CN212516741U - Portable light-duty load resistor - Google Patents
Portable light-duty load resistor Download PDFInfo
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- CN212516741U CN212516741U CN202021238704.XU CN202021238704U CN212516741U CN 212516741 U CN212516741 U CN 212516741U CN 202021238704 U CN202021238704 U CN 202021238704U CN 212516741 U CN212516741 U CN 212516741U
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- resistor
- insulating layer
- heat dissipation
- load resistor
- aluminum shell
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Abstract
The utility model belongs to the technical field of load resistors, in particular to a portable light load resistor, which comprises a heat dissipation aluminum shell, wherein a lower insulating layer is clamped in the heat dissipation aluminum shell, and a resistor base body is arranged on the lower insulating layer; the resistor matrix comprises a pulse-type bending structure; an upper insulating layer is arranged on the resistor substrate, and an upper cover body is arranged on the upper insulating layer. Compared with the prior art, the utility model has the following advantages: the utility model realizes high power capacity by reasonably planning the resistance matrix structure and connecting in series and parallel; the resistor is installed at the bottom, so that the assembly and use process is simplified; through reasonable design, effectively guarantee high power capacity when reducing the resistor size, improve the security and the heat dissipation power when using simultaneously, be suitable for using widely.
Description
Technical Field
The utility model belongs to the technical field of load resistor, concretely relates to portable light-duty load resistor.
Background
The load resistor is made of special resistance materials and can be divided into a fixed resistor and a variable resistor, and the existing load resistor for testing the load capacity of equipment such as a generator, a power supply and ups is more and more widely applied to life and work of people; the existing resistance load is mostly products such as an electric heating tube or a winding resistor, and has the problems of large occupied volume, high weight and incapability of meeting the power requirement in a specific space, so that the resistance material needs to be improved to reduce the size of the resistor on the premise of meeting the high power capacity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable light-duty load resistor to there is the problem that occupies bulky, weight is high in current load resistor.
The utility model discloses a realize through following technical scheme: a portable light load resistor comprises a radiating aluminum shell, wherein a supporting table and an inward recess are arranged in the radiating aluminum shell, lower limiting screw holes are formed in the periphery of the supporting table, two rectangular through grooves are formed in one side face of the radiating aluminum shell, a ceramic spacer is clamped on the side face, provided with the rectangular through grooves, of the radiating aluminum shell, and rectangular through holes with the same specification as the rectangular through grooves are formed in the ceramic spacer; a lower insulating layer matched with the shape of the sunken groove is clamped in the sunken groove, and a resistor matrix is arranged on the lower insulating layer; the resistor matrix comprises a pulse-type bending structure, plate-type leading-out pins are arranged at two ends of the resistor matrix and penetrate through the rectangular through groove and the rectangular through hole; an upper insulating layer is arranged on the resistor base body, an upper cover body matched with the heat dissipation aluminum shell is clamped on the supporting table, upper limiting holes are formed in the positions, corresponding to the lower limiting holes, of the periphery of the upper cover body, and the upper cover body and the heat dissipation aluminum shell are fixed through limiting screws.
Specifically, the heat dissipation aluminum shell and the upper cover body are made of 6061 aluminum, have good plasticity and corrosion resistance, and can be colored by anodic oxidation; the resistance matrix is made of nickel-chromium alloy, and the temperature coefficient of the nickel-chromium alloy is low.
Specifically, the upper insulating layer and the lower insulating layer are both aluminum nitride plates, and the aluminum nitride is an electrical insulator and has good dielectric property and excellent conductive capacity.
Specifically, heat-conducting silicone grease layers are arranged between the lower insulating layer and the sunken groove of the heat-radiating aluminum shell and between the upper insulating layer and the upper cover body, and the heat-conducting silicone grease has excellent heat transfer capacity.
Specifically, adhesive glue is filled between the upper insulating layer and the lower insulating layer; the adhesive meets the national military standard GJB 9437-2018 specification, has excellent curing capability and dielectric property, and can ensure the pressure resistance requirement.
Specifically, the part of the plate-type leading-out pin, which is positioned on the outer side of the heat dissipation aluminum shell, is provided with a mounting hole, so that the heat dissipation aluminum shell is convenient to mount and use.
Specifically, the parts of the ceramic spacing body, which are positioned on two sides of the plate-type leading-out pin, are provided with positioning holes, the ceramic spacing body is fixed with the heat dissipation aluminum shell through positioning screws and is separated by the ceramic spacing body, and the improvement of the insulation performance of the resistor is facilitated.
