Energy-saving fan system and medical air purification device

Abstract

The invention discloses an energy-saving fan system and a medical air purification device. The energy-saving fan system comprises a main flow guide system and an auxiliary flow guide system. The main flow guiding system comprises a flow inlet area, a first flow guiding piece, a main flow guiding power piece, a second flow guiding piece, a flow outlet area, a range extending connecting piece and a purification opening and closing assembly, a first flow guiding cavity and a second flow guiding cavity are formed in the first flow guiding piece, and a third flow guiding cavity and a fourth flow guiding cavity are formed in the second flow guiding piece; the first flow guide part is provided with a first opening and a second opening, and the second flow guide part is provided with a third opening and a fourth opening; the main flow guiding power part is used for transmitting air in the first flow guiding part into the second flow guiding part; the flow guiding system is used for transmitting air to the flow inlet area or extracting air in the flow outlet area. By the adoption of the scheme, the energy-saving fan system and the medical air purification device can enable air to be directly conveyed upwards under high-speed flowing, and increase the air flowing stroke under low-speed flowing.

Description

Technical Field

[0001] The present invention belongs to the field of air purification devices, and particularly relates to an energy-saving fan system and a medical air purification device. Background Art

[0002] A medical air purification device is a device for aseptically storing medicine. Specifically, by placing the medicine in the air purification device and starting the fan, the air inside the air purification device is circulated internally, so that the air passes through filters such as activated carbon to purify the air.

[0003] Among them, the air purification device has an open state and a closed state.

[0004] In the open state, the operator can operate the medicine inside the air purification device to take and place the medicine. And in the open state, the air purification device is widely connected to the outside world, so it is necessary to increase the fan operation speed to purify the air faster to ensure the air quality inside the air purification device. In addition, to ensure that the air smoothly passes through the filter, the air is guided to pass through the filter along the thickness direction of the filter, so as to use the plane where the largest length and width of the filter are located as the inlet and outlet surface and the shortest thickness direction as the air flow direction to achieve the purification efficiency.

[0005] In the closed state, since the inside of the air purification device is relatively closed, so that less or even no air enters the air purification device from the outside, thus the fan only needs to run at a low speed. Similarly, the air passes through the filter along the thickness direction of the filter for purification.

[0006] Since the main state of the air purification device is the closed state, therefore, the main energy consumption of the air purification device is the energy consumed by the fan operation in the closed state. Among them, in order to make the air flowing at a high speed in the open state smoothly pass through the filter, the air passes through the filter along the thickness direction of the filter. However, in the closed state, the fan is in a low-speed operation state, so that using the air to pass through the filter along the thickness direction will result in a short time for the air to pass through the filter and poor purification effect. To solve the foregoing problems, the operation speed of the fan is usually appropriately increased to accelerate the air flow to increase the volume of air filtered by the filter per unit time to improve the purification effect. However, relatively increasing the operation speed of the fan will lead to an increase in energy consumption. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an energy-saving fan system and a medical air purification device that can directly transmit the air upward under high-speed flow and increase the air flow travel under low-speed flow.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] 1. An energy-saving fan system, comprising a main flow guide system and a secondary flow guide system; the main flow guide system comprises an inlet area, a first flow guide, a main flow guide power part, a second flow guide and an outlet area arranged in sequence along a first direction, the thickness direction of the first flow guide and the second flow guide are along the first direction, a first flow guide cavity and a second flow guide cavity are arranged in the first flow guide, the first flow guide cavity and the second flow guide cavity are in the shape of a long strip extending in the length direction of the first flow guide, a third flow guide cavity and a fourth flow guide cavity are arranged in the second flow guide, the third flow guide cavity and the fourth flow guide cavity are in the shape of a long strip extending in the length direction of the second flow guide; the main flow guide system comprises an extended-range connector connecting the inlet area, the first flow guide cavity, the second flow guide cavity, the third flow guide cavity, the fourth flow guide cavity and the outlet area in sequence; the first flow guide The flow member is provided with a first opening and a second opening at both ends along the first direction, the first opening is used to connect the first flow guide chamber and the second flow guide chamber to the inlet area, the second opening is used to connect the first flow guide chamber and the second flow guide chamber to the main flow power member, and the second flow guide member is provided with a third opening and a fourth opening at both ends along the first direction, the third opening is used to connect the third flow guide chamber and the fourth flow guide chamber to the main flow power member, and the fourth opening is used to connect the third flow guide chamber and the fourth flow guide chamber to the outlet area; the main flow system includes a purification opening and closing component for opening and closing the first opening, the second opening, the third opening and the fourth opening; the main flow power member is used to transfer the air in the first flow guide member to the second flow guide member; the secondary flow guide system is used to transfer air toward the inlet area or to extract the air in the outlet area.

[0010] The present invention is further configured such that: the number of the secondary flow guiding systems is multiple, and each of the secondary flow guiding systems is used to transmit air toward the inlet area.

[0011] The present invention is further configured as follows: the slave flow guide system includes a third flow guide member, a slave flow guide power member and a fourth flow guide member arranged in sequence along a first direction, and the fourth flow guide member is away from one end of the slave flow guide power member toward the flow inlet area, the thickness direction of the third flow guide member and the fourth flow guide member is along the first direction, and the slave flow guide power member is used to transfer the air in the third flow guide member to the fourth flow guide member.

[0012] The present invention is further configured as follows: a fifth opening for connecting the internal space of the fourth guide member and the flow inlet area is provided at one end of the thickness of the fourth guide member, and a non-return flap is provided at one end of the fourth guide member facing the flow inlet area, and the non-return flap is used to open the fifth opening when the slave guide power member is working and to close the fifth opening when the slave guide power member is not working.

[0013] The present invention is further configured as follows: The purification opening and closing assembly includes a first opening and closing plate, a second opening and closing plate, a third opening and closing plate, a fourth opening and closing plate, and a lifting device. A first misaligned opening is provided on the first opening and closing plate, which is misaligned with the first opening. A second misaligned opening is provided on the second opening and closing plate, which is misaligned with the second opening. A third misaligned opening is provided on the third opening and closing plate, which is misaligned with the third opening. A fourth misaligned opening is provided on the fourth opening and closing plate, which is misaligned with the fourth opening. The lifting device is used to drive the first opening and closing plate, the second opening and closing plate, the third opening and closing plate, and the fourth opening and closing plate to lift and lower.

[0014] The present invention is further configured as follows: The number of the first opening, the second opening, the third opening, and the fourth opening is multiple, and they are arranged in a matrix; the number of the first misaligned opening, the second misaligned opening, the third misaligned opening, and the fourth misaligned opening is multiple, and they are arranged in a matrix.

