A test fixture for a low-power pulse transformer

By designing gear meshing and motor drive for a low-power pulse transformer test fixture, the problem of easily folded or damaged connecting wires was solved, enabling the storage of connecting wires and the cleaning of ventilation slots, thereby improving measurement efficiency and the stability and lifespan of the equipment.

CN224436370UActive Publication Date: 2026-06-30HEFEI LEIKE ELECTRONIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI LEIKE ELECTRONIC TECH CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-30

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Abstract

This utility model belongs to the field of electronic engineering measurement technology, specifically a test fixture for a small-power pulse transformer, including a transformer body; a connecting disc rotatably connected to the bottom inner side of the transformer body; a first gear rotatably connected to the top inner side of the transformer body; and a transmission gear ring rotatably connected to the top inner side of the transformer body; the transmission gear ring meshes with the first gear; and multiple sets of fan blades are arranged inside the transmission gear ring; during operation, the first gear is activated, causing it to rotate in the opposite direction. The first gear can interact with the elastic connecting plate through its teeth, thereby driving the connecting disc to rotate. The connecting disc can then be wound up with the fixture connecting wire fixed on its surface, thus reducing the risk of the existing fixture connecting wire being exposed to the outside for extended periods, leading to folding or damage. The overall device improves the working life of the fixture connecting wire and enhances the overall measurement efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of electronic engineering measurement technology, specifically a test fixture for a small power pulse transformer. Background Technology

[0002] The test fixture for low-power pulse transformers is a device used to connect the equipment to be tested to the pulse transformer. Depending on the specifications of the pulse transformer used for the equipment to be measured, the safety of the operator can be improved.

[0003] In current technology, the test fixture for small power pulse transformers often consists of the transformer body, the measuring fixture, and the connecting wire. After the measuring fixture is connected to the device to be measured, the transformer panel can be operated to perform the measurement work through the connecting wire.

[0004] Existing test fixtures for low-power pulse transformers suffer from problems during operation. The connecting cables are often too long, leading to folding or damage over extended use, ultimately affecting overall measurement efficiency. Therefore, this paper proposes a new test fixture for low-power pulse transformers to address these issues. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a test fixture for a small power pulse transformer.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A test fixture for a small-power pulse transformer, comprising a transformer body; a connecting disc rotatably connected to the bottom inner side of the transformer body; a first gear rotatably connected to the top inner side of the transformer body; a transmission gear ring rotatably connected to the top inner side of the transformer body; the transmission gear ring meshes with the first gear; multiple sets of fan blades are arranged inside the transmission gear ring; a fixing sleeve is fixedly connected to the top of the transformer body; the fixing sleeve is sleeved on the top of the transmission gear ring; both sides of the fixing sleeve... The transformer body is equipped with a ventilation duct; multiple ventilation slots are formed at the bottom of the ventilation duct; an output motor is fixedly connected to the top inner side of the transformer body; a second gear is rotatably connected to one end of the output motor near the transmission gear ring; the second gear meshes with the transmission gear ring; a pair of clamp connecting lines are fixedly connected to the outer wall of the connecting disc; one end of the clamp connecting line is located on the outer side of the transformer body; multiple sets of teeth are rotatably connected to the top of the connecting disc; the teeth mesh with the inner wall of the first gear; an elastic connecting plate is fixedly connected to the side wall of the teeth; the elastic connecting plate is connected to the side wall of the connecting disc.

[0007] Preferably, a fixing plate is fixedly connected to both sides of the fixing sleeve column; a threaded rod is rotatably connected to the top end of the ventilation pipe away from the fixing sleeve column; the threaded rod is located inside the fixing plate and is threaded; an operating rod is fixedly connected to one end of a pair of threaded rods close to each other; a cleaning ring is fixedly connected to the bottom of the fixing plate; the cleaning ring is sleeved on the outside of the ventilation pipe.

[0008] Preferably, a drive column is rotatably connected to the top of the transformer body; a cleaning belt is rotatably connected to the top of the transformer body; the inner wall and outer wall of the cleaning belt are in contact with each other; a transmission belt is rotatably connected to the outer wall of the cleaning belt; a fixed side plate is provided on the top of the transformer body; the outer wall of the fixed side plate is in contact with the inner wall of the transmission belt; connecting rings are fixed to both sides of the operating rod; the outer wall of the connecting ring is in contact with the inner wall of the transmission belt.

