CN211604831U - High-strength ceramic wire-wound resistor - Google Patents
High-strength ceramic wire-wound resistor Download PDFInfo
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- CN211604831U CN211604831U CN201922487153.4U CN201922487153U CN211604831U CN 211604831 U CN211604831 U CN 211604831U CN 201922487153 U CN201922487153 U CN 201922487153U CN 211604831 U CN211604831 U CN 211604831U
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Abstract
The utility model discloses a high strength pottery wire winding resistor, including ceramic base pipe, resistance wire and two sets of bracket components, the ceramic base pipe includes that the longitudinal section is oval-shaped pipe body and is located two connecting portion at the both ends of pipe body, pipe body and connecting portion are all solid, the longitudinal section of connecting portion is the rectangle, pipe body and connecting portion are mutual integrated into one piece structure, resistance wire spiral winding is on the surface of pipe body, two sets of bracket components are fixed in two connecting portions respectively; each group of support assemblies comprises a stud, a nut and a support, the support is buckled at the end part of the connecting part, the connecting part and the support are mutually fixed through the stud and the nut, and the two end parts of the resistance wire are fixed on the studs at the corresponding ends of the ceramic base tube, so that the studs are also used as wiring ends. The intensity is high, and stability is high, and the transportation collision is difficult for breaking, and the difficult shattering of equipment vibrations is basic ceramic tube in the use.
Description
Technical Field
The utility model relates to a resistor technical field, concretely relates to dynamic braking return circuit's simulation load experiment suitable for converters such as heavy current braking equipment, experimental test equipment, jack-up, concretely relates to high strength pottery wire resistor.
Background
The winding resistor is mainly used for performing the functions of voltage reduction, shunt, load, feedback, energy conversion, matching and the like in a low-frequency alternating current circuit, or playing the functions of an absorber and a voltage divider in a power circuit, and can also be used as a shunt in an oscillation circuit and an attenuation adjustment and pulse forming circuit in a transformer. In addition, the method can also be used for discharging and extinguishing sparks of a capacitor of a filter stage in the rectifier. Meanwhile, the device can be widely applied to the fields of household appliances, medical equipment, automobile industry, railways, aviation, military equipment and instruments and the like.
The existing winding resistor generally comprises a hollow circular base tube, supports fixed at two ends of the base tube and a resistance wire spirally wound outside the base tube, the base tube is generally a ceramic tube made of ceramic, and a screw rod is arranged inside the ceramic tube in a penetrating mode to fix the supports. However, the specification of the winding resistor is various, and the screw rod with the corresponding specification needs to be customized according to the diameter and the length of the porcelain tube in actual production, so that the production cost is increased, and the assembly is inconvenient. And the screws are various in type and difficult to manage. In the existing wire-wound resistor, the base tube is required to be hollow due to the existence of the screw rod, and the screw rod can penetrate through the base tube. Circular hollow basepipes suffer from the following problems: in the aspect of stability, the transportation collision is easy to break, and the equipment is easy to shake and crack in the using process; in the aspect of the heat dissipation, the heat transmission of most of resistance wire is to the parent tube, and because the parent tube cavity, the entity that leads to the parent tube is small, and the heat that can absorb is limited, and heat dispersion is poor.
SUMMERY OF THE UTILITY MODEL
There is above-mentioned technical problem to prior art, the utility model provides a high strength pottery wire resistor can improve parent tube intensity and stability ability, and can improve the heat absorption performance.
In order to achieve the above object, the utility model provides a following technical scheme:
the high-strength ceramic wire-wound resistor comprises a ceramic base tube, a resistance wire and two groups of support assemblies, wherein the ceramic base tube comprises a tube body with an oval longitudinal section and two connecting parts positioned at two end parts of the tube body, the tube body and the connecting parts are solid, the longitudinal section of each connecting part is rectangular, the tube body and the connecting parts are of a mutually integrated structure, the resistance wire is spirally wound on the surface of the tube body, and the two groups of support assemblies are respectively fixed on the two connecting parts; each group of support assemblies comprise studs, nuts and supports, the supports are buckled at the end parts of the connecting parts, the connecting parts and the supports are mutually fixed through the studs combined with the nuts, the studs are arranged in a direction perpendicular to the length direction of the ceramic base pipe, and two end parts of the resistance wires are fixed on the studs at the corresponding ends of the ceramic base pipe, so that the studs are also used as wiring ends.
Specifically, each connecting part is provided with two transition holes perpendicular to the length direction of the ceramic base tube, and the stud penetrates through the support and the transition holes and then is sleeved with the nut, so that the connecting parts and the support are fixed with each other.
