Combined air filter screen and sub-efficient air filter

Abstract

The invention discloses a combined air filter screen and a sub-efficient air filter, and relates to the technical field of filters, the combined air filter screen comprises a sub filter screen and a filter screen frame fixedly bonded outside the sub filter screen, the sub filter screen is composed of at least one of a ninth filter screen, an eighth filter screen, a seventh filter screen, a sixth filter screen, a fifth filter screen, a fourth filter screen, a third filter screen, a second filter screen and a first filter screen, a carbon fiber heating screen for heating is arranged in the sub filter screen, and the heating temperature of the carbon fiber heating screen is 75-77 DEG C. According to the combined type air filter screen, the sub filter screen is composed of at least one of the ninth filter screen, the eighth filter screen, the seventh filter screen, the sixth filter screen, the fifth filter screen, the fourth filter screen, the third filter screen, the second filter screen and the first filter screen, the combined type air filter screen is composed of the sub filter screens, and therefore different sub filter screens can be selected to be combined to achieve air filtration according to filtration requirements; meanwhile, the filter screen frame is bonded and fixed outside the sub filter screens, so that two adjacent filter screen frames can approach each other after the sub filter screens are combined.

Description

Technical Field

[0001] The invention relates to the technical field of filters, and in particular to a combined air filter and a sub-high efficiency air filter. Background Art

[0002] Air filter refers to air filtering device, which is generally used in clean workshops, clean factories, laboratories and clean rooms, or for dust prevention of electronic machinery and communication equipment. There are primary filter, medium filter, high efficiency filter and sub-high efficiency filter. Various models have different standards and performance. The filter in the air filter is the core component, and the quality of the filter directly affects the filtering effect of the air filter.

[0003] After long-term use, the internal filter of the traditional air filter will absorb water vapor in the air due to the humidity in the air, causing the water content of the filter to increase, resulting in dust adhesion and loss of air filtering effect. At the same time, due to seasonal changes after the equipment is installed, the dust content and humidity of the external air are also different, so it is also necessary to combine filters of different specifications. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides the following technical solutions: a combined air filter, comprising a sub-filter and a filter frame bonded and fixed to the outside of the sub-filter, the sub-filter being composed of at least one of a ninth filter, an eighth filter, a seventh filter, a sixth filter, a fifth filter, a fourth filter, a third filter, a second filter and a first filter, a carbon fiber heating net for heating being arranged in the sub-filter, and the heating temperature of the carbon fiber heating net is 75-77°C.

[0005] As an improvement of the above technical solution, the ninth filter screen includes a second combed cotton filter screen and a second silver ion antibacterial cloth bonded in sequence from top to bottom, and the carbon fiber heating screen is located between the second combed cotton filter screen and the second silver ion antibacterial cloth. The eighth filter screen includes a first combed cotton filter screen and a first silver ion antibacterial cloth bonded in sequence from top to bottom, and one of the carbon fiber heating screens is located between the first combed cotton filter screen and the first silver ion antibacterial cloth.

[0006] As an improvement of the above technical solution, the seventh filter screen includes eight-level non-woven fabric, magnetic fiber cloth and seven-level non-woven fabric bonded in sequence from top to bottom, and one of the carbon fiber heating nets is arranged between the magnetic fiber cloth and the seven-level non-woven fabric. The sixth filter screen includes six-level non-woven fabric, titanium dioxide filter screen and five-level non-woven fabric bonded in sequence from top to bottom, and one of the carbon fiber heating nets is arranged between the titanium dioxide filter screen and the five-level non-woven fabric.

[0007] As an improvement of the above technical solution, the fifth filter screen includes four-stage non-woven fabric, zeolite fiber cloth and three-stage non-woven fabric bonded in sequence from top to bottom, one of the carbon fiber heating nets is located between the zeolite fiber cloth and the three-stage non-woven fabric, and the fourth filter screen includes three-stage filter screen, third activated carbon plate and three-stage copper ion antibacterial cloth bonded in sequence from top to bottom, one of the carbon fiber heating nets is located between the third activated carbon plate and the three-stage copper ion antibacterial cloth.

