Transformer air duct and transformer

Abstract

The utility model discloses a transformer air duct and a transformer, and relates to the technical field of transformer air ducts, the transformer air duct comprises an air duct body, the air duct body is provided with an opening, the opening is provided with a baffle plate, the baffle plate blocks the opening, and the baffle plate is connected with the air duct body through a connecting structure; the connecting structure comprises a base rod, a spring and a convex part, the spring sleeves one end of the base rod and is fixedly connected with the base rod, the convex part is arranged at the other end of the base rod, a first through hole is formed in the position, corresponding to the connecting structure, of the air duct body, and a second through hole is formed in the position, corresponding to the connecting structure, of the baffle; the shape and the size of the first through hole and the second through hole are both matched with the shape and the size of the end, provided with the protruding portion, of the connecting structure, the connecting structure is used for fixing the baffle in the using process, and the problem that in the prior art, when a reinforcing plate is fixed through a binding belt, inconvenience is caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer air ducts, in particular to a transformer air duct and a transformer. Background Art

[0002] Referring to the Chinese utility model patent with authorization announcement number CN213519486U, a wind tube structure of an impregnated phase-shifting transformer is disclosed, including a wind tube, on which at least one through slot is provided, a patch plate is installed outside the through slot, and circular holes corresponding to the positions of the rectangular holes are provided on both sides of the top and bottom of the patch plate, and the circular hole is connected to the rectangular hole by a cable tie.

[0003] The duct structure of the impregnated phase-shifting transformer has a through slot on the duct, and the patch plate is installed in conjunction with the through slot by means of a cable tie, which simplifies the operation process, reduces the use of materials, can meet the special lead requirements of customers, improves the appearance of the duct, and effectively reduces the loss of air volume. However, it still has some disadvantages. For example, when the cable tie is used to fix the patch plate on the duct, a cable tie needs to pass through two circular holes, and one end of the cable tie first passes through one of the circular holes and extends into the interior of the duct, and the end also passes through the other circular hole and extends to the outer end of the duct. Since the duct blocks the line of sight, the staff can only rely on feeling to insert the end of the cable tie that has penetrated into the interior of the duct into the other circular hole, and it is not possible to fix the patch plate more conveniently. Utility Model Content

[0004] The main purpose of the utility model is to provide a transformer air duct, aiming to solve the problem that when installing the existing air duct, the staff can only insert one end of the cable tie into the other round hole by feeling because the air duct blocks the line of sight, and the patch plate cannot be fixed conveniently.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A transformer wind tube comprises a wind tube body, wherein the wind tube body is provided with an opening, a baffle is provided at the opening, the baffle blocks the opening, and the baffle is connected to the wind tube body through a connecting structure;

[0007] The connecting structure includes a base rod, a spring and a convex portion, the spring is sleeved on one end of the base rod and fixedly connected to the base rod, the other end of the base rod is provided with the convex portion, the air duct body is provided with a first through hole corresponding to the connecting structure, and the baffle is provided with a second through hole corresponding to the connecting structure, the shapes and sizes of the first through hole and the second through hole are matched with the end of the connecting structure provided with the convex portion, the end of the connecting structure provided with the convex portion passes through the second through hole and the first through hole in sequence, the convex portion extends into the interior of the air duct body, and after the convex portion rotates in the air duct body with the axis of the base rod as the rotation center, the convex portion abuts against the inner wall of the air duct body to fix the baffle at the opening.

[0008] Optionally, a groove is provided on the air duct body, the groove is located outside the opening, and the baffle is located in the groove.

[0009] Optionally, a rubber pad is arranged in the groove, and the rubber pad is used to fill the gap between the air cylinder body and the baffle.

[0010] Optionally, a molding is provided at the edge of the baffle, and the molding is provided on the end face of the baffle opposite to the wind tube body. The molding corresponds to a third through hole opened at the connecting structure, and the connecting structure passes through the third through hole. The shape and size of the third through hole match the end of the connecting structure where the protrusion is provided.

