A blower support structure for a breathing machine

Abstract

The utility model discloses a fan support structure of breathing machine, it adopts flexible material integrated moulding, including fan storehouse inside main part (4.1), air passage partition wall (4.2) and sound attenuation chamber wall (4.3), fan storehouse inside main part (4.1) is located in the fan storehouse under the assembly state, air passage partition wall (4.2) and sound attenuation chamber wall (4.3) are located outside fan storehouse (7) under the assembly state, fan storehouse (7) inside main part (4.1) is used for supporting, positioning fan body, air passage partition wall (4.2) is used for forming the upstream air inlet channel (8) of upper and lower superposition, sound attenuation chamber wall (4.3) is not only as the part lateral wall of downstream air inlet channel (9), but also as the part lateral wall of sound attenuation chamber (10), sound attenuation chamber wall (4.3) has through -hole (4.3.1). The utility model not only is favorable for reducing the noise, and greatly simplifies assembly technology.

Description

Technical Field

[0001] This utility model relates to a fan support structure for a ventilator, belonging to the field of ventilator technology. Background Technology

[0002] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used in respiratory failure caused by various reasons, anesthetic respiratory management during major surgery, respiratory support therapy, and emergency resuscitation, occupying a very important position in the field of modern medicine. A ventilator is a crucial medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

[0003] The fan support structure of existing ventilators is usually made of flexible materials and is almost entirely located inside the fan housing, serving only to reduce vibration and noise, such as the sound-absorbing cotton structure described in Chinese utility model patent (CN221462608U). If flexible materials are also needed to form a cavity or channel on the outside of the fan housing, a separate flexible material often needs to be installed outside the fan housing, which increases the difficulty of ventilator assembly. Utility Model Content

[0004] In order to reduce the noise generated by airflow inside the ventilator, simplify the assembly process, and improve the user experience, this utility model provides a fan support structure for a ventilator, the specific technical solution of which is as follows.

[0005] A fan support structure for a ventilator, integrally molded from a flexible material, is characterized by comprising a main body inside the fan compartment, an airway partition wall, and an anechoic chamber wall. The main body inside the fan compartment is located inside the fan compartment in the assembled state; the airway partition wall and the anechoic chamber wall are located outside the fan compartment in the assembled state.

[0006] The main body of the fan compartment is used to support and position the fan body; the air duct partition wall is used to form an upper and lower stacked upstream air intake channel; the anechoic chamber wall serves as part of the side wall of the downstream air intake channel and part of the side wall of the anechoic chamber, and the anechoic chamber wall has through holes.

[0007] Furthermore, the main body of the fan compartment has a ventilation channel, which connects the upper and lower surfaces of the main body of the fan compartment.

[0008] Furthermore, the main body of the wind turbine housing has a receiving groove corresponding to the wind turbine body.

[0009] Furthermore, it also includes a wind resistance tube positioning part, which has a wind resistance tube mounting hole.

[0010] Furthermore, the air resistance pipe positioning part also has a pressure sampling channel, which is located near the air resistance pipe mounting hole. The pressure sampling channel includes a first pressure sampling channel and a second pressure sampling channel. The first pressure sampling channel is located above the air resistance pipe mounting hole, and the second pressure sampling channel is located below the air resistance pipe mounting hole.

[0011] Preferably, the flexible material is at least one of silicone, TPE, TPR, polyurethane, chloroprene rubber, polypropylene, fluororubber, polysulfide rubber or nitrile rubber.

[0012] Compared with the prior art, the air duct partition wall and the anechoic chamber wall located outside the fan compartment enable the fan support structure to have more functions, which not only helps to reduce noise, but also greatly simplifies the assembly process. Attached Figure Description

[0013] Figure 1 This is an exploded view of the ventilator of this utility model;

[0014] Figure 2 This is a schematic diagram of the ventilator base;

[0015] Figure 3 This is a bottom view of the wind turbine nacelle cover;

[0016] Figure 4 This is a schematic diagram (top view) of the fan vibration damping and noise reduction components;

[0017] Figure 5 This is a schematic diagram of the fan vibration damping and noise reduction components (viewed from below);

[0018] Figure 6 This is a longitudinal cross-sectional view of the ventilator;

[0019] Figure 7 yes Figure 6 A schematic diagram of airflow in cross-sectional view;

[0020] Figure 8 This is another longitudinal cross-sectional view of the ventilator.

