Switching power supply protection structure and humidifier

Abstract

The utility model provides a switching power supply protection structure and a humidifier, the switching power supply protection structure is applied to the humidifier, the humidifier comprises a front shell assembly and a switching power supply, the protection structure comprises a fixed support and a protective cover, the fixed support is fixed on the front shell assembly, the protective cover is arranged on the fixed support, the protective cover comprises a bottom plate and an enclosing plate, and the enclosing plate is arranged on the bottom plate. The bottom plate is fixed to the fixing support, the enclosing plate is arranged on the peripheral side of the bottom plate, the protective cover is provided with a first crease between the enclosing plate and the bottom plate, the bottom plate and the enclosing plate can be enclosed through the first crease to form a containing space, the enclosing plate comprises four sub enclosing plates, and the ends, away from the bottom plate, of the sub enclosing plates are connected through buckles to cover the containing space. The switching power supply is fixed in the accommodating space. The protective cover is clamped with the buckle by folding the first crease, so that the switching power supply can be protected, the structure is simple, the assembly difficulty is low, metal screws are not included, the screws of the metal shell are prevented from falling onto the switching power supply, and short circuit of the switching power supply is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a switch power supply protection structure and a humidifier. Background Art

[0002] Humidifiers are widely used in medical products such as ventilators. During the patient treatment process, they can assist the ventilator to humidify the oxygen in the pipeline and moisten the patient's respiratory tract to achieve the best treatment effect. In humidifier products, switching power supply devices are widely used and are important devices for connecting external power supplies and monitoring components. Since the switching power supply device is installed inside medical humidifiers and other equipment, it needs to be protected to prevent the risk of circuit short circuit. In the related art, a protective shell is usually installed on the periphery of the switching power supply device, and then the protective shell is usually fixedly connected to the switching power supply by screws, which has a certain assembly difficulty, and more metal screws increase the probability of the screws falling into the switching power supply, which is more likely to cause the risk of circuit short circuit in the switching power supply in a humid environment. Utility Model Content

[0003] The technical purpose of the utility model is to provide a switching power supply protection structure and a humidifier, aiming to solve the technical problems of high cost and sharp edges of metal protective covers in related technologies.

[0004] To solve the above technical problems, the utility model is implemented as follows: a switching power supply protection structure is applied to a humidifier, the humidifier includes a front shell assembly and a switching power supply, the protection structure includes a fixed bracket and a protective cover, the fixed bracket is fixed to the front shell assembly, the protective cover is arranged on the fixed bracket, the protective cover includes a base plate and an enclosure plate, the base plate is fixed to the fixed bracket, the enclosure plate is arranged on the peripheral side of the base plate, and the protective cover has a first fold between the enclosure plate and the base plate, the base plate and the enclosure plate can be enclosed by the first fold to form a receiving space, the enclosure plate includes four sub-enclosure plates, and each of the sub-enclosure plates is connected by a snap-fit ​​at one end away from the base plate to cover the receiving space, and the switching power supply is fixed in the receiving space.

[0005] Furthermore, the protective cover is made of plastic.

[0006] Furthermore, the thickness of the bottom plate is 0.3-0.5 mm, and the thickness of the enclosing plate is 0.3-0.5 mm.

[0007] Furthermore, the base plate is in a quadrilateral shape, and the enclosed plate includes a first sub-enclosed plate, a second sub-enclosed plate and two third sub-enclosed plates, the first sub-enclosed plate and the second sub-enclosed plate are relatively arranged on the base plate, and the two third sub-enclosed plates are relatively arranged at the other two ends of the base plate, and the protective cover is provided with the first fold between the base plate and the first sub-enclosed plate, between the base plate and the second sub-enclosed plate, and between the base plate and the third sub-enclosed plates.

[0008] Furthermore, the first sub-enclosure plate is provided with a first clamping structure, and the second sub-enclosure plate is provided with a second clamping structure, and the first clamping structure is connected to the second clamping structure so that the first sub-enclosure plate and the second sub-enclosure plate are fixedly connected.

[0009] Furthermore, the first snap-fitting structure includes a first snap-fitting structure connected to an end of the first sub-enclosure plate away from the base plate, and the second snap-fitting structure includes a first snap-fitting groove opened at an end of the second sub-enclosure plate away from the base plate, and the first snap-fitting structure is snap-fitted into the first snap-fitting groove.