[0011] Optionally, the first through hole includes a central portion and a recessed portion, the recessed portion is connected to the central portion, a longitudinal section of the central portion is the same as a longitudinal section of the base rod, and a longitudinal section of the recessed portion is the same as a longitudinal section of the convex portion.

[0012] Optionally, a stop sleeve is further provided inside the air duct body, the central axis of the stop sleeve coincides with the central axis of the first through hole, and the stop sleeve is provided with a through groove corresponding to the recess.

[0013] Optionally, a slot is provided on the stop sleeve, and the protrusion is clamped in the slot.

[0014] Optionally, the connection structure further includes a gasket, the gasket is fixedly connected to the spring, the base rod passes through the gasket, and the gasket is in contact with the pressure strip.

[0015] Optionally, the connection structure further comprises a hand-held portion, the hand-held portion is fixedly arranged at an end of the base rod away from the convex portion, and the spring is in contact with the hand-held portion.

[0016] The utility model also provides a transformer, comprising the transformer air duct.

[0017] In practical applications, the transformer wind tube of the present application can be used in combination with the transformer in the prior art. Specifically, the technical solution of the utility model is provided with a connection structure. When in use, the baffle is installed at the opening, the second through hole is aligned with the first through hole, and one end provided with the convex portion is passed through the first through hole and the second through hole and extended into the interior of the wind tube. At this time, the spring is compressed, and the connection structure is rotated so that the convex portion in the connection structure is misaligned with the first through hole and the second through hole, so that the baffle can be fixed. When disassembling, the connection structure is rotated. When the convex portion in the connection knot is aligned with the first through hole and the second through hole, since the spring is in a compressed state, the connection structure automatically pops out under the influence of the spring elastic force. When fixing the baffle, it is not necessary to do it by feeling, and the fixing is more convenient. The existence of the pressure strip, when in use, the spring provides pressure, and the pressure is transmitted to the pressure strip, and then transmitted to the baffle through the pressure strip, so that the place where the connection structure is not provided also has pressure, and the baffle can be pressed to make it fit with the wind tube body, which solves the problem in the prior art that when the patch plate is fixed with a cable tie, the staff can only insert the cable tie into the round hole by feeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the transformer wind tube and the transformer after assembly in one embodiment of the utility model;

[0019] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0021] Figure 4 for Figure 3 The enlarged schematic diagram of the center C;

[0022] Figure 5 This is a structural schematic diagram of a connection structure in an embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the air duct body in one embodiment of the utility model;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of point D in the middle;

[0025] Figure 8 This is a schematic diagram of the external structure of the air duct body in one embodiment of the utility model;

[0026] Fig. 9 for Figure 8 Enlarged schematic diagram of point E in the middle.

[0027] Description of Figure Numbers:

[0028] 1. Hair duct body; 101. Opening; 102. First through hole; 1021. Center; 1022. Concave; 103. Groove; 2. Baffle; 201. Second through hole; 3. Pressure strip; 301. Third through hole; 4. Connecting structure; 401. Base rod; 402. Spring; 403. Protrusion; 404. Gasket; 405. Hand-held part; 5. Rubber pad; 6. Stop sleeve; 601. Through slot; 602. Card slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The utility model embodiment provides a transformer air duct.

