Load switch internal desiccant seal

Abstract

The utility model relates to the field of electrical equipment discloses internal desiccant sealing device of load switch, including load switch, the left side of load switch is provided with positioning shell, the right side fixedly connected with positioning block of load switch, the inner wall of positioning block is compatible with positioning shell, the inner wall of load switch is provided with dry sealing structure, the outer wall of positioning shell is provided with positioning structure, dry sealing structure includes sealing plate, the number of sealing plate is two, the top and bottom of load switch are provided with desiccant storage groove respectively. In the utility model, through dry sealing structure, utilize the partition to divide storage groove into multiple independent cavities, increase the placing amount of desiccant, improve dry efficiency. At the same time, the through -hole design on sealing plate guarantees the air circulation, prevents desiccant from leaking out, effectively maintains the dry environment inside load switch, prolongs the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment, and in particular to a desiccant sealing device inside a load switch. Background Technology

[0002] The internal desiccant sealing device for load switches is a sealing device used in electrical equipment. Its main purpose is to maintain a dry environment inside the load switch, preventing equipment failure and performance degradation caused by moisture. This device uses a desiccant storage tank inside the load switch to absorb moisture from the internal air, thereby extending the equipment's service life and ensuring its normal operation.

[0003] In existing technology, the desiccant sealing device inside a load switch typically includes a desiccant storage tank located inside the load switch. During use, the load switch cover is first opened, and the desiccant is poured into the storage tank. Then, the cover is reinstalled, ensuring a tight seal. During operation, the desiccant absorbs moisture from inside the load switch, maintaining a dry internal environment. When the desiccant becomes ineffective, the cover needs to be opened again to replace it with a new one.

[0004] Problems with Existing Technology: However, in existing technologies, the desiccant storage tank is typically a single space, which limits the amount of desiccant that can be placed, resulting in lower drying efficiency and requiring more frequent desiccant replacements. Furthermore, existing devices have poor sealing, failing to effectively prevent desiccant leakage and also failing to ensure air circulation, which may affect the desiccant's moisture absorption effect and consequently impact the drying environment inside the load switch. Therefore, a desiccant sealing device for the inside of the load switch is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a desiccant sealing device inside the load switch, which aims to improve the problems of insufficient desiccant placement, poor sealing and poor air circulation in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a desiccant sealing device inside a load switch, comprising a load switch, a positioning shell provided on the left side of the load switch, a positioning block fixedly connected to the right side of the load switch, the positioning block being adapted to the inner wall of the positioning shell, a drying and sealing structure provided on the inner wall of the load switch, and a positioning structure provided on the outer wall of the positioning shell. The drying and sealing structure includes two sealing plates. The top and bottom of the load switch are respectively provided with desiccant storage slots. The inner wall of the desiccant storage slots is fixedly connected with a partition plate. The two sealing plates are respectively in contact with the top and bottom of the load switch. Several sets of through holes are provided on the surface of the sealing plates. A shaft is connected through each of the through holes of the two sealing plates. The bottom end surface of the shaft is provided with an external thread. A threaded sleeve is threadedly connected to the external thread of the shaft.

[0007] As a further description of the above technical solution: the positioning structure includes a cylinder shell, the back of the cylinder shell is fixedly connected to the outer wall of the positioning shell, the front end of the cylinder shell is movably connected to an insert rod, the surface of the insert rod is fixedly connected to a limiting ring, the front end of the limiting ring is elastically connected to the inner wall of the cylinder shell through a spring, the front side of the positioning shell is provided with a slot, and the rear end of the insert rod is inserted into the inner wall of the slot.

[0008] As a further description of the above technical solution: the partition plate is X-shaped, and the desiccant storage tank is divided into multiple independent cavities by the partition plate.

[0009] As a further description of the above technical solution: the two sealing plates are symmetrically arranged at the top and bottom of the load switch, and the top surface of the threaded sleeve contacts the bottom of the sealing plate below.

[0010] As a further description of the above technical solution: all of the multiple independent cavities are triangular in shape.

[0011] As a further description of the above technical solution: one end of the spring is fixedly connected to the front end of the limiting ring, and the other end of the spring is fixedly connected to the inner wall of the cylinder shell.

[0012] As a further description of the above technical solution: the edge of the limiting ring contacts the inner wall of the cylinder shell.

[0013] As a further description of the above technical solution: the front of the insertion rod is fixedly connected with an operating knob.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the drying and sealing structure uses a partition plate to divide the storage tank into multiple independent cavities, increasing the amount of desiccant that can be placed and improving drying efficiency. At the same time, the through-hole design on the sealing plate ensures air circulation while preventing desiccant leakage, effectively maintaining a dry environment inside the load switch and extending the equipment's service life.

