Small waterproof transformer with good sealing performance

Abstract

The utility model relates to the technical field of transformers, in particular to a small waterproof transformer with good sealing performance, which comprises a transformer bottom plate, a transformer outer protective aluminum shell, a transformer inner connecting element, an annular sealing ring I, an annular sealing ring II and an upper radiating fin, a sealing assembly used for positioning and sealing is arranged at the lower end of the transformer bottom plate, and a cooling assembly used for heat dissipation is arranged on the surface of the transformer outer protection aluminum shell. According to the sealing assembly, a double-sealing mode is adopted for sealing, the sealing ring is extruded in a clamping and extruding mode, it can be guaranteed that the sealing ring is evenly extruded, screws do not need to be installed at all positions, sealing performance is guaranteed, meanwhile, the trouble of installing the screws is omitted, follow-up maintenance and disassembly are also very convenient, and the sealing effect is good. The heat dissipation performance of the heat dissipation assembly is improved by increasing the heat dissipation area of the protective aluminum shell outside the transformer and increasing the heat dissipation speed of the cooling liquid, and compared with an existing waterproof transformer, the heat dissipation effect is better.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a small waterproof transformer with good sealing performance. Background Technology

[0002] A transformer is a device that changes AC voltage through the principle of electromagnetic induction. Its main components include a primary coil, a secondary coil, and an iron core. When using a toilet, the main function of the toilet transformer is to regulate voltage and current, ensuring that the electronic equipment inside the toilet operates under stable voltage and current.

[0003] The sealing components of existing small transformers for toilets are generally installed using screws. By installing screws at multiple points on the mounting plate, the sealing ring is compressed by the mounting plate to achieve a sealing effect. However, this method cannot ensure that the installation torque of each screw is the same, resulting in uneven compression of the sealing ring and the possible formation of gaps. Furthermore, screws with different installation torques are very easy to loosen during use. All of these factors may lead to poor sealing performance of the sealing ring.

[0004] To address the issue that existing toilet miniature transformers cannot ensure that the screws have the same installation torque, which may lead to gaps and poor sealing, a miniature waterproof transformer that is easy to install and remove and ensures that the sealing ring is subjected to uniform compression is designed to overcome this problem. Utility Model Content

[0005] To overcome the problem that the sealing assembly of existing small transformers for toilets cannot ensure that the installation torque of each screw is the same, which may cause gaps and result in poor sealing performance.

[0006] The technical solution of this utility model is as follows: a small waterproof transformer with good sealing performance, including a transformer base plate, an outer protective aluminum shell, and an inner connecting element. It also includes an annular sealing ring one, an annular sealing ring two, and an upper heat sink. The outer protective aluminum shell is fixedly connected to the upper end of the transformer base plate. The inner connecting element is provided inside the outer protective aluminum shell. The annular sealing ring one and the annular sealing ring two are provided inside the lower end of the transformer base plate. The upper heat sink is provided at the upper end of the outer protective aluminum shell. The sealing component for positioning and sealing is provided at the lower end of the transformer base plate. The cooling component for heat dissipation is provided on the surface of the outer protective aluminum shell.

[0007] Preferably, the sealing assembly includes an annular sealing ring, an annular groove at the lower end of the transformer base plate, the annular sealing ring being disposed within the annular groove, a bottom fixing plate at the lower end of the transformer base plate, holes on the surface of the bottom fixing plate, threaded holes within the annular groove, and the bottom fixing plate being fixedly installed at the lower end of the transformer base plate by screws. The bottom fixing plate is used to compress the annular sealing ring, and positioning holes are provided on the side of the bottom fixing plate for mounting the transformer base plate.

[0008] Preferably, the upper inner wall surface of the transformer base plate is provided with an annular groove II, and an annular sealing ring II is provided in the annular groove II. The lower end of the transformer base plate is provided with a lower pressure plate, and the side of the lower pressure plate is provided with a side groove. A spring is provided in the side groove, and a locking block is slidably connected in the side groove. One side of the locking block is an inclined surface. The spring in the side groove is used to push the locking block. The side of the transformer base plate is provided with an opening, and the locking block is adapted to the side opening of the transformer base plate. The lower pressure plate is used to compress the annular sealing ring II.

[0009] Preferably, the transformer base plate has a side shell at the side opening, a through hole on one side of the side shell, a rubber ring inside the through hole of the side shell, a push rod 1 slidably connected to the through hole of the side shell on both sides of the transformer base plate, and a push rod 2 slidably connected to the through hole of the side shell at both ends of the transformer base plate. The ends of push rod 1 and push rod 2 are provided with inclined surfaces that are adapted to the locking block.

