CN218004509U - Heat-resistant cement resistor - Google Patents
Heat-resistant cement resistor Download PDFInfo
- Publication number
- CN218004509U CN218004509U CN202221860121.XU CN202221860121U CN218004509U CN 218004509 U CN218004509 U CN 218004509U CN 202221860121 U CN202221860121 U CN 202221860121U CN 218004509 U CN218004509 U CN 218004509U
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- Prior art keywords
- heat
- cement resistor
- shell
- copper sheet
- resistant cement
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Abstract
The utility model provides a heat resistance cement resistor. The utility model provides a heat resistance cement resistor, includes the shell, the inside of shell is provided with porcelain core, and is provided with the resistance wire on the porcelain core, and the inside of shell and the bottom that is located porcelain core are fixed with the metal sheet, the shell runs through there are five connecting pipes, the bottom of metal sheet is fixed with the copper sheet, and the bottom of copper sheet is provided with the radiating groove, the bottom of copper sheet runs through the inside that the connecting pipe just extended to the connecting pipe, the both ends of metal sheet are provided with the heat conduction coil. The utility model provides a heat resistance cement resistor, the rethread runs through the copper sheet on the connecting pipe and dispels the heat fast on conducting the heat to the metal sheet through the heat conduction coil around the porcelain core, has solved current cement resistor heat dispersion and can not obtain promoting, and in the occasion work that the electric current is big, the heat production is big, leads to the inside cumulative heat of resistance to damage the problem of inner member.
Description
Technical Field
The utility model relates to a cement resistor field especially relates to a heat resistance cement resistor.
Background
The cement resistor is formed by filling and sealing cement, the cement resistor comprises a common cement resistor and a cement wire-wound resistor, the cement resistor is one of the wire-wound resistors, belongs to a resistor with higher power, can allow larger current to pass through, has the same action as the common resistor, can be only used in occasions with large current, such as being connected with a motor in series, limits the starting current of the motor, has small resistance value, has the characteristics of larger overall dimension, shock resistance, moisture resistance, heat resistance, good heat dissipation, low price and the like, is widely applied to equipment such as a power adapter, acoustic equipment, an acoustic frequency divider, instruments, meters, televisions, automobiles and the like, and has a certain heat dissipation function because the cement resistor is sealed by filling, but the heat conduction metal of the cement is weaker than that of the cement, the heat transfer inside the cement resistor is slower, so that the heat dissipation performance of the cement resistor cannot be improved, and the heat generation is large in the occasions with large current, and internal elements are easily damaged by accumulated heat accumulated inside the resistor.
Therefore, it is necessary to provide a heat-resistant cement resistor to solve the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a heat resistance cement resistor has solved current cement resistor single structure, and heat dispersion can not obtain promoting, and in the occasion work that the electric current is big, heat production is big, leads to the inside accumulated heat of resistance to damage the problem of inner member.
In order to solve the technical problem, the utility model provides a heat-resistant cement resistor, which comprises a shell, wherein a porcelain core is arranged inside the shell, a resistance wire is arranged on the porcelain core, and a metal plate is fixed inside the shell and at the bottom of the porcelain core;
the shell runs through there are five connecting pipes, the bottom of metal sheet is fixed with the copper sheet, and the bottom of copper sheet is provided with the radiating groove, the bottom of copper sheet runs through the connecting pipe and extends to the inside of connecting pipe, the both ends of metal sheet are provided with heat conduction coil.
Preferably, the porcelain core is located inside the heat conductive coil.
Preferably, the heat conductive coil is made of copper.
Preferably, the porcelain core is provided with a winding slot matched with the resistance wire.
Preferably, the outer shell is filled with refractory mortar.
Preferably, both ends of the porcelain core are fixed with iron caps, the iron caps are provided with pins, and one ends of the pins penetrate through the shell and extend to the outside of the shell.
Compared with the prior art, the utility model provides a heat resistance cement resistor has following beneficial effect:
the utility model provides a heat resistance cement resistor, the copper sheet that rethread runs through on the connecting pipe dispels the heat fast on conducting coil conducts heat to the metal sheet through the heat conduction around the porcelain core, and the heat dispersion of having solved current cement resistor can not obtain promoting, and in the occasion work that the electric current is big, heat production is big, leads to the inside accumulative heat of resistance to damage the problem of inner member.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a heat-resistant cement resistor according to the present invention;
fig. 2 is a cross-sectional view of the housing shown in fig. 1.
