Capacitive voltage transformer

Abstract

The invention belongs to the technical field of voltage transformers, and discloses a capacitive voltage transformer which comprises a transformer shell. The porcelain bushing is arranged at the top of the surface of the mutual inductor shell; the lug plate is arranged in the middle of the top end of the mutual inductor shell; and the mounting block is arranged at the bottom end of the outer side of the mutual inductor shell. According to the technical scheme, the first spring is arranged, and the first spring is made of memory metal, so that heat can be transferred to the first spring after hot air in the mutual inductor shell rises and enters the hot air discharging pipe, the first spring is heated and extends, and the movable valve column can be smoothly pushed to move towards the outer side; therefore, hot air is discharged from an inner cavity of the hot air discharging pipe through a gap between the sealing ring block and the movable valve column, then cold air can enter the bottom of the inner cavity of the mutual inductor shell through the waterproof breathable net and the cold air inlet pipe, finally the hot air is discharged in a one-way mode, the cold air enters in a one-way mode, and the heat dissipation efficiency is greatly improved. And the heat dissipation effect is prevented from being influenced.

Description

Technical Field

[0001] The invention belongs to the technical field of voltage transformers, in particular to a capacitive voltage transformer. Background Art

[0002] The capacitive voltage transformer is mainly composed of two parts: a capacitive voltage divider and a medium-voltage transformer. The capacitive voltage divider consists of a porcelain sleeve and several series capacitors installed in it. The porcelain sleeve is filled with insulating oil that maintains a certain positive pressure, and a steel bellows is used to balance different environments to maintain the oil pressure. The medium-voltage transformer consists of a transformer installed in a sealed oil tank, a compensating inductor and a damping device.

[0003] During the use of the existing capacitive voltage transformer, a large amount of heat will be generated inside the shell. Since the interior of the transformer needs to be kept sealed to prevent moisture from entering, the heat needs to be conducted to the shell, and then the corresponding heat dissipation device is set outside to dissipate the heat inside. However, the heat is slowly conducted to the shell, which is inefficient and greatly reduces the heat dissipation effect. Therefore, it needs to be improved. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a capacitive voltage transformer, which has the advantage of facilitating improving the heat dissipation effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a capacitive voltage transformer, comprising a transformer housing; a porcelain sleeve, arranged on the top of the transformer housing surface; a wiring piece, arranged in the middle of the top of the transformer housing; a mounting block, arranged at the bottom end of the outer side of the transformer housing; a hot air exhaust pipe, fixedly connected to the outer side of the transformer housing and located below the porcelain sleeve; a one-way valve group, comprising a fixing ring, the fixing ring is arranged in the inner cavity of the hot air exhaust pipe, the inner cavity of the hot air exhaust pipe is provided with a sealing ring block located on the outer side of the fixing ring, the inner cavity of the hot air exhaust pipe is movably installed with a movable valve column located on the outer side of the sealing ring block, and the inner side of the movable valve column is elastically connected to the outer side of the fixing ring through a first spring.

[0006] Preferably, the number of the mounting blocks is four, and a mounting hole is formed in the middle of the four mounting blocks.

[0007] Preferably, the first spring is made of memory metal.

[0008] Preferably, a transmission assembly located on the surface of the hot gas exhaust pipe is fixedly installed on the outer side of the movable valve column, and the transmission assembly includes a sliding block, a connecting frame and a transmission push plate;

[0009] The sliding block is arranged outside the movable valve column and is located on the inner wall of the hot gas exhaust pipe. The connecting frame is fixedly installed on the outside of the sliding block, and the transmission push plate is fixedly installed on the inner bottom of the connecting frame.

[0010] Preferably, the bottom end of the outer side of the transformer housing is fixedly connected to a cold air inlet pipe, the outer end of the inner cavity of the cold air inlet pipe is provided with a waterproof breathable net, and the inner side of the inner cavity of the cold air inlet pipe is provided with a shielding component.

[0011] Preferably, the shielding assembly comprises a shielding plate, a mounting frame and an inclined panel;

[0012] The shielding plate is movably installed on the outer side of the inner cavity of the cold air inlet pipe, the mounting frame is arranged at the middle part of the outer side of the shielding plate, and the inclined panel is arranged on the top of the mounting frame.