[0009] Preferably, an extension plate is fixedly connected to the top of the transformer body at the end away from the cleaning belt; a sliding groove is opened on the top of the extension plate; multiple sets of spring columns are fixedly connected to the bottom of the inner side of the sliding groove; a cleaning scraper is slidably connected to the inner side of the sliding groove; the bottom of the cleaning scraper is connected to the top of the spring column.

[0010] Preferably, a first magnetic plate is fixedly connected to the bottom of the cleaning scraper; a second magnetic plate is fixedly connected to the bottom of the chute; both the first magnetic plate and the second magnetic plate are disposed inside a pair of spring columns.

[0011] Preferably, a pair of sealing sleeves are fixedly connected to the side wall of the transformer body near the clamp connection line; the sealing sleeves are sleeved on the outside of the clamp connection line; and a sealing soft ring is fixedly connected to the inner side wall of the sealing sleeves.

[0012] Preferably, the top of the fixed sleeve column is provided with an expansion groove.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model provides a test fixture for a small power pulse transformer. When it is necessary to store the fixture connecting wire, the first gear is activated, causing it to rotate in the opposite direction. The first gear can cooperate with the elastic connecting plate through its teeth, thereby driving the connecting plate to rotate. The connecting plate can then wind up the fixture connecting wire fixed on the surface, thus reducing the occurrence of folding or damage caused by the existing fixture connecting wire being exposed to the outside for a long time. The overall device improves the working life of the fixture connecting wire and enhances the overall measurement efficiency.

[0015] 2. This utility model provides a test fixture for a small power pulse transformer. When it is necessary to clean impurities attached to the surface of the ventilation slot, the operating rod is rotated, which drives the threaded rod to rotate. The rotating threaded rod can activate the fixed plate and the cleaning ring to move outside the ventilation pipe. The cleaning ring can then clean the ventilation slot. The overall device improves the cleanliness of the ventilation slot and reduces the occurrence of impurities clogging the inside of the ventilation slot. The overall device also improves the stability of the ventilation slot during long-term operation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional view of the transformer body of this utility model;

[0018] Figure 2 This is a perspective view of the clamp connecting line in this utility model;

[0019] Figure 3 This is a perspective view of the cleaning belt in this utility model;

[0020] Figure 4 This is a perspective view of the fixed sleeve column in this utility model;

[0021] Figure 5 This is a perspective view of the extension plate in this utility model;

[0022] Figure 6 This is a three-dimensional view of the teeth in this utility model.

[0023] Legend:

[0024] 1. Transformer body; 11. Connecting plate; 12. First gear; 13. Transmission gear ring; 14. Fixed sleeve; 15. Ventilation pipe; 16. Ventilation slot; 17. Output motor; 18. Second gear; 19. Clamp connecting line; 110. Tooth; 111. Elastic connecting plate; 2. Fixed plate; 21. Threaded rod; 22. Operating lever; 23. Cleaning ring; 3. Drive rotating column; 31. Cleaning belt; 32. Transmission belt; 33. Fixed side plate; 34. Connecting ring; 4. Expansion plate; 41. Slide groove; 42. Spring column; 43. Cleaning scraper; 5. First magnetic plate; 51. Second magnetic plate; 6. Sealing sleeve; 61. Sealing soft ring; 7. Expansion slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-4 and Figure 6 This utility model provides a test fixture for a small power pulse transformer, including a transformer body 1; a connecting disk 11 is rotatably connected to the bottom inner side of the transformer body 1; a first gear 12 is rotatably connected to the top inner side of the transformer body 1; a transmission gear ring 13 is rotatably connected to the top inner side of the transformer body 1; the transmission gear ring 13 meshes with the first gear 12; multiple sets of fan blades are arranged inside the transmission gear ring 13; a fixing sleeve 14 is fixedly connected to the top of the transformer body 1; the fixing sleeve 14 is sleeved on the top of the transmission gear ring 13. Both sides of the fixed sleeve column 14 are connected to ventilation pipes 15; the bottom of the ventilation pipes 15 has multiple sets of ventilation slots 16; the top of the inner side of the transformer body 1 is fixedly connected to an output motor 17; the output motor 17 is rotatably connected to a second gear 18 near the transmission gear ring 13; the second gear 18 meshes with the transmission gear ring 13; a pair of clamp connecting lines 19 are fixedly connected to the outer wall of the connecting plate 11; the far end of the clamp connecting line 19 is located on the outside of the transformer body 1; the top of the connecting plate 11 is rotatably connected to multiple sets of teeth 110. The teeth 110 mesh with the inner wall of the first gear 12; an elastic connecting plate 111 is fixedly connected to the side wall of the teeth 110; the elastic connecting plate 111 is connected to the side wall of the connecting plate 11; during operation, the output motor 17 is started, and the output motor 17 can drive the transmission gear ring 13 to rotate through the second gear 18. The transmission gear ring 13 can discharge the hot gas inside the transformer body 1 to the outside through the fixed sleeve 14, ventilation pipe 15 and ventilation groove 16. At this time, the first gear 12 squeezes the teeth 110 into the inner groove of the connecting plate 11. Body 1 does not rotate; when it is necessary to store the clamp connecting line 19, the first gear 12 is activated, causing the first gear 12 to rotate in the opposite direction. The first gear 12 can cooperate with the elastic connecting plate 111 through the teeth 110, thereby driving the connecting plate 11 to rotate. The connecting plate 11 can be fixed on the surface of the clamp connecting line 19 for winding, thereby reducing the existing clamp connecting line 19 being exposed to the outside for a long time, which may lead to folding or damage. The overall device improves the working life of the clamp connecting line 19 and improves the overall measurement efficiency.

