Breathing machine

Abstract

The breathing machine comprises a main machine and a humidifying assembly, the main machine is provided with a containing cavity, at least partial area of the humidifying assembly can be contained in the containing cavity, the main machine comprises a first outer shell and a second outer shell, the first outer shell and the second outer shell are matched to form a mounting cavity, and a fan assembly and an air inlet channel are arranged in the mounting cavity; the first shell is provided with a clamping structure, and the second shell is provided with a matching structure matched with the clamping structure in a clamping mode, so that the first shell and the second shell are fixed in a clamping mode. The first shell and the second shell are matched to form the mounting cavity, and the first shell and the second shell are matched and fixed through clamping, so that on one hand, on the basis of ensuring the connection stability and reliability, a large number of additional connecting parts such as screws are not needed, the production cost is saved, and on the other hand, the clamping structure and the matching structure are relatively simple to process; and the operation in the assembling process is more convenient, so that the assembling steps are simplified, and the assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a breathing machine. BACKGROUND

[0002] The breathing machine generally comprises a host computer and a humidification tank, wherein the host computer is internally provided with a blower and an air inlet channel, air from the outside enters the inside of the host computer, is pressurized by the blower and then discharged from the host computer. The humidification tank contains a certain amount of water and is in communication with the air outlet of the host computer, the air pressurized by the blower enters the humidification tank, obtains humidity through contact with water and the heating system of the heating device and then enters the patient interface.

[0003] In order to facilitate the installation of the internal blower and other components, the shell of the host computer usually comprises multiple parts which jointly enclose the installation cavity and constitute the outer surface of the host computer. For example, the shell of some breathing machines comprises an upper shell and a lower shell which are fixedly connected to form an installation cavity for installing the blower and other components.

[0004] However, when assembling and fixing the parts of the shell, the prior art generally adopts the screw fixing mode, and in order to ensure the fixing stability, the number of screws is usually multiple, for example, the screws are arranged at intervals along the circumference of the shell to avoid local lifting of the shell. Although this mode can firmly fix the shell, it is necessary to tighten each screw one by one during assembly, which is not only time-consuming and laborious, but also low in assembly efficiency and increases the production cost of the product.

[0005] Furthermore, in order to better accommodate the blower and form an air duct structure inside the shell, the thickness of the host computer is usually large, so that a screw with a relatively long length is required to complete the fastening of the parts of the shell. This further increases the cost of materials and the time required for tightening the screws, thereby affecting the production efficiency of the product. TECHNICAL FIELD

[0006] The utility model provides a kind of breathing machine to solve the problem that each part is fixed by screw during shell assembly process, which leads to low assembly efficiency and high production cost.

[0007] The technical scheme adopted by the utility model is as follows:

[0008] A breathing machine comprises a host computer and a humidification assembly, the host computer has a containing cavity, at least part of the humidification assembly can be accommodated in the containing cavity, the host computer comprises a first shell and a second shell, the first shell and the second shell cooperate to form an installation cavity, a fan assembly and an air inlet duct are arranged in the installation cavity; the first shell is provided with a clamping structure, the second shell is provided with a matching structure for clamping cooperation with the clamping structure, so that the first shell and the second shell are clamped and fixed.

[0009] The clamping structure comprises a first clamping part arranged at one end of the first shell along the length direction of the first shell, and a second clamping part arranged at the other end of the first shell, and the cooperating structure comprises a first cooperating part arranged corresponding to the first clamping part, and a second cooperating part arranged corresponding to the second clamping part.

[0010] The first clamping part comprises a first clamping structure, the first cooperating part comprises a second clamping structure, the first clamping structure and the second clamping structure are clamped and cooperated, at least one of the second clamping part and the second cooperating part is provided with a clamping groove, and the breathing machine further comprises a clamping piece, which is clamped and cooperated with the clamping groove to fix the second clamping part and the second cooperating part.

[0011] The inner wall of one of the first shell and the second shell is provided with a positioning groove, and the other is provided with a positioning protrusion extending into the positioning groove, one of the first clamping part and the first cooperating part is arranged on the inner wall of the positioning groove, and the other is arranged on the outer wall of the positioning protrusion.

[0012] The inner wall of the first shell or the second shell is provided with a limiting rib, and the limiting rib surrounds the positioning groove.

[0013] The edge of one of the first shell and the second shell is provided with a limiting protrusion, and the edge of the other is provided with a limiting groove matched with the limiting protrusion.

[0014] The first shell has a fixing channel, the second shell has a fixing hole, and the breathing machine further comprises a first fastener, which is fastened and connected through the fixing channel and the fixing hole.