[0034] See also Figure 1-Figure 9 The transformer wind tube provided by the embodiment of the utility model comprises a wind tube body 1, an opening 101 is formed on the wind tube body 1, a baffle 2 is arranged at the opening 101, the baffle 2 blocks the opening 101, and the baffle 2 is connected to the wind tube body 1 through a connecting structure 4; the connecting structure 4 comprises a base rod 401, a spring 402 and a convex portion 403, the spring 402 is sleeved on one end of the base rod 401 and fixedly connected to the base rod 401, the other end of the base rod 401 is provided with a convex portion 403, and the wind tube body 1 is provided with a first through hole 102 corresponding to the connecting structure 4, A second through hole 201 is opened in the baffle plate 2 corresponding to the connection structure 4, and the shapes and sizes of the first through hole 102 and the second through hole 201 are matched with one end of the connection structure 4 provided with a protrusion 403. The end of the connection structure 4 provided with the protrusion 403 passes through the second through hole 201 and the first through hole 102 in sequence, and the protrusion 403 extends into the interior of the wind cylinder body 1. After the protrusion 403 rotates in the wind cylinder body 1 with the axis of the base rod 401 as the rotation center, the protrusion 403 abuts against the inner wall of the wind cylinder body 1, fixing the baffle plate 2 at the opening 101.

[0035] The technical solution of the utility model is to set a connecting structure 4. When in use, the baffle 2 is installed at the opening 101, so that the second through hole 201 is aligned with the first through hole 102, and the end provided with the protrusion 403 passes through the second through hole 201 and the first through hole 102 and extends into the interior of the wind tube body 1. At this time, the spring 402 is compressed, and the connecting structure 4 is rotated to make the protrusion 403 in the connecting structure 4 misaligned with the first through hole 102 and the second through hole 201, so that the baffle 2 can be fixed. During the disassembly process, the connecting structure 4 is rotated, and the protrusion 403 in the connecting structure 4 is aligned with the second through hole 201 and the first through hole 102. Since the spring 402 is in a compressed state, the connecting structure 4 automatically pops out of the second through hole 201 and the first through hole 102 under the influence of the elastic force of the spring 402. When fixing the baffle 2, it is not necessary to rely on feeling, and the fixing is more convenient. In addition, a wiring port can be opened on the baffle 2. When wiring, the cable passes through the wiring port to carry out wiring.

[0036] See also Figure 1 Furthermore, in one embodiment of the utility model, the connecting structure 4 is located on the left and right sides of the baffle 2. Since the upper and lower sides are relatively short in length, the connecting structure 4 may not be provided. If the upper and lower sides are relatively long in length, the connecting structure 4 may be provided on the upper and lower sides of the baffle 2. The specific requirements may be adjusted according to actual use.

[0037] See also Figure 3 and Figure 4In one embodiment of the utility model, a groove 103 is provided on the air duct body 1 , the groove 103 is located outside the opening 101 , and the baffle 2 is located inside the groove 103 .

[0038] The embodiment of the utility model is provided with a groove 103 . When in use, the baffle 2 is placed in the groove 103 , which facilitates the staff to align the second through hole 201 with the first through hole 102 .

[0039] See also Figure 4 In one embodiment of the utility model, a rubber pad 5 is arranged in the groove 103 , and the rubber pad 5 is used to fill the gap between the air duct body 1 and the baffle 2 .

[0040] After the baffle plate 2 is fixed on the wind cylinder body 1, the spring 402 is in a compressed state and can provide pressure to the baffle plate 2 to make it close to the wind cylinder body 1. Due to the influence of the spring 402, the rubber pad 5 is deformed to fill the gap between the baffle plate 2 and the wind cylinder body 1 to improve the sealing between the baffle plate 2 and the wind cylinder body 1.

[0041] See also Figure 1 and Figure 4 In one embodiment of the utility model, a pressure strip 3 is provided at the edge of the baffle 2, and the pressure strip 3 is provided on the end surface of the baffle 2 opposite to the wind tube body 1. A third through hole 301 is opened in the pressure strip 3 corresponding to the connecting structure 4. The connecting structure 4 passes through the third through hole 301, the second through hole 201 and the first through hole 102 in sequence. The shape and size of the third through hole 301 match the end of the connecting structure 4 provided with a protrusion 403.