[0015] A medical air purification device includes a medicine storage cabinet. A medicine storage chamber, a purification chamber, and a reflux area are provided in the medicine storage cabinet. A cabinet door for opening and closing the medicine storage chamber is provided on the medicine storage cabinet. The above-mentioned energy-saving fan system is provided in the purification chamber; the energy-saving fan system is used to extract the air in the medicine storage chamber to the purification chamber for purification. The air in the purification chamber flows to the reflux area, and then flows from the reflux area to the medicine storage chamber to form an air flow cycle.

[0016] The present invention is further configured as follows: The number of the medicine storage chambers is multiple, and each medicine storage chamber is separately arranged.

[0017] The present invention is further configured as follows: The medicine storage cabinet is provided with an air outlet communicating the purification chamber with the outside of the medicine storage cabinet; the medicine storage cabinet is provided with an air outlet opening and closing assembly for opening and closing the air outlet.

[0018] The present invention is further configured as follows: An air inlet is provided on the cabinet door. The air inlet is used to communicate the purification chamber with the outside of the medicine storage cabinet when the cabinet door closes the purification chamber; an air inlet opening and closing assembly for opening and closing the air inlet is provided on the cabinet door; the cabinet door has a first state and a second state when closing the purification chamber. In the first state, the air inlet opening and closing assembly closes the air inlet, and in the second state, the air inlet opening and closing assembly opens the air inlet.

[0019] By adopting the above technical solutions:

[0020] 1. Filter substances or filters can be respectively arranged in the first diversion cavity, the second diversion cavity, the third diversion cavity, and the fourth diversion cavity, and can be divided into high-speed diversion and low-speed diversion according to actual situations.

[0021] 2. When high-speed diversion is required, the first opening, the second opening, the third opening, and the fourth opening are opened by the operation of the purification opening and closing assembly. Then, the secondary diversion system and the main diversion power component can be started so that the secondary diversion system transmits air upward into the inflow area. The air entering the inflow area passes upward through the first opening and into the first diversion component, through the second opening and into the main diversion system, through the third opening and into the second diversion component, and through the fourth opening and into the outflow area under the dual power action of the secondary diversion system and the main diversion power component. When passing upward through the first diversion component and the second diversion component, the air contacts the filtering substances or filters in the first diversion component for the first-stage filtration and contacts the filtering substances or filters in the second diversion component for the first-stage filtration, achieving efficient and rapid filtration of the air to ensure air quality. Moreover, the air is transmitted along the thickness direction of the first diversion component and the second diversion component, so that the plane with the largest length and width in the first diversion component and the second diversion component is used as the inlet and outlet surface, and the shortest thickness direction is used as the air flow direction to ensure smooth air passage.

[0022] 3. When low-speed diversion is required, the first opening, the second opening, the third opening, and the fourth opening are closed by the operation of the purification opening and closing assembly. Then, only the secondary diversion system operates at a low speed so that the secondary diversion system transmits air upward into the inflow area. Since the first opening, the second opening, the third opening, and the fourth opening are all closed, the air entering the inflow area passes successively through the first diversion cavity, the second diversion cavity, the third diversion cavity, and the fourth diversion cavity connected by the range extender connector under the power action of the secondary diversion system and finally enters the outflow area. When passing through the first diversion component and the second diversion component, the air contacts the filtering substances or filters in the first diversion cavity for the first-stage filtration, contacts the filtering substances or filters in the second diversion cavity for the first-stage filtration, contacts the filtering substances or filters in the third diversion cavity for the third-stage filtration, and contacts the filtering substances or filters in the fourth diversion cavity for the fourth-stage filtration, increasing the travel of the air through the filtering substances or filters and improving the filtration effect of the air passing through the fan system once. In addition, it should be noted that since the air flows at a low speed, the air can also smoothly pass through the first diversion cavity, the second diversion cavity, the third diversion cavity, and the fourth diversion cavity with a smaller flow cross-section in the left-right direction. After meeting the purification requirements, the operation of the secondary diversion system can be further reduced to reduce the energy consumption in the low-speed diversion state. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is the assembly drawing of the first embodiment of the present invention;

[0025] Figure 2 It is the exploded view of the first embodiment of the present invention;

[0026] Figure 3 It is the cross-sectional view of the first embodiment of the present invention;

[0027] Figure 4 It is the cross-sectional view of the first embodiment of the present invention;

[0028] Figure 5 It is the assembly drawing of the main flow guiding system in the first embodiment of the present invention;

[0029] Figure 6 It is the assembly drawing of the main flow guiding system in the first embodiment of the present invention;

[0030] Figure 7 It is the exploded view of the main flow guiding system in the first embodiment of the present invention;

[0031] Figure 8 It is the exploded view of the main flow guiding system in the first embodiment of the present invention;

[0032] Figure 9 It is the partial structure assembly drawing of the related structure of the rotating rod in the first embodiment of the present invention;

[0033] Figure 10 It is the partial structure assembly drawing of the related structure of the first spiral member, the second spiral member, and the fitting in the first embodiment of the present invention;

[0034] Figure 11 It is the partial structure assembly drawing of the related structure of the first spiral member, the second spiral member, and the fitting in the first embodiment of the present invention;

[0035] Figure 12 It is the assembly drawing of the cabinet door in the closed state in the second embodiment of the present invention;

[0036] Figure 13 It is the assembly drawing of the cabinet door in the opened state in the second embodiment of the present invention;

[0037] Figure 14 It is the cross-sectional view of the second embodiment of the present invention;

[0038] Figure 15This is a partial structural assembly drawing of the air outlet opening and closing component related structure in the second embodiment of the present invention;

[0039] Figure 16 This is a partial structural assembly drawing of the second embodiment of the present invention in the first state;

[0040] Figure 17 This is a partial structural assembly drawing of the second embodiment of the present invention in the second state;

[0041] Figure 18 This is an exploded view of a partial structure related to the connection component in the second embodiment of the present invention.

[0042] Explanation of reference numerals:

[0043] 1, Main flow guiding system;

[0044] 11, Inflow area; 12, First flow guiding member; 13, Main flow guiding power member; 14, Second flow guiding member; 15, Outflow area; 16, Range extension connecting member; 17, Purification opening and closing component;

[0045] 121, First flow guiding cavity; 122, Second flow guiding cavity; 123, First opening; 124, Second opening;

[0046] 131, Lower cover body; 132, Upper cover body; 133, Power blower;

[0047] 141, Third flow guiding cavity; 142, Fourth flow guiding cavity; 143, Third opening; 144, Fourth opening;

[0048] 161, First connecting member; 162, Second connecting member; 163, Third connecting member; 164, Fourth connecting member; 165, Fifth connecting member;

[0049] 171, First opening and closing plate; 172, Second opening and closing plate; 173, Third opening and closing plate; 174, Fourth opening and closing plate; 176, First spiral member; 177, Second spiral member; 178, Fitting;

[0050] 1711, First misalignment port; 1721, Second misalignment port; 1731, Third misalignment port; 1741, Fourth misalignment port;

