Filter and incubator using same

Abstract

The utility model relates to the technical field of cell culture equipment, and discloses a filter and a culture box body applying the filter, the filter is arranged at an air inlet of a centrifugal fan, the filter comprises a filter upper cover, a filter element and a bottom sealing cover, a channel is formed in the middle of the filter element, a through hole is formed in the filter upper cover, and the bottom sealing cover is arranged on the filter upper cover. The through hole is connected with an air inlet of the centrifugal fan and a channel in the middle of the filter element, the bottom sealing cover seals the bottom of the channel of the filter element, the filter element is in a circular truncated cone shape, and the unfolded view of the filter element is a fan ring. The utility model discloses a culture box body, a centrifugal fan is arranged above the box body, one side of an air outlet of the centrifugal fan forms an internal air duct along the top surface and the side wall of the box body, an air inlet of the centrifugal fan is positioned below the top surface of the box body, and a filter is arranged below the air inlet. According to the utility model, the filter is made into a circular truncated cone shape and simultaneously receives circulating air fed from the bottom of the incubator body, so that the filter is fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of cell culture equipment, in particular to a filter and a culture box using the filter. Background Art

[0002] The culture box is used for the cultivation of microorganisms. In order to prevent the harmful substances in the culture box from being damaged by bacteria and other harmful particles during the cultivation process, the harmful substances in the culture box must be filtered out through a high-efficiency filter.

[0003] Existing high-efficiency filters are generally flat-plate-shaped and have relatively large air inlets. Since the air intake in all directions of the air inlet is not uniform, the utilization rate of the high-efficiency filter is greatly reduced. The filter has become ineffective in the area with large air intake, while other areas are not utilized, resulting in a waste of the high-efficiency filter. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a filter and a culture box using the filter. The filter is made into a truncated cone shape and receives the circulating air sent from the bottom of the culture box to achieve full utilization of the filter.

[0005] The technical solution adopted by the utility model is:

[0006] A filter is arranged at the air inlet of a centrifugal fan, and is characterized in that it includes a filter cover, a filter element and a bottom cover, a channel is formed in the middle of the filter element, a through hole is provided on the filter cover, the through hole connects the air inlet of the centrifugal fan and the channel in the middle of the filter element, the bottom cover seals the bottom of the filter element channel, the filter element is in the shape of a truncated cone, and its unfolded view is a fan ring.

[0007] Furthermore, the arc angle of the fan ring is greater than or equal to 180°.

[0008] Furthermore, the filter element is installed with the large end of the cone facing downward.

[0009] Furthermore, the filter element is installed with the large end of the cone facing upward.

[0010] Furthermore, the filter element is a HEPA high efficiency filter element.

[0011] A culture box, characterized in that a centrifugal fan is installed above the box, one side of the air outlet of the centrifugal fan forms an internal air duct along the top surface and side wall of the box, the air inlet of the centrifugal fan is located below the top surface of the box, the filter is installed below the air inlet, the air blown by the centrifugal fan is sent to the bottom of the box along the internal air duct, and flows from the air inlet to the centrifugal fan through the inside of the box to form a circulation.

[0012] Furthermore, a multi-layer partition is arranged inside the box, and an array of ventilation holes is opened on the partition.

[0013] Furthermore, the centrifugal fan is located on a side wall away from the internal air duct.

[0014] Furthermore, the internal air duct is an air duct arranged on the top surface and the side wall, and the size of the air duct matches the size of the air outlet of the centrifugal fan.

[0015] Furthermore, the centrifugal fan is located at the center of the front and rear positions of the box body, and the air duct is also located at the center of the top surface and the side wall.

[0016] The beneficial effects of the utility model are:

[0017] (1) The filter is made into a truncated cone shape to make full use of the filter;

[0018] (2) The frustum shape enlarges the contact area between the filter and the circulating air;

[0019] (3) The filter occupies a smaller volume of the incubator, making installation and replacement easier;

[0020] (4) The filter is H14 grade high efficiency filter with a filtration efficiency of 99.99%. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attached Figure 1 is a side cross-sectional schematic diagram of the culture box body of Example 1;

[0022] Attached Figure 2 Yes Figure 1 Schematic diagram of CC cross-section;

[0023] Attached Figure 3 is a schematic diagram of the filter decomposition of the first embodiment;

[0024] Attached Figure 4 1 is a schematic diagram of the filter element of the first embodiment;

[0025] Attached Figure 5 is a side cross-sectional schematic diagram of the culture box body of Example 2;

[0026] Attached Figure 6 Yes Figure 5 DD cross-sectional diagram;

[0027] Attached Figure 7 is a schematic diagram of the filter decomposition of the second embodiment;

[0028] Attached Figure 8 Schematic diagram of the filter element of the second embodiment.

[0029] The arrows in the attached drawings indicate the flow direction of the circulating air.