[0010] Furthermore, the first sub-enclosure panel is provided with a second fold, and the second fold has a main body and a connecting portion on both sides respectively. The main body is connected to the bottom plate and is arranged opposite to the second sub-enclosure panel, and the connecting portion is connected to one end of the main body away from the bottom plate and is arranged opposite to the bottom plate.

[0011] Further, the connecting portion includes two third clamping structures arranged opposite to each other, and the two third sub-enclosed plates are both provided with a fourth clamping structure, and the third clamping structure and the fourth clamping structure are connected so that the two third sub-enclosed plates are respectively fixedly connected to the first sub-enclosed plate;

[0012] Alternatively, one of the third sub-enclosure plates is provided with a fifth clamping structure, and the other third sub-enclosure plate is provided with a sixth clamping structure, and the fifth clamping structure and the sixth clamping structure are connected to fix the two third sub-enclosure plates in connection.

[0013] Furthermore, a positioning column is provided on one side of the fixing bracket facing the bottom plate, a positioning hole matching the positioning column is opened on the bottom plate, and the positioning column is sleeved in the positioning hole and partially protrudes from the positioning hole.

[0014] Furthermore, a humidifier includes a front shell assembly, a switching power supply and the switching power supply protection structure as described above, wherein the fixing bracket is fixed to the front shell assembly, and the switching power supply is fixed in the accommodating space.

[0015] Compared with the related art, the switch power supply protection structure in the utility model has the following beneficial effects:

[0016] The protective cover of the present solution includes a base plate and an enclosure plate, and the protective cover is provided with a first fold between the base plate and the enclosure plate. During assembly, the base plate and the enclosure plate can be enclosed to form a receiving space by folding the first fold; further, the enclosure plate includes four sub-enclosure plates, and each sub-enclosure plate can be connected by a buckle at one end away from the base plate, so that each sub-enclosure plate can cover the receiving space, and the switching power supply is fixed in the receiving space, which is equivalent to the protective cover being able to wrap up the switching power supply, thereby preventing the condensate generated during the use of the humidifier from adhering to the switching power supply, and effectively preventing the risk of circuit short circuit. The present solution only needs to wrap the protective cover around the outside of the switching power supply by folding the first fold and snapping the buckle to protect the switching power supply, and has a simple structure and reduces the difficulty of assembly. The protective cover does not include metal screws, thereby effectively solving the technical problem in the related art that the screws of the metal shell fall onto the switching power supply, which easily causes a short circuit in the switching power supply circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the front housing assembly and the switch power supply protection structure when they are connected in the embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the protective cover in the embodiment of the utility model when it is assembled;

[0020] Figure 3 It is a schematic diagram of the structure of the connection between the protective cover and the switch power supply when the protective cover is unfolded in the embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure when the protective cover in the embodiment of the utility model is unfolded.

[0022] In the accompanying drawings, each figure mark represents: 1. front shell assembly; 2. fixed bracket; 3. protective cover; 30. first fold; 31. bottom plate; 32. first sub-enclosing plate; 320. second fold; 321. main body; 322. connecting part; 33. second sub-enclosing plate; 34. third sub-enclosing plate; 4. switching power supply; 5. first buckle; 6. first slot; 7. second slot; 8. second buckle; 10. accommodating space. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] See also Figure 1-2 The utility model provides a protection structure of a switching power supply 4, which is applied to a humidifier. The humidifier includes a front shell component 1 and a switching power supply 4. The protection structure includes a fixed bracket 2 and a protective cover 3. The fixed bracket 2 is fixed to the front shell component 1. The protective cover 3 is arranged on the fixed bracket 2. The protective cover 3 includes a bottom plate 31 and an enclosure plate. The bottom plate 31 is fixed to the fixed bracket 2. The enclosure plate is arranged on the peripheral side of the bottom plate 31. The protective cover 3 has a first fold 30 between the enclosure plate and the bottom plate 31. The bottom plate 31 and the enclosure plate can be enclosed together to form a receiving space 10 through the first fold 30. The enclosure plate includes four sub-enclosure plates, and each sub-enclosure plate is connected by a snap-fit ​​at one end away from the bottom plate 31 to cover the receiving space 10. The switching power supply 4 is fixed in the receiving space 10.