[0051] 1751, Power device; 1752, Transmission rod; 1753, First spiral assembly; 1754, Second spiral assembly; 1755, Third spiral assembly; 1756, Fourth spiral assembly; 1757, First transmission wheel; 1758, Second transmission wheel; 1759, First transmission belt; 1760, Second transmission belt;

[0052] 17521, First thread; 17522, Second thread; 17523, Third thread; 17524, Fourth thread;

[0053] 1761. Positioning part;

[0054] 1781. Built-in groove; 1782. Penetrating hole;

[0055] 2. Secondary diversion system;

[0056] 21. Third diversion member; 22. Secondary diversion power member; 23. Fourth diversion member; 24. Check flap;

[0057] 231. Fifth opening;

[0058] 3. Medicine storage cabinet;

[0059] 31. Medicine storage chamber; 32. Purification chamber; 33. Return flow area; 34. Air outlet; 35. Air inlet;

[0060] 4. Cabinet door;

[0061] 5. Air outlet opening and closing assembly;

[0062] 51. Opening and closing slide rail; 52. Air outlet opening and closing plate; 53. Opening and closing air cylinder;

[0063] 521. Conducting groove;

[0064] 6. Air inlet opening and closing assembly;

[0065] 61. Air inlet opening and closing plate; 62. Reset assembly; 63. Guide member; 64. Guide component;

[0066] 611. Matching port; 621. Reset guide post; 622. Reset spring; 631. Guide surface;

[0067] 7. Connection assembly;

[0068] 71. Guide rib; 72. Sliding member; 73. Rotating sleeve;

[0069] 721. Sliding groove; 722. Hinge column; 731. Limit notch;

[0070] 8. Lock;

[0071] 9. Column;

[0072] 91. Card slot. Specific implementation manner

[0073] To enable those skilled in the art to better understand the present invention and thus more clearly define the scope of protection of the present invention, the present invention will be described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only some specific embodiments of the concept of the present invention and only a part of the embodiments of the present invention. The specific and direct descriptions of the relevant structures are only for the convenience of understanding the present invention, and the specific features do not of course and directly limit the scope of implementation of the present invention. Conventional selections and substitutions made by those skilled in the art under the guidance of the concept of the present invention shall be regarded as being within the scope of protection required by the present invention.

[0074] Embodiment 1:

[0075] As Figures 1-11 shown, the present invention discloses an energy-saving fan system, which includes a main flow guiding system 1 above and a secondary flow guiding system 2 below.

[0076] Among them, the main flow guiding system 1 includes an inlet flow area 11, a first flow guiding member 12, a main flow guiding power member 13, a second flow guiding member 14, and an outlet flow area 15 arranged in sequence upward along the vertical direction. The thickness direction of the first flow guiding member 12 and the second flow guiding member 14 is along the vertical direction, the length direction is along the left-right direction, and the width direction is along the front-back direction, and the thickness, width, and length increase in sequence. In addition, a first flow guiding cavity 121 and a second flow guiding cavity 122 are arranged in the first flow guiding member 12. Both the first flow guiding cavity 121 and the second flow guiding cavity 122 are in the shape of long strips extending left and right, and the first flow guiding cavity 121 is located behind the second flow guiding cavity 122. Similarly, a third flow guiding cavity 141 and a fourth flow guiding cavity 142 are arranged in the second flow guiding member 14. Both the third flow guiding cavity 141 and the fourth flow guiding cavity 142 are in the shape of long strips extending left and right, and the third flow guiding cavity 141 is located in front of the fourth flow guiding cavity 142.

[0077] In addition, the main flow guiding system 1 includes an extended connection member 16 that sequentially connects the inlet flow area 11, the first flow guiding cavity 121, the second flow guiding cavity 122, the third flow guiding cavity 141, the fourth flow guiding cavity 142, and the outlet flow area 15;

[0078] In addition, a first opening 123 is arranged at the lower end of the first flow guiding member 12, and a second opening 124 is arranged at the upper end, so that the first opening 123 is used to connect the first flow guiding cavity 121 and the second flow guiding cavity 122 to the inlet flow area 11, and the second opening 124 is used to connect the first flow guiding cavity 121 and the second flow guiding cavity 122 to the main flow guiding power member 13. Similarly, a third opening 143 is arranged at the lower end of the second flow guiding member 14, and a fourth opening 144 is arranged at the upper end, so that the third opening 143 is used to connect the third flow guiding cavity 141 and the fourth flow guiding cavity 142 to the main flow guiding power member 13, and the fourth opening 144 is used to connect the third flow guiding cavity 141 and the fourth flow guiding cavity 142 to the outlet flow area 15.

[0079] In addition, the main air flow system 1 includes a purification opening and closing assembly 17 for opening and closing the first opening 123, the second opening 124, the third opening 143, and the fourth opening 144.

[0080] Among them, the main air flow power member 13 is used to transmit the air in the first air flow member 12 to the second air flow member 14; the secondary air flow system 2 is used to transmit air toward the inflow region 11.

[0081] Therefore, filtering substances or filters can be respectively arranged in the first diversion cavity 121, the second diversion cavity 122, the third diversion cavity 141, and the fourth diversion cavity 142, and can be divided into high-speed diversion and low-speed diversion according to actual conditions. Among them, when high-speed diversion is required, the first opening 123, the second opening 124, the third opening 143, and the fourth opening 144 are opened through the operation of the purification opening and closing assembly 17. Then, the secondary diversion system 2 and the main diversion power component 13 can be started, so that the secondary diversion system 2 transmits air upward into the inflow area 11. The air entering the inflow area 11 sequentially passes upward through the first opening 123 and enters the first diversion member 12, passes through the second opening 124 and enters the main diversion system 1, passes through the third opening 143 and enters the second diversion member 14, and passes through the fourth opening 144 and enters the outflow area 15 under the dual power action of the secondary diversion system 2 and the main diversion power component 13. And when passing upward through the first diversion member 12 and the second diversion member 14, the air contacts the filtering substances or filters in the first diversion member 12 for the first-stage filtration, and the air contacts the filtering substances or filters in the second diversion member 14 for the first-stage filtration, achieving efficient and rapid filtration of the air to ensure air quality. Moreover, the air is transmitted along the thickness direction of the first diversion member 12 and the second diversion member 14, so that the plane where the largest length and width are located in the first diversion member 12 and the second diversion member 14 is used as the inlet and outlet surface, and the shortest thickness direction is used as the air flow direction to ensure smooth air passage.Among them, when low-speed diversion is required, the first opening 123, the second opening 124, the third opening 143, and the fourth opening 144 are closed by the operation of the purification opening and closing assembly 17. Then, only by the low-speed operation of the diversion system 2, the air is transmitted upward from the diversion system 2 into the inflow area 11. Since the first opening 123, the second opening 124, the third opening 143, and the fourth opening 144 are all closed, the air entering the inflow area 11 sequentially passes through the first diversion chamber 121, the second diversion chamber 122, the third diversion chamber 141, and the fourth diversion chamber 142 connected by the range extender connector 16 under the power action of the diversion system 2, and finally enters the outflow area 15. When passing through the first deflector 12 and the second deflector 14, the air contacts the filtering substances or filters in the first diversion chamber 121 for the first-stage filtration, the air contacts the filtering substances or filters in the second diversion chamber 122 for the first-stage filtration, the air contacts the filtering substances or filters in the third diversion chamber 141 for the third-stage filtration, and the air contacts the filtering substances or filters in the fourth diversion chamber 142 for the fourth-stage filtration. This increases the travel of the air through the filtering substances or filters and improves the filtering effect of the air passing through the fan system once. In addition, it should be noted that since the air flows at a low speed, the air can also smoothly pass through the first diversion chamber 121, the second diversion chamber 122, the third diversion chamber 141, and the fourth diversion chamber 142 with a smaller flow cross-section in the left-right direction. After meeting the purification requirements, the operation of the diversion system 2 can be further reduced to reduce the energy consumption in the low-speed diversion state.