[0030] The reference numerals in the accompanying drawings are:

[0031] 1. Incubator body; 2. Internal air duct;

[0032] 3. Centrifugal fan; 4. Filter;

[0033] 4.1. Filter cover; 4.2. Filter element;

[0034] 4.3. Bottom cover. DETAILED DESCRIPTION

[0035] The specific implementation of the filter of the utility model and the culture box using the filter are described in detail below with reference to the accompanying drawings. Embodiment 1

[0036] See attached Figure 1 , 2 A centrifugal fan 2 is installed above the culture box 1, and an internal air duct 3 is formed on one side of the air outlet of the centrifugal fan 2 along the top surface and side wall of the box. The internal air duct 3 is an air duct arranged on the top surface and the side wall, and the size of the air duct matches the size of the air outlet of the centrifugal fan 2. The centrifugal fan 2 is installed in the central position of the front and back to facilitate the uniform flow of the circulating air. The air duct is also located in the central position of the top surface and the side wall. The centrifugal fan 2 is located at the left and right positions away from the side wall with the internal air duct 3, so that the circulating air coming in from the bottom can flow through the entire box.

[0037] The air inlet of the centrifugal fan 2 is located below the top surface of the box, and a filter 4 is installed below the air inlet. A multi-layer partition is set inside the culture box 1 for placing culture vessels, and an array of ventilation holes is opened in the middle of the partition. The air blown by the centrifugal fan 2 is sent to the bottom of the box along the internal air duct 3, and flows to the centrifugal fan 2 through the filter 4 at the air inlet inside the box to form a cycle.

[0038] See attached Figure 3 , 4 The filter 4 includes a filter cover 4.1, a filter element 4.2 and a bottom cover 4.3. The filter element 4.2 is formed by cutting the HEPA high-efficiency filter element 4.2 into a fan ring shape and then curling it. The fan ring is an excellent arc with an arc angle greater than 180 degrees. The rolled filter element 4.2 is in the shape of a truncated cone, with a large upper end and a small lower end, and a channel formed in the middle. The filter cover 4.1 is provided with a through hole, which connects the air inlet of the centrifugal fan 2 and the channel in the middle of the filter element 4.2. The bottom cover 4.3 seals the bottom of the channel of the filter element 4.2.

[0039] The air blown out by the centrifugal fan 2 flows through the box through the air duct, and then enters the air inlet of the centrifugal fan 2 along the periphery of the filter element 4.2 to remove harmful particles in the box. Embodiment 2

[0040] See attached Figure 5 , 6 ,Example 2 is basically the same as Example 1, except that the structure of the filter 4 is different.

[0041] See attached Figure 7 , 8 The filter 4 of this embodiment is a structure with a small upper end and a large lower end, and its unfolded view is a 180-degree fan ring.

[0042] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A filter, arranged at the air inlet of a centrifugal fan, characterized in that: It includes a filter cover, a filter element and a bottom cover. A channel is formed in the middle of the filter element. A through hole is provided on the filter cover. The through hole connects the air inlet of the centrifugal fan and the channel in the middle of the filter element. The bottom cover seals the bottom of the filter element channel. The filter element is in a truncated cone shape, and its unfolded view is a fan ring.

2. The filter according to claim 1, characterized in that: The arc angle of the fan ring is greater than or equal to 180°.

3. The filter according to claim 1, characterized in that: The filter element is installed in a manner that the large end of the truncated cone faces downward.

4. The filter according to claim 1, characterized in that: The filter element is installed in a manner that the large end of the truncated cone faces upward.

5. The filter according to any one of claims 1 to 4, characterized in that: The filter element is a HEPA high efficiency filter element.

6. A culture box, using the filter according to any one of claims 1 to 5, characterized in that: A centrifugal fan is installed above the box body, and an internal air duct is formed on one side of the air outlet of the centrifugal fan along the top surface and side wall of the box body. The air inlet of the centrifugal fan is located below the top surface of the box body, and the filter is installed below the air inlet. The air blown out by the centrifugal fan is sent to the bottom of the box body along the internal air duct, and flows from the air inlet to the centrifugal fan through the inside of the box body to form a circulation.

7. The incubator according to claim 6, characterized in that: A multi-layer partition is arranged inside the box, and an array of ventilation holes is opened on the partition.

8. The incubator according to claim 6, characterized in that: The centrifugal fan is located away from the side wall with the internal air duct.

9. The culture box according to any one of claims 6 to 8, characterized in that: The internal air duct is an air duct arranged on the top surface and the side wall, and the size of the air duct matches the size of the air outlet of the centrifugal fan.

10. The culture box according to claim 9, characterized in that: The centrifugal fan is located at the center of the front and rear positions of the box body, and the air duct is also located at the center of the top surface and the side wall.

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