[0013] Preferably, the inner inclined surface of the inclined plate and the outer inclined surface of the transmission push plate have the same angle.

[0014] Preferably, the inner wall of the cold air inlet pipe is provided with an ash pushing component located inside the waterproof breathable net, and the ash pushing component includes a movable frame, a sliding rod, a second spring and an ash vibrating member;

[0015] The movable frame is movably installed on the top of the cold air inlet pipe surface and is located on the inner side of the waterproof breathable net. The sliding rod is arranged inside the cold air inlet pipe and is located inside the bottom end of the movable frame. The movable frame is elastically connected to the inner wall of the cold air inlet pipe through a second spring. The ash vibrating member is arranged on the inner side of the bottom end of the movable frame.

[0016] Preferably, the ash vibrating member comprises an ash vibrating block and a protective sleeve;

[0017] The ash vibrating block is arranged on the inner side of the bottom end of the movable frame, the protective cover is arranged on the outer side of the ash vibrating block, and the edge of the waterproof and breathable net is made of metal.

[0018] Preferably, a fixed shell located between the movable frame and the inclined plate is provided at the top of the cold air inlet pipe, and a driving assembly is provided inside the fixed shell, and the driving assembly includes a driven gear, an elliptical push block and a driving gear block;

[0019] The driven gear is movably sleeved on the outside of the inner cavity of the fixed shell, the elliptical push block is fixedly sleeved on the top of the driven gear and is located on the top surface of the fixed shell, the driven gear is arranged on the inner end of the outer side of the inclined plate, and the surface of the driven gear is meshed with the active gear block.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The above technical solution is achieved by setting a first spring. Since the first spring is made of memory metal, when the hot air inside the transformer housing rises and enters the hot air exhaust pipe, the heat will be transferred to the first spring, causing the first spring to expand due to the heat, thereby smoothly pushing the movable valve column to move outward, so that the hot air can be discharged from the inner cavity of the hot air exhaust pipe through the gap between the sealing ring block and the movable valve column, and then the cold air can enter the bottom of the inner cavity of the transformer housing through the waterproof breathable net and the cold air inlet pipe, and finally the hot air is discharged in one direction and the cold air enters in one direction, thereby greatly improving the heat dissipation efficiency and avoiding affecting the heat dissipation effect.

[0022] The present invention provides a transmission component and a shielding component. The movable valve column moves outward, so that the transmission component can smoothly drive the shielding component to move as a whole, thereby releasing the shielding seal on the inner wall of the cold air inlet pipe in the middle part of the shielding component, allowing external cold air to smoothly pass through the waterproof breathable net and the cold air inlet pipe into the bottom of the transformer housing, thereby achieving cooling of the cold air entering. When the first spring is cooled, it will recover, so that the transmission component drives the shielding component to shield the cold air inlet pipe, and the movable valve column is reset to shield the hot air exhaust pipe, thereby achieving shielding and sealing of the cold air inlet pipe and the hot air exhaust pipe, thereby maintaining the sealing effect on the inside of the transformer housing to prevent external moisture from entering.

[0023] The present invention provides a dust pushing component and a driving component. When the shielding component is driven by the transmission component, the driving component outside the shielding component synchronously drives the dust pushing component as a whole to move outward. Then, the inner end of the dust pushing component located at one edge of the waterproof breathable net will move outward and lightly collide with the metal part of the edge of the waterproof breathable net, so that the waterproof breathable net as a whole can vibrate. Since the driving component collides outward, the dust and impurities attached to the outer surface of the waterproof breathable net can be smoothly shaken off by the outward vibration, so as to maintain the fluidity of the gas in the waterproof breathable net and avoid the waterproof breathable net from being blocked to affect the entry of cold air. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a transformer housing of the present invention;

[0026] Figure 3 is a schematic cross-sectional structural diagram of the first spring of the present invention;

[0027] Figure 4 is a schematic cross-sectional structural diagram of a shielding assembly of the present invention;

[0028] Figure 5 It is a cross-sectional structural schematic diagram of the cold air inlet pipe of the present invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at point A in the middle;

[0030] Figure 7 It is a partial structural schematic diagram of the one-way valve group of the present invention;

[0031] Figure 8 for Figure 7 Schematic diagram of the local enlarged structure at point B in the middle.