[0027] The protective cover 3 of the present solution includes a bottom plate 31 and an enclosure plate, and the protective cover 3 is provided with a first fold 30 between the bottom plate 31 and the enclosure plate. During assembly, the bottom plate 31 and the enclosure plate can be enclosed to form a receiving space 10 by folding the first fold 30; further, the enclosure plate includes four enclosure plates, and each sub-enclosure plate can be connected by a buckle at one end away from the bottom plate 31, so that each sub-enclosure plate can cover the receiving space 10, and the switch power supply 4 is fixed in the receiving space 10, which is equivalent to the protective cover 3 wrapping up the switch power supply 4, thereby preventing the condensate generated during the use of the humidifier from adhering to the switch power supply 4, and effectively preventing the risk of circuit short circuit. The present solution only needs to wrap the protective cover 3 around the outside of the switch power supply 4 by folding the first fold 30 and snapping the buckle, so as to protect the switch power supply 4, and has the effect of simple structure and reduced assembly difficulty, and the protective cover 3 does not include metal screws, so as to effectively solve the technical problem in the related art that the screws of the metal shell fall onto the switch power supply 4, which is easy to cause the switch power supply 4 circuit short circuit.

[0028] Furthermore, the protective cover 3 of the present solution is made of plastic. Since plastic is not conductive, compared with the metal protective cover 3 in the related art, the present solution can prevent the risk of short circuit caused by metal parts such as screws of the front shell assembly 1 falling off to the protective cover 3; further, in the related art, the edge of the metal shell is relatively sharp, and there is a risk of cutting or scratching the wires, while the protective cover 3 made of plastic in the present solution is safe to use and can effectively avoid the risk of cutting or scratching the wires during use. Specifically, in the present embodiment, the protective cover 3 can be made of PET material, PET (Polyethylene terephthalate, PET contains polyethylene terephthalate), PET has low gas and water vapor permeability, and has excellent gas barrier, water barrier, and oil barrier properties, so that even if the condensate generated by the humidifier during use falls onto the protective cover 3, the protective cover 3 can also play a good insulating role, and the switching power supply 4 wrapped in the sealed receiving space 10 of the protective cover 3 will not be corroded by the condensate, thereby effectively avoiding the risk of circuit short circuit; in addition, PET has good mechanical properties, and its impact strength is 3-5 times that of other films, therefore, even if the humidifier is hit, the protective cover 3 can well protect the switching power supply 4 from the impact; further, PET has good folding resistance, therefore, the bottom plate 31 and the enclosure plate of the protective cover 3 can be formed in one piece, and then bent as needed, thereby simplifying the assembly process and reducing the manufacturing cost. In some embodiments, the protective cover 3 can be made of PC material. PC (Polycarbonate) has high strength and high impact strength, so it can effectively prevent the switch power supply 4 from being damaged by external impact; and PC has excellent insulation performance. Even in a humid and high temperature environment, the PC material can still maintain stable insulation, so even if the metal parts such as screws of the front shell component 1 fall onto the protective cover 3, it will not cause a short circuit in the switch power supply 4. In other embodiments, the protective cover 3 can be made of PP material, ABS material or PVC material, etc.

[0029] Furthermore, the thickness of the bottom plate 31 and the enclosure plate are both 0.3-0.5 mm. Specifically, the thickness of the bottom plate 31 can be 0.3, 0.32, 0.35, 0.38, 0.4, 0.42, 0.45, 0.48 or 0.5 mm, etc.; the thickness of the enclosure plate can be 0.3, 0.32, 0.35, 0.38, 0.4, 0.42, 0.45, 0.48 or 0.5 mm, etc.; the protective cover 3 is provided with a plastic sheet, so as to reduce the weight of the whole machine and reduce the cost. Preferably, the thickness of the bottom plate 31 is 0.4 mm, and the thickness of the enclosure plate is 0.4 mm, so as to reduce the cost and the weight of the whole machine while ensuring the structural strength of the bottom plate 31 and the enclosure plate.