[0028] Furthermore, such as Figure 3 As shown, fixing plates 2 are fixedly connected to both sides of the fixed sleeve column 14; a threaded rod 21 is rotatably connected to the top end of the ventilation pipe 15 away from the fixed sleeve column 14; the threaded rod 21 is located inside the fixing plate 2 and is threaded; an operating rod 22 is fixedly connected to one end of a pair of threaded rods 21 close to each other; a cleaning ring 23 is fixedly connected to the bottom of the fixing plate 2; the cleaning ring 23 is sleeved on the outside of the ventilation pipe 15; during operation, when it is necessary to clean the impurities attached to the surface of the ventilation slot 16, by rotating the operating rod 22, the operating rod 22 can drive the threaded rod 21 to rotate, and the rotating threaded rod 21 can start the fixing plate 2 and the cleaning ring 23 to move outside the ventilation pipe 15, so that the cleaning ring 23 can clean the ventilation slot 16. The overall device improves the cleanliness of the ventilation slot 16 and reduces the occurrence of impurities clogging the inside of the ventilation slot 16; the overall device improves the stability of the ventilation slot 16 during long-term operation.

[0029] Furthermore, such as Figure 1 and Figure 4 As shown, a drive column 3 is rotatably connected to the top of the transformer body 1; a cleaning belt 31 is rotatably connected to the top of the transformer body 1; the inner wall and outer wall of the cleaning belt 31 are in contact with each other; a transmission belt 32 is rotatably connected to the outer wall of the cleaning belt 31; a fixed side plate 33 is provided on the top of the transformer body 1; the outer wall of the fixed side plate 33 is in contact with the inner wall of the transmission belt 32; connecting rings 34 are fixed to both sides of the operating rod 22; the outer wall of the connecting ring 34 is in contact with the inner wall of the transmission belt 32; during operation, by rotating the operating rod 22, the operating rod 22 can drive the cleaning belt 31 to rotate through the transmission belt 32. The rotating cleaning belt 31 can drive the drive column 3 to move outward of the transformer body 1, and during the movement of the cleaning belt 31, the impurities accumulated on the top of the cleaning belt 31 can be discharged to the outside. The overall device improves the cleanliness of the top of the transformer body 1 and reduces the accumulation of impurities at the bottom of the ventilation slot 16.

[0030] Furthermore, such as Figure 5 An extension plate 4 is fixedly connected to the top of the transformer body 1 at the end away from the cleaning belt 31; a sliding groove 41 is opened on the top of the extension plate 4; multiple sets of spring columns 42 are fixedly connected to the bottom of the inner side of the sliding groove 41; a cleaning scraper 43 is slidably connected to the inner side of the sliding groove 41; the bottom of the cleaning scraper 43 is connected to the top of the spring column 42; during operation, the multiple sets of spring columns 42 push the cleaning scraper 43 to move inside the sliding groove 41, so that the cleaning scraper 43 is in contact with the outer wall of the cleaning belt 31. During the rotation of the cleaning belt 31, the cleaning scraper 43 can clean the impurities attached to the surface of the cleaning belt 31; the overall device improves the cleanliness of the surface of the cleaning belt 31.