[0032] In the figure: 1. transformer housing; 2. porcelain sleeve; 3. terminal block; 4. mounting block; 5. hot air exhaust pipe; 6. one-way valve group; 601. fixed ring; 602. sealing ring block; 603. movable valve column; 604. first spring; 7. cold air inlet pipe; 8. waterproof breathable net; 9. transmission assembly; 901. sliding block; 902. connecting frame; 903. transmission push plate; 10. shielding assembly; 101. shielding plate; 102. mounting frame; 103. inclined panel; 11. ash pushing assembly; 1101. movable frame; 1102. sliding rod; 1103. second spring; 1104. ash vibrating member; 11041. ash vibrating block; 11042. protective cover; 12. fixed shell; 13. driving assembly; 1301. driven gear; 1302. elliptical push block; 1303. active gear block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 8 As shown, the present invention provides a capacitive voltage transformer, including a transformer housing 1; a porcelain sleeve 2, which is arranged on the top of the surface of the transformer housing 1; a wiring piece 3, which is arranged in the middle of the top of the transformer housing 1; a mounting block 4, which is arranged at the bottom end of the outer side of the transformer housing 1; a hot air exhaust pipe 5, which is fixedly connected to the outer side of the transformer housing 1 and is located below the porcelain sleeve 2; a one-way valve group 6, including a fixing ring 601, the fixing ring 601 is arranged in the inner cavity of the hot air exhaust pipe 5, the inner cavity of the hot air exhaust pipe 5 is provided with a sealing ring block 602 located on the outer side of the fixing ring 601, the inner cavity of the hot air exhaust pipe 5 is movably installed with a movable valve column 603 located on the outer side of the sealing ring block 602, and the inner side of the movable valve column 603 is elastically connected to the outer side of the fixing ring 601 through a first spring 604.

[0035] When the first spring 604 pushes the movable valve column 603 to move outward as a whole, a gap is generated between the sealing ring block 602 and the movable valve column 603, and the hot gas inside the hot gas exhaust pipe 5 will be discharged from the inner cavity of the hot gas exhaust pipe 5 through the gap, thereby achieving the purpose of one-way discharge of hot gas.

[0036] like Figure 1 As shown, there are four mounting blocks 4 , and mounting holes are formed in the middle of the four mounting blocks 4 .

[0037] With the above solution, through the design of the mounting hole in the middle of the mounting block 4 , the operator can use the bolt structure and install the entire transformer housing 1 at a specific node of the transmission line through the mounting hole in the middle of the mounting block 4 .

[0038] like Figure 2 , Figure 3 and Figure 7 As shown, the first spring 604 is made of memory metal.

[0039] The above scheme is adopted: by providing a first spring 604, since the memory metal has the characteristics of extending when heated and returning to its original state when cooled, when the first spring 604 is subjected to the heat conducted by the hot air on the top of the transformer housing 1, the first spring 604 will extend, thereby pushing the movable valve column 603 to move smoothly outward as a whole, so that the hot air can be discharged smoothly. When encountering rainy or snowy weather and there is no heat inside the transformer housing 1, the first spring 604 will return to its original state and drive the movable valve column 603 to reset as a whole, so that the movable valve column 603 can seal the inside of the hot air exhaust pipe 5 to prevent external moisture from entering.

[0040] like Figure 3 and Figure 7 As shown, a transmission assembly 9 located on the surface of the hot gas exhaust pipe 5 is fixedly installed on the outer side of the movable valve column 603, and the transmission assembly 9 includes a sliding block 901, a connecting frame 902 and a transmission push plate 903;

[0041] The sliding block 901 is arranged outside the movable valve column 603 and is located on the inner wall of the hot gas exhaust pipe 5 . The connecting frame 902 is fixedly installed outside the sliding block 901 . The transmission push plate 903 is fixedly installed on the inner bottom of the connecting frame 902 .

[0042] By adopting the above solution, through the design of the sliding block 901, the movable valve column 603 can be limited when it moves outward, and the distance that the movable valve column 603 moves outward can be limited.