[0042] The embodiment of the utility model is provided with two pressure strips 3, and the two pressure strips 3 are located on the long sides of the baffle 2. The pressure strips 3 extend from the lower end of the baffle 2 to the upper end of the baffle 2. When in use, the spring 402 in the connecting structure 4 provides pressure, and the pressure is transmitted to the pressure strips 3, and then transmitted to the baffle 2 through the pressure strips 3, so that it is pressed tightly at the opening 101, so that the place where the connecting structure 4 is not provided also has pressure to press the baffle 2 to make it fit with the wind tube body 1.

[0043] See also Fig. 9 In one embodiment of the utility model, the first through hole 102 includes a central portion 1021 and a recessed portion 1022, the recessed portion 1022 is connected to the central portion 1021, the longitudinal section of the central portion 1021 is the same as the longitudinal section of the base rod 401, and the longitudinal section of the recessed portion 1022 is the same as the longitudinal section of the convex portion 403.

[0044] In the embodiment of the utility model, the baffle 2 can be fixed by passing one end provided with the protrusion 403 through the second through hole 201 and the first through hole 102, and the protrusion 403 passes through the recess 1022 and extends into the interior of the wind tube body 1, and rotating the connecting structure 4 so that the protrusion 403 and the recess 1022 are misaligned. When disassembling, the connecting structure 4 is rotated, and when the protrusion 403 is aligned with the recess 1022, the connecting structure 4 automatically pops out under the influence of the elastic force of the spring 402.

[0045] See also Fig. 9 Furthermore, in one embodiment of the utility model, the first through hole 102 is arranged along the height direction of the wind cylinder body 1, and is located on the left and right sides of the opening 101. Therefore, the second through hole 201 is also arranged along the height direction of the baffle 2, corresponding to the first through hole 102, and the third through hole 301 is arranged along the height direction of the pressure strip 3, corresponding to the first through hole 102.

[0046] See also Figure 7 In one embodiment of the utility model, a stop sleeve 6 is further provided inside the wind tube body 1 , the central axis of the stop sleeve 6 coincides with the central axis of the first through hole 102 , and a through groove 601 is formed in the stop sleeve 6 corresponding to the recess 1022 .

[0047] The embodiment of the utility model is provided with a stop sleeve 6, and a through groove 601 is provided on the stop sleeve 6. The existence of the stop sleeve 6 can increase the distance between the protrusion 403 and the spring 402, that is, the spring 402 is further compressed, and the elastic force generated by the spring 402 is greater. In this way, the baffle 2 and the wind tube body 1 will fit better.

[0048] See also Figure 7 In one embodiment of the utility model, a slot 602 is formed on the stop sleeve 6 , and the protrusion 403 is stuck in the slot 602 .

[0049] The embodiment of the utility model provides a slot 602 on the stop sleeve 6. When the protrusion 403 extends into the interior of the wind tube body 1, the protrusion 403 continues to move forward. When the protrusion 403 is completely moved to the end of the stop sleeve 6 facing away from the wind tube body 1, the connecting structure 4 is rotated to dislocate the protrusion 403 from the through slot 601. The protrusion 403 is stuck in the end of the stop sleeve 6. The connecting structure 4 is continued to rotate. When the protrusion 403 coincides with the slot 602, under the influence of the spring 402, the protrusion 403 is stuck in the slot 601. 2, at this time, the connecting structure 4 cannot rotate, so as to prevent the connecting structure 4 from rotating and then falling off due to misoperation or transformer vibration. When disassembling, the base rod 401 is pressed in the direction of the wind tube body 1 to move the protrusion 403 out of the slot 602, and then the base rod 401 is rotated. When the protrusion 403 overlaps with the through slot 601, under the influence of the elastic force of the spring 402, the protrusion 403 automatically pops out through the through slot 601 in the direction away from the wind tube body 1, and the connecting structure 4 can be removed.

[0050] See also Figure 5 In one embodiment of the utility model, the connection structure 4 further includes a gasket 404 , the gasket 404 is fixedly connected to the spring 402 , the base rod 401 passes through the gasket 404 , and the gasket 404 contacts the pressure strip 3 .