[0021] In the diagram: 1. Ventilator top cover; 2. Ventilator base; 2.1. Air inlet; 2.2. Air guide strip; 3. Humidifier; 4. Fan support structure; 4. Main body of the fan compartment; 4.1. Airway partition wall; 4.2. Silencer wall; 4.3. Through hole; 4.3.1. Air passage; 4.4. Receiving groove; 4.5. Air resistance tube positioning part; 4.6. Air resistance tube mounting hole; 4.7. Pressure sampling channel; 4.8. First pressure sampling channel; 4.8.1. Second pressure sampling channel; 4.8.2. Fan compartment top cover; 5. Fan compartment side wall; 5.1. Connecting hole; 5.2. Fan body; 6. Fan compartment; 7. Upper chamber of the fan compartment; 7.1. Lower chamber of the fan compartment; 7.2. Upstream air inlet channel; 8. Downstream air inlet channel; 9. Silencer; 10. Air resistance tube; 11. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] See Figures 1-7 The ventilator includes a ventilator cover 1, a ventilator base 2, and a humidifier 3. A fan support structure 4, a fan chamber cover 5, and a fan body 6 are provided between the ventilator cover 1 and the ventilator base 2.

[0024] The fan support structure 4 is integrally molded from flexible material and is sandwiched between the fan housing cover 1 and the ventilator base 2. The fan housing 7 is formed by the fan housing cover 1 and the ventilator base 2. The fan body 6 is supported and positioned by the fan support structure 4 and the fan housing cover 5. The fan body 6 is housed inside the fan housing 7. The fan support structure 4 includes the main body 4.1 inside the fan housing, the airway partition wall 4.2, and the anechoic chamber wall 4.3. The main body 4.1 inside the fan housing is located inside the fan housing 7 in the assembled state. The airway partition wall 4.2 and the anechoic chamber wall 4.3 are located outside the fan housing 7 in the assembled state.

[0025] An upper chamber 7.1 of the fan compartment is formed between the fan support structure 4 and the fan compartment cover 1, and a lower chamber 7.2 of the fan compartment is formed between the fan support structure 4 and the ventilator base 2. The fan support structure 4 has several ventilation channels 4.4, which connect the upper and lower surfaces of the main body part 4.1 inside the fan compartment, i.e., the ventilation channels 4.4 connect the upper chamber 7.1 and the lower chamber 7.2 of the fan compartment. The main body part 4.1 inside the fan compartment has a receiving groove 4.5 corresponding to the fan body 6. The fan support structure 4 provides flexible support for the fan body 6, which helps to reduce vibration and noise. Preferably, the flexible material is at least one of silicone, TPE, TPR, polyurethane, neoprene rubber, polypropylene, fluororubber, polysulfide rubber, or nitrile rubber.

[0026] The ventilator base 2 is provided with an air inlet 2.1. The air intake channel of the ventilator includes an upstream air intake channel 8 and a downstream air intake channel 9. The upstream air intake channel 8 is connected to the air inlet 2.1. The upstream air intake channel 8 is an air intake channel stacked vertically. The downstream air intake channel 9 is connected to the upstream air intake channel 8. Both the upstream air intake channel 8 and the downstream air intake channel 9 are located on the periphery of the fan compartment 7.

[0027] The air duct partition wall 4.2 of the fan support structure 4 is located outside the fan housing 7, and it forms the upper and lower stacked upstream air intake channels 8. The upper channel of the upstream air intake channel 8 is located between the air duct partition wall 4.2 and the fan housing cover 1; the lower channel of the upstream air intake channel 8 is located between the air duct partition wall 4.2 and the ventilator base 2. In other words, the flexible air duct partition wall 4.2 serves as the intermediate partition wall for the upstream air intake channel 8, which not only simplifies the assembly process but also helps reduce noise.

[0028] The anechoic chamber wall 4.3 of the fan support structure 4 is located outside the fan housing 7. The anechoic chamber wall 4.3 and the fan housing cover 5 form the anechoic chamber 10. The anechoic chamber wall 4.3 has several through holes 4.3.1, through which the downstream air intake channel 9 and the anechoic chamber 10 are connected. The downstream air intake channel 9 is located between the anechoic chamber wall 4.3 and the ventilator base 2. The anechoic chamber wall 4.3 serves as part of the sidewall of the downstream air intake channel 9 and part of the sidewall of the anechoic chamber 10. The anechoic principle of the anechoic chamber 10 utilizes the Helmholtz resonant cavity principle. The design of the anechoic chamber wall 4.3 is beneficial for reducing noise and simplifies the assembly process.