[0082] In this embodiment, the vertical direction is defined as the first direction.

[0083] In other embodiments, the diversion system 2 can be arranged above the outflow area 15 to draw the air in the outflow area 15 upward, and it can also achieve that when the main diversion power component 13 does not work, the air in the inflow area 11 sequentially passes through the first diversion chamber 121, the second diversion chamber 122, the third diversion chamber 141, and the fourth diversion chamber 142 and enters the outflow area 15, so that the air is purified when passing through the first diversion chamber 121, the second diversion chamber 122, the third diversion chamber 141, and the fourth diversion chamber 142 to ensure the air quality.

[0084] Preferably, the number of the diversion systems 2 is multiple. In this embodiment, 2 pieces arranged in a left-right arrangement are adopted, and each diversion system 2 is used to transmit air toward the inflow area 11.

[0085] Therefore, each diversion system 2 can be respectively connected to different gas sources that need to be purified, and when the corresponding gas source needs to be purified, the corresponding diversion system 2 is turned on for precise purification and optimization of the energy utilization rate.

[0086] Specifically, the secondary diversion system 2 in this embodiment includes a third diversion member 21, a secondary diversion power member 22, and a fourth diversion member 23 arranged in sequence upward along the vertical direction. The upper end of the fourth diversion member 23 faces the inflow area 11. Among them, the thickness directions of the third diversion member 21 and the fourth diversion member 23 are arranged along the vertical direction, and the size of the thickness is smaller than the sizes of the width and the length. The secondary diversion power member 22 is used to transmit the air in the third diversion member 21 into the fourth diversion member 23.

[0087] Therefore, filtering substances or filters can be respectively arranged in the third diversion member 21 and the fourth diversion member 23. Under the operation of the secondary diversion power member 22, the air below the third diversion member 21 passes upward through the third diversion member 21, the secondary diversion power member 22, and the fourth diversion member 23 in sequence and finally enters the inflow area 11. When passing upward through the third diversion member 21 and the fourth diversion member 23, the air contacts the filtering substances or filters in the third diversion member 21 for the first-stage filtration and contacts the filtering substances or filters in the fourth diversion member 23 for the first-stage filtration, realizing the efficient and rapid filtration of the air to ensure the air quality. Moreover, the air is transmitted along the thickness directions of the third diversion member 21 and the fourth diversion member 23, so that the plane where the length and width with the largest area in the third diversion member 21 and the fourth diversion member 23 are used as the inlet and outlet surfaces and the shortest thickness direction is used as the air flow direction to ensure the smooth passage of the air.

[0088] Among them, a fifth opening 231 for connecting the internal space of the fourth diversion member 23 and the inflow area 11 is provided at the upper end of the fourth diversion member 23 in this embodiment. A check flap 24 is provided at one end of the fourth diversion member 23 facing the inflow area 11. When the secondary diversion power member 22 operates to generate an upward air pressure, the air pressure pushes upward to cause the check flap 24 to flip and open the fifth opening 231. When the secondary diversion power member 22 does not operate, the check flap 24 flips under its own gravity to close the fifth opening 231. Thus, the air flow generated by the operating secondary diversion system 2 in the inflow area 11 will not enter the non-operating secondary diversion system 2, achieving the check effect.

[0089] Specifically, there are multiple fifth openings 231, and they are arranged in a matrix. The number of check flaps 24 is multiple, and they are arranged along the transverse direction of the arrangement of the fifth openings 231, so that each check flap 24 covers each fifth opening 231 in the same longitudinal direction through flipping.

[0090] Preferably, the check flap 24 is made of a plastic plate with a relatively thin thickness, so that it is lighter in weight and easier to be pushed open under the air pressure generated by the operation of the secondary diversion power member 22.

[0091] Among them, the main flow driving member 13 includes a lower cover 131, an upper cover 132, and a power fan 133. The power fan 133 is arranged between the lower cover 131 and the upper cover 132. The lower cover 131 covers the upper end of the first guiding member 12, and the upper cover 132 covers the lower end of the second guiding member 14, so that when the power fan 133 works, the air in the lower cover 131 can be transmitted upward to the upper cover 132.

[0092] Preferably, the number of the power fans 133 in this embodiment is three, and they are distributed left and right, so as to make the air extraction uniformity better and the air extraction power better.

[0093] In addition, since the guiding power member 22 and the main flow driving member 13 have the same principle and similar structures, no repeated description will be made here.

[0094] Specifically, the purification opening and closing assembly 17 in this embodiment includes a first opening and closing plate 171, a second opening and closing plate 172, a third opening and closing plate 173, a fourth opening and closing plate 174, and a lifting device. A first misaligned opening 1711 that is misaligned with the first opening 123 is arranged on the first opening and closing plate 171. A second misaligned opening 1721 that is misaligned with the second opening 124 is arranged on the second opening and closing plate 172. A third misaligned opening 1731 that is misaligned with the third opening 143 is arranged on the third opening and closing plate 173. A fourth misaligned opening 1741 that is misaligned with the fourth opening 144 is arranged on the fourth opening and closing plate 174. Specifically, the first opening and closing plate 171 is located in the inflow area 11 so that the first opening and closing plate 171 is located below the first opening 123. The second opening and closing plate 172 is located in the lower cover 131 so that the second opening and closing plate 172 is located above the second opening 124. The third opening and closing plate 173 is located in the upper cover 132 so that the third opening and closing plate 173 is located below the third opening 143. The fourth opening and closing plate 174 is located in the outflow area 15 so that the fourth opening and closing plate 174 is located above the fourth opening 144. In addition, the lifting device is used to drive the first opening and closing plate 171, the second opening and closing plate 172, the third opening and closing plate 173, and the fourth opening and closing plate 174 to lift.