[0015] 2. In this utility model, the quick splicing and stable fixing of load switches are achieved through the cooperation of the positioning shell and the positioning block, as well as the insertion and limiting of the positioning structure. The operation is simple, the assembly efficiency of the equipment and the stability of the overall structure are improved, and the reliability of the load switch during use is ensured. Attached Figure Description

[0016] Figure 1 This is a front view of the desiccant sealing device inside the load switch proposed in this utility model; Figure 2 This is a rear view of the desiccant sealing device inside the load switch proposed in this utility model; Figure 3 This is a schematic diagram of the assembly of the internal desiccant sealing device for the load switch proposed in this utility model; Figure 4 This is a disassembly diagram of the desiccant sealing device inside the load switch proposed in this utility model; Figure 5 This is a top sectional view of the positioning shell and cylinder shell of the internal desiccant sealing device for the load switch proposed in this utility model.

[0017] Legend: 1. Load switch; 2. Positioning housing; 3. Positioning structure; 31. Cylinder housing; 32. Insert rod; 33. Operating knob; 34. Spring; 35. Slot; 4. Drying and sealing structure; 41. Sealing plate; 42. Shaft; 43. Divider plate; 44. Threaded sleeve; 5. Positioning block. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 3This utility model provides an embodiment of a desiccant sealing device inside a load switch, comprising a load switch 1, a positioning shell 2 fixedly connected to the left side of the load switch 1, the positioning shell 2 being used to cooperate with positioning blocks 5 of other load switches 1 to realize splicing between multiple load switches 1, a positioning block 5 fixedly connected to the right side of the load switch 1, the positioning block 5 being adapted to the inner wall of the positioning shell 2, this adaptation relationship ensuring that the positioning block 5 can be accurately inserted into the positioning shell 2 to achieve stable splicing, a drying and sealing structure 4 is provided on the inner wall of the load switch 1, the drying and sealing structure 4 being used to seal and store desiccant to maintain a dry environment inside the load switch 1, and a positioning structure 3 is provided on the outer wall of the positioning shell 2, the positioning structure 3 being used to realize the positioning and fixing between the load switches 1; Reference Figure 2 , Figure 4 The drying and sealing structure 4 includes two sealing plates 41, which are respectively installed on the top and bottom of the load switch 1 to seal the desiccant storage tank. The top and bottom of the load switch 1 each have a desiccant storage tank for storing desiccant and absorbing moisture inside the load switch 1. A partition plate 43 is fixedly connected to the inner wall of the desiccant storage tank. The partition plate 43 is X-shaped and divides the desiccant storage tank into multiple independent cavities, each of which is triangular. This design increases the amount of desiccant that can be placed, improving drying efficiency. The two sealing plates 41 are in contact with the top and bottom of the load switch 1, respectively, and are symmetrically arranged on the top of the load switch 1. The symmetrical arrangement at the top and bottom ensures the uniformity and stability of the seal. The top surface of the threaded sleeve 44 contacts the bottom of the lower sealing plate 41. The threaded sleeve 44 is used to fix the sealing plate 41 and ensure that it fits tightly against the inner wall of the load switch 1. Several sets of through holes are opened on the surface of the sealing plate 41. The through holes are used for air circulation so that the desiccant can effectively absorb moisture in the air. A shaft 42 is connected through the through holes of both sealing plates 41. The shaft 42 is used to connect the sealing plate 41 and the threaded sleeve 44. The bottom surface of the shaft 42 is provided with external threads. The external threads cooperate with the threaded sleeve 44 to fix the sealing plate 41. The threaded sleeve 44 is threadedly connected to the external threads of the shaft 42. The threaded sleeve 44 is tightened on the shaft 42 to fasten the sealing plate 41.

[0020] Reference Figure 1 , Figure 2 , Figure 5The positioning structure 3 includes a cylinder shell 31, the back of which is fixedly connected to the outer wall of the positioning shell 2. The cylinder shell 31 provides support and protection for the positioning structure 3. A rod 32 is movably connected to the front end of the cylinder shell 31. The rod 32 is used to insert into the slot 35 of the positioning shell 2 to achieve positioning and fixation. An operating knob 33 is fixedly connected to the front of the rod 32. The operating knob 33 is used to manually operate the extension and retraction of the rod 32. A limit ring is fixedly connected to the surface of the rod 32. The edge of the limit ring contacts the inner wall of the cylinder shell 31. The limit ring is used to limit the range of movement of the rod 32 and prevent it from moving excessively. The front end of the telescopic limiting ring is elastically connected to the inner wall of the cylinder shell 31 via a spring 34. One end of the spring 34 is fixedly connected to the front end of the limiting ring, and the other end of the spring 34 is fixedly connected to the inner wall of the cylinder shell 31. The spring 34 provides elastic force, enabling the insertion rod 32 to automatically reset and maintain a tight fit with the slot 35. The front of the positioning shell 2 has a slot 35, which is used to cooperate with the insertion rod 32 to fix the positioning shell 2 and the positioning block 5. The rear end of the insertion rod 32 is inserted into the inner wall of the slot 35. This insertion relationship ensures a stable connection between the load switches 1.

