Packaging shell of voltage transformer

Abstract

The utility model belongs to the technical field of voltage transformer protection equipment, and particularly relates to a packaging shell of a voltage transformer, which comprises a packaging bottom plate, a packaging shell body, a sealing mechanism and a wire holder. The sealing mechanism comprises a first sealing assembly and a second sealing assembly. The first sealing assembly comprises a first sealing seat, a first sealing ring and a first sealing plunger. The second sealing assembly comprises a second sealing seat, a second sealing ring and a second sealing plunger. According to the packaging shell of the voltage transformer, the double-sealing assembly is adopted, and dust, moisture and other external impurities are effectively prevented from entering the packaging shell; as the sealing performance is improved, the packaging shell can effectively prevent dust from invading; meanwhile, gaps are reduced through the integrally-formed packaging bottom plate and packaging shell structure, the dust entering possibility is further reduced, electrical elements of the voltage transformer are protected against dust influences, and the working stability and reliability of the voltage transformer are improved.

Description

A package for a voltage transformer Technical Field

[0001] This utility model belongs to the technical field of voltage transformer protection equipment, and in particular relates to a packaging shell for a voltage transformer. Background Technology

[0002] Voltage transformers, as important electrical devices in power systems, are used to proportionally convert high voltage to low voltage, providing suitable voltage signals for measuring instruments, protection devices, and other applications. However, voltage transformers require a stable and reliable operating environment during operation.

[0003] Existing voltage transformer enclosures have certain shortcomings in terms of sealing and dust protection. Some enclosures have simple sealing structures, which are prone to poor sealing, allowing dust and moisture to enter the enclosure and affect the electrical performance of the voltage transformer, reducing its service life and operational stability. Summary of the Invention

[0004] The purpose of this invention is to provide a casing for voltage transformers, aiming to solve the technical problem in the prior art where poor sealing easily occurs, allowing dust, moisture, etc. to enter the casing, affecting the electrical performance of the voltage transformer, reducing its service life and operational stability.

[0005] To achieve the above objectives, the voltage transformer enclosure provided in this embodiment includes an enclosure base plate, an enclosure housing, a sealing mechanism, and a terminal block. The enclosure housing is connected to the top side of the enclosure base plate, the sealing mechanism is connected to the enclosure housing, and the terminal block is disposed between the enclosure base plate and the enclosure housing, and is connected to the enclosure base plate and the enclosure housing respectively.

[0006] The sealing mechanism includes a first sealing component and a second sealing component. The first sealing component is disposed on one side of the second sealing component. The first sealing component includes a first sealing seat, a first sealing ring, and a first sealing plunger. The first sealing seat is connected to the encapsulation housing. The first sealing ring is connected to the top side of the first sealing seat. The first sealing plunger is inserted into the first sealing ring.

[0007] The second sealing assembly includes a second sealing seat, a second sealing ring, and a second sealing plunger. The second sealing seat is connected to the encapsulation housing, the second sealing ring is connected to the top side of the second sealing seat, and the second sealing plunger is inserted into the second sealing ring.

[0008] As an optional solution of this utility model, the packaging base plate is provided with four mounting holes, which are evenly distributed on the packaging base plate; the packaging base plate and the packaging shell are integrally formed.

[0009] As an optional solution of this utility model, the side of the packaging shell is provided with a pressure-resistant groove. There are two pressure-resistant grooves, both of which are provided on the side of the packaging shell. The pressure-resistant grooves are arranged in a trapezoidal shape.

[0010] As an optional embodiment of this utility model, the first sealing plunger is interference-fitted with the first sealing ring; the second sealing plunger is interference-fitted with the second sealing ring.

[0011] As an optional solution of this utility model, the terminal block is fixedly connected to the packaging base plate and the packaging shell respectively; the terminal block is provided with a wiring hole in the middle, the wiring hole is connected to the packaging shell, and the terminal block is provided with a wiring groove on the side, and there are two wiring grooves, which are arranged in parallel and opposite directions.

[0012] The above-mentioned technical solutions in the encapsulation shell of the voltage transformer provided in this embodiment of the utility model have at least one of the following technical effects:

[0013] The voltage transformer enclosure provided in this application employs a dual-sealing assembly, namely a first sealing assembly and a second sealing assembly. The first sealing plunger is interference-fitted with the first sealing ring, and the second sealing plunger is interference-fitted with the second sealing ring. This interference fit ensures a tight seal, effectively preventing external impurities such as dust and moisture from entering the enclosure, thus providing a stable operating environment for the voltage transformer. Due to the improved sealing performance, the enclosure effectively blocks dust intrusion. At the same time, the integrated encapsulation base plate and enclosure structure reduce gaps, further reducing the possibility of dust intrusion, protecting the electrical components of the voltage transformer from dust, and improving its operational stability and reliability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a perspective view of the packaging shell of the voltage transformer provided in an embodiment of this utility model.