Specifically, a gasket is arranged between the nut and the support.
Specifically, the support includes upper bracket and lower carriage that are integrative stamping forming's U-shaped, the upper bracket with the lower carriage is detained respectively the upper end portion and the lower tip of connecting portion.
Specifically, the lower support frame is transversely extended with a support plate.
Specifically, the supporting plate is provided with a mounting hole.
Specifically, the outer side of the tube body is provided with a spirally arranged groove, and the resistance wire is embedded in the groove.
Specifically, the resistance wire and the groove are in interference fit.
The utility model has the advantages that:
the utility model discloses a high strength pottery wire resistor compares with prior art, has following advantage:
1. the supports at the two ends of the ceramic base pipe are mutually fixed through independent stud nuts, the traditional screw rods penetrating through the base pipe are not needed, the base pipes with different specifications are not needed to be provided with screw rods with corresponding lengths, and the base pipes are fixed by using the stud nuts with the same specification, so that the management is convenient;
2. the pipe body and the connecting part are solid, the longitudinal section of the pipe body is oval, the strength is high, the stability is high, the pipe body is not easy to break in transportation collision, and the ceramic base pipe is not easy to crack due to vibration of equipment in the using process; the ceramic base tube has large solid volume, can absorb larger heat and has better heat dissipation effect on the resistance wire;
3. the two end parts of the resistance wire are fixed on the studs at the corresponding ends of the ceramic base tube, so that the studs are used as wiring ends, the studs which are used as fixing properties are used as the wiring ends, the wiring ends are not required to be additionally arranged, the structure is more compact, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a high-strength ceramic wire-wound resistor in an embodiment.
Fig. 2 is an enlarged view at a in fig. 1.
Reference numerals:
the ceramic base tube comprises a ceramic base tube 1, a tube body 11 and a connecting part 12;
a resistance wire 2;
Detailed Description
The present invention will be described in detail with reference to the following embodiments and accompanying drawings.
The high strength pottery wire resistor of this embodiment, as shown in fig. 1 and fig. 2, including ceramic base pipe 1, resistance wire 2 and two sets of support 33 subassemblies 3, ceramic base pipe 1 includes that the longitudinal section is oval-shaped pipe body 11 and two connecting portion 12 that are located the both ends of pipe body 11, pipe body 11 and connecting portion 12 are all solid, the longitudinal section of connecting portion 12 is the rectangle, pipe body 11 and connecting portion 12 are mutual integrated into one piece structure, add the pottery of a tetragonal body man-hour, oval ceramic base pipe 1 that can the shaping this embodiment is ground into to its middle part. The resistance wire 2 is spirally wound on the surface of the tube body 11, and the two groups of support 33 assemblies 3 are respectively fixed on the two connecting parts 12. Each group of support 33 components 3 comprises a stud 31, a nut 32 and a support 33, the support 33 is buckled at the end part of the connecting part 12, the connecting part 12 and the support 33 are mutually fixed through the stud 31 and the nut 32, and the two end parts of the resistance wire 2 are fixed on the studs 31 at the corresponding ends of the ceramic base tube 1, so that the studs 31 are also used as terminals.
Compared with the prior art, the high-strength ceramic wire-wound resistor of the embodiment has the following advantages:
1. the supports 33 at the two ends of the ceramic base pipe 1 are mutually fixed through independent studs 31 and nuts 32, the traditional screw rods penetrating through the base pipe are not needed, the base pipes with different specifications do not need to be provided with screw rods with corresponding lengths, and the base pipes are fixed by using the studs 31 and nuts 32 with the same specification, so that the management is convenient;
2. the pipe body 11 and the connecting part 12 are solid, the longitudinal section of the pipe body 11 is oval, the strength is high, the stability is high, the pipe body is not easy to break in transportation collision, and the ceramic base pipe 1 is not easy to crack due to vibration of equipment in the using process; the ceramic base tube 1 has a large solid volume, can absorb larger heat and has better heat dissipation effect on the resistance wire 2;
3. the two end parts of the resistance wire 2 are fixed on the studs 31 at the corresponding ends of the ceramic base tube 1, so that the studs 31 are also used as wiring ends, the studs 31 which are originally fixed are also used as the wiring ends, the wiring ends do not need to be additionally arranged, the structure is more compact, and the manufacturing cost is reduced.