[0015] The clamping structure is arranged at both ends of the first shell along the length direction of the first shell, and the fixing channel is located between the two clamping structures.

[0016] One end of the first shell is provided with a first end face, and one end of the second shell is provided with a second end face, the first end face and the second end face cooperatively form a mounting end face, the breathing machine further comprises a side cover fixed to the mounting end face, and the side cover and the main machine have a sealing piece therebetween.

[0017] One of the first shell and the second shell is provided with a plug-in part, and the side cover is provided with a fixing part capable of being matched with the plug-in part.

[0018] The side cover is provided with a mounting hole, the main machine is provided with a mounting column, the breathing machine comprises a second fastener, which passes through the mounting hole and the mounting column to fix the side cover and the main machine.

[0019] The breathing machine further comprises a transmission circuit board, one side of the side cover facing the main machine is provided with a fixing rib, the fixing rib surrounds a mounting position for mounting the transmission circuit board, and the fixing rib has a clamping hook for clamping and fixing the transmission circuit board.

[0020] With the above technical scheme, the utility model has the beneficial effects of:

[0021] 1. In the utility model, the first shell and the second shell cooperate to form a mounting cavity for mounting components such as a fan assembly and constituting an air inlet air duct structure, and the first shell and the second shell are fixed by clamping cooperation, which on the one hand ensures the stability and reliability of the connection, and on the other hand saves production costs without using a large number of additional connecting components such as screws, and the clamping structure and the cooperating structure are relatively simple to process, and the assembly process is also more convenient to operate, thereby simplifying the assembly steps and improving the assembly efficiency.

[0022] In addition, the main machine also has a containing cavity for containing at least part of the humidifying assembly, and the user can assemble the humidifying assembly into the containing cavity, install the humidifying assembly in the main machine, and assemble the humidifying assembly and the main machine into a whole, thereby not only improving the integrity of the breathing machine, but also reducing the use of connecting pipelines, facilitating use and carrying.

[0023] 2. As a preferred embodiment of the utility model, the clamping structure includes a first clamping part provided at one end of the first shell along the length direction of the first shell, and a second clamping part provided at the other end of the first shell, and the cooperating structure includes a first cooperating part corresponding to the first clamping part, and a second cooperating part corresponding to the second clamping part. The first clamping part and the second clamping part are located at the two ends of the first shell along the length direction, and are clamped and fixed with the corresponding first cooperating part and second cooperating part, which not only realizes the fixation of the first shell and the second shell at the two ends along the length direction, and strengthens the connection stability of the end part which is prone to deformation or loosening, but also because of being provided at the end part, the first clamping part and the second clamping part can be provided on the outer side of the first shell (the side away from the mounting cavity), and similarly, the first cooperating part and the second cooperating part can also be provided on the outer side of the second shell, so that during assembly, the assembler can directly see the positions of the clamping structures, thereby more easily completing the clamping and fixing, further reducing the assembly difficulty and improving the assembly efficiency.

[0024] 3. As a preferred embodiment of the utility model, the inner wall of one of the first shell and the second shell is provided with a positioning groove, and the other is provided with a positioning protruding rib extending into the positioning groove. One of the first clamping part and the first matching part is arranged on the inner wall of the positioning groove, and the other is arranged on the outer wall of the positioning protruding rib. The positioning groove and the positioning protruding rib can position the assembly of the first shell and the second shell, improving the positional accuracy. Meanwhile, the first clamping part and the first matching part are located at the matching position of the positioning protruding rib and the positioning groove, so that the first clamping part and the first matching part are also aligned or clamped after the positioning protruding rib and the positioning groove are positioned. Therefore, when assembling the first shell and the second shell, the first clamping part and the first matching part can be clamped simultaneously by matching the positioning protruding rib and the positioning groove. Moreover, the positioning protruding rib and the positioning groove have a larger volume than the first clamping part and the first matching part, so that the operation of the assembler is more simple, and the assembly efficiency is improved.

[0025] 4. As a preferred embodiment of the utility model, the first shell has a fixing channel, the second shell has a fixing hole, and the breathing machine further comprises a first fastener, which is fastened and connected through the fixing channel and the fixing hole. After the first shell and the second shell are fixed by clamping, the first fastener is fastened and connected, which strengthens the connection of the two and improves the connection stability. The double connection of clamping and the first fastener improves the connection stability of the first shell and the second shell, and the number of the first fastener is obviously reduced, which saves the cost and reduces the assembly difficulty.