[0008] As an improvement of the above technical solution, the third filter screen includes a secondary copper ion antibacterial cloth, a second activated carbon plate and a secondary filter screen bonded in sequence from top to bottom, one of the carbon fiber heating screens is located between the second activated carbon plate and the secondary filter screen, and the second filter screen includes a primary filter screen, a first activated carbon plate and a secondary non-woven fabric bonded in sequence from top to bottom, one of the carbon fiber heating screens is located between the first activated carbon plate and the secondary non-woven fabric.

[0009] As an improvement of the above technical solution, the first filter screen includes a primary non-woven fabric, a primary copper ion antibacterial fabric, a primary fiber woven fabric and an electrostatic fiber fabric bonded in sequence from top to bottom, and one of the carbon fiber heating nets is located between the primary fiber woven fabric and the electrostatic fiber fabric.

[0010] A sub-high efficiency air filter of a combined air filter comprises a shell and a clamping mechanism arranged in the shell for clamping the combined air filter, the combined air filter is inserted into a groove opened on the side of the shell, fans for discharging air upward are also installed at both ends of the shell, an electromagnet is installed on the outer surface of the shell, an iron sheet is arranged in the end of the filter frame close to the electromagnet, and the electromagnet is fixed to the iron sheet by magnetic force when power is supplied.

[0011] As an improvement of the above technical solution, the clamping mechanism includes a limit support ring fixed on the inner surface of the shell, and the limit support ring contacts the upper part of the combined air filter. A sleeve is also fixed on the inner surface of the shell, and a top pipe is installed in the sleeve through a spring, and the upper end of the top pipe contacts the lower end of the combined air filter.

[0012] As an improvement of the above technical solution, a sealing rubber ring is fixed in a groove provided on the outer surface of the top pipe, and the sealing rubber ring is in contact with the inner side of the shell.

[0013] As an improvement of the above technical solution, protective nets for protecting the fan are fixed to both ends of the shell.

[0014] Beneficial effects of the present invention:

[0015] 1. The sub-filters are composed of at least one of the ninth filter, the eighth filter, the seventh filter, the sixth filter, the fifth filter, the fourth filter, the third filter, the second filter and the first filter, so that the combined air filter is composed of the sub-filters, so that different sub-filters can be selected for combination according to filtering requirements to filter the air. At the same time, filter frames are bonded and fixed to the outside of the sub-filters, so that two adjacent filter frames are close to each other after the sub-filters are combined. A carbon fiber heating net is arranged inside the sub-filter, so that the water vapor inside the sub-filter is evaporated after being heated by the carbon fiber heating net, so as to keep the combined air filter dry and avoid the problem of weakened filtration caused by excessive water content in the filter.

[0016] 2. Through the ninth filter composed of the second combed cotton filter and the second silver ion antibacterial cloth, the second combed cotton filter provides air filtration for the ninth filter, and the second silver ion antibacterial cloth provides antibacterial for the ninth filter. Through the eighth filter composed of the first combed cotton filter and the first silver ion antibacterial cloth, the first combed cotton filter provides air filtration for the eighth filter, and the first silver ion antibacterial cloth provides antibacterial for the eighth filter, so that the ninth filter and the eighth filter are combined to achieve the antibacterial and filtering effects of the filter. At the same time, one of the carbon fiber heating nets is located between the second combed cotton filter and the second silver ion antibacterial cloth, and the other carbon fiber heating net is located between the first combed cotton filter and the first silver ion antibacterial cloth, so that after the carbon fiber heating net heats the ninth filter and the eighth filter, the purpose of dehumidification after the filter is heated is achieved.

[0017] 3. The seventh filter composed of the eighth-level non-woven fabric, the magnetic fiber cloth and the seventh-level non-woven fabric is convenient for the eighth-level non-woven fabric and the seventh-level non-woven fabric to provide air filtration for the seventh filter, and the magnetic fiber cloth provides the seventh filter with magnetic filtration of the air. The sixth filter composed of the sixth-level non-woven fabric, the titanium dioxide filter and the fifth-level non-woven fabric is convenient for the sixth filter to provide air filtration, and the titanium dioxide filter provides the sixth filter to remove formaldehyde from the air, so that the seventh filter and the sixth filter are combined to achieve the effects of filtering, magnetic dust removal and formaldehyde removal. At the same time, one of the carbon fiber heating nets is located between the magnetic fiber cloth and the seventh-level non-woven fabric, and the other carbon fiber heating net is located between the titanium dioxide filter and the fifth-level non-woven fabric, so that the carbon fiber heating net heats the seventh filter and the sixth filter to achieve the purpose of dehumidification after the filter is heated.

