Positive temperature coefficient thermosensitive transformer

Abstract

The utility model discloses a positive temperature coefficient thermosensitive transformer relates to transformer technical field, including shell, radiating fin and gear, the inner side of shell is equipped with the transformer body, and the inner wall of transformer body is equipped with thermistor, the outer wall of transformer body both sides is uniformly equipped with radiating fin, the gear is equipped with the gear. An access cover is installed on the upper portion of the shell, a sealing ring is installed on the inner wall of the lower portion of the access cover, clamping rods are connected to the two sides of the lower portion of the access cover, and clamping grooves matched with the clamping rods are formed in the inner wall of the shell. The double-shaft motor works to enable the second bevel gear to rotate, the second bevel gear is meshed with the first bevel gear to enable the threaded rods on the two sides to rotate at the same time, the threaded rods are matched with the movable sleeves in a threaded mode to enable the movable sleeves to drive the cleaning brushes to move up and down, dust of the cooling fins is removed through the cleaning brushes, and meanwhile static electricity is removed through the static electricity removing rods. The automatic cleaning function is achieved, and the problem that the dust cleaning function is not achieved is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a positive temperature coefficient thermistor transformer. Background Art

[0002] Transformers are widely used in power systems, industrial control, communications and other fields. They are indispensable equipment in modern society. Positive coefficient thermistors can be used for temperature monitoring and control of transformers to protect them. Transformers dissipate heat through the heat sink on the outer wall. After long-term use, the heat sink needs to be cleaned. Dust will affect the heat dissipation effect of the heat sink. Cleaning will cause internal static electricity, which will cause sparks and fires. Generally, staff conduct regular cleaning, which is a large workload, time-consuming and labor-intensive. In addition, it is inconvenient to perform internal maintenance on the transformer, and the maintenance structure is cumbersome, which is not convenient for maintenance work. In view of this, in-depth research was conducted on the above-mentioned problems, resulting in this case. Utility Model Content

[0003] The utility model aims to provide a positive temperature coefficient thermistor to solve the problem that the existing positive temperature coefficient thermistor mentioned in the background technology has no automatic cleaning function and is not easy to repair.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positive temperature coefficient thermistor transformer, comprising a shell, a heat sink and a gear, a transformer body is installed on the inner side of the shell, and a thermistor is installed on the inner wall of the transformer body, heat sinks are evenly installed on the outer walls of both sides of the transformer body, an inspection cover is installed on the top of the shell, and a sealing ring is installed on the inner wall below the inspection cover, both sides below the inspection cover are connected with a clamping rod, and the inner wall of the shell is provided with a clamping groove matching the clamping rod.

[0005] Preferably, a gear is installed at the middle position of the inner wall of the inspection cover, and one end of the gear is connected to a crank handle, both ends of the gear are meshingly installed with racks, and one end of the rack is fixedly connected to the clamping rod.

[0006] Preferably, a groove is provided on the outer wall of one end of the inspection cover, and a return spring is installed on the inner wall of the groove, a pull plate is connected to one side of the return spring, and a lock rod is connected to one side of the pull plate, and a lock groove matching the lock rod is provided on the outer wall of the crank handle.

[0007] Preferably, the inner walls at both ends of the inspection cover are provided with limiting grooves, and the outer walls on both sides of the rack are movably connected to the limiting grooves through limiting wheels.

[0008] Preferably, threaded rods are installed on the inner walls of both sides of the shell, and movable sleeves are threadedly installed on the outer walls of the threaded rods, a cleaning brush is connected to one side of the movable sleeve, and a static electricity removal rod is installed on the inner wall of the cleaning brush.

[0009] Preferably, both inner walls of the shell are provided with slide grooves, and one outer wall of the movable sleeve is movably connected to the slide grooves via a slider.

[0010] Preferably, a dual-axis motor is installed on the inner wall below the shell, and second bevel teeth are connected to both sides of the dual-axis motor, and first bevel teeth are installed on the outer wall below the threaded rod, and a meshing transmission structure is formed between the first bevel teeth and the second bevel teeth.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a double-shaft motor, a threaded rod and a movable sleeve. The double-shaft motor is used to rotate the second bevel gear. The second bevel gear is meshed with the first bevel gear to rotate the threaded rods on both sides at the same time. The threaded rod is matched with the thread of the movable sleeve so that the movable sleeve drives the cleaning brush to move up and down. The cleaning brush is used to clean the heat sink. At the same time, the static electricity is removed by the static electricity removal rod to realize the automatic cleaning function, thereby solving the problem of not having a dust removal function.