[0010] Preferably, the cooling assembly includes an upper heat sink with a multi-layer structure. A heat-conducting plate is fixedly connected to one side of the upper heat sink, and the end of the heat-conducting plate passes through the outer protective aluminum shell of the transformer and contacts the heat-generating parts of the connecting components inside the transformer.

[0011] Preferably, the side surface of the transformer's outer protective aluminum shell is provided with a side cooling box, which is located on the outside of the heat-conducting fins and wraps the heat-conducting fins within it. The surface of the side cooling box is provided with side anti-slip texture.

[0012] Preferably, a ventilation duct is provided through the surface of the heat-conducting plate, with both ends of the ventilation duct passing through the side cooling box. The ventilation duct is used to cool the coolant in the side cooling box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The sealing components of this small waterproof transformer employ a double-seal method, using a snap-fit ​​compression mechanism to ensure uniform compression of the sealing ring. This eliminates the need for screws in various locations, ensuring a tight seal while avoiding the hassle of screw installation. Subsequent maintenance and disassembly are also extremely convenient. The heat dissipation components enhance heat dissipation performance by increasing the heat dissipation area of ​​the transformer's outer protective aluminum shell and improving the cooling speed of the coolant. Compared to existing waterproof transformers, the heat dissipation effect is better. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the small waterproof transformer with good sealing performance and the transformer base plate of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the small waterproof transformer with good sealing performance and the base fixing plate of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of a small, waterproof transformer with good sealing performance and an annular groove according to this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the small waterproof transformer with good sealing performance and the positioning hole of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the small waterproof transformer with good sealing performance and the side groove of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the small waterproof transformer with good sealing performance and the internal connecting elements of the transformer according to this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the small waterproof transformer with good sealing performance and the side cooling box of this utility model.

[0022] Figure 8 This utility model relates to a small, waterproof transformer with good sealing performance. Figure 7 A magnified structural diagram of point A;

[0023] Figure 9 This is a three-dimensional structural diagram of a small, waterproof transformer with good sealing performance and a push rod according to this utility model.

[0024] In the diagram: 1. Transformer base plate; 2. Transformer outer protective aluminum shell; 3. Bottom fixing plate; 4. Positioning hole; 5. Annular groove one; 6. Annular sealing ring one; 7. Lower pressure plate; 8. Side groove; 9. Clamping block; 10. Side shell; 11. Push rod one; 12. Push rod two; 13. Annular sealing ring two; 14. Annular groove two; 15. Transformer internal connecting element; 16. Upper heat sink; 17. Heat conducting plate; 18. Side cooling box; 19. Ventilation pipe; 20. Side anti-slip texture. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figure 1 - Figure 9This utility model provides an embodiment of a small waterproof transformer with good sealing performance, including a transformer base plate 1, an outer protective aluminum shell 2, and an inner connecting element 15. It also includes an annular sealing ring 6, an annular sealing ring 13, and an upper heat sink 16. The outer protective aluminum shell 2 is fixedly connected to the upper end of the transformer base plate 1. The inner connecting element 15 is located inside the outer protective aluminum shell 2. The lower end of the transformer base plate 1 contains the annular sealing ring 6 and the annular sealing ring 13. The upper end of the outer protective aluminum shell 2 has an upper heat sink 16. The lower end of the transformer base plate 1 has a sealing assembly for positioning and sealing. The surface of the outer protective aluminum shell 2 has a cooling assembly for heat dissipation. The sealing assembly of this small waterproof transformer uses a double sealing method with annular sealing ring 6 and annular sealing ring 13. The sealing rings are squeezed by a snap-fit ​​method, ensuring uniform compression and facilitating subsequent maintenance and disassembly. The heat dissipation assembly improves heat dissipation performance by increasing the heat dissipation area of ​​the outer protective aluminum shell 2 and increasing the heat dissipation speed of the coolant. Compared with existing waterproof transformers, it has a better heat dissipation effect.