[0030] Furthermore, the bottom plate 31 is in a quadrilateral shape, and the enclosure plate includes a first sub-enclosure plate 32, a second sub-enclosure plate 33 and two third sub-enclosure plates 34. The first sub-enclosure plate 32 and the second enclosure plate are arranged at two opposite ends of the bottom plate 31, and the two third sub-enclosure plates 34 are relatively arranged at the other two ends of the bottom plate 31. The protective cover 3 is provided with a first fold 30 between the bottom plate 31 and the first sub-enclosure plate 32, between the bottom plate 31 and the second sub-enclosure plate 33, and between the bottom plate 31 and the third sub-enclosure plate 34.

[0031] Specifically, the bottom plate 31 and the enclosure plate are integrally formed into a whole, and then the whole is processed with an indentation line, and then folded along the first fold 30, so that the first sub-enclosure plate 32, the second sub-enclosure plate 33 and the two third sub-enclosure plates 34 are all at a 90° angle with the bottom plate 31. Specifically, the bottom plate 31 is rectangular, and the first sub-enclosure plate 32, the second sub-enclosure plate 33 and the third sub-enclosure plate 34 are all rectangular. During the assembly process, the bottom of the switching power supply 4 can be first fixed to the bottom plate 31 side, and then each sub-enclosure plate is folded along the first fold 30, and the side edges of each sub-enclosure plate are attached to each other. Furthermore, in this embodiment, one of the sub-enclosure panels (such as the first sub-enclosure panel 32) can be set to be longer in length, so that a second fold 320 can be provided. After folding upward along the first fold 30, the first sub-enclosure panel 32 can continue to be folded along the second fold 320, so as to cover the top of the switching power supply 4, so that the bottom plate 31 and the enclosure panel are enclosed to form a receiving space 10.

[0032] Further, when the first sub-enclosed plate 32 is a long sub-enclosed plate, the first sub-enclosed plate 32 is provided with a second fold 320, and the two sides of the second fold 320 are respectively a main body 321 and a connecting portion 322, the main body 321 is connected to the bottom plate 31 and is arranged opposite to the second sub-enclosed plate 33, and the size of the main body 321 is the same as the size of the second sub-enclosed plate 33, and the connecting portion 322 is connected to the end of the main body 321 away from the bottom plate 31 and is arranged opposite to the bottom plate 31, and the size of the connecting portion 322 is the same as the size of the bottom plate 31. During the assembly process, the first sub-enclosed plate 32 is folded upward along the first fold 30 like other sub-enclosed plates, so that the main body 321 can be perpendicular to the bottom plate 31, and then the first sub-enclosed plate 32 is folded again along the second fold 320, so that the connecting portion 322 is perpendicular to the main body 321, and at this time the connecting portion 322 is parallel to the bottom plate 31, so that the connecting portion 322 can cover the switch power supply 4.

[0033] In this embodiment, the heights of the main body 321, the second sub-enclosed plate 33, and the third sub-enclosed plate 34 are all the same and can be equal to the height of the switching power supply 4, the widths of the main body 321 and the second sub-enclosed plate 33 can be the same and can be equal to the maximum width of the switching power supply 4; the lengths of the two third sub-enclosed plates 34 can be equal to the minimum length of the switching power supply 4. The bottom of the switching power supply 4 faces the bottom plate 31, and the bottom surface of the switching power supply 4 can match the size of the bottom plate 31. The first sub-enclosed plate 32, the second sub-enclosed plate 33, and the two third sub-enclosed plates 34 are all perpendicular to the bottom plate 31, so that the peripheral side of the switching power supply 4 can be attached to each sub-enclosed plate, thereby reducing the occupied space and reducing the volume of the whole machine.

[0034] In some embodiments, the height of the main body 321, the second sub-enclosure plate 33 and the third sub-enclosure plate 34 can be greater than the height of the switching power supply 4; the length and width of the bottom plate 31 can be greater than the minimum length of the switching power supply 4 or greater than the maximum length of the switching power supply 4; the width of the main body 321 and the second sub-enclosure plate 33 can be greater than the maximum width of the switching power supply 4; the length and height of the two third sub-enclosure plates 34 can both be greater than the length and height of the switching power supply 4.

