CN208873671U - A kind of welded type exit of sealed relay - Google Patents
A kind of welded type exit of sealed relay Download PDFInfo
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- CN208873671U CN208873671U CN201821834841.2U CN201821834841U CN208873671U CN 208873671 U CN208873671 U CN 208873671U CN 201821834841 U CN201821834841 U CN 201821834841U CN 208873671 U CN208873671 U CN 208873671U
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- sleeve
- core bar
- exit
- inner end
- relay
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Abstract
The utility model discloses a kind of welded type exit of sealed relay, is made of sleeve and core bar；Sleeve is made of kovar alloy material, and is in hollow column construction；It is through-hole that the outboard end of sleeve, which is installed on relay base lateral ends, and it is through-hole or blind hole that the inner end of sleeve, which is installed on relay base inner opposite end,；Core bar is made of metal material, and is in solid column structure；Core bar is threaded through in sleeve, and there are certain gaps between the two；One end at least within of core bar and sleeve is welded together in gap location by solder.The utility model can be under the premise of meeting outer dimension requirement, realize good conductive, heating conduction, it avoids general copper core that from can cutting down material exit simultaneously and easily leads to the cracked problem of seal glass, and it can be according to the design needs, ratio shared by copper core is adjusted, improves its conductive, heating conduction to greatest extent.
Description
Technical field
The utility model relates to relay technical fields, and in particular to a kind of welded type exit of sealed relay.
Background technique
Exit is the electrical interface component of hermetically sealed electromagnetic relay, is both the important composition portion of relay interior contact system
Part and external wiring terminal, main function is that load current is connected, exports contact arc heat, structure in relay
With performance is thermally conductive to relay, conductive and sealing performance has large effect.On the one hand, water conservancy diversion of the exit as contact system
Component, due to forming pressure drop from body resistance and leading to resistance heat, load current is bigger, and pressure drop and fever phenomenon are more obvious；Separately
On the one hand, conducting-heat elements of the exit as contact system, contact system arc heat, resistance heat need to conduct by exit to
Outside relay, exit heating conduction has larger impact to reduction contact temperature, raising relay reliability.
Mainly pass through increasing exit to solve the fever of power-type sealed relay exit and heat conduction problem, conventional approach
Structure size obtains bigger conductive and heat-conductive sectional area or can cut down exit using copper core, with reduce exit bulk resistor,
Improve heating conduction.But the hermetically sealed electromagnetic relay for much meeting professional standard has the size and shape of volume, exit
It is distinctly claimed, therefore is limited by relay overall dimension, weight, the exit size increase of these sealed relays suffers from
Larger limitation.When exit can cut down material using copper core, due to the thermal expansion coefficient of copper and the difference of seal glass thermal expansion coefficient
It is different larger, it easily leads to insulator and splits, influence the sealing performance of relay, be not able to satisfy leakproofness as defined in sealed relay standard
≤ 10-3Pa.cm3/s requirement.
Utility model content
To be solved in the utility model is that the exit of existing relay can not meet leakproofness and small size simultaneously
It is required that the problem of, a kind of welded type exit of sealed relay is provided.
To solve the above problems, the utility model is achieved through the following technical solutions:
A kind of welded type exit of sealed relay, including exit ontology, characterized in that the exit ontology
Mainly it is made of sleeve and core bar；Sleeve is made of kovar alloy material, and is in hollow column construction；The outboard end of sleeve
Being installed on relay base lateral ends is through-hole, and it is through-hole that the inner end of sleeve, which is installed on relay base inner opposite end,
Or blind hole；Core bar is made of metal material, and is in solid column structure；Core bar is threaded through in sleeve, and is stayed between the two
There is certain gap；One end at least within of core bar and sleeve is welded together in gap location by solder, realizes core bar and set
The electrical communication of cylinder.
In above scheme, sleeve and core bar are cylindric.
In above scheme, the central axes of sleeve and the central axes of core bar are overlapped.
In above scheme, the width in gap is between 0.01mm~1mm.
In above scheme, when the inner end of sleeve is through-hole, the inner end of the end face and sleeve of the inner end of core bar
End face is equal or is longer than the end face of the inner end of sleeve.
In above scheme, when the inner end of sleeve is blind hole, the inner end of sleeve offers internal screw thread, the inside of core bar
End accordingly offers the external screw thread being meshed therewith.
Compared with prior art, the utility model has the following characteristics:
1, exit uses sleeve and core bar welded structure.Sleeve and core bar both ends use welding form to form the two
Whole, material and seal glass matched coefficients of thermal expansion, copper excellent conductive heating conduction can be cut down by taking full advantage of；
2, gap is devised between exit sleeve and core bar, stem material thermal expansion is avoided to squeeze glass, pull to be formed
Crackle keeps sealed relay sealing-in more reliable；
3, ratio shared by core bar can be adjusted according to the design needs, to improve its conductive, heating conduction to greatest extent.
Detailed description of the invention
Fig. 1 is the scheme of installation of the welded type exit of sealed relay.