[0016] Figure 2 is a perspective view of the package shell of the voltage transformer provided in the embodiment of this utility model.

[0017] Figure 3 is an exploded view of the packaging shell of the voltage transformer provided in the embodiment of this utility model.

[0018] Figure 4 is an exploded view of the packaging shell of the voltage transformer provided in the embodiment of this utility model.

[0019] The following are the labeling elements in the figure:

[0020] 1. Encapsulation base plate; 2. Encapsulation housing; 3. Terminal block; 4. First sealing assembly; 5. Second sealing assembly;

[0021] 11. Install the bottom hole;

[0022] 21. Compression groove;

[0023] 31. Wiring hole; 32. Wiring groove;

[0024] 41. First sealing seat; 42. First sealing ring; 43. First sealing plunger;

[0025] 51. Second sealing seat; 52. Second sealing ring; 53. Second sealing plunger. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In one embodiment of this utility model, as shown in Figures 1 to 4, a package shell for a voltage transformer is provided, including a package base plate 1, a package shell 2, a sealing mechanism, and a terminal block 3. The package shell 2 is fixedly connected to the top side of the package base plate 1, the sealing mechanism is connected to the package shell 2, and the terminal block 3 is disposed between the package base plate 1 and the package shell 2, and is fixedly connected to the package base plate 1 and the package shell 2 respectively.

[0031] The sealing mechanism includes a first sealing component 4 and a second sealing component 5. The first sealing component 4 is disposed on one side of the second sealing component 5. The first sealing component 4 includes a first sealing seat 41, a first sealing ring 42 and a first sealing plunger 43. The first sealing seat 41 is fixedly connected to the encapsulation housing 2. The first sealing ring 42 is fixedly connected to the top side of the first sealing seat 41. The first sealing plunger 43 is inserted into the first sealing ring 42.

[0032] The second sealing assembly 5 includes a second sealing seat 51, a second sealing ring 52, and a second sealing plunger 53. The second sealing seat 51 is fixedly connected to the encapsulation housing 2, the second sealing ring 52 is fixedly connected to the top side of the second sealing seat 51, and the second sealing plunger 53 is inserted into the second sealing ring 52.

[0033] The voltage transformer enclosure provided in this application employs a dual sealing assembly, namely a first sealing assembly 4 and a second sealing assembly 5. The first sealing plunger 43 is interference-fitted with the first sealing ring 42, and the second sealing plunger 53 is interference-fitted with the second sealing ring 52. This interference fit ensures tight sealing, effectively preventing external impurities such as dust and moisture from entering the enclosure, thus providing a stable working environment for the voltage transformer. Due to the improved sealing performance, the enclosure can effectively block dust intrusion. At the same time, the integrated enclosure base plate 1 and enclosure shell 2 structure reduces gaps, further reducing the possibility of dust intrusion, protecting the electrical components of the voltage transformer from dust, and improving its operational stability and reliability.

[0034] The base plate 1 and the housing 2 are connected to form a space for accommodating the voltage transformer. The mounting holes 11 on the base plate 1 can be used to fix the entire housing in the corresponding position. The pressure-resistant grooves 21 on the side of the housing 2 enhance the structure's pressure resistance and disperse stress generated by external impacts. In the first sealing assembly 4, the first sealing seat 41 is connected to the housing 2, the first sealing ring 42 provides sealing elasticity, and the first sealing plunger 43 is interference-fitted with the first sealing ring 42, tightly inserted to prevent external dust, moisture, etc., from entering through this part. Similarly, in the second sealing assembly 5, the second sealing seat 51, the second sealing ring 52, and the second sealing plunger 53 work together, through an interference-fit insertion method, to further prevent external impurities from entering.

[0035] In another embodiment of this utility model, the encapsulation base plate 1 is provided with four mounting holes 11, which are evenly distributed on the encapsulation base plate 1; the encapsulation base plate 1 and the encapsulation shell 2 are integrally formed. The four evenly distributed mounting holes 11 can be used to securely install the voltage transformer's encapsulation shell onto target structures such as distribution cabinets or equipment brackets through bolts, screws, or other connecting parts, ensuring that the encapsulation shell is fixed in position during operation and will not shake or shift arbitrarily, providing a foundation for the stable operation of the internal voltage transformer. The evenly distributed mounting holes 11 facilitate the determination of the encapsulation shell's orientation and angle during installation, ensuring the accuracy and consistency of installation and facilitating standardized installation operations.