[0026] 5. As a preferred embodiment of the utility model, the breathing machine further comprises a transmission circuit board, the side cover has a fixing rib on the side facing the host, the fixing rib encloses a mounting position for mounting the transmission circuit board, and the fixing rib has a clamping hook for clamping and fixing the transmission circuit board. The fixing rib encloses the mounting position for mounting the transmission circuit board on the side cover, which can prompt the assembler to quickly and accurately mount the transmission circuit board. The clamping hook is used to fix the transmission circuit board, which facilitates the mounting and dismounting of the transmission circuit board, and does not need to process a fixing structure on the transmission circuit board, reducing the processing difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the utility model and serve to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0028] Figure 1 It is an assembly diagram of the host and the humidification component of the breathing machine according to an embodiment of the utility model;

[0029] Figure 2 The utility model discloses an exploded view of the structure of the host computer in an embodiment of the utility model;

[0030] Figure 3 The utility model discloses an enlarged view of area A in the middle; Figure 2 The utility model discloses an enlarged view of area B in the middle;

[0031] Figure 4 The utility model discloses an assembly schematic view of the first shell and the second shell in an embodiment of the utility model; Figure 2 The utility model discloses an enlarged view of area A in the middle;

[0032] Figure 5 The utility model discloses an assembly schematic view of the first shell and the second shell in an embodiment of the utility model;

[0033] Figure 6 The utility model discloses a schematic view of the structure of the host computer in an embodiment of the utility model;

[0034] Figure 7 The utility model discloses a schematic view of the bottom structure of the first shell in an embodiment of the utility model;

[0035] Figure 8 The utility model discloses a schematic view of the structure of the first shell in an embodiment of the utility model;

[0036] Figure 9 The utility model discloses a schematic view of the structure of the second shell in an embodiment of the utility model;

[0037] Figure 10 The utility model discloses a partial sectional view of the host computer in an embodiment of the utility model;

[0038] Figure 11 The utility model discloses a schematic view of the structure of the side cover in an embodiment of the utility model;

[0039] Figure 12 The utility model discloses a schematic view of the structure of the side cover in an embodiment of the utility model; Figure 11 The utility model discloses a schematic view of the structure of the side cover in an embodiment of the utility model;

[0040] Wherein:

[0041] 1 host computer, 11 accommodating cavity, 12 first shell, 121 positioning groove, 1211 limiting convex rib, 122 first clamping part, 123 limiting rib, 124 second clamping part, 1241 first convex rib, 1242 insertion slot, 1243 clamping groove, 125 supporting part, 126 first end face, 127 insertion part, 128 accommodating groove, 129 fixed column, 1291 fixed channel, 13 second shell, 131 positioning convex rib, 132 first matching part, 133 second matching part, 1331 second convex rib, 1332 insertion convex, 1333 matching groove, 134 second end face, 135 matching column, 136 limiting groove, 14 mounting cavity, 15 mounting end face, 16 mounting column,

[0042] 2 humidification assembly,

[0043] 3 side cover; 31 fixed part; 32 mounting hole; 33 fixed rib; 331 support rib; 332 mounting position; 34 clamping hook; 35 matching rib; 36 storage card insertion position; 37 end cover;

[0044] 4 clamping piece;

[0045] 5 first fastener;

[0046] 6 transmission circuit board. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the overall concept of the utility model, the following will be described in detail in conjunction with the accompanying drawings of the specification by way of example.

[0048] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0049] In addition, in the description of the utility model, it is understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the utility model.

[0050] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. In the description of the present application, the description of the terms "embodiment", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] As shown in Figure 1 , Figure 2 , a breathing machine comprises a main machine 1 and a humidification assembly 2, the main machine 1 has a containing cavity 11, at least part of the humidification assembly 2 can be contained in the containing cavity 11, the main machine 1 comprises a first shell 12 and a second shell 13, the first shell 12 and the second shell 13 cooperate to form a mounting cavity 14, and a fan assembly and an air inlet duct are arranged in the mounting cavity 14; the first shell 12 is provided with a clamping structure, and the second shell 13 is provided with a matching structure matched with the clamping structure, so that the first shell 12 and the second shell 13 are clamped and fixed.

[0053] In the present application, the first shell 12 and the second shell 13 cooperate to form the mounting cavity 14, which is used for mounting the fan assembly and other components and constitutes the air inlet duct structure, and the first shell 12 and the second shell 13 are fixed by clamping and matching, which not only ensures the stability and reliability of the connection, but also saves production cost without using a large number of screws and other additional connecting components, and the processing of the clamping structure and the matching structure is relatively simple, and the operation during assembly is more convenient, thereby simplifying the assembly steps and improving the assembly efficiency.