[0035] Specifically, the first buckle 5 can be arrow-shaped, and the tail of the first buckle 5 is connected to the free end of the connecting portion 322, the width of the tail of the first buckle 5 is smaller than the width of the connecting portion 322, and the head of the first buckle 5 is a triangle with chamfers, so that the first buckle 5 can be easily inserted into the first slot 6, and its maximum width is less than or equal to the width of the connecting portion 322 and greater than the width of the tail of the first buckle 5, so that there is a certain distance between the head of the first buckle 5 and the connecting portion 322. The first slot 6 is a gap opened in the second sub-enclosure plate 33, and the first buckle 5 and the connecting portion 322 have a fold. After folding, the position where the head of the first buckle 5 and the connecting portion 322 have a distance corresponds to the position of the gap, and the width of the gap is smaller than the maximum width of the head of the first buckle 5, so that the first buckle 5 can be inserted into the slot, and then the first sub-enclosure plate 32 can be stably connected to the second sub-enclosure plate 33 after folding.

[0036] In some embodiments, the first snap-in structure can be opened in the limiting hole of the connecting part 322, and the connecting part 322 has a fold, which covers the top of the switching power supply 4 on one side and has a limiting hole on the other side. The second snap-in structure can be a limiting column protruding from the side of the second sub-enclosure plate 33 away from the switching power supply 4 and matching the limiting hole, and the limiting column also has an arrow shape, and the tail of the limiting column is connected to the second sub-enclosure plate 33. After the fold is folded, the limiting column can be clamped in the limiting hole after the limiting hole is penetrated, and finally a stable connection between the first sub-enclosure plate 32 and the second sub-enclosure plate 33 can be achieved.

[0037] Furthermore, in this embodiment, the connecting portion 322 includes two relatively arranged third clamping structures, and the two third sub-enclosure panels 34 are both provided with a fourth clamping structure. The third clamping structure and the fourth clamping structure are connected so that the two third sub-enclosure panels 34 are respectively fixedly connected to the first sub-enclosure panel 32.

[0038] Specifically, the third snap-fit ​​structure includes two second snap-fit ​​grooves 7 opened in the connection part 322, and the fourth snap-fit ​​structure includes a second snap-fit ​​8 provided at an end of the third sub-enclosing plate 34 away from the bottom plate 31, and the second snap-fit ​​8 is snap-fitted in the second snap-fit ​​groove 7. When the connection part 322 is folded to cover the top of the switching power supply 4, the second snap-fit ​​groove 7 is also located at the top of the switching power supply 4, and the second snap-fit ​​groove 7 is a gap, and its extension direction is parallel to the third sub-enclosing plate 34. The snap-fit ​​relationship between the second snap-fit ​​8 and the second snap-fit ​​groove 7 is the same as the snap-fit ​​relationship between the first snap-fit ​​5 and the first snap-fit ​​groove 6, the structure of the second snap-fit ​​8 is the same as the first snap-fit ​​5, and the structure of the second snap-fit ​​groove 7 is the same as the first snap-fit ​​groove 6, which will not be described in detail here. Similarly, there is a fold between the second clip 8 and the third sub-enclosure plate 34, so that when the third sub-enclosure plate 34 is perpendicular to the base plate 31, the fold can make the second clip 8 perpendicular to the third sub-enclosure plate 34, that is, the second clip 8 is parallel to the base plate 31. The second clip 8 is located at the top of the switching power supply 4 and is used to engage with the second slot 7, so that the third sub-enclosure plate 34 is stably connected to the first sub-enclosure plate 32.

[0039] In other embodiments, one third sub-enclosed plate 34 is provided with a fifth clamping structure, and another third sub-enclosed plate 34 is provided with a sixth clamping structure, and the fifth clamping structure and the sixth clamping structure are connected to fix the two third sub-enclosed plates 34. A third sub-enclosed plate 34 can be set as a long sub-enclosed plate, and the fifth clamping structure can be equivalent to the first clamping structure, and the sixth clamping structure can be equivalent to the second clamping structure, and the same effect can be achieved, that is, the two third sub-enclosed plates 34 can be stably connected, which will not be described in detail here.

[0040] Furthermore, a positioning column is provided on the side of the fixing bracket 2 facing the bottom plate 31, and a positioning hole matching the positioning column is provided on the bottom plate 31. The positioning column is sleeved in the positioning hole and partially protrudes from the positioning hole; the positioning column is provided with a threaded hole, and the switch power supply 4 is fixedly connected to the positioning column through the threaded hole and screws. During assembly, the positioning hole of the bottom plate 31 can be passed through the positioning column of the fixing bracket 2, and then the switch power supply 4 can be fixedly connected to the fixing bracket 2 with screws, and then the enclosure plate can be folded and enclosed, so that the switch power supply 4 can be fixed in the receiving space 10.