[0018] 4. Through the fifth filter composed of the fourth-level non-woven fabric, the zeolite fiber cloth and the third-level non-woven fabric, the fourth-level non-woven fabric and the third-level non-woven fabric provide air filtration for the fifth filter, and the zeolite fiber cloth provides the fifth filter to dry the air. Through the fourth filter composed of the third-level filter, the third activated carbon plate and the third-level copper ion antibacterial cloth, the third-level filter provides air filtration for the fourth filter, and the third activated carbon plate provides the fourth filter to remove odor from the air, and the third-level copper ion antibacterial cloth provides antibacterial for the fourth filter, so that the fifth filter and the fourth filter are combined to achieve the effects of filtering, drying and removing odor. At the same time, one of the carbon fiber heating nets is located between the zeolite fiber cloth and the third-level non-woven fabric, and the other carbon fiber heating net is located between the third activated carbon plate and the third-level copper ion antibacterial cloth, so that the carbon fiber heating net heats the fifth filter and the fourth filter to achieve the purpose of dehumidification after the filter is heated.

[0019] 5. Through the third filter composed of the secondary copper ion antibacterial cloth, the second activated carbon plate and the secondary filter, the secondary filter provides air filtration for the third filter, and the second activated carbon plate provides the third filter to remove odor from the air, and the secondary copper ion antibacterial cloth provides antibacterial for the third filter. Through the second filter composed of the primary filter, the first activated carbon plate and the secondary non-woven fabric, the primary filter and the secondary non-woven fabric provide air filtration for the second filter, and the first activated carbon plate provides the second filter to remove odor from the air, so that the third filter and the second filter are combined to achieve the filtering, antibacterial and odor removal effects of the filter. At the same time, one of the carbon fiber heating nets is located between the second activated carbon plate and the secondary filter, and the other carbon fiber heating net is located between the first activated carbon plate and the secondary non-woven fabric, so that the carbon fiber heating net heats the third filter and the second filter to achieve the purpose of dehumidification after the filter is heated.

[0020] 6. Through the first filter composed of primary non-woven fabric, primary copper ion antibacterial fabric, primary fiber woven fabric and electrostatic fiber fabric, the primary non-woven fabric and primary fiber woven fabric provide air filtration for the first filter, the primary copper ion antibacterial fabric provides antibacterial for the first filter, and the electrostatic fiber fabric provides electrostatic dust removal for the first filter, thereby facilitating the first filter to achieve the effects of filtering, antibacterial and electrostatic dust removal. At the same time, another carbon fiber heating net is located between the primary copper ion antibacterial cloth and the primary fiber woven fabric, so that after the carbon fiber heating net heats the first filter, the purpose of dehumidification after the filter is heated is achieved.

[0021] 7. A sub-high efficiency air filter of an air filter including a shell, a combined air filter, a clamping mechanism, an iron sheet, an electromagnet and a fan, wherein the combined air filter is installed inside the shell by the clamping mechanism, and the iron sheet and the electromagnet are used to position the combined air filter, thereby facilitating free combination and positioning of the combined air filter, providing convenience for air filter combination, and the fan provides air flow, thereby facilitating air filtering through the combined air filter in the shell, thereby achieving the purpose of air filtration.

[0022] 8. A clamping mechanism consisting of a limit support ring, a sleeve, a spring and a top pipe is provided. The limit support ring is used to support the upper part of the combined air filter, and one end of the top pipe is movably installed inside the sleeve through a spring, while the upper end of the top pipe is located at the lower part of the combined air filter, so that the top pipe can support the combined air filter under the action of the spring, thereby increasing the stability of the combined air filter installed in the shell.

