CN210723519U - High-temperature-resistant, oxidation-resistant and high-insulation connector - Google Patents
High-temperature-resistant, oxidation-resistant and high-insulation connector Download PDFInfo
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- CN210723519U CN210723519U CN201921459700.1U CN201921459700U CN210723519U CN 210723519 U CN210723519 U CN 210723519U CN 201921459700 U CN201921459700 U CN 201921459700U CN 210723519 U CN210723519 U CN 210723519U
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Abstract
The utility model relates to a high-temperature resistant, oxidation resistant and high-insulation connector, which comprises a first connector, a shielding wire, a second connector, a signal cable and a cold end, wherein the first connector comprises a connector shell and a contact pin; the connector shell and the contact pin of the first connector are a high-temperature alloy connector shell and a high-temperature alloy contact pin; the signal cable is a high-temperature-resistant armored signal cable; the tail part of the contact pin is provided with a blind hole, and the head part of the contact pin is of an n-equal-part cutting necking structure; one end of an inner conductor of the high-temperature-resistant armored signal cable is inserted into the blind hole at the tail part of the contact pin and is clamped tightly by the hole wall of the blind hole, meanwhile, the part of the inner conductor inserted into the blind hole is welded with the hole wall of the blind hole, the other end of the inner conductor is welded with the shielding lead, the outer pipe of the inner conductor is welded with the cold end, and the welding point of the inner conductor and the shielding lead is fixed in the cold end. The utility model discloses a connector service temperature range is-273 ℃ -1000 ℃, has good oxidation resistance and mechanical properties and can transmit signals steadily at high temperature.
Description
Technical Field
The utility model belongs to the technical field of the connector, a connector is related to, in particular to high temperature resistant anti-oxidant high-insulation connector.
Background
The connector is widely applied to various electronic instruments and electronic equipment of a sealed container in the fields of biology, medicine, chemical engineering, petroleum exploration, aerospace, national defense and the like, is a device for connecting two active devices, and can transmit current or signals. The shell material of the common connector is plastic such as PET, PA, PPS, LCP, PPA, ABS and the like, the material of the contact pin is brass, nickel tinning and the like, and the service temperature of the connector does not exceed 200 ℃. At present, the shell of the existing connector with higher temperature resistance is made of stainless steel, a contact pin is made of kovar alloy, and a glass packaging process is adopted, but the use temperature is not more than 500 ℃.
Patent CN202434740U discloses a high temperature connector, which adopts a stainless steel protective sleeve, the sleeve is provided with an insulating teflon layer, and the connector can normally work at 260 ℃; patent CN108321643A discloses a high-temperature irradiation resistant double coaxial connector, connectionThe insulating ceramic wrapping pin in the center of the base can realize the irradiation of 1 multiplied by 10 magnitude at the high temperature of 300 DEG C6The connection is reliable for a long time in the GY environment; although the connectors of the two patents can be used at a certain temperature, the high temperature resistance is poor, and the application in some higher temperature occasions cannot be met; patent CN103280677A discloses an ultrahigh temperature resistant nonpolar radio frequency coaxial electric connector, wherein a plug spring, a ferrule and a socket spring of the coaxial electric connector all adopt nickel-based high temperature alloy GH145, and inner conductors and outer shells of a radio frequency connector plug and a radio frequency connector socket and 7070 glass are supported and fixed in an integrated sintering manner, so that the coaxial electric connector can resist the high temperature of 650 ℃.
It can be seen that the maximum service temperature of the prior art connector is 650 ℃, but the connector is required to endure the high temperature of 800 ℃ for a long time and stably transmit signals in special occasions.
Therefore, the research on the high-temperature-resistant, oxidation-resistant and high-insulation connector is of great significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the connector can not resist the high temperature of 800 ℃ for a long time in the prior art, and providing a high-temperature-resistant, anti-oxidation and high-insulation connector.