Fig. 2 a~2c is section view of 3 kinds of outsides using the welded type exit of the sealed relay of screw rod connection type
Figure.
Fig. 3 a~3c is section view of 3 kinds of outsides using the welded type exit of the sealed relay of welding connecting mode
Figure.
Fig. 4 a~4c is leading-off rods and sealed relay interior contact system connection schematic diagram.
Figure label: 1-1, sleeve；1-2, core bar；1-3, gap；1-4, solder；2, relay base；3, seal glass；
4, flow deflector.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific example, and join
According to attached drawing, the utility model is further described.It should be noted that the direction term mentioned in example, such as "upper",
"lower", " in ", " left side " " right side ", "front", "rear" etc., be only the direction with reference to attached drawing.Therefore, the direction used is intended merely to illustrate
Not it is used to limit the protection scope of the utility model.
Referring to Fig. 1, a kind of welded type exit of sealed relay wears and is mounted on relay base 2, and leads to
It crosses seal glass 3 and realizes sealing.The inner end of the exit ontology and relay interior contact system electrical communication, the exit
The outboard end of ontology forms external wiring terminal, with external circuit electrical communication.Above-mentioned exit ontology mainly by sleeve 1-1 and
Core bar 1-2 composition.Sleeve 1-1 is made of the kovar alloy material close with the 2 seal, sealing materials coefficient of expansion of relay base, such as
Expansion alloy；Core bar 1-2 is made of conductive and heating conduction superior metal material, such as oxygen-free copper, brass, silver alloy, copper-based
Solder, silver-base solder or gold copper etc..Sleeve 1-1 and core bar 1-2 is made of different materials, and the two has different expansions
Coefficient and electrical and thermal conductivity performance can either guarantee sealing performance in this way, and can guarantee conductive and heating conduction.Wherein Fig. 2 a~
2c is cross-sectional view of 3 kinds of outsides using the welded type exit of the sealed relay of screw rod connection type, and Fig. 3 a~3c is 3 kinds
Outside uses the cross-sectional view of the welded type exit of the sealed relay of welding connecting mode.
Sleeve 1-1 and core bar 1-2 uses nesting type structure, and middle sleeve 1-1 is hollow cylindricality, and core bar 1-2 is solid
Column, core bar 1-2 is nested in the inside of sleeve 1-1, and there are certain gap 1-3 between both.In the present invention,
The shape of sleeve 1-1 and core bar 1-2 match, but as long as the internal diameter for meeting sleeve 1-1 is greater than the outer diameter of core bar 1-2, and allow two
There are gap 1-3 by person.On implementation, can be sleeve 1-1 and core bar 1-2 is all polygonal column；It can be set
Cylinder 1-1 and core bar 1-2 is cylindric；Being also possible to sleeve 1-1 is polygonal column, and sleeve 1-1 is cylindric；It can also be with
Be sleeve 1-1 be it is cylindric, sleeve 1-1 be polygonal column.In view of cylindrical relative smooth in radial directions, sleeve
Gap 1-3 between 1-1 and core bar 1-2 is easily controllable, and in the preferred embodiment in the utility model, sleeve 1-1 and core bar 1-2 are
To be cylindric, i.e. sleeve 1-1 is hollow cylinder, and outer diameter is Φ 5mm, internal diameter is Φ 3.1mm；Core bar 1-2 is solid
Cylindric, outer diameter is 3 mm of Φ, and the two gap 1-3 is 0.1mm.In order to the gap allowed between sleeve 1-1 and core bar 1-2
1-3 is kept once in radial directions, and the central axes of sleeve 1-1 and core bar 1-2 are overlapped, to guarantee that leading-off rods performance is stablized.Separately
Outside, it is contemplated that the excessive size that will increase leading-off rods of the gap 1-3 of sleeve 1-1 and core bar 1-2, and gap 1-3 is too small will cause
The problem of reserved expansion space deficiency, in the present invention, the width of gap 1-3 should control between 0.01mm~1mm.
In order to allow sleeve 1-1 and core bar 1-2 to form an entirety, one end at least within of core bar 1-2 and sleeve 1-1
Welded together at the 1-3 of gap by solder 1-4, to guarantee stable connection and the two between core bar 1-2 and sleeve 1-1
Between electrical communication.In the selection of pad, need to make corresponding variation, welding position according to the shape of sleeve 1-1
It must avoid the sealing-in position of leading-off rods and bottom plate: be logical when the outboard end of sleeve 1-1 is installed on 2 lateral ends of relay base
Hole, the inner end of sleeve 1-1 is installed on 2 inner opposite end of relay base when being through-hole, pad be located at simultaneously sleeve 1-1 with
On the end face of the outboard end of core bar 1-2 and the end face of inner end, such as Fig. 2 a, 2b, 3a and 3b；When the outboard end of sleeve 1-1 is
Being installed on 2 lateral ends of relay base is through-hole, and the inner end of sleeve 1-1 is installed on 2 inner opposite end of relay base and is
When blind hole, pad is only located on the end face of the outboard end of sleeve 1-1 and core bar 1-2, such as Fig. 2 c and 3c.In the choosing of welding manner
It selects, can be realized using soldering, Laser Welding or other welding methods.