[0051] The embodiment of the utility model is provided with a gasket 404. The existence of the gasket 404 makes the baffle 2 bear force more evenly. An anti-slip protrusion can be provided on the gasket 404. In this way, the rotation of the connection structure 4 caused by misoperation or transformer vibration can be reduced.

[0052] See also Figure 5 In one embodiment of the utility model, the connection structure 4 further includes a hand-held portion 405 , which is fixedly disposed at one end of the base rod 401 away from the protrusion 403 , and the spring 402 is in contact with the hand-held portion 405 .

[0053] When the utility model is implemented and used, the connecting structure 4 can be rotated by pinching the hand-held part 405 or extended toward the inside of the hair dryer body 1. Anti-skid patterns can be provided on the hand-held part 405 to prevent slipping during use.

[0054] See also Figure 1 The utility model also provides a transformer, including a transformer body, and a transformer wind duct is arranged on the outside of the transformer body. The specific structure of the transformer wind duct refers to the above embodiment. Since the transformer adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0055] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transformer wind duct, characterized in that: It comprises a wind tube body, the wind tube body is provided with an opening, a baffle is arranged at the opening, the baffle blocks the opening, and the baffle is connected to the wind tube body through a connecting structure; The connecting structure includes a base rod, a spring and a convex portion, the spring is sleeved on one end of the base rod and fixedly connected to the base rod, the other end of the base rod is provided with the convex portion, the air duct body is provided with a first through hole corresponding to the connecting structure, the baffle is provided with a second through hole corresponding to the connecting structure, the shapes and sizes of the first through hole and the second through hole are matched with the end of the connecting structure provided with the convex portion, the end of the connecting structure provided with the convex portion passes through the second through hole and the first through hole, the convex portion extends into the interior of the air duct body, and after the convex portion rotates in the air duct body with the axis of the base rod as the rotation center, the convex portion abuts against the inner wall of the air duct body to fix the baffle at the opening.

2. The transformer wind tube according to claim 1, characterized in that: The air duct body is provided with a groove, the groove is located outside the opening, and the baffle is located in the groove.

3. The transformer wind tube according to claim 2, characterized in that: A rubber pad is arranged in the groove, and the rubber pad is used to fill the gap between the air duct body and the baffle.

4. The transformer wind tube according to claim 1, characterized in that: A pressure strip is arranged at the edge of the baffle, and the pressure strip is arranged on the end face of the baffle opposite to the wind tube body. The pressure strip is provided with a third through hole corresponding to the connecting structure, and the connecting structure passes through the third through hole. The shape and size of the third through hole match the end of the connecting structure where the protrusion is arranged.

5. The transformer wind tube according to claim 1, characterized in that: The first through hole includes a central portion and a concave portion, the concave portion is connected to the central portion, the longitudinal section of the central portion is the same as the longitudinal section of the base rod, and the longitudinal section of the concave portion is the same as the longitudinal section of the convex portion.

6. The transformer wind tube according to claim 5, characterized in that: A stop sleeve is further provided inside the air duct body, the central axis of the stop sleeve coincides with the central axis of the first through hole, and a through groove is formed in the stop sleeve corresponding to the recess.

7. The transformer wind tube according to claim 6, characterized in that: The stop sleeve is provided with a slot, and the convex portion is clamped in the slot.

8. The transformer wind tube according to claim 4, characterized in that: The connection structure further comprises a gasket, which is fixedly connected to the spring, through which the base rod passes, and which contacts the pressure strip.

9. The transformer wind tube according to claim 1, characterized in that: The connection structure further comprises a hand-held portion, which is fixedly arranged at one end of the base rod away from the convex portion, and the spring is in contact with the hand-held portion.

10. A transformer, characterized in that: It comprises a transformer wind tube as described in any one of claims 1 to 9.

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