[0095] Therefore, when high-speed diversion is required, the lifting device drives the first opening and closing plate 171 to move downward to the middle position of the inflow area 11, drives the second opening and closing plate 172 to move upward to the middle position of the lower housing 131, drives the third opening and closing plate 173 to move downward to the middle position of the upper housing 132, and drives the fourth opening and closing plate 174 to move upward to the middle position of the outflow area 15. As a result, there is a certain distance between the first opening 123 and the first misalignment opening 1711 vertically, so that the air below the first misalignment opening 1711 passes upward through the first misalignment opening 1711 into the space between the first opening 123 and the first misalignment opening 1711, and then enters the first diversion member 12 through the first opening 123. Similarly, there is a certain distance between the second opening 124 and the second misalignment opening 1721 vertically, so that the air in the first diversion member 12 passes upward through the second opening 124 into the space between the second opening 124 and the second misalignment opening 1721, and then is transmitted to the upper part of the second misalignment opening 1721 through the second misalignment opening 1721. There is a certain distance between the third opening 143 and the third misalignment opening 1731 vertically, so that the air below the third misalignment opening 1731 passes upward through the third misalignment opening 1731 into the space between the third opening 143 and the third misalignment opening 1731, and then enters the second diversion member 14 through the third opening 143. There is a certain distance between the fourth opening 144 and the fourth misalignment opening 1741 vertically, so that the air in the second diversion member 14 passes upward through the fourth opening 144 into the space between the fourth opening 144 and the fourth misalignment opening 1741, and then is transmitted to the upper part of the fourth misalignment opening 1741 through the fourth misalignment opening 1741. When low-speed diversion is required, the lifting device drives the first opening and closing plate 171 to fit upward against the bottom of the first diversion member 12, drives the second opening and closing plate 172 to fit downward against the top of the first diversion member 12, drives the third opening and closing plate 173 to fit upward against the bottom of the second diversion member 14, and drives the fourth opening and closing plate 174 to fit downward against the top of the second diversion member 14, thereby eliminating the gap between the first opening and closing plate 171 and the first diversion member 12. Moreover, the horizontal misalignment of the first opening 123 and the first misalignment opening 1711 makes it difficult for air to be diverted from below the first opening and closing plate 171 through the first misalignment opening 1711 and the first opening 123 into the first diversion member 12. Similarly, it is difficult for air to be diverted from the first diversion member 12 through the second misalignment opening 1721 and the second opening 124 to above the second opening and closing plate 172, difficult for air to be diverted from below the third opening and closing plate 173 through the third misalignment opening 1731 and the third opening 143 into the second diversion member 14, and difficult for air to be diverted from the second diversion member 14 through the fourth misalignment opening 1741 and the fourth opening 144 to above the fourth opening and closing plate 174. Furthermore, the air will then flow through the extended connection member 16 from the inflow area 11 and be diverted in sequence along the left-right direction through the first diversion cavity 121, the second diversion cavity 122, the third diversion cavity 141, and the fourth diversion cavity 142, and finally be diverted out from the outflow area 15 to ensure efficient purification.

[0096] In addition, sealing rings can also be arranged around the first dislocation port 1711, the second dislocation port 1721, the third dislocation port 1731, and the fourth dislocation port 1741 to achieve better sealing effect.

[0097] Preferably, in this embodiment, the number of the first opening 123, the second opening 124, the third opening 143, and the fourth opening 144 is multiple, and they are arranged in a matrix; the number of the first dislocation port 1711, the second dislocation port 1721, the third dislocation port 1731, and the fourth dislocation port 1741 is multiple, and they are arranged in a matrix.

[0098] So that the air is transmitted upward more uniformly through the openings and dislocation ports arranged in a matrix. Under the dislocation setting, the air needs to undergo a certain horizontal offset between the corresponding openings and dislocation ports to achieve air mixing, making the air more uniform.

[0099] Specifically, the lifting device in this embodiment includes a power device 1751, a transmission rod 1752, a first screw assembly 1753, a second screw assembly 1754, a third screw assembly 1755, and a fourth screw assembly 1756. The axial direction of the transmission rod 1752 is arranged vertically, and it sequentially passes upward through the first flow guide member 12, the lower cover 131, the upper cover 132, the second flow guide member 14 to the outflow area 15 from the inflow area 11, and is rotatably installed in the inflow area 11 and the outflow area 15 by bearings. Among them, the transmission rod 1752 is provided with a first thread 17521 in the inflow area 11, a second thread 17522 in the lower cover 131, a third thread 17523 in the upper cover 132, and a fourth thread 17524 in the outflow area 15. The spiral directions of the first thread 17521 and the third thread 17523 are the same, the spiral directions of the second thread 17522 and the fourth thread 17524 are the same, and the spiral directions of the first thread 17521 and the second thread 17522 are opposite. The first screw assembly 1753 is fixedly installed on the first opening and closing plate 171 and is threadedly connected to the first thread 17521. The second screw assembly 1754 is fixedly installed on the second opening and closing plate 172 and is threadedly connected to the second thread 17522. The third screw assembly 1755 is fixedly installed on the third opening and closing plate 173 and is threadedly connected to the third thread 17523. The fourth screw assembly 1756 is fixedly installed on the fourth opening and closing plate 174 and is threadedly connected to the fourth thread 17524. The power device 1751 is used to drive the transmission rod 1752 to rotate.

[0100] Therefore, the rotation of the transmission rod 1752 is driven by the operation of the power device 1751, so that the first opening and closing plate 171, the second opening and closing plate 172, the third opening and closing plate 173, and the fourth opening and closing plate 174 are synchronously lifted and lowered under the cooperation of the first thread 17521 and the first screw assembly 1753, the second thread 17522 and the second screw assembly 1754, the third thread 17523 and the third screw assembly 1755, and the fourth thread 17524 and the fourth screw assembly 1756. Among them, the first opening and closing plate 171 and the third opening and closing plate 173 move in the same direction and synchronously upward to close the first opening 123 and the third opening 143, and synchronously downward to open the first opening 123 and the third opening 143. Among them, the second opening and closing plate 172 and the fourth opening and closing plate 174 move in the same direction, and are opposite to the first opening and closing plate 171 and the third opening and closing plate 173, and synchronously downward to close the second opening 124 and the fourth opening 144, and synchronously upward to open the second opening 124 and the fourth opening 144.

[0101] Preferably, the power device 1751 in this embodiment adopts a combination of a servo motor and a reduction gearbox, and the reduction gearbox is a worm and worm gear reduction gearbox, so as to accurately control the lifting and lowering of the first opening and closing plate 171, the second opening and closing plate 172, the third opening and closing plate 173, and the fourth opening and closing plate 174 by the operation of the servo motor. After the servo motor stops working, the worm and worm gear reduction gearbox has anti-rotation to maintain the stability of the first opening and closing plate 171, the second opening and closing plate 172, the third opening and closing plate 173, and the fourth opening and closing plate 174.

