CN218351201U - Ceramic insulator with stepped structure and welding shell thereof - Google Patents
Ceramic insulator with stepped structure and welding shell thereof Download PDFInfo
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- CN218351201U CN218351201U CN202221843816.7U CN202221843816U CN218351201U CN 218351201 U CN218351201 U CN 218351201U CN 202221843816 U CN202221843816 U CN 202221843816U CN 218351201 U CN218351201 U CN 218351201U
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Abstract
The utility model discloses a ceramic insulator with a ladder structure, which is a ladder-type multi-core ceramic insulator and is integrally formed by ceramics; the multi-core ceramic insulator is provided with at least one row, and each row is provided with at least two cores; the utility model also discloses a welding shell of the ceramic insulator with a ladder structure, which comprises the multi-core ceramic insulator, a shell and a threaded column; and the ceramic insulator and the threaded column are respectively welded with the shell. The ceramic insulator has the characteristics of small spacing and high pressure resistance through the stepped structure design, has simple assembly process, saves the processing cost, and fully meets the requirement of electrical property through side wall metallization and top metallization; the welding shell has high processing precision, strong pressure resistance, difficult cracking and good adaptability; the welding shell has good air tightness, can realize high-power signal transmission, and meets the requirements of high dielectric withstand voltage and high insulation resistance of the insulator.
Description
Technical Field
The utility model belongs to the technical field of the metal package shell, concretely relates to stair structure's ceramic insulator and welding shell thereof.
Background
The insulator provides supporting and insulating effects for a power transmission line, so that the requirements on mechanical strength and insulating strength are high, the natural environment of China is relatively complex, the insulator is mostly used for insulators in outdoor or even field environments and can adapt to complex environmental conditions, conventional glass is affected by stress and the problem that glass cracks and the like are easily caused, the conventional common glass packaging shell cannot meet the requirements of users, and the ceramic insulator is produced under the condition.
However, the existing ceramic insulator and the shell are complex in assembly process and high in processing cost, and good air tightness and electrical performance cannot be effectively guaranteed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses it is expected to provide a ceramic insulator of stair structure and welding shell thereof can be through the ceramic insulator who sets up stair structure in the withstand voltage shell of high-dielectric to with its top and lateral wall metallization, realize good gas tightness and electrical property, compressive capacity is strong, solves the problem that the glass shell is easy to split.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a ceramic insulator with a ladder-shaped structure is a ladder-shaped multi-core ceramic insulator and is integrally formed by ceramics; the multi-core ceramic insulator is provided with at least one row, and each row is provided with at least two cores.
Furthermore, the multi-core ceramic insulator is a two-core ceramic insulator or a three-core ceramic insulator which are arranged in a stepped manner.
Furthermore, the top and the side wall of the two-core ceramic insulator or the three-core ceramic insulator are metalized, so that the electrical property requirement is met.
The stepped structure design enables the assembly procedure to be simple, and the processing cost to be saved; the side wall and the top of the multi-core ceramic insulator are metallized, so that the requirement on electrical performance is fully met.
The utility model also provides a welding shell of the ceramic insulator with a ladder structure, which comprises the ceramic insulator, a shell and a threaded column; and the ceramic insulator and the threaded column are respectively welded with the shell.
Furthermore, the shell also comprises a sealing ring, a lead and an electronic substrate mounting groove; the leads are connected into the ceramic insulator in parallel and welded with the ceramic insulator; the sealing ring is sleeved at the joint of the lead and the ceramic insulator and is welded and sealed; an electronic substrate is placed in the electronic substrate mounting groove; the electronic substrate is connected with the lead bonding.
The step structure of the ceramic insulator enables the leads to have enough insulating media, and meets the requirements of high dielectric withstand voltage and high insulating resistance; the electronic substrate is connected with the lead in a bonding mode, signal transmission is carried out, and high current can be borne. The sealing ring is sleeved at the joint of the lead and the ceramic insulator and is welded and sealed, so that the shell has good air tightness.
Furthermore, the ceramic insulators penetrate through the surface of the shell, and 4 three-core ceramic insulators are respectively positioned on four corners of the right half shell; two core ceramic insulators are 1, are located the casing surface lower left corner, ceramic insulator seals and inlays and welds on the casing.
Furthermore, the number of the threaded columns is 2, and the threaded columns are respectively welded on the left side and the right side of the shell.