[0013] The utility model provides a pulling plate, a crank handle and a gear, wherein the pulling plate is moved to one side to make the locking rod move away from the locking groove, and then the crank handle is rotated to rotate the gear, so that the gear and the rack are meshed, so that the racks at both ends move inward at the same time, and the rack drives the clamping rod to move to the side away from the clamping groove at the same time, so that the inspection cover is opened to inspect the transformer body, thereby solving the problem of inconvenient inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the housing of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view structure of the inspection cover of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the cleaning brush of the utility model;

[0017] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. first bevel gear; 2. movable sleeve; 3. threaded rod; 4. housing; 5. slot; 6. inspection cover; 7. rack; 8. lever; 9. sealing ring; 10. transformer body; 11. heat sink; 12. thermistor; 13. second bevel gear; 14. dual-axis motor; 15. pull plate; 16. groove; 17. reset spring; 18. locking rod; 19. locking slot; 20. crank handle; 21. anti-static rod; 22. cleaning brush; 23. gear. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] Example 1: Please refer to Figure 1-Figure 4 A positive temperature coefficient thermistor transformer comprises a shell 4, a heat sink 11 and a gear 23. A transformer body 10 is installed on the inner side of the shell 4, and a thermistor 12 is installed on the inner wall of the transformer body 10. Heat sinks 11 are evenly installed on the outer walls of both sides of the transformer body 10. An inspection cover 6 is installed on the top of the shell 4, and a sealing ring 9 is installed on the inner wall below the inspection cover 6. Both sides below the inspection cover 6 are connected with a clamping rod 8, and the inner wall of the shell 4 is provided with a clamping groove 5 matched with the clamping rod 8;

[0021] A gear 23 is installed at the middle position of the inner wall of the inspection cover 6, and one end of the gear 23 is connected to the crank 20, and both ends of the gear 23 are meshed with racks 7, and one end of the rack 7 is fixedly connected to the clamping rod 8;

[0022] A groove 16 is provided on the outer wall of one end of the inspection cover 6, and a return spring 17 is installed on the inner wall of the groove 16. A pull plate 15 is connected to one side of the return spring 17, and a lock rod 18 is connected to one side of the pull plate 15. A lock groove 19 matching the lock rod 18 is provided on the outer wall of the crank handle 20.

[0023] The inner walls at both ends of the inspection cover 6 are provided with limiting grooves, and the outer walls on both sides of the rack 7 are movably connected to the limiting grooves through limiting wheels;

[0024] Specifically, Figure 1 , Figure 2 and Figure 4As shown, when this structure is used, the locking rod 18 is moved away from the locking groove 19 by moving the pull plate 15 to one side, and then the crank handle 20 is rotated to rotate the gear 23, and the gear 23 is engaged with the rack 7, so that the racks 7 at both ends move inward at the same time, so that the rack 7 drives the clamping rod 8 to move to the side away from the clamping groove 5 at the same time, so that it is convenient to open the inspection cover 6 to inspect the transformer body 10.

[0025] Embodiment 2: Threaded rods 3 are installed on the inner walls of both sides of the housing 4, and the outer walls of the threaded rods 3 are threadedly installed with movable sleeves 2, one side of the movable sleeves 2 is connected with a cleaning brush 22, and the inner walls of the cleaning brushes 22 are installed with static electricity removal rods 21;

[0026] The inner walls on both sides of the housing 4 are provided with slide grooves, and the outer wall on one side of the movable sleeve 2 is movably connected to the slide grooves through a slider;

[0027] A dual-axis motor 14 is installed on the inner wall below the housing 4, and second bevel teeth 13 are connected to both sides of the dual-axis motor 14. First bevel teeth 1 are installed on the outer wall below the threaded rod 3, and a meshing transmission structure is formed between the first bevel teeth 1 and the second bevel teeth 13.