[0054] In addition, as shown in Figure 1 , the main machine 1 also has the containing cavity 11 for accommodating at least part of the humidification assembly 2, and the user can assemble the humidification assembly 2 into the containing cavity 11 and install the humidification assembly 2 inside the main machine 1, so that the humidification assembly 2 and the main machine 1 are assembled into a whole, thereby not only improving the integrity of the breathing machine, but also reducing the use of connecting pipelines, facilitating use and carrying.

[0055] Preferably, the first shell 12 and the second shell 13 are assembled in a direction perpendicular to the length direction of the main machine 1, and specifically, as shown in Figure 2 , the first shell 12 and the second shell 13 are assembled in an up-down manner to form a complete shell, of course, the first shell 12 and the second shell 13 can also be assembled in a left-right manner to form a shell, which is not limited herein.

[0056] It should be noted that in the utility model, the first shell 12 and the second shell 13 can be fixed by the clamping fixing mode completely, and can be fixed by the clamping fixing and other modes together to improve the fixing stability. That is to say, the first shell 12 and the second shell 13 have multiple fixing positions, at least one of which is clamped and fixed by the clamping structure and the matching structure, for example, part of the position is clamped and fixed, and part of the position is fixed by the first fastener 5 such as a screw. Among them, the clamping structure and the matching structure can be clamped and fixed as the main fixing mode of the first shell 12 and the second shell 13, and can be used as an auxiliary fixing mode, which is not limited here.

[0057] In addition, the utility model does not limit the setting position of the clamping structure and the matching structure, which can be set at the weak connection position of the first shell 12 and the second shell 13, and can be multiple and set along the circumference of the first shell 12 and the second shell 13.

[0058] As a preferred embodiment, as shown in Figure 2 、 Figure 5 、 Figure 6 The clamping structure includes the first clamping part 122 arranged at one end of the first shell 12 along the length direction of the first shell 12, and the second clamping part 124 arranged at the other end of the first shell 12, and the matching structure includes the first matching part 132 arranged corresponding to the first clamping part 122, and the second matching part 133 arranged corresponding to the second clamping part 124.

[0059] The first clamping part 122 and the second clamping part 124 are located at both ends of the first shell 12 along the length direction, and are clamped and fixed with the corresponding first matching part 132 and the second matching part 133 respectively, not only realizing the fixing of the first shell 12 and the second shell 13 at both ends along the length direction, but also strengthening the connection stability of the end part which is easy to deform or loosen, and because it is arranged at the end part, the first clamping part 122 and the second clamping part 124 can be arranged on the outside of the first shell 12 (the side away from the mounting cavity 14), and similarly, the first matching part 132 and the second matching part 133 can also be arranged on the outside of the second shell 13, so that when assembling, the assembler can directly see the position of each clamping structure, so that the clamping and fixing can be completed more easily, the assembly difficulty is further reduced, and the assembly efficiency is improved.

[0060] In the embodiment, the first clamping part 122 and the first matching part 132, and the second clamping part 124 and the second matching part 133 can be directly clamped and fixed, or can be clamped and fixed through other clamping components. Specifically, in a preferred embodiment, as shown in Figure 2 、 Figure 5 、 Figure 8 、 Figure 9As shown, the first clamping portion 122 comprises a first clasp structure, the first matching portion 132 comprises a second clasp structure, the first clasp structure and the second clasp structure are clamped and matched, at least one of the second clamping portion 124 and the second matching portion 133 is provided with a clamping groove 1243, and the breathing machine further comprises a clamping piece 4 which is clamped and matched with the clamping groove 1243 to fix

[0061] The second clamping portion 124 and the second matching portion 133.

[0062] As shown in the drawings, Figure 2 、 Figure 5 、 Figure 8 、 Figure 9 As shown, the first clasp structure and the second clasp structure can be directly buckled to complete the fixing, and the second clamping portion 124 and the second matching portion 133 are clamped and fixed by the clamping piece 4. Specifically, as shown in the drawings, Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 The clamping piece 4 is a clamp, and after the second clamping portion 124 and the second matching portion 133 are spliced, the clamping piece 4 is clamped on both sides, so as to clamp and fix the second clamping portion 124 and the second matching portion 133.

[0063] Specifically, the first clasp structure and the second clasp structure can both be protruding clasps, or one of them is a protruding clasp and the other is a clasp groove or a clamping port, so that the clasp is inserted into the groove or the port to complete the clamping.