When the outboard end of sleeve 1-1 and inner end are through-hole, the end face of the inner end of core bar 1-2 can be with sleeve 1-
The end face of 1 inner end is equal, referring to fig. 2 a and 3a；The end face of the inner end of sleeve 1-1 can also be longer than, referring to fig. 2 b and
3b, to adapt to the connection type of different contact systems.When the outboard end of sleeve 1-1 is through-hole, and inner end is blind hole, set
The inner end of cylinder 1-1 offers internal screw thread, and the inner end of core bar 1-2 accordingly offers the external screw thread being meshed therewith, referring to
Fig. 2 c and 3c, to guarantee to further increase the stability of sleeve 1-1 and core bar 1-2.
When leading-off rods is installed to relay base 2, can be realized by following 3 kinds of modes in exit and relay
The connection of portion's contact system: one is the insides for the core bar 1-2 that the flow deflector 4 of contact system is installed to exit by nut
On the end at end, a referring to fig. 4；One is the flow deflector 4 of contact system is welded direct on the outside of sleeve 1-1 of exit,
B referring to fig. 4；One is on the end of the inner end for the core bar 1-2 that the flow deflector 4 of contact system is riveted to exit, referring to figure
4c。
The utility model is realized under the premise of meeting outer dimension requirement using core bar 1-2 and sleeve 1-1 welding structure
Good conductive, heating conduction, while avoiding general copper core that from can cutting down material exit and easily leading to that seal glass 3 is cracked to ask
Topic, and ratio shared by copper core can be adjusted according to the design needs, its conductive, heating conduction is improved to greatest extent.
It should be noted that although the above embodiment described in the utility model be it is illustrative, this is not to this
The limitation of utility model, therefore the utility model is not limited in above-mentioned specific embodiment.The utility model is not being departed from
In the case where principle, the other embodiment that all those skilled in the art obtain under the enlightenment of the utility model is accordingly to be regarded as
Within the protection of the utility model.
Claims (6)
1. a kind of welded type exit of sealed relay, including exit ontology, characterized in that the exit ontology master
It to be made of sleeve (1-1) and core bar (1-2)；Sleeve (1-1) is made of kovar alloy material, and is in hollow cylindricality knot
Structure；It is through-hole that the outboard end of sleeve (1-1), which is installed on relay base (2) lateral ends, and the inner end of sleeve (1-1) is pacified
It is through-hole or blind hole loaded on relay base (2) inner opposite end；Core bar (1-2) is made of metal material, and is in solid column
Shape structure；Core bar (1-2) is threaded through in sleeve (1-1), and there are gap (1-3) between the two；Core bar (1-2) and sleeve (1-
1) one end at least within is welded together at gap (1-3) by solder (1-4), realizes core bar (1-2) and sleeve (1-1)
Electrical communication.
2. a kind of welded type exit of sealed relay according to claim 1, characterized in that sleeve (1-1) and
Core bar (1-2) is cylindric.
3. according to claim 1 or a kind of welded type exit of sealed relay, feature described in any one of 2
It is that the central axes of sleeve (1-1) and the central axes of core bar (1-2) are overlapped.
4. a kind of welded type exit of sealed relay according to claim 1, characterized in that gap (1-3's)
Width is between 0.01mm~1mm.
5. a kind of welded type exit of sealed relay according to claim 1, characterized in that as sleeve (1-1)
Inner end be through-hole when, the end face of the inner end of core bar (1-2) is equal with the end face of inner end of sleeve (1-1) or is longer than set
The end face of the inner end of cylinder (1-1).
6. a kind of welded type exit of sealed relay according to claim 1, characterized in that as sleeve (1-1)
Inner end be blind hole when, the inner end of sleeve (1-1) offers internal screw thread, and the inner end of core bar (1-2) accordingly offers
The external screw thread being meshed therewith.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821834841.2U CN208873671U (en) | 2018-11-08 | 2018-11-08 | A kind of welded type exit of sealed relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821834841.2U CN208873671U (en) | 2018-11-08 | 2018-11-08 | A kind of welded type exit of sealed relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873671U true CN208873671U (en) | 2019-05-17 |
Family
ID=66471346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821834841.2U Active CN208873671U (en) | 2018-11-08 | 2018-11-08 | A kind of welded type exit of sealed relay |
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| Country | Link |
|---|---|
| CN (1) | CN208873671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192614A (en) * | 2018-11-08 | 2019-01-11 | 桂林航天电子有限公司 | A kind of welded type exit of sealed relay |
-
2018
- 2018-11-08 CN CN201821834841.2U patent/CN208873671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192614A (en) * | 2018-11-08 | 2019-01-11 | 桂林航天电子有限公司 | A kind of welded type exit of sealed relay |
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