[0023] 9. A sealing rubber ring bonded in a groove is provided on the outer surface of the top pipe, and the sealing rubber ring contacts the inner side of the shell, so that when the top pipe is extended or retracted, the sealing rubber ring slides on the inner surface of the shell, thereby facilitating the top pipe and the shell to be sealed through the sealing rubber ring, thereby achieving sealing of the combined air filter and the shell with different numbers of sub-filters installed, avoiding the inability to delete or increase the combined air filter due to traditional fixed windows, and providing adaptability of the combined air filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 It is a cross-sectional structural diagram of the present invention;

[0026] Figure 3 for Figure 2 The enlarged structure diagram at A in the middle;

[0027] Figure 4 for Figure 2 The enlarged structure diagram at B in the middle;

[0028] Figure 5 It is the structural diagram of the air filter in the present invention.

[0029] Figure numerals: 1, shell; 2, filter frame; 3, ninth filter; 31, second combed cotton filter; 32, second silver ion antibacterial cloth; 33, carbon fiber heating net; 4, eighth filter; 41, first combed cotton filter; 42, first silver ion antibacterial cloth; 5, seventh filter; 51, eighth level non-woven fabric; 52, magnetic fiber cloth; 53, seventh level non-woven fabric; 6, sixth filter; 61, sixth level non-woven fabric; 62, titanium dioxide filter; 63, fifth level non-woven fabric; 7, fifth filter; 71, fourth level non-woven fabric; 72, zeolite fiber cloth; 73, third level non-woven fabric; 8, fourth filter; 81, third level filter; 82, The third activated carbon plate; 83, the third level copper ion antibacterial cloth; 9, the third filter; 91, the second level copper ion antibacterial cloth; 92, the second activated carbon plate; 93, the second level filter; 10, the second filter; 101, the primary filter; 102, the first activated carbon plate; 103, the second level non-woven fabric; 11, the first filter; 111, the primary non-woven fabric; 112, the primary copper ion antibacterial cloth; 113, the primary fiber woven fabric; 114, the electrostatic fiber fabric; 12, the iron sheet; 13, the electromagnet; 14, the limit support ring; 15, the sleeve; 16, the spring; 17, the top pipe; 18, the sealing rubber ring; 19, the fan; 20, the protective net. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] See also Figure 1-5 The present invention provides a technical solution: a combined air filter, including a sub-filter and a filter frame 2 bonded and fixed outside the sub-filter, the sub-filter is composed of at least one of a ninth filter 3, an eighth filter 4, a seventh filter 5, a sixth filter 6, a fifth filter 7, a fourth filter 8, a third filter 9, a second filter 10 and a first filter 11, and a carbon fiber heating net 33 for heating is arranged in the sub-filter, and the heating temperature of the carbon fiber heating net 33 is 75-77°C.

[0032] In this embodiment, by using a sub-filter composed of at least one of the ninth filter 3, the eighth filter 4, the seventh filter 5, the sixth filter 6, the fifth filter 7, the fourth filter 8, the third filter 9, the second filter 10 and the first filter 11, the combined air filter is composed of sub-filters, so that different sub-filters can be selected for combination to achieve air filtering according to filtering requirements, and at the same time, a filter frame 2 is bonded and fixed to the outside of the sub-filter, so that two adjacent filter frames 2 are close to each other after the sub-filters are combined, and a carbon fiber heating net 33 is arranged in the sub-filter, so that the water vapor inside the sub-filter is evaporated after being heated by the carbon fiber heating net 33, so as to keep the combined air filter dry and avoid the problem of weakened filtration caused by excessive water content in the filter.

[0033] Specifically, the ninth filter screen 3 includes a second combed cotton filter screen 31 and a second silver ion antibacterial cloth 32 bonded in sequence from top to bottom, and the carbon fiber heating screen 33 is located between the second combed cotton filter screen 31 and the second silver ion antibacterial cloth 32. The eighth filter screen 4 includes a first combed cotton filter screen 41 and a first silver ion antibacterial cloth 42 bonded in sequence from top to bottom, and one of the carbon fiber heating screens 33 is located between the first combed cotton filter screen 41 and the first silver ion antibacterial cloth 42.