[0041] Furthermore, a humidifier is provided, including a front shell assembly 1, a switching power supply 4 and a protection structure for the switching power supply 4, wherein the fixing bracket 2 is fixed to the front shell assembly 1, and the switching power supply 4 is fixed in the receiving space.

[0042] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0043] The above is a description of the technical solution provided by the utility model. For technicians in this field, according to the ideas of the embodiments of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A switch power supply protection structure, applied to a humidifier, the humidifier comprising a front shell assembly and a switch power supply, characterized in that: The protection structure includes a fixed bracket and a protective cover, the fixed bracket is fixed to the front shell assembly, the protective cover is arranged on the fixed bracket, the protective cover includes a base plate and an enclosure plate, the base plate is fixed to the fixed bracket, the enclosure plate is arranged on the peripheral side of the base plate, and the protective cover has a first fold between the enclosure plate and the base plate, the base plate and the enclosure plate can be enclosed by the first fold to form a receiving space, the enclosure plate includes four sub-enclosure plates, and each of the sub-enclosure plates is connected by a snap-fit ​​at one end away from the base plate to cover the receiving space, and the switching power supply is fixed in the receiving space.

2. The switching power supply protection structure according to claim 1, characterized in that: The protective cover is made of plastic.

3. The switch power supply protection structure according to claim 1, characterized in that: The thickness of the bottom plate is 0.3-0.5 mm, and the thickness of the enclosing plate is 0.3-0.5 mm.

4. The switch power supply protection structure according to claim 1, characterized in that: The base plate is in a quadrilateral shape, and the enclosure plate includes a first sub-enclosure plate, a second sub-enclosure plate and two third sub-enclosure plates. The first sub-enclosure plate and the second sub-enclosure plate are relatively arranged on the base plate, and the two third sub-enclosure plates are relatively arranged at the other two ends of the base plate. The protective cover is provided with the first fold between the base plate and the first sub-enclosure plate, between the base plate and the second sub-enclosure plate, and between the base plate and the third sub-enclosure plates.

5. The switch power supply protection structure according to claim 4, characterized in that: The first sub-enclosure plate is provided with a first clamping structure, and the second sub-enclosure plate is provided with a second clamping structure, and the first clamping structure is connected to the second clamping structure so that the first sub-enclosure plate and the second sub-enclosure plate are fixedly connected.

6. The switch power supply protection structure according to claim 5, characterized in that: The first clamping structure includes a first clamping buckle connected to one end of the first sub-enclosure plate away from the bottom plate, and the second clamping structure includes a first clamping slot opened at one end of the second sub-enclosure plate away from the bottom plate, and the first clamping buckle is clamped in the first clamping slot.

7. The switch power supply protection structure according to claim 6, characterized in that: The first sub-enclosing panel is provided with a second fold, and the second fold has a main body and a connecting portion on both sides respectively. The main body is connected to the bottom plate and is arranged opposite to the second sub-enclosing panel, and the connecting portion is connected to an end of the main body away from the bottom plate and is arranged opposite to the bottom plate.

8. The switch power supply protection structure according to claim 7, characterized in that: The connecting portion includes two third clamping structures arranged opposite to each other, and the two third sub-enclosed plates are both provided with a fourth clamping structure, and the third clamping structure and the fourth clamping structure are connected so that the two third sub-enclosed plates are respectively fixedly connected to the first sub-enclosed plate; Alternatively, one of the third sub-enclosure plates is provided with a fifth clamping structure, and the other third sub-enclosure plate is provided with a sixth clamping structure, and the fifth clamping structure and the sixth clamping structure are connected to fix the two third sub-enclosure plates in connection.

9. The switch power supply protection structure according to claim 1, characterized in that: The fixing bracket is provided with a positioning column on one side facing the bottom plate, the bottom plate is provided with a positioning hole matching with the positioning column, the positioning column is sleeved in the positioning hole and partially protrudes from the positioning hole.

10. A humidifier, characterized in that: It comprises a front shell component, a switching power supply and a switching power supply protection structure as claimed in any one of claims 1 to 9, wherein the fixing bracket is fixed to the front shell component, and the switching power supply is fixed in the accommodating space.

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