[0064] Further, as shown in the drawings, Figure 3 、 Figure 4 、 Figure 6 At least one of the second clamping portion 124 and the second matching portion 133 is provided with a clamping groove 1243, and the clamping piece 4 is clamped in the clamping groove 1243, so as to keep stable connection and avoid the clamping piece 4 from slipping off.

[0065] Preferably, as shown in the drawings, Figure 2 to Figure 4 The second clamping portion 124 is located below the second matching portion 133, and the top surface of the second matching portion 133 and the bottom surface of the second clamping portion 124 are both provided with the clamping groove 1243, so that the clamping piece 4 is clamped in the clamping groove 1243 from top to bottom. Of course, the clamping groove 1243 can be provided only on the bottom surface of the second clamping portion 124 or the top surface of the second matching portion 133, so that the clamping piece 4 is clamped in the clamping groove 1243 only at one end, and the other end directly abuts against the end surface of the second matching portion 133 or the second clamping portion 124.

[0066] As shown in the drawings, Figure 2 to Figure 4As shown, the second clamping portion 124 comprises a first protruding rib 1241 protruding outward along the length direction of the main machine 1, and the second matching portion 133 also comprises a second protruding rib 1331 protruding outward along the length direction of the main machine 1, one of the opposite sides of the first protruding rib 1241 and the second protruding rib 1331 is provided with a plug-in protrusion 1332, and the other is provided with a plug-in slot 1242, so that the two are plugged together, and the clamping piece 4 tightly fixes the first protruding rib 1241 and the second protruding rib 1331 from the outside.

[0067] Preferably, as Figure 2 、 Figure 5 、 Figure 8 、 Figure 9 As shown, the inner wall of one of the first shell 12 and the second shell 13 is provided with a positioning groove 121, and the other is provided with a positioning protruding rib 131 extending into the positioning groove 121, one of the first clamping portion 122 and the first matching portion 132 is arranged on the inner wall of the positioning groove 121, and the other is arranged on the outer wall of the positioning protruding rib 131.

[0068] The positioning groove 121 and the positioning protruding rib 131 can play a positioning role in the assembly of the first shell 12 and the second shell 13, and improve the positional accuracy of the two. At the same time, the first clamping portion 122 and the first matching portion 132 are located at the matching position of the positioning protruding rib 131 and the positioning groove 121, so that after the positioning protruding rib 131 and the positioning groove 121 complete positioning, the first clamping portion 122 and the first matching portion 132 also complete alignment or clamping. Therefore, when assembling the first shell 12 and the second shell 13, only the positioning protruding rib 131 and the positioning groove 121 are matched, and the first clamping portion 122 and the first matching portion 132 can be clamped at the same time. And the volume of the positioning protruding rib 131 and the positioning groove 121 is larger than that of the first clamping portion 122 and the first matching portion 132, so that the operation of the assembler is more simple, and the assembly efficiency is improved. The positioning groove 121 and the positioning protruding rib 131 can play a positioning role in the assembly of the first shell 12 and the second shell 13, and improve the positional accuracy of the two. At the same time, the first clamping portion 122 and the first matching portion 132 are located at the matching position of the positioning protruding rib 131 and the positioning groove 121, so that after the positioning protruding rib 131 and the positioning groove 121 complete positioning, the first clamping portion 122 and the first matching portion 132 also complete alignment or clamping. Therefore, when assembling the first shell 12 and the second shell 13, only the positioning protruding rib 131 and the positioning groove 121 are matched, and the first clamping portion 122 and the first matching portion 132 can be clamped at the same time. And the volume of the positioning protruding rib 131 and the positioning groove 121 is larger than that of the first clamping portion 122 and the first matching portion 132, so that the operation of the assembler is more simple, and the assembly efficiency is improved.

[0069] Specifically, in one embodiment, as Figure 2 ,Figure 5 As shown, the first outer shell 12 is located below the second outer shell 13. A positioning groove 121 is disposed on the inner wall of the first outer shell 12, and a positioning rib 131 protrudes downwards from the lower edge of the second outer shell 13 to extend into the positioning groove 121. The positioning groove 121 extends along the length of the main unit 1, and multiple first locking portions 122 are spaced apart along the length of the main unit 1. This achieves multi-point fixing and improves fixing stability.

[0070] Specifically, such as Figure 5 As shown, the first outer shell 12 has positioning grooves 121 on both sides along the width direction, and a first snap-fit ​​part 122 is provided in the positioning grooves 121 on both sides.