[0031] Furthermore, such as Figure 5As shown, a first magnetic plate 5 is fixedly connected to the bottom of the cleaning scraper 43; a second magnetic plate 51 is fixedly connected to the bottom of the slide 41; both the first magnetic plate 5 and the second magnetic plate 51 are disposed inside a pair of spring columns 42; during operation, the first magnetic plate 5 and the second magnetic plate 51 repel each other due to magnetic force, thereby making the top of the cleaning scraper 43 fit more closely to the surface of the cleaning belt 31, and the overall device improves the cleanliness of the cleaning scraper 43 on the surface of the cleaning belt 31.

[0032] Furthermore, such as Figure 3 As shown, a pair of sealing sleeves 6 are fixedly connected to the side wall of the transformer body 1 near the clamp connection line 19; the sealing sleeves 6 are sleeved on the outside of the clamp connection line 19; a sealing soft ring 61 is fixedly connected to the inner side wall of the sealing sleeves 6; during operation, the sealing sleeves 6 and the sealing soft ring 61 cooperate with each other to seal the connection between the clamp connection line 19 and the transformer body 1, thereby reducing the occurrence of external impurities directly entering the interior of the transformer body 1 through the connection between the clamp connection line 19 and the transformer body 1; the overall device improves the cleanliness of the interior of the transformer body 1.

[0033] Furthermore, such as Figure 3 As shown, the top of the fixed sleeve 14 is provided with an expansion groove 7; during operation, the expansion groove 7 can assist the operator in rotating the operating lever 22, reducing the probability of friction between the operator's hand and the top of the fixed sleeve 14; the overall device improves the ease of rotating the operating lever 22.

[0034] Working principle: During operation, the output motor 17 is started, which drives the transmission gear ring 13 to rotate via the second gear 18. The transmission gear ring 13, through the fixed sleeve 14, ventilation pipe 15, and ventilation slot 16, discharges the hot gas inside the transformer body 1 to the outside. At this time, the first gear 12 presses the teeth 110 against the inner groove of the connecting plate 11, and the transformer body 1 does not rotate. When it is necessary to retract the clamp connecting line 19, the first gear 12 is started, causing the first gear 12 to rotate in the opposite direction. The first gear 12, through the teeth 110, interacts with the elastic connecting plate 111, thereby driving the connecting plate 11 to rotate. The connecting plate 11 can then rewind the clamp connecting line 19 fixed on its surface, thus reducing the cost of existing clamp connections. The wiring 19 is exposed to the outside for a long time, which may lead to folding or damage. The overall device improves the service life of the clamp connection wire 19 and the overall measurement efficiency. During operation, when it is necessary to clean the impurities attached to the surface of the ventilation slot 16, the operating lever 22 is rotated, which drives the threaded rod 21 to rotate. The rotating threaded rod 21 can activate the fixing plate 2 and the cleaning ring 23 to move outside the ventilation pipe 15, and the cleaning ring 23 can clean the ventilation slot 16. The overall device improves the cleanliness of the ventilation slot 16 and reduces the occurrence of impurities clogging the inside of the ventilation slot 16. The overall device improves the stability of the ventilation slot 16 during long-term operation. During operation, the operating lever 22 is rotated, which drives the threaded rod 21 to rotate. 2. The cleaning belt 31 can be driven to rotate by the transmission belt 32. The rotating cleaning belt 31 can drive the drive column 3 to move to the outside of the transformer body 1. During the movement of the cleaning belt 31, the impurities accumulated on the top of the cleaning belt 31 can be discharged to the outside. The overall device improves the cleanliness of the top of the transformer body 1 and reduces the accumulation of impurities at the bottom of the ventilation slot 16. During operation, multiple sets of spring columns 42 push the cleaning scraper 43 to move inside the slide 41, so that the cleaning scraper 43 and the outer wall of the cleaning belt 31 are in contact. During the rotation of the cleaning belt 31, the cleaning scraper 43 can clean the impurities attached to the surface of the cleaning belt 31. The overall device improves the cleanliness of the surface of the cleaning belt 31. During operation, the first magnetic plate 5 and the second The magnetic plates 51 repel each other due to magnetic force, which makes the top of the cleaning scraper 43 fit more closely to the surface of the cleaning belt 31, thus improving the cleanliness of the cleaning scraper 43 on the surface of the cleaning belt 31. During operation, the sealing sleeve 6 and the sealing soft ring 61 cooperate to seal the connection between the clamp connection line 19 and the transformer body 1, thereby reducing the possibility of external impurities directly entering the transformer body 1 through the connection between the clamp connection line 19 and the transformer body 1. The overall device improves the cleanliness of the inside of the transformer body 1. During operation, the expansion slot 7 can assist the operator in rotating the operating lever 22, reducing the probability of the operator's hand rubbing against the top of the fixed sleeve 14. The overall device improves the ease of rotating the operating lever 22.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A test fixture for a low-power pulse transformer, comprising a transformer body (1); characterized in that: A connecting disc (11) is rotatably connected to the bottom inner side of the transformer body (1); a first gear (12) is rotatably connected to the top inner side of the transformer body (1); a transmission gear ring (13) is rotatably connected to the top inner side of the transformer body (1); the transmission gear ring (13) meshes with the first gear (12); multiple sets of fan blades are arranged inside the transmission gear ring (13); a fixed sleeve (14) is fixedly connected to the top of the transformer body (1); the fixed sleeve (14) is sleeved on the top of the transmission gear ring (13); ventilation pipes (15) are connected to both sides of the fixed sleeve (14); multiple sets of ventilation slots (16) are opened at the bottom of the ventilation pipes (15); the transformer body (1) An output motor (17) is fixedly connected to the top of the inner side; a second gear (18) is rotatably connected to one end of the output motor (17) near the transmission gear ring (13); the second gear (18) meshes with the transmission gear ring (13); a pair of clamp connecting lines (19) are fixedly connected to the outer wall of the connecting disk (11); one end of the clamp connecting line (19) is located on the outside of the transformer body (1); multiple sets of teeth (110) are rotatably connected to the top of the connecting disk (11); the teeth (110) mesh with the inner wall of the first gear (12); an elastic connecting plate (111) is fixedly connected to the side wall of the teeth (110); the elastic connecting plate (111) is connected to the side wall of the connecting disk (11).

