Glass sintering electrical connector

Abstract

The utility model discloses a glass sintering electrical connector, which comprises a shell, a glass sintering layer, a plurality of conductive needles, a first filling layer and a second filling layer, the shell is made of cylindrical stainless steel materials, an accommodating through hole is arranged in the shell along the length direction of the shell, the glass sintering layer is arranged in the center of the accommodating through hole, and the conductive needles are arranged in the accommodating through hole. The accommodating through hole is divided into a first accommodating groove and a second accommodating groove which are not communicated, a plurality of conductive needles penetrate through the glass sintering layer at intervals, one end of each conductive needle is accommodated in the first accommodating groove and is used for being electrically connected with a first wire, and the other end of each conductive needle is accommodated in the second accommodating groove and is used for being electrically connected with a second wire; the first filling layer is arranged in the first containing groove, and the second filling layer is arranged in the second containing groove. Through the above mode, the conductive pins of the electrical connector are not easy to fall off from the housing, and the sealing performance of the electrical connector is relatively good, so that the service life of the electrical connector is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically a glass sintered electrical connector. Background Technology

[0002] In explosion-proof scenarios such as energy storage equipment and petrochemicals, electrical connectors need to meet IP68 protection level and ExdIICT6 explosion-proof certification requirements. However, traditional electrical connectors on the market have some defects: most electrical connector shells on the market are formed by single epoxy resin encapsulation, which is prone to cracking and will lead to a decrease in sealing performance after long-term use; and the thermal expansion coefficients of the electrical connector shell and the conductive pins of the electrical connector are very different, which can easily cause the connection interface to crack after a long period of use (i.e., the temperature that the two can withstand is different, resulting in cracking at the connection), which seriously affects the service life. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a glass sintered electrical connector that can solve the aforementioned technical problems.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a glass sintered electrical connector, characterized in that it comprises: a housing, cylindrical in shape, made of stainless steel, wherein a receiving through hole is provided in the housing along its length direction; a glass sintered layer, disposed at the center of the receiving through hole in the housing, dividing the receiving through hole into a first receiving groove and a second receiving groove that are not interconnected; a plurality of conductive pins, spaced apart and penetrating the glass sintered layer, wherein one end of the conductive pin is received in the first receiving groove and used for electrical connection with a first wire, and the other end of the conductive pin is received in the second receiving groove and used for electrical connection with a second wire; a first filling layer, disposed in the first receiving groove; and a second filling layer, disposed in the second receiving groove.

[0007] Preferably, the conductive needle is a solid body, wherein one end of the conductive needle has a first welding hole along its length direction, and the other end of the conductive needle has a second welding hole along its length direction.

[0008] Preferably, one end of the conductive needle has a first vent hole communicating with the first welding hole on its sidewall, and the other end of the conductive needle has a second vent hole communicating with the second welding hole on its sidewall.

[0009] Preferably, the length of one end of the conductive needle exposed in the first receiving groove is less than the depth of the first receiving groove, and the length of the other end of the conductive needle exposed in the second receiving groove is less than the depth of the second receiving groove.

[0010] Preferably, both the first filler layer and the second filler layer are epoxy resin layers.

[0011] Preferably, the first filling layer is flush with the end face of the first receiving groove, and the second filling layer is flush with the end face of the second receiving groove.

[0012] Preferably, the outer sidewall of the housing is provided with a first annular groove and a second annular groove at intervals, wherein a first fluororubber sealing ring is provided in the first annular groove and a second fluororubber sealing ring is provided in the second annular groove.

[0013] Preferably, the outer diameter of the shell is 25.37±0.1mm, and the thickness of the glass sintered layer is 6.0±0.2mm.

[0014] Preferably, the depth of the first welding hole and the second welding hole is 4.5±0.1mm, the diameter of the first welding hole and the second welding hole is 1.5±0.05mm, and the diameter of the first vent hole and the second vent hole is 0.6±0.02mm.

[0015] Preferably, the multiple conductive needles penetrate the glass sintered layer at a spacing of 4.0±0.1mm.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a glass-sintered electrical connector with the following advantages: The glass-sintered electrical connector disclosed in this utility model includes a shell, a glass-sintered layer, multiple conductive pins, a first filling layer, and a second filling layer. The shell is made of cylindrical stainless steel, and a receiving through hole is provided along its length. The glass-sintered layer is located at the center of the receiving through hole, dividing the receiving through hole into a non-connected first receiving groove and a second receiving groove. The multiple conductive pins pass through the glass-sintered layer at intervals. One end of each conductive pin is received in the first receiving groove and used for electrical connection with a first wire, and the other end of each conductive pin is received in the second receiving groove and used for electrical connection with a second wire. The first filling layer is disposed in the first receiving groove, and the second filling layer is disposed in the second receiving groove. Through the above method, the conductive pins of the electrical connector of this utility model are less likely to fall out of the shell, and the electrical connector also has better sealing performance, thereby extending its service life. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the glass sintered electrical connector of this utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of the connector.