Reference numbers in the figures: 1. the heat-conducting wire comprises a shell, 2, a porcelain core, 3, a resistance wire, 4, a metal plate, 5, a connecting pipe, 6, a copper sheet, 7, a heat-radiating groove, 8, a heat-conducting coil, 9, a winding groove, 10, fire clay, 11, an iron cap, 12 and pins.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1-2, in order to solve the above technical problems, the present invention provides a heat-resistant cement resistor, which includes a housing 1, a ceramic core 2 is disposed inside the housing 1, a resistance wire 3 is disposed on the ceramic core 2, a pin 11 is connected to a circuit, the resistance wire 3 conducts electricity and generates heat, and a metal plate 4 is fixed inside the housing 1 and at the bottom of the ceramic core 2 for facilitating heat conduction;
as shown in fig. 2, the shell 1 of the present invention has five connecting pipes 5, the bottom of the metal plate 4 is fixed with a copper sheet 6, and the bottom of the copper sheet 6 is provided with a heat sink 7, which improves the heat dissipation rate, the bottom of the copper sheet 6 runs through the connecting pipes 5 and extends to the inside of the connecting pipes 5, two ends of the metal plate 4 are provided with heat conductive coils 8, the heat is conducted to the metal plate 4 through the heat conductive coils 8 around the ceramic core 2 and then quickly dissipated through the copper sheet 6 running through the connecting pipes 5, the connecting pipes 5 are communicated with the outside, so that the copper sheet 6 can be contacted with the outside air to dissipate heat accurately and quickly;
the utility model discloses porcelain core 2 is located the inside of heat conduction coil 8, and heat conduction coil 8 is the copper product, is provided with the wire winding groove 9 with 3 looks adaptations of resistance wire on porcelain core 2, improves heat conduction rate.
The utility model discloses having filled in chamotte 10 in shell 1, chamotte 10 has the effect of fire-retardant heat conduction, and the both ends of porcelain core 2 all are fixed with iron cap 11, and are provided with pin 12 on the iron cap 11, and the one end of pin 12 runs through shell 1 and extends to the outside of shell 1.
The utility model provides a heat resistance cement resistor's theory of operation as follows: connect the circuit through pin 11, electrically conductive and the production of heat through resistance wire 3, the rethread runs through copper sheet 6 on connecting pipe 5 and dispels the heat fast on conducting coil 8 with heat conduction to metal sheet 4 around 2 with porcelain core.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. The heat-resistant cement resistor is characterized by comprising a shell (1), wherein a ceramic core (2) is arranged inside the shell (1), a resistance wire (3) is arranged on the ceramic core (2), and a metal plate (4) is fixed inside the shell (1) and positioned at the bottom of the ceramic core (2);
the shell (1) runs through five connecting pipes (5), the bottom of metal sheet (4) is fixed with copper sheet (6), and the bottom of copper sheet (6) is provided with radiating groove (7), the bottom of copper sheet (6) runs through connecting pipe (5) and extends to the inside of connecting pipe (5), the both ends of metal sheet (4) are provided with heat conduction coil (8).
2. A heat resistant cement resistor according to claim 1, characterized in that the ceramic core (2) is located inside the heat conducting coil (8).
3. A heat resistant cement resistor according to claim 1, characterized in that the heat conducting coil (8) is of copper material.
4. Heat-resistant cement resistor according to claim 1, characterized in that the porcelain core (2) is provided with winding slots (9) adapted to the resistance wire (3).
5. A heat resistant cement resistor according to claim 1, characterized in that said outer casing (1) is filled with fire clay (10).
6. A heat resistant cement resistor according to claim 1, characterized in that iron caps (11) are fixed to both ends of the porcelain core (2), and pins (12) are provided on the iron caps (11), and one end of the pins (12) penetrates the housing (1) and extends to the outside of the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221860121.XU CN218004509U (en) | 2022-07-19 | 2022-07-19 | Heat-resistant cement resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221860121.XU CN218004509U (en) | 2022-07-19 | 2022-07-19 | Heat-resistant cement resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218004509U true CN218004509U (en) | 2022-12-09 |
Family
ID=84316806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221860121.XU Active CN218004509U (en) | 2022-07-19 | 2022-07-19 | Heat-resistant cement resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218004509U (en) |
-
2022
- 2022-07-19 CN CN202221860121.XU patent/CN218004509U/en active Active
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