In order to achieve the above purpose, the utility model adopts the following scheme:
a high-temperature-resistant, oxidation-resistant and high-insulation connector comprises a first connector, a shielding wire and a second connector, wherein the first connector comprises a connector shell, a contact pin, a signal cable and a cold end;
the connector shell and the contact pin of the first connector are a high-temperature alloy connector shell and a high-temperature alloy contact pin; the signal cable is a high-temperature-resistant armored signal cable;
the tail part of the contact pin is provided with a blind hole, the head part is of an n-equal-part cutting necking structure, namely, the head part is cut into n equal parts along the length direction and then is processed into a cone shape in a diameter reducing mode, and n is 3 or 4;
one end of an inner conductor of the high-temperature-resistant armored signal cable is inserted into the blind hole at the tail part of the contact pin and is clamped by the hole wall of the blind hole, meanwhile, the part of the inner conductor inserted into the blind hole is welded with the hole wall of the blind hole, and the other end of the inner conductor is welded with the shielding lead; the outer pipe of the high-temperature-resistant armored signal cable is welded with the cold end; the welding point of the inner conductor of the high-temperature resistant armored signal cable and the shielding lead is fixed in the cold end through sealant.
The utility model discloses a connector has good high temperature resistance ability, and the main reason is because:
(1) the signal cable is structurally added, the signal cable is a high-temperature-resistant armored signal cable, an outer pipe of the signal cable adopts high-temperature-resistant alloy and can work at the temperature of 800-1000 ℃ for a long time, an insulator of the signal cable, namely mineral insulating material, can work at the temperature of 1000 ℃ for a long time, and an inner conductor of the signal cable adopts pure nickel or high-temperature alloy and can work at the temperature of 800-1000 ℃ for a long time;
(2) the cold end is structurally added, and a transition area is provided for a high-temperature area and a low-temperature area;
(3) the connector shell and the contact pin of the first connector are a high-temperature alloy connector shell and a high-temperature alloy contact pin;
(4) the head of the contact pin is of a three-equal-part or four-equal-part cutting necking structure, the structure is convenient to insert, due to the necking, the size of the necking is tightly matched with a male plug to be inserted, and certain elastic pressure (also called elasticity) is provided, so that each inserted male plug has holding pressure (elasticity), and the contact performance at high temperature can be improved;
(5) the afterbody of contact pin is equipped with the blind hole, in the blind hole of contact pin afterbody was inserted to high temperature resistant armor signal cable's inner conductor one end, it is tight by the pore wall of blind hole clamp, the inner conductor inserts the partial and the pore wall welding of blind hole in the blind hole simultaneously, signal cable's inner conductor has adopted centre gripping + welded connected mode with the contact pin promptly, for single welded mode, the stability, durability and the reliability of connector can be improved to centre gripping + welded connected mode, the leading cause is: a) the clamping and welding enable the welding point to be bent in a small amplitude, the contact area between the inner conductor of the signal cable and the contact pin at the welding point is increased, the inner conductor of the signal cable and the contact pin are guaranteed to be in a contact state all the time and are not changed along with high temperature and high-frequency vibration; b) the clamping and welding weaken the strain capacity of the inner conductors and the contact pins of the signal cables made of different materials, and the possibility of falling off of the signal cables due to unbalanced stress is reduced; c) the fixed points are increased by clamping and welding, the fixed points only refer to welding points before the clamping structure is added, and the fixed points also comprise the contact points of the hole walls of the blind holes and the inner conductors of the signal cables and the welding points after the clamping structure is added, so that the connection strength is enhanced by the addition of the fixed points; d) the clamping and welding have a certain fixing effect on the inner conductor of the signal cable, the moving capacity of the signal cable under the action of high-temperature and high-frequency vibration is weakened, the adverse effect of the moving butt welding joint structure is reduced, the direct impact of the high-temperature and high-frequency vibration on a welding spot is relieved to a certain extent, the fatigue of the connector under the expansion and contraction of high and low temperatures is delayed, and the vibration resistance is improved.
As a preferable scheme:
according to the high-insulation connector with high temperature resistance, oxidation resistance and high temperature resistance, the gold plating layer is arranged on the surface of the contact pin of the first connector, so that the connector has good oxidation resistance and can resist very high temperature.