Furthermore, the ceramic is alumina ceramic, has good thermal conductivity, lower dielectric constant, strong pressure resistance and difficult cracking, can adapt to a working environment of-55 ℃ to 125 ℃, and has good adaptability.
The housing has high processing precision, and has high insulation resistance and high dielectric withstand voltage after being assembled.
The utility model discloses beneficial effect as follows: 1) The ceramic insulator has the characteristics of small spacing and high pressure resistance through the stepped structure design, has simple assembly process, saves the processing cost, and fully meets the requirement of electrical property through side wall metallization and top metallization; 2) The ceramic insulator welding shell has high processing precision, strong pressure resistance, difficult cracking and good adaptability to complex environmental conditions; 3) The utility model discloses on the ceramic insulator welding shell, the lead wire that welds with cascaded ceramic insulator has enough insulating medium each other, and the shell has good gas tightness again, satisfies the high dielectric withstand voltage of insulator and the requirement of high insulation resistance; 4) The utility model discloses ceramic insulator welding shell passes through the electronic substrate and is connected with the lead bonding, can realize high power signal transmission.
Drawings
Fig. 1 is a schematic structural view of a two-core ceramic insulator in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a three-core ceramic insulator according to embodiment 1 of the present invention.
Fig. 3 is a schematic plan view of a welded shell of a ceramic insulator having a stepped structure according to embodiment 2 of the present invention;
fig. 4 is a schematic cross-sectional view of a welded shell of a ceramic insulator with a ladder structure according to embodiment 2 of the present invention;
wherein 1 is a case, 2 is a two-core ceramic insulator, 3 is a three-core ceramic insulator, 4 is a threaded post, 5 is a seal ring, 6 is a lead wire, 7 is an electronic substrate mounting groove, 8 is a ground lead wire, 21 is a two-core ceramic insulator top, 22 is a two-core ceramic insulator side wall, 31 is a three-core ceramic insulator top, and 32 is a three-core ceramic insulator side wall.
Detailed Description
So that the manner in which the features and elements of the invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings.
Example 1
Fig. 1 is the utility model discloses two-core ceramic insulator structural representation among the embodiment 1, fig. 2 is the utility model discloses three-core ceramic insulator structural representation among the embodiment 1.
The utility model relates to a ceramic insulator of ladder structure, for the cascaded insulator, by the ceramic integrated into one piece, including two core ceramic insulators 2 and three core ceramic insulators 3, as shown in fig. 1, fig. 2 respectively, two core ceramic insulators 2 still include two core ceramic insulator tops 21 and two core ceramic insulators lateral wall 22; the three-core ceramic insulator 3 further comprises a three-core ceramic insulator top 31 and a three-core ceramic insulator side wall 32, and the top and the side wall of the ceramic insulator are metalized to meet the electrical property requirement.
Example 2
Fig. 3 is the utility model discloses among the embodiment 2 the plane structure sketch of a stair structure's ceramic insulator's welding shell, fig. 4 is the utility model discloses among the 2 the cross section structure sketch of a stair structure's ceramic insulator's welding shell, the utility model discloses still provide a stair structure's ceramic insulator's welding shell, as shown in fig. 3, fig. 4, including casing 1, two core ceramic insulator 2, three core ceramic insulator 3, screw thread post 4, sealing ring 5, lead wire 6, electronic substrate mounting groove 7 is used for installing electronic substrate, carries out signal transmission through the lead wire, and both bonding connections can bear the high current.
In the present embodiment, the housing used in embodiment 1 includes 1 two-core ceramic insulator, 4 three-core ceramic insulators, 2 threaded posts, 14 sealing rings, and 16 lead wires. Wherein, the 16 leads include two grounding leads 8 connected with two holes at the upper left corner of the shell 1.
The ceramic insulator wears to locate the casing surface, three-core ceramic insulator 3 is located the four corners of right half casing respectively, two-core ceramic insulator 2 is located the casing surface lower left corner, ceramic insulator scarf joint is on the casing.
As shown in fig. 4, the lead 6 respectively penetrates through the two-core and three-core ceramic insulators, and the connection parts are respectively sleeved with a sealing ring 5 and are welded, fixed and sealed, so that the shell has good air tightness; the 1 left and right sides of casing still welds respectively and is equipped with 1 screw thread post.