[0034] In this embodiment, through the ninth filter screen 3 composed of the second combed cotton filter screen 31 and the second silver ion antibacterial cloth 32, the second combed cotton filter screen 31 provides air filtration for the ninth filter screen 3, and the second silver ion antibacterial cloth 32 provides antibacterial for the ninth filter screen 3. Through the eighth filter screen 4 composed of the first combed cotton filter screen 41 and the first silver ion antibacterial cloth 42, the first combed cotton filter screen 41 provides air filtration for the eighth filter screen 4, and the first silver ion antibacterial cloth 42 provides antibacterial for the eighth filter screen 4, so that the ninth filter screen 3 and the eighth filter screen 4 are combined to achieve the antibacterial and filtering effects of the filter screen. At the same time, one of the carbon fiber heating nets 33 is located between the second combed cotton filter screen 31 and the second silver ion antibacterial cloth 32, and the other carbon fiber heating net 33 is located between the first combed cotton filter screen 41 and the first silver ion antibacterial cloth 42, so that after the carbon fiber heating net 33 heats the ninth filter screen 3 and the eighth filter screen 4, the purpose of dehumidification after the filter screen is heated is achieved.

[0035] Specifically, the seventh filter screen 5 includes an eighth-level non-woven fabric 51, a magnetic fiber cloth 52 and a seventh-level non-woven fabric 53 bonded in sequence from top to bottom, wherein one carbon fiber heating net 33 is arranged between the magnetic fiber cloth 52 and the seventh-level non-woven fabric 53, and the sixth filter screen 6 includes a sixth-level non-woven fabric 61, a titanium dioxide filter screen 62 and a fifth-level non-woven fabric 63 bonded in sequence from top to bottom, wherein one carbon fiber heating net 33 is arranged between the titanium dioxide filter screen 62 and the fifth-level non-woven fabric 63.

[0036] In this embodiment, the seventh filter screen 5 composed of the eighth-level non-woven fabric 51, the magnetic fiber cloth 52 and the seventh-level non-woven fabric 53 is used to facilitate the eighth-level non-woven fabric 51 and the seventh-level non-woven fabric 53 to provide air filtration for the seventh filter screen 5, and the magnetic fiber cloth 52 provides the seventh filter screen 5 with magnetic filtration for the air, and the sixth filter screen 6 composed of the sixth-level non-woven fabric 61, the titanium dioxide filter screen 62 and the fifth-level non-woven fabric 63 is used to facilitate the sixth-level non-woven fabric 61 and the fifth-level non-woven fabric 63 to provide air filtration for the sixth filter screen 6, and the titanium dioxide filter screen 62 and the fifth-level non-woven fabric 63 are used to facilitate the sixth filter screen 6. The titanium dioxide filter 62 provides the sixth filter 6 to remove formaldehyde from the air, which makes it easier for the seventh filter 5 and the sixth filter 6 to achieve the filtering, magnetic dust removal and formaldehyde removal effects of the filter. At the same time, one of the carbon fiber heating nets 33 is located between the magnetic fiber cloth 52 and the seventh-level non-woven fabric 53, and the other carbon fiber heating net 33 is located between the titanium dioxide filter 62 and the fifth-level non-woven fabric 63, so that the carbon fiber heating net 33 heats the seventh filter 5 and the sixth filter 6 to achieve the purpose of dehumidification after the filter is heated.

[0037] Specifically, the fifth filter screen 7 includes a fourth-level non-woven fabric 71, a zeolite fiber cloth 72 and a third-level non-woven fabric 73 bonded in sequence from top to bottom, and one carbon fiber heating net 33 is located between the zeolite fiber cloth 72 and the third-level non-woven fabric 73. The fourth filter screen 8 includes a third-level filter screen 81, a third activated carbon plate 82 and a third-level copper ion antibacterial cloth 83 bonded in sequence from top to bottom, and one carbon fiber heating net 33 is located between the third activated carbon plate 82 and the third-level copper ion antibacterial cloth 83.