[0071] This embodiment does not limit the formation method of the positioning groove 121. In one embodiment, such as Figure 2 , Figure 5 , Figure 8 As shown, the inner wall of the first outer shell 12 or the second outer shell 13 is provided with limiting ribs 123, which form a positioning groove 121. Taking the positioning groove 121 provided in the first outer shell 12 as an example, Figure 5 , Figure 8 As shown, the positioning groove 121 can be formed by protruding the limiting rib 123 on the inner wall of the first outer shell 12, or the positioning groove 121 can be formed by partially recessing the first outer shell 12. No limitation is made here.

[0072] like Figure 5 , Figure 8 As shown, the positioning groove 121 is located below the positioning rib 131, and the top of the positioning groove 121 has a passage for the positioning rib 131 to enter and exit.

[0073] In a preferred embodiment, such as Figure 2 , Figure 5 As shown, one edge of the first outer shell 12 and the second outer shell 13 is provided with a limiting rib 1211, and the other edge of the two is provided with a limiting groove 136 that is inserted and engaged with the limiting rib 1211.

[0074] The limiting rib 1211 and the limiting groove 136 cooperate to align and position the edges of the first outer shell 12 and the second outer shell 13, improving the relative positional accuracy of the first outer shell 12 and the second outer shell 13, thereby facilitating subsequent assembly. In one embodiment, such as Figure 5 As shown, the first outer shell 12 is the bottom shell, located below the second outer shell 13, and the two fit together to form the main unit 1. The edge of the first outer shell 12 is provided with an upwardly protruding limiting rib 1211, and the edge of the second outer shell 13 is provided with a limiting groove 136 that engages with the limiting rib 1211.

[0075] As a preferred embodiment of this utility model, such asFigure 8 , Figure 10 As shown, the first housing 12 has a fixing channel 1291, the second housing 13 has a fixing hole, and the ventilator also includes a first fastener 5, which passes through the fixing channel 1291 and is fastened to the fixing hole.

[0076] After the first outer shell 12 and the second outer shell 13 are fixed by snap-fit, they are fastened together by the first fastener 5, which strengthens the connection between the two and improves the connection stability. Not only does the connection stability of the first outer shell 12 and the second outer shell 13 be improved by the dual method of snap-fit ​​and fastening by the first fastener 5, but it can also significantly reduce the number of first fasteners 5 used, saving costs and reducing assembly difficulty.

[0077] Preferably, the first fastener 5 is a screw.

[0078] like Figure 8 As shown, the snap-fit ​​structures are disposed at both ends of the first housing 12 along the length direction of the first housing 12, and the fixing channel 1291 is located between the two snap-fit ​​structures.

[0079] The snap-fit ​​structures are located at both ends of the first housing 12, and the mating structures are correspondingly located at both ends of the second housing 13. This allows the snap-fit ​​structures and mating structures to be positioned on the outer sides of the first housing 12 and the second housing 13 (the side facing away from the mounting cavity 14), making it easier for assemblers to see the location of each snap-fit ​​structure and thus facilitating snap-fit ​​fixing. Between the two ends of the main unit 1, the first fastener 5 is used for fixing, strengthening the fixing strength of the first housing 12 and the second housing 13 in the middle part of the main unit 1.

[0080] Specifically, such as Figure 7 As shown, the outer surface of the first housing 12 is provided with a receiving groove 128, and the fixing channel 1291 is located in the receiving groove 128.

[0081] The receiving groove 128 can not only store the head of the first fastener 5, preventing the first fastener 5 from protruding excessively from the outer surface of the first outer shell 12, thus ensuring that the ventilator can be placed more stably on the table, but also effectively shorten the distance between the first outer shell 12 and the second outer shell 13, thereby reducing the length of the first fastener 5 and saving costs.

[0082] Specifically, such as Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, the accommodating recess 128 has a fixing column 129 protruding into the mounting cavity 14, and a fixing channel 1291 is arranged inside the fixing column 129; the second shell also has a matching column 135 extending into the mounting cavity 14, and a fixing hole is arranged on the matching column 135; and the first fastener 5 is inserted into the fixing channel 1291 to be fastened with the matching column 135.

[0083] Preferably, the accommodating recess 128 is arranged on the bottom surface of the first shell 12, and the fixing channel 1291 extends vertically upward, so that the accommodating recess 128 and the first fastener 5 can be hidden when the breathing machine is placed on the table, thereby improving the appearance. Figure 5 、 Figure 7 As shown, the bottom surface of the first shell 12 is provided with a support part 125 protruding downward, so that the breathing machine can be placed stably. The accommodating recess 128 is arranged on the support part 125.