[0029] The fan support structure 4 also includes a resistance tube positioning part 4.6, which has a resistance tube mounting hole 4.7, through which the resistance tube 11 is fixed. The resistance tube positioning part 4.6 also has a pressure sampling channel 4.8, which is located near the resistance tube mounting hole 4.7. The pressure sampling channel 4.8 includes a first pressure sampling channel 4.8.1 and a second pressure sampling channel 4.8.2. The first pressure sampling channel 4.8.1 is located above the resistance tube mounting hole 4.7, and the second pressure sampling channel 4.8.2 is located below the resistance tube mounting hole 4.7. The first pressure sampling channel 4.8.1 and the second pressure sampling channel 4.8.2 are used to install a differential pressure sensor (not shown) connected to a circuit board (not shown).

[0030] like Figure 7 As shown, the air intake sequence of the ventilator in this embodiment is as follows: external air enters the upstream intake channel 8 and the downstream intake channel 9 sequentially from the air inlet 2.1, then passes through the air resistance tube 11 into the fan compartment 7. The fan body 6 pressurizes the air and delivers it to the downstream humidifier 3 to increase humidity, and then discharges it to the outside of the ventilator. The main body 4.1 of the fan compartment of the fan support structure 4 reduces vibration and noise for the fan; the airway partition wall 4.2 forms the upstream intake channel 8 in a stacked state, extending the intake channel; the anechoic chamber wall 4.3 reduces noise for the downstream intake channel 9; and the air resistance tube positioning part 4.6 fixes the air resistance tube 11 and the differential pressure sensor. The one-piece molded fan support structure 4 is assembled by being clamped and installed between the ventilator base 2 and the fan compartment cover 5, which helps to reduce parts, simplify the assembly process, and achieve a better overall effect.

[0031] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention is not limited to the specific embodiments described above; these embodiments are merely illustrative and not limiting. Those skilled in the art, under the guidance of the present invention, can make many modifications without departing from the spirit and scope of the claims, and all such modifications fall within the protection scope of the present invention.

Claims

1. A blower support structure of a respirator, which is integrally formed using a flexible material, characterized in that, It includes the main body (4.1) inside the wind turbine compartment, the air duct partition wall (4.2) and the anechoic chamber wall (4.3). The main body (4.1) inside the wind turbine compartment is located inside the wind turbine compartment in the assembled state; the air duct partition wall (4.2) and the anechoic chamber wall (4.3) are located outside the wind turbine compartment (7) in the assembled state. The main body (4.1) inside the fan compartment (7) is used to support and position the fan body; the air duct partition wall (4.2) is used to form an upper and lower stacked upstream air intake channel (8); the anechoic chamber wall (4.3) serves as part of the side wall of the downstream air intake channel (9) and part of the side wall of the anechoic chamber (10), and the anechoic chamber wall (4.3) has a through hole (4.3.1).

2. A blower support structure for a breathing machine according to claim 1, wherein The main body (4.1) inside the fan compartment (7) has a ventilation channel (4.4), which connects the upper and lower surfaces of the main body (4.1) inside the fan compartment (7).

3. A blower support structure for a breathing machine according to claim 1, wherein The main body (4.1) inside the wind turbine compartment (7) has a receiving groove (4.5) corresponding to the wind turbine body.

4. The blower support structure of claim 1, wherein, It also includes a wind resistance tube positioning part (4.6), which has a wind resistance tube mounting hole (4.7).

5. A blower support structure for a breathing machine according to claim 4, wherein The wind resistance pipe positioning part (4.6) also has a pressure sampling channel (4.8), which is located near the wind resistance pipe mounting hole (4.7). The pressure sampling channel (4.8) includes a first pressure sampling channel (4.8.1) and a second pressure sampling channel (4.8.2). The first pressure sampling channel (4.8.1) is located above the wind resistance pipe mounting hole (4.7), and the second pressure sampling channel (4.8.2) is located below the wind resistance pipe mounting hole (4.7).

6. A blower support structure for a breathing machine according to claim 1, wherein The flexible material is made of at least one of silicone, TPE, TPR, polyurethane, chloroprene rubber, polypropylene, fluororubber, polysulfide rubber or nitrile rubber.

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