[0028] Specifically, Figure 1 and Figure 3 As shown, when this structure is used, the second bevel gear 13 is rotated by the dual-axis motor 14, and the second bevel gear 13 is meshed with the first bevel gear 1, so that the threaded rods 3 on both sides are rotated at the same time, and the threaded rods 3 are threadedly matched with the movable sleeve 2, so that the movable sleeve 2 drives the cleaning brush 22 to move up and down, and the heat sink 11 is cleaned by the cleaning brush 22, and static electricity is removed by the static electricity removal rod 21, thereby realizing the automatic cleaning function.

[0029] Working principle: When using the device, firstly, the heat sink 11 is used to dissipate heat on the transformer body 10;

[0030] The first step to implement the innovation point:

[0031] The second bevel gear 13 is rotated by the operation of the dual-axis motor 14, and the second bevel gear 13 is meshed with the first bevel gear 1, so that the threaded rods 3 on both sides rotate at the same time, and the threaded rods 3 are threadedly matched with the movable sleeve 2, so that the movable sleeve 2 drives the cleaning brush 22 to move up and down, and the heat sink 11 is cleaned by the cleaning brush 22, and static electricity is removed by the static electricity removal rod 21 to ensure a good heat dissipation effect.

[0032] The second innovation point implementation steps:

[0033] Step 1: Move the pull plate 15 to one side to make the lock rod 18 away from the lock slot 19, then rotate the crank handle 20 to rotate the gear 23, and the gear 23 is meshed with the rack 7, so that the racks 7 at both ends move inward at the same time, so that the rack 7 drives the clamping rod 8 to move to the side away from the clamping slot 5 at the same time, and then the inspection cover 6 can be opened for inspection;

[0034] Step 2: By loosening the pull plate 15, the reset spring 17 is reset to make the locking rod 18 snap into the locking groove 19, thereby locking the position of the crank handle 20.

[0035] 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.

[0036] 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 positive temperature coefficient thermistor transformer, comprising a housing (4), a heat sink (11) and a gear (23), characterized in that: A transformer body (10) is installed on the inner side of the shell (4), and a thermistor (12) is installed on the inner wall of the transformer body (10). Heat sinks (11) are evenly installed on the outer walls of both sides of the transformer body (10). An inspection cover (6) is installed on the top of the shell (4), and a sealing ring (9) is installed on the inner wall below the inspection cover (6). Both sides below the inspection cover (6) are connected to clamping rods (8), and the inner wall of the shell (4) is provided with clamping grooves (5) that match the clamping rods (8).

2. The positive temperature coefficient thermistor according to claim 1, characterized in that: A gear (23) is installed at a middle position of the inner wall of the inspection cover (6), and one end of the gear (23) is connected to a crank handle (20). Racks (7) are meshedly installed at both ends of the gear (23), and one end of the rack (7) is fixedly connected to a clamping rod (8).

3. The positive temperature coefficient thermistor according to claim 2, characterized in that: A groove (16) is provided on the outer wall of one end of the inspection cover (6), and a return spring (17) is installed on the inner wall of the groove (16); a pull plate (15) is connected to one side of the return spring (17), and a lock rod (18) is connected to one side of the pull plate (15); and a lock groove (19) matching with the lock rod (18) is provided on the outer wall of the crank handle (20).

4. The positive temperature coefficient thermistor according to claim 2, characterized in that: The inner walls at both ends of the inspection cover (6) are provided with limiting grooves, and the outer walls on both sides of the rack (7) are movably connected to the limiting grooves via limiting wheels.

5. The positive temperature coefficient thermistor according to claim 1, characterized in that: Threaded rods (3) are installed on the inner walls of both sides of the housing (4), and movable sleeves (2) are threadedly installed on the outer walls of the threaded rods (3), a cleaning brush (22) is connected to one side of the movable sleeve (2), and a static electricity removal rod (21) is installed on the inner wall of the cleaning brush (22).

6. The positive temperature coefficient thermistor according to claim 5, characterized in that: Both inner walls of the outer shell (4) are provided with sliding grooves, and one outer wall of the movable sleeve (2) is movably connected to the sliding grooves via a sliding block.

7. The positive temperature coefficient thermistor according to claim 5, characterized in that: A dual-axis motor (14) is installed on the inner wall below the housing (4), and second bevel teeth (13) are connected to both sides of the dual-axis motor (14); first bevel teeth (1) are installed on the outer wall below the threaded rod (3), and a meshing transmission structure is formed between the first bevel teeth (1) and the second bevel teeth (13).

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