The high-temperature-resistant oxidation-resistant high-insulation connector mainly comprises an outer shell, a nut, a ceramic piece I, a ceramic piece II and a pin (the pin is made of Inconel600, Inconel601, Inconel625, Inconel718, GH747 or 310S), wherein the ceramic piece I, the ceramic piece II and the pin are located inside the outer shell, the ceramic piece I and the ceramic piece II are excellent in insulation performance at high temperature, the insulation resistance is larger than 20M omega at 800 ℃, the transmission signal is stable, the interference is small, the outer shell is formed by sequentially laser welding a connector shell (the connector shell is made of Inconel600, Inconel601, Inconel625, Inconel718, GH747 and 310S), a cold end sleeve and a cold end sleeve, the ceramic piece I is filled inside the connector shell, the ceramic piece II is filled at the joint of the connector shell and the cold end sleeve, the number of the pin is 1-24, the pin penetrates through the ceramic piece II and is inserted into the ceramic piece I, and the nut is sleeved on the cold end sleeve.
The high-temperature-resistant oxidation-resistant high-insulation connector is characterized in that the high-temperature-resistant armored signal cable mainly comprises an outer pipe (the outer pipe is made of Inconel600, Inconel601, Inconel625, Inconel718, GH747 or 310S), an inner conductor (the inner conductor is made of oxygen-free copper, nickel, Inconel600, Inconel601, platinum wire and the like) and an insulator (the insulator is made of more than one of magnesium oxide, aluminum oxide, boron nitride, silicon oxide and zirconium oxide), wherein the inner conductor penetrates through the outer pipe, and the insulator is filled between the outer pipe and the inner conductor; the outer pipe is a seamless metal pipe, the shielding performance is good, the anti-interference capability is strong, the dielectric constant of the insulator is about 1.6, and the energy loss during signal transmission is low.
According to the high-insulation connector resistant to high temperature and oxidation, the number of the inner conductors is 1-24, and when the number of the inner conductors is larger than 1, the inner conductors are parallel or twisted in pairs.
According to the high-insulation connector with high temperature resistance, oxidation resistance and high insulation, the number of the inner conductors is 2, namely, the high-temperature-resistant armored signal cable is of a two-core structure, one core is a communication signal, and the other core is connected with the shell and the shielding layer, so that the shielding effect is better, and the external signal interference can be resisted.
According to the high-insulation connector with high temperature resistance, oxidation resistance and high temperature resistance, one end of the outer tube of the high-temperature-resistant armored signal cable is inserted into the cold end sleeve of the first connector, and the other end of the outer tube of the high-temperature-resistant armored signal cable is inserted into the cold end sleeve.
According to the high-insulation connector with high temperature resistance, oxidation resistance and high temperature resistance, the shielding lead is welded with the second connector.
The high-temperature-resistant oxidation-resistant high-insulation connector is characterized in that the second connector is a coaxial connector.
Has the advantages that:
(1) the utility model discloses a high temperature resistant anti-oxidation high insulation connector, the service temperature range is-273 ℃ -1000 ℃, and the connector has good anti-oxidation and mechanical properties at high temperature;
(2) the utility model discloses a high temperature resistant anti-oxidant high-insulation connector, contact pin are the superalloy material, and the surface is gilded and is handled, has good oxidation resistance and mechanical properties under high temperature, guarantees good electrical contact performance;
(3) the high-temperature-resistant, oxidation-resistant and high-insulation connector has good insulation property, the insulation resistance is greater than 10G omega.m at normal temperature, and the insulation resistance is greater than 10M omega.m at 800 ℃;
(4) the utility model discloses a high temperature resistant anti-oxidant high-insulation connector, contain high temperature resistant armor signal cable, adopt armor pair twist signal cable, can resist some electromagnetic wave interference from the external world, also can reduce the mutual interference between the many pairs of stranded conductor; the twisted pair wire has the function of equalizing the noise (in the professional field, the useless signal is called noise) generated by the external interference on the two wires, so that the useful signal is extracted by the subsequent differential circuit, the differential circuit is a subtraction circuit, the signals (common mode signals) with the same phase at the two input ends are mutually cancelled (m-n), and the signals with the opposite phase are equivalent to x- (-y), so that the useful signal is enhanced. Theoretically, m is n, x is y in the twisted pair and the differential circuit, which means that the interference signal is completely eliminated and the useful signal is doubled;
(5) the utility model discloses a high insulating connector of high temperature resistant anti-oxidant, one or two kinds among magnesium oxide, aluminium oxide, boron nitride, silicon oxide and the zirconia are chooseed for use to high temperature resistant armor signal cable's insulating material, form an insulator that has reasonable dielectric constant to make the cable have impedance characteristic, accord with transmission signal's requirement.