[0027] Please see Figure 2 - Figure 6 In this embodiment, the sealing assembly includes an annular sealing ring 6. An annular groove 5 is provided at the lower end of the transformer base plate 1, and the annular sealing ring 6 is disposed within the annular groove 5. A bottom fixing plate 3 is provided at the lower end of the transformer base plate 1, with holes on its surface. A threaded hole is provided within the annular groove 5. The bottom fixing plate 3 is fixedly installed at the lower end of the transformer base plate 1 by screws. The bottom fixing plate 3 is used to compress the annular sealing ring 6. A positioning hole 4 is provided on the side of the bottom fixing plate 3 for mounting the transformer base plate 1. An annular groove 14 is provided on the upper inner wall surface of the transformer base plate 1, and an annular sealing ring 13 is disposed within the annular groove 14. A lower pressure plate 7 is provided at the lower end of the transformer base plate 1, and a side pressure plate 7 is provided on its side. The side groove 8 has a spring inside and a locking block 9 slidably connected inside. One side of the locking block 9 is a slope. The spring inside the side groove 8 is used to push the locking block 9. The side of the transformer base plate 1 has an opening. The locking block 9 is adapted to the side opening of the transformer base plate 1. The lower pressure plate 7 is used to compress the annular sealing ring 13. The side opening of the transformer base plate 1 has a side shell 10. One side of the side shell 10 has a through hole. A rubber ring is installed in the through hole of the side shell 10. Push rod 11 is slidably connected to the through holes of the side shell 10 on both sides of the transformer base plate 1. Push rod 22 is slidably connected to the through holes of the side shell 10 at both ends of the transformer base plate 1. The ends of push rod 11 and push rod 22 are both provided with slopes adapted to the locking block 9.

[0028] Please see Figure 7 and Figure 8In this embodiment, the cooling assembly includes an upper heat sink 16, which has a multi-layer structure. A heat-conducting plate 17 is fixedly connected to one side of the upper heat sink 16. The end of the heat-conducting plate 17 passes through the outer protective aluminum shell 2 of the transformer and contacts the heat-generating part of the connecting element 15 inside the transformer. A side cooling box 18 is provided on the side surface of the outer protective aluminum shell 2 of the transformer. The side cooling box 18 is located outside the heat-conducting plate 17 and wraps the heat-conducting plate 17 inside it. The surface of the side cooling box 18 is provided with side anti-slip texture 20. A ventilation pipe 19 is provided through the surface of the heat-conducting plate 17. Both ends of the ventilation pipe 19 pass through the side cooling box 18. The ventilation pipe 19 is used to cool the coolant in the side cooling box 18.

[0029] In use, the annular sealing ring 16 and the annular sealing ring 23 mainly serve a sealing function. The bottom fixing plate 3 is fixedly connected to the lower end of the transformer base plate 1 by screws. The bottom fixing plate 3 seals the lower end of the transformer base plate 1 by pressing the annular sealing ring 16 set in the annular groove 15 at the lower end of the transformer base plate 1. The lower pressure plate 7 achieves further sealing by pressing the annular sealing ring 23 set in the annular groove 24. The annular sealing ring 16 mainly seals the lower opening of the transformer base plate 1, and the annular sealing ring 23 mainly isolates the internal connecting element 15 of the transformer from contact with the outside world. Through these two seals, a waterproof effect is achieved.

[0030] The lower pressure plate 7 is installed in the transformer base plate 1 by compression. During installation, the lower pressure plate 7 needs to be pressed into the transformer base plate 1. The inclined surface of the sliding locking block 9 on the side of the lower pressure plate 7 is compressed back into the side groove 8 of the lower pressure plate 7 by the compression at the edge of the transformer base plate 1. Subsequently, under the push of the spring in the side groove 8, the locking block 9 engages with the surface opening of the transformer base plate 1, thus completing the installation of the lower pressure plate 7. Compared to using several screws for fixing, this installation method is not only convenient and quick, but also... The sealing ring 13 is compressed more evenly, resulting in better sealing. When disassembly is required for maintenance, first remove the bottom fixing plate 3. Then, use both hands to hold the push rod 11 on both sides of the transformer bottom plate 1 and the push rod 22 at both ends. Push rod 11 and push rod 22 push the locking block 9 back into the side groove 8 of the lower pressure plate 7, thus releasing the locking of the lower pressure plate 7. The lower pressure plate 7 can then be quickly removed. The rubber ring at the through hole of the side housing 10 is used to block the gap between the push rod 22, the push rod 11 and the through hole of the side housing 10.

[0031] During use, the heat generated by the internal connecting element 15 of the transformer is mainly dissipated through the outer protective aluminum shell 2 of the transformer. This heat dissipation method is existing technology. The upper end of the outer protective aluminum shell 2 of the transformer is provided with a multi-layer structured upper heat sink 16. The heat dissipation effect is enhanced by increasing the heat dissipation area of ​​the outer protective aluminum shell 2 of the transformer. The heat-conducting plate 17 is in contact with the heat-generating part of the internal connecting element 15 of the transformer. This can better transfer the heat inside the internal connecting element 15 of the transformer to the upper heat sink 16. The coolant in the side cooling box 18 is used to cool the heat-conducting plate 17, which further improves the heat dissipation effect. The ventilation pipe 19 runs through the side cooling box 18 and is in contact with the coolant in the side cooling box 18. When the air flows through the ventilation pipe 19, it can accelerate the discharge of heat from the coolant in the side cooling box 18, ensuring the heat dissipation effect of the coolant. The side anti-slip texture 20 on the side of the side cooling box 18 makes it easy to pick up the transformer and prevents the upper heat sink 16 and the heat-conducting plate 17 from cutting the palm.