[0084] As a preferred embodiment of the utility model, as shown in the drawings, Figure 6 、 Figure 11 、 Figure 12 As shown, one end of the first shell 12 is provided with a first end surface 126, and one end of the second shell 13 is provided with a second end surface 134; the first end surface 126 and the second end surface 134 cooperate to form a mounting end surface 15; the breathing machine further comprises a side cover 3 fixed to the mounting end surface 15, and the side cover 3 and the main machine 1 are provided with a sealing element.

[0085] The side cover 3 is fixed to the end of the main machine 1, which not only can hide the connecting structure of the end of the first shell 12 and the second shell 13 and the components inside the main machine 1, thereby improving the appearance of the whole machine, but also can cooperate with the first shell 12 and the second shell 13 to form part of the air inlet duct inside the main machine 1 due to the sealing cooperation between the side cover 3 and the main machine 1. The sealing element is arranged between the side cover 3 and the main machine 1 and deforms under the extrusion of the two, thereby sealing the gap between the two. Meanwhile, the first end surface 126 and the second end surface 134 are spliced to form the mounting end surface 15, which also facilitates the installation of the side cover 3.

[0086] The embodiment does not limit the fixing mode of the side cover 3 and the main machine 1, and preferably, as shown in the drawings, Figure 6 、 Figure 11 The first shell 12 is provided with a plug-in part 127, and the side cover 3 is provided with a fixing part 31; after the plug-in part 127 and the fixing part 31 are plug-in matched, the side cover 3 can rotate around the matching part; when the side cover 3 is rotated to the position of covering the end of the main machine 1, the side cover 3 and the main machine 1 are locked by a second fastener such as a screw. Specifically, a mounting column 16 can be arranged inside the main machine 1, and a mounting hole 32 is correspondingly arranged on the side cover 3. In this way, the side cover 3 is fixed with at least two of the components inside the main machine 1, the first shell 12 and the second shell 13, thereby improving the stability of the overall structure.

[0087] Of course, the plug-in part 127 can also be arranged on the second housing 13, which is not limited here.

[0088] Specifically, as shown in Figure 10 、 Figure 11 , the side cover 3 is provided with a storage card plug-in position 36, and the end cover 37 is detachably connected at the storage card plug-in position 36. The end cover 37 is detachably connected to the side cover 3 to be able to shield the storage card plug-in position 36, and the mounting hole 32 is arranged in the storage card plug-in position 36.

[0089] Preferably, as shown in Figure 11 , the side cover 3 is provided with a matching rib 35, and the main machine 1 is provided with a matching groove 1333, which are plug-in matched. Preferably, as shown in Figure 4 、 Figure 11 、 Figure 12 , the matching groove 1333 is arranged on the second matching part 133. Of course, the matching groove can also be arranged on the side cover 3, and the matching rib is arranged on the main machine 1. By arranging the matching rib 35 and the matching groove 1333, the relative position of the side cover and the main machine is further limited, and the fixation between them is ensured.

[0090] Preferably, as shown in Figure 11 、 Figure 12 , the ventilator further comprises a transmission circuit board 6, and the side cover 3 is provided with a fixing rib 33 on the side facing the main machine 1. The fixing rib 33 surrounds a mounting position 332 for mounting the transmission circuit board 6, and the fixing rib 33 has a clamping hook 34 for clamping and fixing the transmission circuit board 6.

[0091] The transmission circuit board 6 is a data transmission module of the ventilator. The fixing rib 33 surrounds the mounting position 332 for mounting the transmission circuit board 6 on the side cover 3, which can prompt the assembly personnel to quickly and accurately install the transmission circuit board 6 in place. The clamping hook 34 is used to fix the transmission circuit board 6, which facilitates the installation and disassembly of the transmission circuit board 6, and does not need to process a fixing structure on the transmission circuit board 6, reducing the processing difficulty.

[0092] As shown in Figure 11 、 Figure 12 , the clamping hook 34 is located on both sides of the mounting position 332, and the transmission circuit board 6 is provided with an avoiding notch corresponding to the two sides. The clamping hook 34 passes through the avoiding notch to be clamped with the mouth of the avoiding notch.

[0093] In one embodiment, as shown in Figure 12 , a supporting rib 331 is protruded in the mounting position 332, and the supporting rib 331 is used to support the transmission circuit board 6, so that the transmission circuit board 6 has a heat dissipation gap with the side cover 3.

[0094] The support rib 331 supports the transmission circuit board 6 so that the transmission circuit board 6 does not contact the side cover 3, thereby improving the heat dissipation effect and reducing the heat transferred from the transmission circuit board 6 to the side cover 3, so that the side cover 3 maintains a lower temperature and the user has a better touch feeling when touching the side cover 3. The clamping of the clamping hook 34 and the support rib 331 on both sides also improves the fixing stability of the transmission circuit board 6 and reduces the shaking.