[0020] Figure 3 for Figure 1 A schematic diagram of the first partial structure of the connector;

[0021] Figure 4 for Figure 1 A schematic diagram of the second partial structure of the connector. Detailed Implementation

[0022] 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.

[0023] like Figure 1-4 As shown, the present invention provides a glass sintered electrical connector, including a housing 1, a glass sintered layer 2, multiple conductive pins 3, a first filling layer and a second filling layer.

[0024] The housing 1 is made of cylindrical stainless steel, and a receiving through hole 11 is provided inside the housing 1 along its own length direction.

[0025] The glass sintered layer 2 is disposed at the center of the receiving through hole 11 in the housing 1, so as to divide the receiving through hole 11 into a first receiving groove 111 and a second receiving groove 112 that are not connected; it should be understood that since the electrical connector is usually used in the fields of energy storage and petrochemicals, the glass sintered layer 2 can completely prevent the leakage of materials such as oil.

[0026] Multiple conductive needles 3 are spaced apart and penetrate the glass sintered layer 2. One end of each conductive needle 3 is housed in a first receiving groove 111 and is used for electrical connection with a first wire. The other end of each conductive needle 3 is housed in a second receiving groove 112 and is used for electrical connection with a second wire. It should be understood that the connection between the conductive needle 3 and the glass sintered layer 2 is tightly fitted, and no material will seep out from the connection. The first wire serves to input electrical energy, while the second wire outputs electrical energy to the connected end, thus enabling the conductive needle 3 to conduct electrical energy.

[0027] The first filling layer is disposed within the first receiving groove 111.

[0028] The second filling layer is disposed within the second receiving groove 112. It can be understood that the first and second filling layers can further isolate the leakage of materials. At the same time, the first wire passes through the first filling layer and is connected to the conductive needle 3, and the second wire passes through the second filling layer and is connected to the conductive needle 3.

[0029] Furthermore, the conductive needle 3 is a solid body, wherein one end of the conductive needle 3 has a first soldering hole 31 along its length direction, and the other end of the conductive needle 3 has a second soldering hole 32 along its length direction. It should be understood that the first wire passes through the first soldering hole 31 and connects to one end of the conductive needle 3, and after the first wire passes through the first soldering hole 31, the first soldering hole 31 needs to be tinned to fix the first wire. The second wire passes through the second soldering hole 32 and connects to the other end of the conductive needle 3, and after the second wire passes through the second soldering hole 32, the second soldering hole 32 is tinned to fix the second wire.

[0030] Furthermore, one end of the conductive needle 3 has a first vent 311 communicating with the first welding hole 31 on its sidewall, and the other end of the conductive needle 3 has a second vent 321 communicating with the second welding hole 32 on its sidewall. It should be understood that when the first welding hole 31 is welded to one end of the conductive needle 3, the first vent 311 prevents the possibility of tiny air bubbles remaining at the connection between the first welding hole 31 and the conductive needle 3 during welding. Similarly, when the second welding hole 32 is welded to the other end of the conductive needle 3, the second vent 312 prevents the possibility of tiny air bubbles remaining at the connection between the second welding hole 32 and the conductive needle 3 during welding (residual air bubbles at this point can cause abnormal discharge of the conductive needle 3 during subsequent conduction). This also avoids the possibility of abnormal discharge caused by the conductive needle 3 and prevents a reduction in insulation strength.

[0031] In this embodiment, the length of one end of the conductive needle 3 exposed in the first receiving groove 111 is smaller than the depth of the first receiving groove 111, and the length of the other end of the conductive needle 3 exposed in the second receiving groove 112 is smaller than the depth of the second receiving groove 112.

[0032] Preferably, both the first filler layer and the second filler layer are epoxy resin layers.