[0021] Working principle: When sealing the desiccant inside load switch 1 is required, the desiccant is first placed in a separate cavity within the desiccant storage tank. Then, two sealing plates 41 are placed at the top and bottom of load switch 1 respectively, with the shaft 42 passing through the through-hole of the sealing plate 41. The threaded sleeve 44 is then tightened onto the external thread of the shaft 42, thereby ensuring that the sealing plates 41 fit tightly against the top and bottom of load switch 1, achieving a seal on the desiccant storage tank. Simultaneously, the through-hole on the sealing plate 41 allows air circulation, enabling the desiccant to perform its moisture-absorbing function. When load switches 1 need to be connected to each other, the positioning block 5 of one load switch 1 is inserted into the positioning shell 2 of the other load switch 1. At this time, by operating the knob 33, the insertion rod 32 is pushed to overcome the elastic force of the spring 34 and move backward. When the rear end of the insertion rod 32 is aligned with the slot 35 on the positioning shell 2, the operating knob 33 is released. Under the elastic force of the spring 34, the insertion rod 32 is automatically inserted into the slot 35, realizing the insertion limit of the positioning structure 3 on the positioning shell 2, thereby completing the splicing between the load switches 1.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A desiccant sealing device inside a load switch, comprising a load switch (1), characterized in that: The load switch (1) is fixedly connected to a positioning shell (2) on the left side, and a positioning block (5) is fixedly connected to the right side of the load switch (1). The positioning block (5) is adapted to the inner wall of the positioning shell (2). The inner wall of the load switch (1) is provided with a drying and sealing structure (4), and the outer wall of the positioning shell (2) is provided with a positioning structure (3). The drying and sealing structure (4) includes a sealing plate (41), and there are two sealing plates (41). The top and bottom of the load switch (1) are respectively provided with desiccant storage tanks. The inner wall of the desiccant storage tank is fixedly connected with a partition plate (43). The two sealing plates (41) are respectively in contact with the top and bottom of the load switch (1). The surface of the sealing plate (41) is provided with several sets of through holes. The through holes of the two sealing plates (41) are connected to a shaft (42). The bottom end surface of the shaft (42) is provided with an external thread. The external thread of the shaft (42) is threadedly connected with a threaded sleeve (44).

2. The desiccant sealing device inside the load switch according to claim 1, characterized in that: The positioning structure (3) includes a cylinder shell (31), the back of which is fixedly connected to the outer wall of the positioning shell (2), and a rod (32) is movably connected to the front end of the cylinder shell (31). A limiting ring is fixedly connected to the surface of the rod (32), and the front end of the limiting ring is elastically connected to the inner wall of the cylinder shell (31) through a spring (34). A slot (35) is provided on the front side of the positioning shell (2), and the rear end of the rod (32) is inserted into the inner wall of the slot (35).

3. The desiccant sealing device inside the load switch according to claim 1, characterized in that: The partition plate (43) is X-shaped, and the desiccant storage tank is divided into multiple independent cavities by the partition plate (43).

4. The desiccant sealing device inside the load switch according to claim 1, characterized in that: The two sealing plates (41) are symmetrically arranged at the top and bottom of the load switch (1), and the top surface of the threaded sleeve (44) is in contact with the bottom of the sealing plate (41) below.

5. The desiccant sealing device inside the load switch according to claim 3, characterized in that: All of the aforementioned independent cavities are triangular in shape.

6. The desiccant sealing device inside the load switch according to claim 2, characterized in that: One end of the spring (34) is fixedly connected to the front end of the limiting ring, and the other end of the spring (34) is fixedly connected to the inner wall of the cylinder shell (31).

7. The desiccant sealing device inside the load switch according to claim 2, characterized in that: The edge of the limiting ring contacts the inner wall of the cylinder shell (31).

8. The desiccant sealing device inside the load switch according to claim 2, characterized in that: An operating knob (33) is fixedly connected to the front of the insertion rod (32).

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