[0038] In this embodiment, the fifth filter screen 7 composed of the fourth-level non-woven fabric 71, the zeolite fiber cloth 72 and the third-level non-woven fabric 73 is used to facilitate the fourth-level non-woven fabric 71 and the third-level non-woven fabric 73 to provide air filtration for the fifth filter screen 7, and the zeolite fiber cloth 72 provides the fifth filter screen 7 to dry the air, and the fourth filter screen 8 composed of the third-level filter screen 81, the third activated carbon plate 82 and the third-level copper ion antibacterial cloth 83 is used to facilitate the third-level filter screen 81 to provide air filtration for the fourth filter screen 8, and the third activated carbon plate 82 provides the fourth filter screen 8 with air. The air is deodorized, and the three-stage copper ion antibacterial cloth 83 provides antibacterial effect for the fourth filter screen 8, so that the fifth filter screen 7 and the fourth filter screen 8 are combined to achieve the filtering, drying and deodorizing effects of the filter screen. At the same time, one of the carbon fiber heating nets 33 is located between the zeolite fiber cloth 72 and the three-stage non-woven fabric 73, and the other carbon fiber heating net 33 is located between the third activated carbon plate 82 and the three-stage copper ion antibacterial cloth 83, which is convenient for the carbon fiber heating net 33 to heat the fifth filter screen 7 and the fourth filter screen 8 to achieve the purpose of dehumidification after the filter screen is heated.

[0039] Specifically, the third filter screen 9 includes a secondary copper ion antibacterial cloth 91, a second activated carbon plate 92 and a secondary filter screen 93 bonded in sequence from top to bottom, and one carbon fiber heating net 33 is located between the second activated carbon plate 92 and the secondary filter screen 93. The second filter screen 10 includes a primary filter screen 101, a first activated carbon plate 102 and a secondary non-woven fabric 103 bonded in sequence from top to bottom, and one carbon fiber heating net 33 is located between the first activated carbon plate 102 and the secondary non-woven fabric 103.

[0040] In this embodiment, the third filter screen 9 composed of the secondary copper ion antibacterial cloth 91, the second activated carbon plate 92 and the secondary filter screen 93 is convenient for the secondary filter screen 93 to provide air filtration for the third filter screen 9, and the second activated carbon plate 92 provides the third filter screen 9 to remove odor from the air, and the secondary copper ion antibacterial cloth 91 provides antibacterial for the third filter screen 9, and the second filter screen 10 composed of the primary filter screen 101, the first activated carbon plate 102 and the secondary non-woven fabric 103 is convenient for the primary filter screen 101 and the secondary non-woven fabric 103 to provide the second filter screen 10 Provide air filtration, and the first activated carbon plate 102 provides the second filter 10 to remove odor from the air, so that the third filter 9 and the second filter 10 are combined to achieve the filtering, antibacterial and deodorizing effects of the filter. At the same time, one of the carbon fiber heating nets 33 is located between the second activated carbon plate 92 and the secondary filter 93, and the other carbon fiber heating net 33 is located between the first activated carbon plate 102 and the secondary non-woven fabric 103, so that the carbon fiber heating net 33 heats the third filter 9 and the second filter 10 to achieve the purpose of dehumidification after the filter is heated.

[0041] Specifically, the first filter screen 11 includes a primary non-woven fabric 111, a primary copper ion antibacterial fabric 112, a primary fiber woven fabric 113 and an electrostatic fiber fabric 114 bonded in sequence from top to bottom, wherein a carbon fiber heating net 33 is located between the primary fiber woven fabric 113 and the electrostatic fiber fabric 114.

[0042] In this embodiment, through the first filter screen 11 composed of the primary non-woven fabric 111, the primary copper ion antibacterial fabric 112, the primary fiber woven fabric 113 and the electrostatic fiber fabric 114, the primary non-woven fabric 111 and the primary fiber woven fabric 113 provide air filtration for the first filter screen 11, the primary copper ion antibacterial fabric 112 provides antibacterial for the first filter screen 11, and the electrostatic fiber fabric 114 provides electrostatic dust removal for the first filter screen 11, thereby facilitating the first filter screen 11 to achieve the filtering, antibacterial and electrostatic dust removal effects of the filter screen, and at the same time, another carbon fiber heating net 33 is located between the primary copper ion antibacterial cloth 112 and the primary fiber woven cloth 113, so that after the carbon fiber heating net 33 heats the first filter screen 11, the purpose of dehumidification after the filter screen is heated is achieved.