Drawings
Fig. 1 is a schematic view of a high-temperature-resistant, oxidation-resistant, and high-insulation connector according to the present invention;
fig. 2 is a schematic diagram of the connection between the signal cable and the first connector according to the present invention;
fig. 3 is a schematic diagram of the connection of the signal cable, the cold end and the shielding wire of the present invention;
fig. 4 is a schematic view of the connection of the armored twisted pair signal cable with the first connector according to the present invention;
fig. 5 is a schematic structural view of the contact pin of the present invention;
the connector comprises a first connector 1, a connector shell 1.1, a ceramic part I1.2, a ceramic part II 1.3, a pin 1.4, a tail 1.4.1, a head 1.4.2, a nut 1.5, a cold end sleeve 1.6, a cold end sleeve 1.7, a signal cable 2, an outer tube 2.1, an inner conductor 2.2, an insulator 2.3, a cold end 3, a shielding wire 4, a second connector 5, a sealant 6 and a welding point 7.
Detailed Description
The present invention will be further described with reference to the following detailed description. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
A high-temperature-resistant oxidation-resistant high-insulation connector is shown in figure 1 and comprises a first connector 1, a signal cable 2, a cold end 3, a shielding lead 4 and a second connector 5; the first connector 1 comprises an outer shell, a nut 1.5, a ceramic piece I1.2, a ceramic piece II 1.3 and a contact pin 1.4, wherein the ceramic piece I1.2, the ceramic piece II 1.3 and a cold end sleeve 1.7 are sequentially welded in a laser mode, the outer shell is formed by welding the connector shell 1.1, the cold end sleeve 1.6 and the cold end sleeve 1.7 in a laser mode, the connector shell 1.1 is a high-temperature alloy connector shell, the ceramic piece I1.2 is filled in the connector shell 1.1, the ceramic piece II 1.3 is filled in the joint of the connector shell 1.1 and the cold end sleeve 1.6, the nut 1.5 is sleeved on the cold end sleeve 1.6, the contact pin 1.4 is a high-temperature alloy contact pin and contains a gold surface coating, the number of the contact pins 1.4 is 1-24, the contact pins penetrate through the ceramic piece II 1.3 and are inserted into the ceramic piece I1.2, as shown in figure 5, the tail portion 1.4.1.; the second connector 5 is a coaxial connector, and the shielding lead 4 is welded with the second connector 5; the signal cable 2 is a high-temperature-resistant armored signal cable, as shown in fig. 2, the signal cable mainly comprises an outer tube 2.1, inner conductors 2.2 and insulators 2.3, the number of the inner conductors is 1-24, when the number of the inner conductors is greater than 1, a plurality of inner conductors are parallel to each other or are twisted in pairs, fig. 4 is a schematic diagram that 2 inner conductors 2.2 are connected in a twisted-pair manner, one end of each inner conductor 2.2 is inserted into a blind hole of a tail portion 1.4.1 of a contact pin 1.4 and is clamped by a hole wall of the blind hole, meanwhile, a part of each inner conductor 2.2 inserted into the blind hole is welded with the hole wall of the blind hole, the other end of each inner conductor is welded with a shielding lead 4, a welding point 7 is fixed in the cold end 3 through a sealant 6, the inner conductors 2.2 pass through the outer tube 2.1, as shown in fig. 3, one end of the outer tube 2.1 is inserted into a cold end sleeve 1.7 of a first connector 1, the other.