The assembly process of the welded shell of the ceramic insulator with the stepped structure in the embodiment is as follows:
1) The shell and the threaded column are respectively subjected to nickel pre-plating treatment, so that the flowing property and the corrosion resistance requirements of silver-copper solder (Ag 72Cu28 solder) at high temperature are met;
2) Welding the two-core and three-core ceramic insulators to the shell at 830 ℃;
3) Then the threaded column is arranged in a shell groove, at the moment, attention needs to be paid that the threaded column cannot protrude, meanwhile, the needed silver-copper solder sheet needs to be arranged at the bottom of the threaded column, and a graphite die is used for assisting compaction, so that poor appearance caused by deflection of the threaded column due to bending of the solder sheet is avoided;
4) After the mounting is in place, the furnace temperature is adjusted to 830 ℃, so that the silver-copper solder (Ag 72Cu28 solder) is fully filled in the gap between the shell and the threaded column, and the shell is assembled after being shaped, so that the shell has the performances of high insulation resistance and high medium pressure resistance.
When the connecting lead is put into use, the lead is connected into the two-core ceramic insulator and the three-core ceramic insulator in parallel, and the sealing ring sleeved on the interface is welded to the shell for sealing.
The embodiment 2 of the utility model provides a in, pottery is alumina ceramics, has good thermal conductivity and lower dielectric constant, and compressive capacity is strong, difficult fracture.
The embodiment 2 of the utility model provides an in, ceramic insulator core hole diameter is 0.6mm, and the interval is 2.54mm between the lead wire, and thickness is 1.8mm (wherein boss portion 0.3 mm), and the machining precision is high, has both had sufficient insulating medium each other, satisfies the requirement of high dielectric withstand voltage and high insulation resistance, again through the stair structure, increases the distance of lateral wall metallization and top metallization position, satisfies the requirement of electric property.
The specific type of the above-mentioned devices is not limited and detailed, and the deep connection mode of the above-mentioned devices is not detailed, and can be understood by those skilled in the art as the common general knowledge.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A ceramic insulator with a step structure is characterized in that the ceramic insulator is a step-type multi-core ceramic insulator with row-by-row structure and is integrally formed by ceramic; the multi-core ceramic insulator is provided with at least one row, and each row is provided with at least two cores.
2. The stepped-structure ceramic insulator of claim 1, wherein the multi-core ceramic insulator is a two-core ceramic insulator or a three-core ceramic insulator, and is arranged in a stepped manner.
3. The stepped-structure ceramic insulator of claim 2, wherein the top and side walls of the two-core ceramic insulator or the three-core ceramic insulator are metallized.
4. A welded shell of a ceramic insulator of a stepped structure, comprising the ceramic insulator of any one of claims 1 to 3, further comprising a shell, a threaded post; and the ceramic insulator and the threaded column are respectively welded with the shell.
5. The soldering shell of a ceramic insulator with a stair structure according to claim 4, wherein the shell further comprises a sealing ring, a lead wire, an electronic substrate mounting groove; the leads are connected into the ceramic insulator in parallel and welded with the ceramic insulator; the sealing ring is sleeved at the joint of the lead and the ceramic insulator and is welded and sealed; an electronic substrate is placed in the electronic substrate mounting groove; the electronic substrate is connected with a lead bonding.
6. The welded shell of ceramic insulators with a ladder structure as claimed in claim 4, wherein the ceramic insulators are arranged on the surface of the shell in a penetrating manner, and the number of the three-core ceramic insulators is 4, and the three-core ceramic insulators are respectively positioned on four corners of the right half shell; two core ceramic insulators are 1, are located the casing surface lower left corner, ceramic insulator seals and inlays and welds on the casing.
7. The welded shell of a ceramic insulator with a ladder structure as claimed in claim 4, wherein the number of said screw-threaded columns is 2, and said screw-threaded columns are welded to the left and right sides of the shell respectively.
8. The welded shell of a ceramic insulator with a ladder structure as claimed in claim 4, wherein the ceramic is alumina ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221843816.7U CN218351201U (en) | 2022-07-18 | 2022-07-18 | Ceramic insulator with stepped structure and welding shell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221843816.7U CN218351201U (en) | 2022-07-18 | 2022-07-18 | Ceramic insulator with stepped structure and welding shell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218351201U true CN218351201U (en) | 2023-01-20 |
Family
ID=84913244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221843816.7U Active CN218351201U (en) | 2022-07-18 | 2022-07-18 | Ceramic insulator with stepped structure and welding shell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218351201U (en) |
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2022
- 2022-07-18 CN CN202221843816.7U patent/CN218351201U/en active Active
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