[0033] It is understood that the first filling layer is formed by filling the first receiving groove 111 with epoxy resin after the first and second wires are connected to the conductive pin 3. Then, the first filling layer needs to be cured at a set temperature for 24 hours. Next, the electrical connector is rotated 180° so that the second filling groove 112 faces upward to prevent the epoxy resin from flowing out when filling it. The epoxy resin is then filled into the second receiving groove 112 and cured at a set temperature for another 48 hours to form the second filling layer. Since the first solder hole 31 and the second solder hole 32 have been tinned before filling the epoxy resin layer, the epoxy resin will not damage the power transmission of the conductive pin 3.

[0034] Preferably, the first filling layer is flush with the end face of the first receiving groove 111, and the second filling layer is flush with the end face of the second receiving groove 112.

[0035] In this embodiment, a first annular groove 12 and a second annular groove 13 are spaced around the outer sidewall of the housing 1. A first fluororubber sealing ring 4 is arranged in the first annular groove 12, and a second fluororubber sealing ring 5 is arranged in the second annular groove 13. It should be understood that the electrical connector can be regarded as a male plug with a female connector, and the first fluororubber sealing ring 4 and the second fluororubber sealing ring 5 can seal when the male plug (i.e., the electrical connector) is inserted into the female plug.

[0036] In addition, the electrical connector actually has a three-layer sealing effect, namely the first seal of the outer sealing ring 4, the second seal of the epoxy resin filling layer, and the third seal of the glass sintered layer 2 inside the housing, which makes the electrical connector have better sealing performance.

[0037] Preferably, the outer diameter of the shell 1 is 25.37±0.1mm, and the thickness of the glass sintered layer 2 is 6.0±0.2mm.

[0038] Preferably, the depth of the first welding hole 31 and the second welding hole 32 is 4.5±0.1mm, the diameter of the first welding hole 31 and the second welding hole 32 is 1.5±0.05mm, and the diameter of the first vent hole 311 and the second vent hole 321 is 0.6±0.02mm.

[0039] Preferably, multiple conductive needles 3 penetrate the glass sintered layer 2 at a spacing of 4.0±0.1mm.

[0040] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass-sintered electrical connector, characterized in that, include: The housing is cylindrical and made of stainless steel, wherein a receiving through hole is provided inside the housing along its length. A glass sintered layer is disposed at the center of the receiving through hole in the housing to divide the receiving through hole into a first receiving groove and a second receiving groove that are not connected. Multiple conductive needles are spaced apart and penetrate the glass sintered layer, wherein one end of each conductive needle is housed in the first receiving groove and is used for electrical connection with a first wire, and the other end of each conductive needle is housed in the second receiving groove and is used for electrical connection with a second wire. A first filling layer is disposed within the first receiving groove; The second filling layer is disposed within the second receiving groove.

2. The glass sintered electrical connector according to claim 1, characterized in that, The conductive needle is a solid body, wherein one end of the conductive needle has a first welding hole along its length direction, and the other end of the conductive needle has a second welding hole along its length direction.

3. The glass sintered electrical connector according to claim 2, characterized in that, The conductive needle has a first vent hole on one side wall that communicates with the first welding hole, and a second vent hole on the other side wall that communicates with the second welding hole.

4. The glass sintered electrical connector according to claim 2, characterized in that, The length of one end of the conductive needle exposed in the first receiving groove is less than the depth of the first receiving groove, and the length of the other end of the conductive needle exposed in the second receiving groove is less than the depth of the second receiving groove.

5. The glass sintered electrical connector according to claim 1, characterized in that, Both the first filler layer and the second filler layer are epoxy resin layers.

6. The glass sintered electrical connector according to claim 5, characterized in that, The first filling layer is flush with the end face of the first receiving groove, and the second filling layer is flush with the end face of the second receiving groove.

7. The glass sintered electrical connector according to claim 1, characterized in that, The outer sidewall of the housing is provided with a first annular groove and a second annular groove at intervals, wherein a first fluororubber sealing ring is provided in the first annular groove and a second fluororubber sealing ring is provided in the second annular groove.

8. The glass sintered electrical connector according to claim 1, characterized in that, The outer diameter of the shell is 25.37±0.1mm, and the thickness of the glass sintered layer is 6.0±0.2mm.

9. The glass sintered electrical connector according to claim 3, characterized in that, The depth of the first welding hole and the second welding hole is 4.5±0.1mm, the diameter of the first welding hole and the second welding hole is 1.5±0.05mm, and the diameter of the first vent hole and the second vent hole is 0.6±0.02mm.

10. The glass sintered electrical connector according to claim 1, characterized in that, Multiple conductive needles are inserted into the glass sintered layer at a spacing of 4.0±0.1mm.

Images