Claims (9)
1. The utility model provides a high insulating connector of high temperature resistant anti-oxidant high, includes first connector, shielded wire and second connector, and first connector includes connector housing and contact pin, characterized by: the system also comprises a signal cable and a cold end;
the connector shell and the contact pin of the first connector are a high-temperature alloy connector shell and a high-temperature alloy contact pin; the signal cable is a high-temperature-resistant armored signal cable;
the tail part of the contact pin is provided with a blind hole, the head part is of an n-equal-part cutting necking structure, namely, the head part is cut into n equal parts along the length direction and then is processed into a cone shape in a diameter reducing mode, and n is 3 or 4;
one end of an inner conductor of the high-temperature-resistant armored signal cable is inserted into the blind hole at the tail part of the contact pin and is clamped by the hole wall of the blind hole, meanwhile, the part of the inner conductor inserted into the blind hole is welded with the hole wall of the blind hole, and the other end of the inner conductor is welded with the shielding lead; the outer pipe of the high-temperature-resistant armored signal cable is welded with the cold end; the welding point of the inner conductor of the high-temperature resistant armored signal cable and the shielding lead is fixed in the cold end through sealant.
2. The high temperature resistant, oxidation resistant and high insulation connector as claimed in claim 1, wherein the surface of the pin of the first connector comprises gold plating.
3. The high-temperature-resistant, oxidation-resistant and high-insulation connector according to claim 1, wherein the first connector mainly comprises an outer shell, a nut, a ceramic piece I, a ceramic piece II and a contact pin, wherein the ceramic piece I, the ceramic piece II and the contact pin are located inside the outer shell, the outer shell is formed by sequentially laser welding a connector shell, a cold-end sleeve and the cold-end sleeve, the ceramic piece I is filled inside the connector shell, the ceramic piece II is filled at the joint of the connector shell and the cold-end sleeve, the contact pin is 1-24 in number and penetrates through the ceramic piece II to be inserted into the ceramic piece I, and the nut is sleeved on the cold-end sleeve.
4. The high temperature resistant, oxidation resistant and high insulation connector as claimed in claim 3, wherein the high temperature resistant armored signal cable is mainly composed of an outer tube, an inner conductor and an insulator, the inner conductor passes through the outer tube, and the insulator is filled between the outer tube and the inner conductor.
5. The high-temperature-resistant, oxidation-resistant and high-insulation connector as claimed in claim 4, wherein the number of the inner conductors is 1-24, and when the number of the inner conductors is greater than 1, the inner conductors are parallel or twisted with each other.
6. The high temperature resistant, oxidation resistant and high insulation connector as claimed in claim 5, wherein the number of inner conductors is 2.
7. The high-temperature-resistant, oxidation-resistant and high-insulation connector according to claim 4, wherein one end of the outer tube of the high-temperature-resistant armored signal cable is inserted into the cold end sleeve of the first connector, and the other end of the outer tube is inserted into the cold end.
8. The high temperature resistant, oxidation resistant and high insulation connector as claimed in claim 1, wherein the shield wire is soldered to the second connector.
9. The high temperature resistant, oxidation resistant and high insulation connector as claimed in claim 1, wherein the second connector is a coaxial connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459700.1U CN210723519U (en) | 2019-09-04 | 2019-09-04 | High-temperature-resistant, oxidation-resistant and high-insulation connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459700.1U CN210723519U (en) | 2019-09-04 | 2019-09-04 | High-temperature-resistant, oxidation-resistant and high-insulation connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210723519U true CN210723519U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921459700.1U Active CN210723519U (en) | 2019-09-04 | 2019-09-04 | High-temperature-resistant, oxidation-resistant and high-insulation connector |
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| Country | Link |
|---|---|
| CN (1) | CN210723519U (en) |
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- 2019-09-04 CN CN201921459700.1U patent/CN210723519U/en active Active
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