[0043] like Figures 2 to 5 As shown, the bottom end of the outer side of the transformer housing 1 is fixedly connected with a cold air inlet pipe 7, the outer end of the inner cavity of the cold air inlet pipe 7 is provided with a waterproof breathable net 8, and the inner side of the inner cavity of the cold air inlet pipe 7 is provided with a shielding component 10.

[0044] The above scheme is adopted: through the design of the waterproof breathable net 8, the moisture in the cold air entering the cold air inlet pipe 7 from the outside can be blocked out, which has a good waterproof effect and keeps the cold air inlet pipe 7 and the inner cavity of the transformer housing 1 dry.

[0045] like Figure 4 and Figure 5 As shown, the shielding assembly 10 includes a shielding plate 101, a mounting frame 102 and a sloped panel 103;

[0046] The shielding plate 101 is movably mounted on the outer side of the inner cavity of the cold air inlet pipe 7 , the mounting frame 102 is arranged at the middle part of the outer side of the shielding plate 101 , and the inclined panel 103 is arranged on the top of the mounting frame 102 .

[0047] By adopting the above solution, the shielding plate 101 is provided, and the shielding plate 101 moves toward or away from each other as a whole, so as to achieve the purpose of sealing and opening the inner cavity of the cold air inlet pipe 7.

[0048] like Figure 3 As shown, the inner inclined surface of the inclined plate 103 and the outer inclined surface of the transmission push plate 903 have the same angle.

[0049] The above scheme is adopted: by providing an inclined panel 103, when the transmission push plate 903 is driven to move outward as a whole, the inclined surface on the outside of the transmission push plate 903 will contact the inclined surface on the inside of the inclined panel 103, and the inclined surface on the outside of the transmission push plate 903 will slide on the inclined surface on the inside of the inclined panel 103 to squeeze the inclined panel 103, the mounting frame 102 and the shielding plate 101 to move in opposite directions as a whole, so that the shielding plate 101 moves in opposite directions to release the blocking and sealing of the inner cavity of the cold air inlet pipe 7, so that the external cold air can enter the bottom of the inner cavity of the transformer housing 1 through the waterproof breathable net 8 and the cold air inlet pipe 7 for replenishment.

[0050] like Figure 5 and Figure 8 As shown, the inner wall of the cold air inlet pipe 7 is provided with an ash pushing assembly 11 located inside the waterproof breathable net 8, and the ash pushing assembly 11 includes a movable frame 1101, a sliding rod 1102, a second spring 1103 and an ash vibrating member 1104;

[0051] The movable frame 1101 is movably installed on the top of the surface of the cold air inlet pipe 7 and is located on the inner side of the waterproof breathable net 8. The sliding rod 1102 is arranged inside the cold air inlet pipe 7 and is located inside the bottom end of the movable frame 1101. The movable frame 1101 is elastically connected to the inner wall of the cold air inlet pipe 7 through the second spring 1103. The dust vibrating piece 1104 is arranged on the inner side of the bottom end of the movable frame 1101.

[0052] The above scheme is adopted: by providing a second spring 1103, when the movable frame 1101 moves outward as a whole, the second spring 1103 will be squeezed as a whole, and when the movable frame 1101 releases the thrust to move outward, the elastic force of the second spring 1103 will be released, and the movable frame 1101 and the ash vibrating piece 1104 will be smoothly pushed to reset toward each other as a whole.

[0053] like Figure 5 and Figure 8 As shown, the ash vibrating member 1104 includes an ash vibrating block 11041 and a protective cover 11042;

[0054] The ash-vibrating block 11041 is arranged on the inner side of the bottom end of the movable frame 1101, the protective cover 11042 is arranged on the outer side of the ash-vibrating block 11041, and the edge of the waterproof and breathable net 8 is made of metal.

[0055] The above scheme is adopted: by providing a protective cover 11042, the protective cover 11042 is made of rubber. At this time, since rubber has a good deformation buffering ability, the movable frame 1101 can drive the ash vibrating block 11041 to move in opposite directions as a whole so that when the protective cover 11042 contacts the metal frame at the edge of the waterproof breathable net 8, the ash vibrating block 11041 protects and at the same time makes the contact make the waterproof breathable net 8 vibrate as a whole, and the dust and impurities on the outside of the waterproof breathable net 8 will be vibrated off and discharged.