[0102] Preferably, the number of transmission rods 1752 is four. Correspondingly, the number of the first screw assembly 1753, the second screw assembly 1754, the third screw assembly 1755, and the fourth screw assembly 1756 is also four groups, so that the transmission rods 1752 are arranged in a quadrilateral shape, and each screw assembly is respectively arranged at the four corner ends of each opening and closing plate and is threadedly connected to the corresponding transmission rod 1752. In addition, the transmission rod 1752 is provided with a first transmission wheel 1757 and a second transmission wheel 1758 arranged up and down between the upper cover 132 and the lower cover 131, and a first transmission belt 1759 is arranged between the left and right opposite first transmission wheels 1757, and a second transmission belt 1760 is arranged between the front and back opposite second transmission wheels 1758. Thus, the driving of one transmission rod 1752 by the power device 1751 can synchronously drive the rotation of each transmission rod 1752, and thus the lifting and lowering of each opening and closing plate can be carried out more stably through the thread fit at the four corner ends.

[0103] Preferably, the first transmission wheel 1757 and the second transmission wheel 1758 adopt synchronous wheels, and the first transmission belt 1759 and the second transmission belt 1760 adopt synchronous belts.

[0104] Specifically, the range extender connector 16 in this embodiment includes a first connector 161, a second connector 162, a third connector 163, a fourth connector 164, and a fifth connector 165. Among them, the first connector 161 connects the left end of the inflow area 11 and the left end of the first diversion cavity 121, the second connector 162 connects the right end of the first diversion cavity 121 and the right end of the second diversion cavity 122, the third connector 163 connects the left end of the second diversion cavity 122 and the left end of the third diversion cavity 141, the fourth connector 164 connects the right end of the third diversion cavity 141 and the right end of the fourth diversion cavity 142, and the fifth connector 165 connects the left end of the fourth diversion cavity 142 and the left end of the outflow area 15.

[0105] Among them, the first spiral assembly 1753, the second spiral assembly 1754, the third spiral assembly 1755, and the fourth spiral assembly 1756 all include a first spiral member 176 and a second spiral member 177. Among them, four corner ends of the first opening and closing plate 171, the second opening and closing plate 172, the third opening and closing plate 173, and the fourth opening and closing plate 174 protrude away from the corresponding first opening 123, second opening 124, third opening 143, and fourth opening 144 to be provided with a fitting 178. An hexagonal prism-shaped built-in groove 1781 is arranged in the fitting 178, and the built-in groove 1781 penetrates through to the bottom. In addition, a circular through hole 1782 is arranged at the top of the fitting 178. A positioning portion 1761 adapted to the shape and size of the built-in groove 1781 is arranged on the outer periphery of the first spiral member 176, so that the first spiral member 176 is inserted into the built-in groove 1781 from the bottom of the fitting 178 and passes through the through hole 1782, so that the positioning portion 1761 is built in the built-in groove 1781 to achieve rotational positioning. In addition, an external thread is arranged on the outer periphery of the first spiral member 176, and an internal thread is arranged on the second spiral member 177, so that the second spiral member 177 is threadedly connected to the outer periphery of the first spiral member 176, and the top of the fitting 178 is clamped by the positioning portion 1761 and the second spiral member 177 to complete the fixation of the first spiral member 176. In addition, an internal thread is arranged on the inner periphery of the first spiral member 176, so that a transmission connection is realized through the threaded fit between the internal thread on the inner periphery of the first spiral member 176 and the transmission rod 1752.

[0106] Embodiment 2:

[0107] Such as Figures 12-18As shown in the figure, the present invention discloses an air purification device for medical use, which includes a medicine storage cabinet 3. Inside the medicine storage cabinet 3, there are a medicine storage chamber 31, a purification chamber 32, and a reflux area 33. Among them, the purification chamber 32 is located above the medicine storage chamber 31, and the reflux area 33 is located behind the medicine storage chamber 31, and the three are respectively connected. In addition, a cabinet door 4 for opening and closing the medicine storage chamber 31 is provided on the front side of the medicine storage cabinet 3. An energy-saving fan system described in Embodiment 1 is provided in the purification chamber 32, and filtering substances or filters are arranged in the first diversion chamber 121, the second diversion chamber 122, the third diversion chamber 141, the fourth diversion chamber 142, the third diversion member 21, and the fourth diversion member 23.

[0108] Therefore, when the cabinet door 4 is opened, the high-speed diversion described in Embodiment 1 is carried out to quickly purify the air in the medicine storage chamber 31, and the air in the medicine storage chamber 31 quickly flows upward, so that the medicine storage chamber 31 maintains a relatively high negative pressure state, ensuring the hygiene of the drugs stored in the medicine storage chamber 31; when the cabinet door 4 is closed, the low-speed diversion described in Embodiment 1 is carried out to purify the air in the medicine storage chamber 31 with high quality, and the low-speed operation of the diversion power member 22 reduces the energy consumption.

[0109] Preferably, the number of medicine storage chambers 31 is multiple, and each medicine storage chamber 31 is separated. In this embodiment, specifically 2 medicine storage chambers 31 are adopted to correspond to two sets of the following diversion systems 2, and independent cabinet doors 4 are provided for each medicine storage chamber 31 to open and close the medicine storage chamber 31.

[0110] Among them, a plurality of air outlets 34 arranged in a matrix are provided on the top of the medicine storage cabinet 3 to connect the purification chamber 32 and the outside of the medicine storage cabinet 3 through the air outlets 34. In addition, an air outlet opening and closing assembly 5 for opening and closing the air outlets 34 is provided on the top of the purification chamber 32 of the medicine storage cabinet 3.

[0111] Therefore, when the cabinet door 4 is opened, the air outlet opening and closing assembly 5 controls to open the air outlets 34, so that the air purified by the fan system from the medicine storage chamber 31 can be discharged to the outside through the air outlets 34. Since the air is purified, the emission of polluted air is prevented. In addition, since the air outlets 34 increase the air emission, less air flowing back to the medicine storage chamber 31 through the reflux area 33 is obtained, so that more clean air from the outside in front of the medicine storage chamber 31 can enter the medicine storage chamber 31 for air replacement; when the cabinet door 4 is closed, the air outlet opening and closing assembly 5 can control to close the air outlets 34, so that the air purified by the fan system from the medicine storage chamber 31 can only be diverted towards the reflux area 33 and re-enter the medicine storage chamber 31 to cut off or reduce the air entering the medicine storage chamber 31 from the outside. Thus, the air in the medicine storage cabinet 3 is the air purified reciprocally, ensuring the air quality in the medicine storage cabinet 3.