[0043] A sub-high efficiency air filter of a combined air filter comprises a shell 1 and a clamping mechanism arranged in the shell 1 for clamping the combined air filter. The combined air filter is inserted into a groove opened on the side of the shell 1. Fans 19 for discharging air upward are also installed at both ends of the shell 1. An electromagnet 13 is installed on the outer surface of the shell 1. An iron sheet 12 is arranged in one end of a filter frame 2 close to the electromagnet 13, and the electromagnet 13 is fixed to the iron sheet 12 by magnetic force when power is supplied.

[0044] In the present embodiment, a sub-high efficiency air filter is provided through an air filter including a shell 1, a combined air filter, a clamping mechanism, an iron sheet 12, an electromagnet 13 and a fan 19, and the combined air filter is installed inside the shell 1 through the clamping mechanism, and the iron sheet 12 and the electromagnet 13 are used for positioning the combined air filter, thereby facilitating the free combination and positioning of the air filter, providing convenience for the air filter combination, and the fan 19 provides air flow, thereby facilitating the air to be filtered through the combined air filter in the shell 1, thereby achieving the purpose of air filtration.

[0045] Specifically, the clamping mechanism includes a limit support ring 14 fixed on the inner surface of the shell 1, and the limit support ring 14 contacts the upper part of the combined air filter. A sleeve 15 is also fixed on the inner surface of the shell 1. A top pipe 17 is movably installed in the sleeve 15 through a spring 16, and the upper end of the top pipe 17 contacts the lower end of the combined air filter.

[0046] In this embodiment, a clamping mechanism consisting of a limit support ring 14, a sleeve 15, a spring 16 and a top pipe 17 is used, and the limit support ring 14 is used to support the upper part of the combined air filter, and one end of the top pipe 17 is movably installed inside the sleeve 15 through the spring 16, and the upper end of the top pipe 17 is located at the lower part of the combined air filter, so that the top pipe 17 can support the combined air filter under the action of the spring 16, thereby increasing the stability of the combined air filter installed in the shell 1.

[0047] Specifically, a sealing rubber ring 18 is fixed in a groove on the outer surface of the top pipe 17 , and the sealing rubber ring 18 is in contact with the inner side of the shell 1 .

[0048] In the present embodiment, a sealing rubber ring 18 is bonded in a groove formed on the outer surface of the top pipe 17, and the sealing rubber ring 18 contacts the inner side of the shell 1, so that when the top pipe 17 is extended or retracted, the sealing rubber ring 18 slides on the inner surface of the shell 1, thereby facilitating the top pipe 17 and the shell 1 to be sealed through the sealing rubber ring 18, thereby achieving sealing between the combined air filter installed with different numbers of sub-filters and the shell 1, avoiding the traditional fixed window opening that causes the combined air filter to be unable to be deleted or increased, and providing adaptability of the combined air filter.

[0049] Specifically, protective nets 20 for protecting the fan 19 are fixed to both ends of the housing 1 .

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. A combined air filter, characterized in that: The invention comprises a sub-filter and a filter frame (2) bonded and fixed to the outside of the sub-filter, wherein the sub-filter is composed of at least one of a ninth filter (3), an eighth filter (4), a seventh filter (5), a sixth filter (6), a fifth filter (7), a fourth filter (8), a third filter (9), a second filter (10) and a first filter (11), and a carbon fiber heating net (33) for heating is arranged inside the sub-filter, and the heating temperature of the carbon fiber heating net (33) is 75-77°C.

2. A combined air filter according to claim 1, characterized in that: The ninth filter screen (3) comprises a second combed cotton filter screen (31) and a second silver ion antibacterial cloth (32) bonded in sequence from top to bottom, and the carbon fiber heating screen (33) is located between the second combed cotton filter screen (31) and the second silver ion antibacterial cloth (32). The eighth filter screen (4) comprises a first combed cotton filter screen (41) and a first silver ion antibacterial cloth (42) bonded in sequence from top to bottom, and one of the carbon fiber heating screens (33) is located between the first combed cotton filter screen (41) and the first silver ion antibacterial cloth (42).

