 passes through. The movable rod 44 is movably inserted into the connecting hole 14. In order to optimize the elastic clamping part 4, a contact plate 41 can be provided at the lower end of the movable rod 44 to increase its contact area with the filter element 3. The second elastic element 43 can be a spring or a compression spring at this time. It is sleeved on the outside of the movable rod 44, and its upper and lower ends abut against the upper end of the contact plate 41 and the inner wall of the frame 13, respectively. In addition, an anti-detachment plate 42 can be provided at the upper end of the movable rod 44 to prevent the movable rod 44 from detaching from the frame 13 through the connecting hole 14 under the elastic force of the second elastic element 43.

[0058] Based on the above embodiments, the second elastic element 43 can be in different positions, such as generating elastic tension, such as tension springs, elastic bands, etc., or it can be in an elastic compression state, such as compression springs, springs, elastic rubber, etc. As long as it is based on the elastic extension and contraction force of the movable rod 44 in the insertion direction of the filter element 3, it may also be other structures, which will not be elaborated here.

[0059] As another embodiment of the elastic clamping part 4, it can also be a spring, compression spring, elastic tab, elastic rubber or other elastic element directly provided on the frame 13, as long as it can buffer the filter element 3 after the filter element 3 is fully inserted into the slot, and can elastically reset to push the filter element 3 at least partially out of the slot after the locking tongue 5 and the locking hole 131 of the filter element 3 are separated. Its elastic clamping part 4 can also be other structures or components.

[0060] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter cartridge insertion structure, comprising a dehumidifier housing and a filter cartridge, wherein the housing has a slot, and the filter cartridge can be inserted into the slot, characterized in that, The filter element has elastically extendable locking tongues on both sides of its opposite insertion end. The two locking tongues extend from opposite sides of the filter element in normal operation to engage with the lock holes formed by the inner wall of the slot. An unlocking key is provided between the adjacent ends of the two locking tongues. The unlocking key is movably located on the filter element and forms a wedge engagement with the ends of the locking tongues. Pressing the unlocking key can drive the two locking tongues to move towards each other to disengage from the lock holes.

2. The filter cartridge insertion structure according to claim 1, characterized in that, The direction of movement of the latch is perpendicular to the installation direction of the filter element on the plane where the outer casing is located.

3. The filter cartridge insertion structure according to claim 2, characterized in that, The latch includes a main body, a plug-in portion and a mating portion respectively disposed at both ends of the main body. The plug-in portion is plugged into the lock hole, and the mating portion is wedge-fitted with the unlocking key.

4. The filter cartridge insertion structure according to claim 3, characterized in that, The filter element has slots on both sides inside the end opposite to its insertion end to accommodate the locking tongue, and the main body and the slots are elastically connected by a first elastic element.

5. A filter cartridge insertion structure according to claim 4, characterized in that, The main body has a notch inside, and the bottom of the slot has a positioning post extending into the notch. The first elastic element is elastically loaded between the inner wall of the notch and the positioning post.

6. The filter cartridge insertion structure according to claim 3, characterized in that, The unlocking key is located between the two mating parts. The mating parts have through holes inside. The latch has an extension foot that is inserted into the through hole along its direction of movement. The side of the extension foot has an inclined surface that forms a wedge engagement with the through hole.

7. The filter cartridge insertion structure according to claim 1, characterized in that, The bottom of the slot is provided with an elastic clamping part, which is configured such that: after the filter element is locked by the locking tongue to the locking hole, the elastic clamping part is compressed, and after the locking tongue is released from the locking hole, it elastically resets to push the filter element at least partially out of the slot.

8. The filter cartridge insertion structure according to claim 7, characterized in that, The inner side of the outer shell is provided with a frame, and a detachable protective frame is provided on the outside of the frame. The slot is formed between the frame and the protective frame, and the elastic clamping part is formed on the frame.

9. A filter cartridge insertion structure according to claim 8, characterized in that, The elastic clamping part includes a second elastic element and a movable rod that passes through the frame. The movable rod and the frame are elastically connected by the second elastic element so that the movable rod has a certain elastic expansion and contraction space in the insertion direction of the filter element.

10. A dehumidifier, characterized in that, The filter cartridge insertion structure includes any one of claims 1-9, wherein the housing includes a back shell and a front shell, and the filter cartridge insertion structure is correspondingly disposed on the front shell.

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