[0112] Specifically, the air outlet opening and closing assembly 5 includes an opening and closing slide rail 51, an air outlet opening and closing plate 52, and an opening and closing air cylinder 53. The air outlet opening and closing plate 52 is slidably mounted on the top of the purification chamber 32 along the front-rear direction through the opening and closing slide rail 51. The opening and closing air cylinder 53 is fixedly mounted on the top of the purification chamber 32, and the output shaft of the opening and closing air cylinder 53 is connected to the air outlet opening and closing plate 52 to drive the air outlet opening and closing plate 52 to slide back and forth. In addition, a plurality of conduction grooves 521 arranged along the front-rear direction are provided on the air outlet opening and closing plate 52, and each conduction groove 521 extends left and right to adapt to a row of air outlet openings 34.

[0113] Therefore, by the operation of the opening and closing air cylinder 53 to drive the air outlet opening and closing plate 52 to slide back and forth, when the conduction grooves 521 are aligned with the air outlet openings 34, the purification chamber 32 is communicated with the outside, and exhaust can be carried out. When the conduction grooves 521 and the air outlet openings 34 are misaligned, the purification chamber 32 is cut off from the outside.

[0114] In addition, an air inlet 35 is provided on the cabinet door 4 in this embodiment. The air inlet 35 is used to communicate the purification chamber 32 with the outside of the medicine storage cabinet 3 when the cabinet door 4 closes the purification chamber 32. In addition, an air inlet opening and closing assembly 6 for opening and closing the air inlet 35 is provided on the cabinet door 4. And the cabinet door 4 has a first state and a second state when closing the purification chamber 32. In the first state, the air inlet opening and closing assembly 6 closes the air inlet 35. In the second state, the air inlet opening and closing assembly 6 opens the air inlet 35.

[0115] Therefore, when the cabinet door 4 is closed, it can be maintained in the first state according to the internal stored medicine or other biological storage requirements to completely cut off the air connection between the medicine storage cabinet 3 and the outside, ensuring that the air in the medicine storage cabinet 3 only undergoes internal circulation and preventing external air from entering and polluting the stored medicine or other organisms. It can also be maintained in the second state so that external air can enter the medicine storage cabinet 3 through the air inlet 35 to update the air in the medicine storage cabinet 3, such as storing aerobic organisms, etc.

[0116] Specifically, the number of the air inlets 35 is multiple, and they are arranged in a matrix, and each air inlet 35 is in the shape of a strip extending left and right.

[0117] Specifically, the air inlet opening and closing assembly 6 includes an air inlet opening and closing plate 61, a reset assembly 62, and a guiding member 63. Among them, the air inlet opening and closing plate 61 is slidably arranged vertically on the cabinet door 4, and mating ports 611 are arranged in a matrix on the air inlet opening and closing plate 61. The reset assembly 62 is used to drive the air inlet opening and closing plate 61 to reset downward. The guiding member 63 is arranged at the bottom of the air inlet opening and closing plate 61, and a guiding surface 631 that slopes backward from bottom to top and backward is provided at the rear side of the guiding member 63. In addition, a guiding member 64 is provided on the medicine storage cabinet 3, so that when the cabinet door 4 approaches the medicine storage cabinet 3, the guiding member 64 cooperates with the guiding surface 631 to push the air inlet opening and closing plate 61 upward, causing the air inlet 35 and the mating ports 611 to be misaligned and cutting off the connection between the medicine storage chamber 31 and the outside.

[0118] Specifically, the reset assembly 62 includes a reset guide post 621 and a reset spring 622. The reset guide post 621 is fixed to the cabinet door 4, and the air intake opening and closing plate 61 is sleeved on the outer periphery of the reset guide post 621 for vertical sliding guidance. The reset spring 622 is sleeved on the outer periphery of the reset guide post 621. The upper end of the reset spring 622 abuts against the upper end head of the reset guide post 621, and the lower end abuts against the air intake opening and closing plate 61 to drive the air intake opening and closing plate 61 to reset downward.

[0119] Preferably, the number of the guiding members 63 is multiple and arranged in the left-right direction, so as to improve the stability through the cooperation of the multiple guiding members 63 and the guiding member 64.

[0120] In addition, a connecting assembly 7 is provided between the upper and lower ends of the cabinet door 4 and the medicine storage cabinet 3. The connecting assembly 7 includes a guiding rib 71, a sliding member 72 and a rotating sleeve 73. The guiding rib 71 is integrally formed on the medicine storage cabinet 3 and extends in the front-rear direction. A long strip-shaped sliding groove 721 is provided on the sliding member 72, so that the guiding rib 71 and the sliding groove 721 cooperate to enable the sliding member 72 to be slidably installed on the medicine storage cabinet 3 in the front-rear direction. The rotating sleeve 73 is fixedly installed on the cabinet door 4 by means of clamping or the like. In addition, a hinge post 722 is provided at the front end of the upper side of the sliding member 72, so that the cabinet door 4 and the medicine storage cabinet 3 are connected by inserting the hinge post 722 into the rotating sleeve 73. In addition, a limiting notch 731 is provided through the bottom of the rotating sleeve 73 in the front-rear direction, so that the guiding rib 71 can be clamped in the limiting notch 731 to limit the rotation of the rotating sleeve 73, and the rotation limit of the rotating sleeve 73 is released by disengaging from the limiting notch 731.

[0121] Wherein, when the cabinet door 4 is in the first state, the guiding rib 71 is engaged with the front end of the sliding groove 721, so that the guiding rib 71 is clamped in the limiting notch 731 to limit the rotation of the cabinet door 4. Therefore, the cabinet door 4 can only move forward in the first state, and the cabinet door 4 can move forward from the first state to the second state. When the cabinet door 4 is in the second state, the guiding rib 71 is engaged with the rear end of the sliding groove 721, so that the guiding rib 71 and the limiting notch 731 are separated. Therefore, the cabinet door 4 can be rotated to be opened. When the cabinet door 4 is rotated, the limiting notch 731 and the guiding rib 71 are misaligned, so that the rotating sleeve 73 restricts the sliding member 72 from sliding in the front-rear direction along the guiding rib 71.

[0122] Therefore, the cabinet door 4 can only slide forward in the first state, so that each guiding member 63 moves back and forth relative to the guiding member 64, which can ensure that each guiding member 63 is always in contact with the guiding member 64, so as to make the force on the air intake opening and closing plate 61 in the left-right direction more uniform and improve the smoothness of sliding. When the cabinet door 4 slides forward to the second state, the guiding member 63 and the guiding member 64 are separated, so that the air intake opening and closing plate 61 moves downward to the lowest position under the action of the reset assembly 62, and the air intake port 35 and the mating port 611 are aligned to connect the medicine storage chamber 31 and the outside. Similarly, when it is necessary to adjust the cabinet door 4 from the second state to the first state, the cabinet door 4 is pushed backward, and the guiding members 63 are synchronously brought into contact with the guiding member 64 by moving back and forth to ensure the smoothness of the vertical sliding of the air intake opening and closing plate 61.