[0095] In an embodiment, as shown in Figure 11 、 Figure 12 At least part of the fixing rib 33 constitutes the support rib 331, which abuts against the side of the transmission circuit board 6 facing the side cover 3.

[0096] As a preferred embodiment, the installation method of the breathing machine shell is as follows: after aligning the first shell 12 and the second shell 13, the first clamping part 122 and the first matching part 132 are clamped and matched, the second clamping part 124 and the second matching part 133 are clamped and matched, the pre-fixing of the first shell 12 and the second shell 13 is completed, and then the first shell 12 and the second shell 13 are fixed through the first fastener 5; then the side cover 3 is installed, the fixing part 31 on the side cover 3 is inserted and matched with the insertion part 127, then the side cover 3 is rotated around the matching part, and when the side cover 3 is rotated to the position covering the end of the host 1, the side cover 3 is locked with the host 1 through the second fastener such as a screw.

[0097] The parts not described in the utility model can be realized by using or referring to the existing technology.

[0098] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the differences from other embodiments.

[0099] The above only describes the embodiments of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the claim range of the utility model.

Claims

1. A breathing machine comprising a main machine having a receiving cavity and a humidification assembly, at least a partial region of the humidification assembly being capable of being received in the receiving cavity, characterized in that, the main machine comprises a first casing and a second casing, the first casing and the second casing cooperatively forming a mounting cavity in which a fan assembly and an air inlet duct are arranged; the first casing is provided with a clamping structure, and the second casing is provided with a matching structure clamped and matched with the clamping structure, so that the first casing and the second casing are clamped and fixed.

2. The breathing machine according to claim 1, characterized in that, the clamping structure comprises a first clamping portion arranged at one end of the first casing along the length direction of the first casing, and a second clamping portion arranged at the other end of the first casing, and the matching structure comprises a first matching portion arranged corresponding to the first clamping portion, and a second matching portion arranged corresponding to the second clamping portion.

3. The breathing machine according to claim 2, characterized in that, the first clamping portion comprises a first buckle structure, the first matching portion comprises a second buckle structure, the first buckle structure and the second buckle structure are clamped and matched, and at least one of the second clamping portion and the second matching portion is provided with a clamping groove, and the breathing machine further comprises a clamping piece clamped and matched with the clamping groove to fix the second clamping portion and the second matching portion.

4. The breathing machine according to claim 2, characterized in that, an inner wall of one of the first casing and the second casing is provided with a positioning groove, and an inner wall of the other is provided with a positioning protrusion extending into the positioning groove, one of the first clamping portion and the first matching portion is arranged on the inner wall of the positioning groove, and the other is arranged on the outer wall of the positioning protrusion.

5. The breathing machine according to claim 4, characterized in that, an inner wall of the first casing or the second casing is provided with a limiting rib, and the limiting rib encloses the positioning groove.

6. The breathing machine according to claim 1, characterized in that, an edge of one of the first casing and the second casing is provided with a limiting protrusion, and an edge of the other is provided with a limiting groove inserted and matched with the limiting protrusion.

7. The breathing machine according to claim 1, characterized in that, the first casing has a fixing channel, the second casing has a fixing hole, and the breathing machine further comprises a first fastener fastened and connected through the fixing channel and the fixing hole.

8. The breathing machine according to claim 7, characterized in that, the clamping structure is arranged at both ends of the first casing along the length direction of the first casing, and the fixing channel is located between the two clamping structures.

9. The breathing machine according to claim 1, characterized in that, one end of the first casing is provided with a first end face, and one end of the second casing is provided with a second end face, the first end face and the second end face cooperatively forming a mounting end face, the breathing machine further comprises a side cover fixed to the mounting end face, and the side cover and the main machine have a sealing piece therebetween. 10.The ventilator of claim 9, wherein one of the first housing and the second housing is provided with a plug-in portion, and the side cover is provided with a fixing portion capable of cooperating with the plug-in portion. 11.The ventilator of claim 10, wherein the side cover is provided with a mounting hole, the main machine is provided with a mounting column, and the ventilator comprises a second fastener penetrating through the mounting hole and the mounting column to fix the side cover and the main machine. 12.The ventilator of claim 9, wherein the ventilator further comprises a transmission circuit board, a side of the side cover facing the main machine is provided with a fixing rib, the fixing rib encloses a mounting position for mounting the transmission circuit board, and the fixing rib is provided with a clamping hook clamping and fixing the transmission circuit board.

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