[0056] like Figure 3 and Figure 8 As shown, a fixed shell 12 located between the movable frame 1101 and the inclined plate 103 is provided on the top of the cold air inlet pipe 7, and a driving assembly 13 is provided inside the fixed shell 12. The driving assembly 13 includes a driven gear 1301, an elliptical push block 1302 and a driving gear block 1303;

[0057] The driven gear 1301 is movably sleeved on the outside of the inner cavity of the fixed shell 12, and the elliptical push block 1302 is fixedly sleeved on the top of the driven gear 1301 and is located on the top surface of the fixed shell 12. The driven gear 1301 is arranged on the inner end of the outer side of the inclined plate 103, and the surface of the driven gear 1301 is meshed with the active gear block 1303.

[0058] The above scheme is adopted: by providing an active tooth block 1303, when the two inclined panels 103 move in opposite directions, the active tooth block 1303 will drive the teeth on the surface of the driven gear 1301, and drive the driven gear 1301 and the elliptical push block 1302 to rotate ninety degrees outward as a whole, so that the movable frame 1101 and the ash vibrating piece 1104 can be pushed outward as a whole through the rotation of the elliptical push block 1302, and finally the outer end of the ash vibrating piece 1104 will collide and vibrate with the metal edge of the waterproof breathable net 8.

[0059] The working principle and use process of the present invention:

[0060] First, the operator can install the entire transformer housing 1 at a specific node position of the power transmission line through the installation block 4, and install the wires on the top through the top terminal piece 3 to achieve measurement and transmission of voltage signals.

[0061] When the transformer housing 1 is in overall operation and generates a large amount of heat inside, the hot air will accumulate upward and enter the hot gas exhaust pipe 5. At this time, the hot air will transfer heat to the first spring 604. Due to the characteristics of memory metal, it will expand due to heat, so that the first spring 604 can smoothly push the movable valve column 603 to move outward until the movable valve column 603 moves to the outermost end. At this time, the hot air inside the hot gas exhaust pipe 5 will pass through the gap between the movable valve column 603 and the sealing ring block 602 and be discharged from the outer end of the hot gas exhaust pipe 5.

[0062] When the movable valve column 603 moves to the outermost end, the sliding block 901 will drive the connecting frame 902 and the transmission push plate 903 to slide outward to the outermost end as a whole. At this time, the outer inclined surface of the transmission push plate 903 will slide along the inner inclined surface of the inclined panel 103, and smoothly squeeze and push the two inclined panels 103, the mounting frame 102 and the baffle plate 101 to move away from each other as a whole, until the baffle plate 101 is back to back and completely releases the blocking seal on the inner cavity of the cold air inlet pipe 7.

[0063] At the same time, the active tooth block 1303 at the inner end of the outer side of the inclined plate 103 will drive the meshing driven gear 1301 and the elliptical push block 1302 to rotate as a whole. At this time, the elliptical push block 1302 will rotate ninety degrees to push the movable frame 1101 and the dust vibrating member 1104 to move outward as a whole, so that the edge of the waterproof and breathable net 8 is impacted to vibrate and the dust attached to the outer surface is vibrated away, and finally the external cold air can smoothly pass through the waterproof and breathable net 8 and the cold air inlet pipe 7 to enter the bottom of the inner cavity of the transformer housing 1 for replenishment, and the hot air is discharged unidirectionally from the top and the cold air enters unidirectionally from the bottom, thereby realizing efficient heat dissipation and cooling treatment of the inside of the transformer housing 1.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A capacitive voltage transformer, characterized in that: It comprises a transformer housing (1); A porcelain sleeve (2) is arranged on the top of the surface of the transformer housing (1); A wiring piece (3) is arranged in the middle of the top end of the transformer housing (1); A mounting block (4) is arranged at the bottom end of the outer side of the transformer housing (1); A hot gas exhaust pipe (5) is fixedly connected to the outside of the transformer housing (1) and is located below the porcelain sleeve (2); The one-way valve assembly (6) comprises a fixed ring (601), the fixed ring (601) being arranged in the inner cavity of the hot gas exhaust pipe (5), the inner cavity of the hot gas exhaust pipe (5) being provided with a sealing ring block (602) located outside the fixed ring (601), the inner cavity of the hot gas exhaust pipe (5) being movably provided with a movable valve column (603) located outside the sealing ring block (602), the inner side of the movable valve column (603) being elastically connected to the outer side of the fixed ring (601) via a first spring (604).