[0036] In another embodiment of this utility model, the side of the encapsulation housing 2 is provided with pressure-resistant grooves 21. There are two pressure-resistant grooves 21, both of which are disposed on the side of the encapsulation housing 2, and the pressure-resistant grooves 21 are trapezoidal in shape. When subjected to accidental collisions or vibrations, the trapezoidal pressure-resistant grooves 21 can play a buffering role. They can absorb some of the impact energy, reduce the impact force transmitted to the internal voltage transformer, and reduce the risk of equipment failure due to external impact.

[0037] In another embodiment of this utility model, the first sealing plunger 43 is interference-fitted with the first sealing ring 42; the second sealing plunger 53 is interference-fitted with the second sealing ring 52. The interference fit ensures that there is no gap or only a very small gap between the sealing plunger and the sealing ring. When the sealing plunger is inserted into the sealing ring, the sealing ring undergoes elastic deformation, tightly wrapping the sealing plunger, thereby preventing external dust, moisture, gas, and other substances from entering the encapsulation shell, effectively protecting the voltage transformer from external environmental factors and ensuring its normal operation. The interference fit relies on the elastic restoring force of the sealing ring and the friction between the plunger and the sealing ring to maintain the sealing state. Even if vibration occurs or external forces are applied during equipment operation, the interference fit structure can ensure the stability of the sealing performance, making leakage less likely and improving the reliability and durability of the seal.

[0038] In another embodiment of this utility model, the terminal block 3 is fixedly connected to the encapsulation base plate 1 and the encapsulation shell 2 respectively; the terminal block 3 has a wiring hole 31 in the middle, which is connected to the encapsulation shell 2; the terminal block 3 has two wiring grooves 32 on its side, which are arranged in parallel and opposite directions. The terminal block 3 is located between and connected to the encapsulation base plate 1 and the encapsulation shell 2. Its wiring hole 31 is used for the introduction of voltage transformer cables, and the side wiring grooves 32 facilitate cable management and fixation, realizing a reliable connection between the voltage transformer and the external circuit.

[0039] The voltage transformer enclosure provided in this application employs a dual sealing assembly, namely a first sealing assembly 4 and a second sealing assembly 5. The first sealing plunger 43 is interference-fitted with the first sealing ring 42, and the second sealing plunger 53 is interference-fitted with the second sealing ring 52. This interference fit ensures tight sealing, effectively preventing external impurities such as dust and moisture from entering the enclosure, thus providing a stable working environment for the voltage transformer. Due to the improved sealing performance, the enclosure can effectively block dust intrusion. At the same time, the integrated enclosure base plate 1 and enclosure shell 2 structure reduces gaps, further reducing the possibility of dust intrusion, protecting the electrical components of the voltage transformer from dust, and improving its operational stability and reliability.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 package housing for a voltage transformer, characterized in that, The device includes a packaging base plate, a packaging shell, a sealing mechanism, and a terminal block. The packaging shell is connected to the top side of the packaging base plate, the sealing mechanism is connected to the packaging shell, and the terminal block is disposed between the packaging base plate and the packaging shell, and connected to both the packaging base plate and the packaging shell respectively. The sealing mechanism includes a first sealing component and a second sealing component. The first sealing component is disposed on one side of the second sealing component and includes a first sealing seat, a first sealing ring, and a first sealing plunger. The first sealing seat is connected to the packaging shell, the first sealing ring is connected to the top side of the first sealing seat, and the first sealing plunger is inserted into the first sealing ring. The second sealing component includes a second sealing seat, a second sealing ring, and a second sealing plunger. The second sealing seat is connected to the packaging shell, the second sealing ring is connected to the top side of the second sealing seat, and the second sealing plunger is inserted into the second sealing ring.

2. The enclosure for a voltage transformer according to claim 1, characterized in that, The packaging base plate is provided with four mounting holes, which are evenly distributed on the packaging base plate; the packaging base plate and the packaging shell are integrally formed.

3. The enclosure for a voltage transformer according to claim 1, characterized in that, The packaging shell has two pressure-resistant grooves on its side, both of which are located on the side of the packaging shell and are trapezoidal in shape.

4. The enclosure for a voltage transformer according to claim 1, characterized in that, The first sealing plunger is interference-fitted with the first sealing ring; the second sealing plunger is interference-fitted with the second sealing ring.

5. The enclosure for a voltage transformer according to claim 1, characterized in that, The terminal block is fixedly connected to the packaging base plate and the packaging shell respectively; the terminal block has a wiring hole in the middle, which is connected to the packaging shell; the terminal block has a wiring groove on the side, and there are two wiring grooves, which are arranged in parallel and opposite directions.

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