[0032] Through the above steps, the sealing component of this small waterproof transformer adopts a double sealing method. The sealing ring is squeezed by a snap-fit ​​method, which can ensure that the sealing ring is squeezed evenly. There is no need to install screws in various places. While ensuring the sealing performance, it saves the trouble of installing screws. Subsequent maintenance and disassembly are also extremely convenient. The heat dissipation component improves the heat dissipation performance by increasing the heat dissipation area of ​​the outer protective aluminum shell 2 of the transformer and increasing the heat dissipation speed of the coolant. Compared with existing waterproof transformers, the heat dissipation effect is better.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A small waterproof transformer with good sealing, comprising a transformer bottom plate, a transformer outer protective aluminum shell and a transformer inner connecting element; characterized in that: Also include the annular sealing ring one, annular sealing ring two and the upper fin, the upper end of the transformer bottom plate is fixedly connected with the transformer outer protective aluminum shell, the transformer inner connecting element is arranged in the transformer outer protective aluminum shell, the lower end of the transformer bottom plate is provided with annular sealing ring one and annular sealing ring two, the upper end of the transformer outer protective aluminum shell is provided with the upper fin, the lower end of the transformer bottom plate is provided with the sealing assembly for positioning and sealing, the surface of the transformer outer protective aluminum shell is provided with the cooling assembly for heat dissipation.

2. The small-sized waterproof transformer with excellent sealing according to claim 1, characterized by: The sealing assembly includes an annular sealing ring one, the lower end of the transformer bottom plate is provided with an annular groove one, the annular sealing ring one is arranged in the annular groove one, the lower end of the transformer bottom plate is provided with a bottom fixed plate, the surface of the bottom fixed plate is provided with a hole, the annular groove one is provided with a threaded hole, the bottom fixed plate is fixedly installed at the lower end of the transformer bottom plate by screws, the bottom fixed plate is used for extruding the annular sealing ring one, the side surface of the bottom fixed plate is provided with a positioning hole, and the positioning hole is used for the installation of the transformer bottom plate.

3. The small-sized waterproof transformer with excellent sealing according to claim 2, characterized by: The inner wall surface of the upper end of the transformer bottom plate is provided with an annular groove two, the annular groove two is provided with an annular sealing ring two, the lower end of the transformer bottom plate is provided with a lower pressing plate, the side surface of the lower pressing plate is provided with a side groove, the side groove is provided with a spring, the side groove is slidably connected with a clamping block, one side of the clamping block is a slope, and the spring in the side groove is used to push the clamping block, the side surface of the transformer bottom plate is provided with an opening, the clamping block is matched with the side opening of the transformer bottom plate, and the lower pressing plate is used to extrude the annular sealing ring two.

4. The small-sized waterproof transformer with excellent sealing according to claim 3, characterized by: The side surface of the transformer bottom plate is provided with a side shell, one side of the side shell is provided with a through hole, the through hole of the side shell is provided with a rubber ring, the side shell through holes on both sides of the transformer bottom plate are slidably connected with a push rod one, the side shell through holes on both ends of the transformer bottom plate are slidably connected with a push rod two, and the end portions of the push rod one and the push rod two are provided with slopes matched with the clamping block.

5. The small-sized waterproof transformer with excellent sealing according to claim 4, characterized by: The cooling assembly includes an upper fin, the upper fin is a multilayer structure, one side of the upper fin is fixedly connected with a heat conduction sheet, and the end portion of the heat conduction sheet penetrates through the transformer outer protective aluminum shell and contacts the heating part of the transformer inner connecting element.

6. The small-sized waterproof transformer with excellent sealing according to claim 5, characterized by: The side surface of the transformer outer protective aluminum shell is provided with a side cooling box, the side cooling box is arranged outside the heat conduction sheet and wraps the heat conduction sheet therein, and the surface of the side cooling box is provided with a side anti-skid pattern.

7. The small-sized waterproof transformer with excellent sealing according to claim 6, characterized by: The surface of the heat conduction sheet is provided with a ventilation pipe, and the two ends of the ventilation pipe penetrate through the side cooling box, and the ventilation pipe is used to cool the cooling liquid in the side cooling box.

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