2. The capacitive voltage transformer according to claim 1, characterized in that: The number of the mounting blocks (4) is four, and mounting holes are provided in the middle of the four mounting blocks (4).

3. The capacitive voltage transformer according to claim 1, characterized in that: The first spring (604) is made of memory metal.

4. The capacitive voltage transformer according to claim 1, characterized in that: A transmission assembly (9) located on the surface of the hot gas exhaust pipe (5) is fixedly mounted on the outer side of the movable valve column (603), and the transmission assembly (9) comprises a sliding block (901), a connecting frame (902) and a transmission push plate (903); The sliding block (901) is arranged on the outside of the movable valve column (603) and is located on the inner wall of the hot gas exhaust pipe (5); the connecting frame (902) is fixedly installed on the outside of the sliding block (901); and the transmission push plate (903) is fixedly installed on the inner bottom of the connecting frame (902).

5. The capacitive voltage transformer according to claim 1, characterized in that: The bottom end of the outer side of the transformer housing (1) is fixedly connected to a cold air inlet pipe (7), the outer end of the inner cavity of the cold air inlet pipe (7) is provided with a waterproof breathable net (8), and the inner side of the inner cavity of the cold air inlet pipe (7) is provided with a shielding component (10).

6. The capacitive voltage transformer according to claim 5, characterized in that: The shielding assembly (10) comprises a shielding plate (101), a mounting frame (102) and an inclined panel (103); The shielding plate (101) is movably mounted on the outside of the inner cavity of the cold air inlet pipe (7), the mounting frame (102) is arranged at the middle part of the outside of the shielding plate (101), and the inclined panel (103) is arranged on the top of the mounting frame (102).

7. The capacitive voltage transformer according to claim 6, characterized in that: The inner inclined surface of the inclined plate (103) and the outer inclined surface of the transmission push plate (903) have the same angle.

8. The capacitive voltage transformer according to claim 5, characterized in that: The inner wall of the cold air inlet pipe (7) is provided with an ash pushing component (11) located inside the waterproof breathable net (8), and the ash pushing component (11) includes a movable frame (1101), a sliding rod (1102), a second spring (1103) and an ash vibrating member (1104); The movable frame (1101) is movably mounted on the top of the surface of the cold air inlet pipe (7) and is located on the inner side of the waterproof breathable net (8); the sliding rod (1102) is arranged inside the cold air inlet pipe (7) and is located inside the bottom end of the movable frame (1101); the movable frame (1101) is elastically connected to the inner wall of the cold air inlet pipe (7) via a second spring (1103); and the ash vibrating member (1104) is arranged on the inner side of the bottom end of the movable frame (1101).

9. The capacitive voltage transformer according to claim 8, characterized in that: The ash vibrating member (1104) comprises an ash vibrating block (11041) and a protective sleeve (11042); The ash vibrating block (11041) is arranged on the inner side of the bottom end of the movable frame (1101), the protective cover (11042) is arranged on the outer side of the ash vibrating block (11041), and the edge of the waterproof and breathable net (8) is made of metal.

10. The capacitive voltage transformer according to claim 5, characterized in that: A fixed shell (12) located between the movable frame (1101) and the inclined plate (103) is arranged on the top of the cold air inlet pipe (7), and a driving assembly (13) is arranged inside the fixed shell (12), and the driving assembly (13) includes a driven gear (1301), an elliptical push block (1302) and a driving gear block (1303); The driven gear (1301) is movably sleeved on the outside of the inner cavity of the fixed shell (12); the elliptical push block (1302) is fixedly sleeved on the top of the driven gear (1301) and is located on the top surface of the fixed shell (12); the driven gear (1301) is arranged on the inner end of the outer side of the inclined plate (103); and the surface of the driven gear (1301) is meshed with the active gear block (1303).

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