In this embodiment, each connecting portion 12 is formed with two transition holes perpendicular to the length direction of the ceramic base tube 1, the bracket 33 includes an upper bracket 331 and a lower bracket 332 which are both integrally stamped and formed into a U shape, the upper bracket 331 and the lower bracket 332 are respectively fastened to the upper end portion and the lower end portion of the connecting portion 12, and the upper bracket 331 and the lower bracket 332 are respectively formed with holes aligned with the transition holes at corresponding positions. The stud 31 passes through the hole of the bracket 33 and the transition hole and then is sleeved with the nut 32, so that the connecting part 12 and the bracket 33 are fixed with each other, and a gasket is arranged between the nut 32 and the bracket 33. In practice, of course, if the connecting portion 12 is not provided with a transition hole, the screw rod passes through the U-shaped bracket 33, and the bracket 33 is only pressed by the nut 32, so that the opening of the bracket 33 is reduced, and the clamping connection can be achieved.
In this embodiment, the lower bracket 332 is laterally extended with a support plate 333, and the support plate 333 is provided with a mounting hole 3331 for connecting the entire resistor with a peripheral user.
In this embodiment, the outside of pipe body 11 is provided with the groove of spiral arrangement, and resistance wire 2 inlays at the inslot, interference fit between resistance wire 2 and the groove can avoid the actuation of 2 different sections of resistance wire under the heavy current effect, improves the stability ability of 2 use of resistance wire, has increased the area of contact of resistance wire 2 with ceramic parent tube 1 moreover, has further improved the heat conduction radiating effect of resistance wire 2.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. A high-strength ceramic wire-wound resistor is characterized in that: the electric heating tube comprises a ceramic base tube, a resistance wire and two groups of bracket assemblies, wherein the ceramic base tube comprises a tube body with an oval longitudinal section and two connecting parts positioned at two end parts of the tube body, the tube body and the connecting parts are solid, the longitudinal section of the connecting parts is rectangular, the tube body and the connecting parts are of a mutually integrated structure, the resistance wire is spirally wound on the surface of the tube body, and the two groups of bracket assemblies are respectively fixed on the two connecting parts; each group of support assemblies comprise studs, nuts and supports, the supports are buckled at the end parts of the connecting parts, the connecting parts and the supports are mutually fixed through the studs combined with the nuts, the studs are arranged in a direction perpendicular to the length direction of the ceramic base pipe, and two end parts of the resistance wires are fixed on the studs at the corresponding ends of the ceramic base pipe, so that the studs are also used as wiring ends.
2. A high strength ceramic wire wound resistor as claimed in claim 1, wherein: each connecting part is provided with two transition holes perpendicular to the length direction of the ceramic base pipe, and the stud penetrates through the support and the transition holes and then is sleeved with the nut, so that the connecting parts and the support are mutually fixed.
3. A high strength ceramic wire wound resistor as claimed in claim 2, wherein: and a gasket is arranged between the nut and the bracket.
4. A high strength ceramic wire-wound resistor as claimed in claim 1, 2 or 3, wherein: the support comprises an upper support and a lower support which are integrally formed into a U shape in a stamping mode, and the upper support and the lower support are buckled at the upper end portion and the lower end portion of the connecting portion respectively.
5. The high strength ceramic wire wound resistor of claim 4 wherein: the lower support is transversely extended with a support plate.
6. A high strength ceramic wire wound resistor as claimed in claim 5, wherein: the supporting plate is provided with a mounting hole.
7. A high strength ceramic wire wound resistor as claimed in claim 1, wherein: the outer side of the tube body is provided with a spirally arranged groove, and the resistance wire is embedded in the groove.
8. A high strength ceramic wire wound resistor as claimed in claim 7, wherein: the resistance wire is in interference fit with the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487153.4U CN211604831U (en) | 2019-12-30 | 2019-12-30 | High-strength ceramic wire-wound resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487153.4U CN211604831U (en) | 2019-12-30 | 2019-12-30 | High-strength ceramic wire-wound resistor |
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| Publication Number | Publication Date |
|---|---|
| CN211604831U true CN211604831U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922487153.4U Active CN211604831U (en) | 2019-12-30 | 2019-12-30 | High-strength ceramic wire-wound resistor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114639525A (en) * | 2022-03-21 | 2022-06-17 | 南京航空航天大学 | Embedded resistor |
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2019
- 2019-12-30 CN CN201922487153.4U patent/CN211604831U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114639525A (en) * | 2022-03-21 | 2022-06-17 | 南京航空航天大学 | Embedded resistor |
| CN114639525B (en) * | 2022-03-21 | 2022-11-25 | 南京航空航天大学 | Embedded resistor |
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