3. A combined air filter according to claim 2, characterized in that: The seventh filter screen (5) comprises an eighth-level non-woven fabric (51), a magnetic fiber fabric (52) and a seventh-level non-woven fabric (53) bonded in sequence from top to bottom, wherein one of the carbon fiber heating nets (33) is arranged between the magnetic fiber fabric (52) and the seventh-level non-woven fabric (53); the sixth filter screen (6) comprises a sixth-level non-woven fabric (61), a titanium dioxide filter screen (62) and a fifth-level non-woven fabric (63) bonded in sequence from top to bottom, wherein one of the carbon fiber heating nets (33) is arranged between the titanium dioxide filter screen (62) and the fifth-level non-woven fabric (63).

4. A combined air filter according to claim 3, characterized in that: The fifth filter screen (7) comprises a fourth-level non-woven fabric (71), a zeolite fiber fabric (72) and a third-level non-woven fabric (73) bonded in sequence from top to bottom, wherein one of the carbon fiber heating nets (33) is located between the zeolite fiber fabric (72) and the third-level non-woven fabric (73), and the fourth filter screen (8) comprises a third-level filter screen (81), a third activated carbon plate (82) and a third-level copper ion antibacterial fabric (83) bonded in sequence from top to bottom, wherein one of the carbon fiber heating nets (33) is located between the third activated carbon plate (82) and the third-level copper ion antibacterial fabric (83).

5. A combined air filter according to claim 4, characterized in that: The third filter screen (9) comprises a secondary copper ion antibacterial cloth (91), a second activated carbon plate (92) and a secondary filter screen (93) bonded in sequence from top to bottom, wherein one of the carbon fiber heating nets (33) is located between the second activated carbon plate (92) and the secondary filter screen (93), and the second filter screen (10) comprises a primary filter screen (101), a first activated carbon plate (102) and a secondary non-woven fabric (103) bonded in sequence from top to bottom, wherein one of the carbon fiber heating nets (33) is located between the first activated carbon plate (102) and the secondary non-woven fabric (103).

6. A combined air filter according to claim 5, characterized in that: The first filter screen (11) comprises a primary non-woven fabric (111), a primary copper ion antibacterial fabric (112), a primary fiber woven fabric (113) and an electrostatic fiber fabric (114) bonded in sequence from top to bottom, wherein one of the carbon fiber heating nets (33) is located between the primary fiber woven fabric (113) and the electrostatic fiber fabric (114).

7. A sub-high efficiency air filter of a combined air filter according to any one of claims 1 to 6, characterized in that: The invention comprises a housing (1) and a clamping mechanism for clamping a combined air filter arranged in the housing (1); the combined air filter is inserted into a groove provided on the side of the housing (1); fans (19) for discharging air upward are also installed at both ends of the housing (1); an electromagnet (13) is installed on the outer surface of the housing (1); an iron sheet (12) is arranged in one end of the filter frame (2) close to the electromagnet (13); and the electromagnet (13) is fixed to the iron sheet (12) by magnetic force when power is supplied.

8. The sub-high efficiency air filter of the combined air filter according to claim 7, characterized in that: The clamping mechanism comprises a limit support ring (14) fixed on the inner surface of the shell (1), and the limit support ring (14) contacts the upper part of the combined air filter. A sleeve (15) is also fixed on the inner surface of the shell (1), and a top pipe (17) is movably installed in the sleeve (15) via a spring (16), and the upper end of the top pipe (17) contacts the lower end of the combined air filter.

9. The sub-high efficiency air filter of the combined air filter according to claim 8, characterized in that: The outer surface of the top pipe (17) is provided with a groove in which a sealing rubber ring (18) is fixed, and the sealing rubber ring (18) is in contact with the inner side of the shell (1).

10. The sub-high efficiency air filter of the combined air filter according to claim 7, characterized in that: Protection nets (20) for protecting the fan (19) are fixed to both ends of the housing (1).

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