[0123] In addition, a lock 8 is provided on the cabinet door 4, and a column 9 is provided on the front side between the two medicine storage chambers 31 of the medicine storage cabinet 3. In the first state, the cabinet door 4 fits against the column 9 backward, and the lock tongue of the lock 8 is located directly behind the column 9 by rotation to achieve locking. In the second state, there is a certain distance between the cabinet door 4 and the column 9, and a card slot 91 is provided on the column 9. The lock tongue of the lock 8 is engaged in the card slot 91 by rotation to achieve locking.

[0124] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy-saving fan system, characterized in that, It includes a main flow guiding system (1) and a secondary flow guiding system (2); The main flow guiding system (1) includes an inflow area (11), a first flow guiding member (12), a main flow guiding power member (13), a second flow guiding member (14), and an outflow area (15) arranged in sequence along a first direction. The thickness direction of the first flow guiding member (12) and the second flow guiding member (14) is along the first direction. A first flow guiding cavity (121) and a second flow guiding cavity (122) are arranged in the first flow guiding member (12). The first flow guiding cavity (121) and the second flow guiding cavity (122) are in the shape of long strips extending along the length direction of the first flow guiding member (12). A third flow guiding cavity (141) and a fourth flow guiding cavity (142) are arranged in the second flow guiding member (14). The third flow guiding cavity (141) and the fourth flow guiding cavity (142) are in the shape of long strips extending along the length direction of the second flow guiding member (14); The main flow guiding system (1) includes an extended connection member (16) that connects the inflow area (11), the first flow guiding cavity (121), the second flow guiding cavity (122), the third flow guiding cavity (141), the fourth flow guiding cavity (142), and the outflow area (15) in sequence; At both ends of the first flow guiding member (12) along the first direction, a first opening (123) and a second opening (124) are provided. The first opening (123) is used to connect the first flow guiding cavity (121) and the second flow guiding cavity (122) to the inflow area (11). The second opening (124) is used to connect the first flow guiding cavity (121) and the second flow guiding cavity (122) to the main flow guiding power member (13). At both ends of the second flow guiding member (14) along the first direction, a third opening (143) and a fourth opening (144) are provided. The third opening (143) is used to connect the third flow guiding cavity (141) and the fourth flow guiding cavity (142) to the main flow guiding power member (13). The fourth opening (144) is used to connect the third flow guiding cavity (141) and the fourth flow guiding cavity (142) to the outflow area (15); The main flow guiding system (1) includes a purification opening and closing assembly (17) for opening and closing the first opening (123), the second opening (124), the third opening (143), and the fourth opening (144); The main flow guiding power member (13) is used to transfer the air in the first flow guiding member (12) into the second flow guiding member (14); The secondary flow guiding system (2) is used to transfer air towards the inflow area (11) or to extract the air in the outflow area (15).

2. The energy-saving fan system according to claim 1, wherein: The number of the secondary flow guiding systems (2) is multiple, and each secondary flow guiding system (2) is used to transfer air towards the inflow area (11).

3. The energy-saving fan system according to claim 2, wherein: The said air guiding system (2) includes a third air guiding member (21), an air guiding power member (22), and a fourth air guiding member (23) arranged in sequence along a first direction. One end of the fourth air guiding member (23) facing away from the air guiding power member (22) faces the inflow area (11). The thickness directions of the third air guiding member (21) and the fourth air guiding member (23) are along the first direction. The air guiding power member (22) is used to transfer the air in the third air guiding member (21) into the fourth air guiding member (23).

4. The energy-saving fan system according to claim 3, wherein: One end of the thickness of the said fourth air guiding member (23) is provided with a fifth opening (231) for communicating the internal space of the fourth air guiding member (23) with the inflow area (11). The fourth air guiding member (23) is provided with a check flap (24) at one end facing the inflow area (11). The check flap (24) is used to open the fifth opening (231) when the air guiding power member (22) is working and close the fifth opening (231) when the air guiding power member (22) is not working.

5. The energy-saving fan system according to claim 1, wherein: The said purification opening and closing assembly (17) includes a first opening and closing plate (171), a second opening and closing plate (172), a third opening and closing plate (173), a fourth opening and closing plate (174), and a lifting device. A first offset opening (1711) which is offset from the first opening (123) is provided on the first opening and closing plate (171). A second offset opening (1721) which is offset from the second opening (124) is provided on the second opening and closing plate (172). A third offset opening (1731) which is offset from the third opening (143) is provided on the third opening and closing plate (173). A fourth offset opening (1741) which is offset from the fourth opening (144) is provided on the fourth opening and closing plate (174). The lifting device is used to drive the first opening and closing plate (171), the second opening and closing plate (172), the third opening and closing plate (173), and the fourth opening and closing plate (174) to lift.

6. The energy-saving fan system according to claim 5, characterized in that: The numbers of the said first opening (123), second opening (124), third opening (143), and fourth opening (144) are all multiple, and they are arranged in a matrix; The numbers of the first offset opening (1711), second offset opening (1721), third offset opening (1731), and fourth offset opening (1741) are all multiple, and they are arranged in a matrix.

7. An air purification device for medical use, characterized in that, It includes a medicine storage cabinet (3). A medicine storage chamber (31), a purification chamber (32), and a reflux area (33) are arranged in the medicine storage cabinet (3). A cabinet door (4) for opening and closing the medicine storage chamber (31) is provided on the medicine storage cabinet (3). The energy-saving fan system described in any one of claims 1-6 is arranged in the purification chamber (32); The energy-saving fan system is used to extract the air in the medicine storage chamber (31) to the purification chamber (32) for purification. The air in the purification chamber (32) flows to the reflux area (33), and then flows from the reflux area (33) to the medicine storage chamber (31) to form an air flow cycle.

8. The air purification device for medical use according to claim 1, characterized in that: The number of the said medicine storage chambers (31) is multiple, and each of the medicine storage chambers (31) is separated.

9. The air purification device for medical use according to claim 1, wherein: The medicine storage cabinet (3) is provided with an air outlet (34) that communicates the purification chamber (32) with the outside of the medicine storage cabinet (3); The medicine storage cabinet (3) is provided with an air outlet opening and closing assembly (5) for opening and closing the air outlet (34).

10. The air purification device for medical use according to claim 1, characterized in that: An air inlet (35) is provided on the cabinet door (4), and the air inlet (35) is used to communicate the purification chamber (32) with the outside of the medicine storage cabinet (3) when the cabinet door (4) closes the purification chamber (32); The cabinet door (4) is provided with an air inlet opening and closing assembly (6) for opening and closing the air inlet (35); When the cabinet door (4) closes the purification chamber (32), it has a first state and a second state. In the first state, the air inlet opening and closing assembly (6) closes the air inlet (35), and in the second state, the air inlet opening and closing assembly (6) opens the air inlet (35).

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