2. The test fixture for a small-power pulse transformer as described in claim 1, characterized in that: The fixed sleeve (14) has fixed plates (2) fixedly connected to both sides of the fixed sleeve (14); the top of the ventilation pipe (15) is rotatably connected to a threaded rod (21) at the end away from the fixed sleeve (14); the threaded rod (21) is located inside the fixed plate (2) and is threaded; a pair of threaded rods (21) are fixedly connected to an operating rod (22) at one end close to each other; a cleaning ring (23) is fixedly connected to the bottom of the fixed plate (2); the cleaning ring (23) is sleeved on the outside of the ventilation pipe (15).

3. The test fixture for a small-power pulse transformer as described in claim 1, characterized in that: The transformer body (1) is rotatably connected to a drive column (3) at the top; the transformer body (1) is rotatably connected to a cleaning belt (31) at the top; the inner wall of the cleaning belt (31) and the outer wall of the cleaning belt (31) are in contact with each other; the outer wall of the cleaning belt (31) is rotatably connected to a transmission belt (32); the transformer body (1) is provided with a fixed side plate (33) at the top; the outer wall of the fixed side plate (33) and the inner wall of the transmission belt (32) are in contact with each other; the operating rod (22) has connecting rings (34) fixed to both sides; the outer wall of the connecting ring (34) and the inner wall of the transmission belt (32) are in contact with each other.

4. The test fixture for a small-power pulse transformer as described in claim 3, characterized in that: An extension plate (4) is fixedly connected to the top of the transformer body (1) away from the cleaning strip (31); a sliding groove (41) is opened on the top of the extension plate (4); multiple sets of spring columns (42) are fixedly connected to the bottom of the inner side of the sliding groove (41); a cleaning scraper (43) is slidably connected to the inner side of the sliding groove (41); the bottom of the cleaning scraper (43) is connected to the top of the spring column (42).

5. The test fixture for a small-power pulse transformer as described in claim 4, characterized in that: The bottom of the cleaning scraper (43) is fixedly connected to a first magnetic plate (5); the bottom of the chute (41) is fixedly connected to a second magnetic plate (51); the first magnetic plate (5) and the second magnetic plate (51) are both located inside a pair of spring columns (42).

6. The test fixture for a small-power pulse transformer as described in claim 1, characterized in that: A pair of sealing sleeves (6) are fixedly connected to the side wall of the transformer body (1) near the clamp connection line (19); the sealing sleeves (6) are sleeved on the outside of the clamp connection line (19); a sealing soft ring (61) is fixedly connected to the inner side wall of the sealing sleeves (6).

7. The test fixture for a small-power pulse transformer as described in claim 1, characterized in that: An expansion slot (7) is provided at the top of the fixed sleeve (14).