Specifically, radiating fins are uniformly arranged at the bottom of the radiating aluminum shell and the top of the upper cover body, so that radiating power can be ensured in a certain product specification.
Compared with the prior art, the utility model has the following advantages: the utility model realizes high power capacity by reasonably planning the resistance matrix structure and connecting in series and parallel; the resistor material with low temperature coefficient is selected, so that the influence of the temperature coefficient on the resistor can be reduced in a limited space, the temperature influence of the resistor during working can be effectively reduced, and the safety is improved; the structure of the heat dissipation aluminum shell and the upper cover body is reasonably arranged, and 6061 aluminum is selected, so that the heat dissipation power can be effectively improved by increasing the air channel and the fan in a loading process; the resistor is installed at the bottom, so that the assembly and use process is simplified;
through reasonable design, effectively guarantee high power capacity when reducing the resistor size, improve the security when using simultaneously, be suitable for using widely.
Drawings
Fig. 1 is a schematic view of the exploded structure of the present invention.
Fig. 2 is a schematic diagram of the structure of the resistor matrix.
Fig. 3 is a top view of the present invention after assembly.
Fig. 4 is a left side view of fig. 3.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The technical solutions of the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-4, a portable light-duty load resistor comprises a heat-dissipating aluminum shell 1, wherein a supporting table 11 and an inward-recessed groove 12 are arranged in the heat-dissipating aluminum shell 1, lower limiting screw holes 111 are arranged around the supporting table 11, two rectangular through grooves (not shown in the figure) are arranged on one side surface of the heat-dissipating aluminum shell 1, a ceramic partition 4 is clamped on the side surface of the heat-dissipating aluminum shell 1 provided with the rectangular through grooves, and rectangular through holes with the same specification as the rectangular through grooves are arranged on the ceramic partition 4; a lower insulating layer 2 (the same as the upper insulating layer 5) matched with the sunken groove 12 in shape is clamped in the sunken groove 12, a heat-conducting silicone grease layer (not shown in the figure) is arranged between the lower insulating layer 2 and the sunken groove 12 of the heat-radiating aluminum shell 1 and between the upper insulating layer 5 and the upper cover body 6, the heat-conducting silicone grease has excellent heat transfer capacity, and a resistor matrix 3 is arranged on the lower insulating layer 2; the resistance matrix 3 comprises a pulse-shaped bending structure 31 (as shown in fig. 2, the length of the resistance matrix is increased in a limited space), plate-shaped lead-out pins 32 are arranged at two ends of the resistance matrix 3, and the plate-shaped lead-out pins 32 penetrate through the rectangular through groove and the rectangular through hole; an upper insulating layer 5 is arranged on the resistor base body 3, an upper cover body 6 matched with the heat dissipation aluminum shell 1 is clamped on the supporting table 11, an upper limiting hole 61 is arranged at the position, corresponding to the lower limiting hole 111, of the periphery of the upper cover body 6, and the upper cover body 6 and the heat dissipation aluminum shell 1 are fixed through a limiting screw 63.
The radiating aluminum shell 1 and the upper cover body 6 are made of 6061 aluminum, have good plasticity and corrosion resistance, and can be colored by anodic oxidation; the resistance matrix 3 is made of nickel-chromium alloy, and the temperature coefficient of the nickel-chromium alloy is low; the upper insulating layer 5 and the lower insulating layer 2 are both aluminum nitride plates, and the aluminum nitride is an electrical insulator and has good dielectric property and excellent conductive capability.
Adhesive glue is filled between the upper insulating layer and the lower insulating layer, and the adhesive glue can play a role in protecting and fixing the resistor matrix 3; the adhesive meets the national military standard GJB 9437-2018 specification, has excellent curing capability and dielectric property, and can ensure the pressure resistance requirement.
Specifically, the part of the plate-type lead-out pins 32, which is positioned at the outer side of the heat dissipation aluminum shell, is provided with mounting holes 33, so that the heat dissipation aluminum shell is convenient to mount and use; the part of the ceramic separator 4 positioned at the two sides of the plate-shaped lead-out pin 32 is provided with a positioning hole 41, the ceramic separator 4 is fixed with the radiating aluminum shell 1 through a positioning screw 42 and separated by the ceramic separator 4, and the insulation performance of the resistor is improved; the bottom of the heat dissipation aluminum shell 1 and the top of the upper cover body 6 are uniformly provided with heat dissipation fins 62, so that the heat dissipation power can be ensured in a certain product specification.
The utility model realizes high power capacity by reasonably planning the structure of the resistor base body 2 and in a series-parallel connection mode; the resistor material with low temperature coefficient is selected, so that the influence of the temperature coefficient on the resistor can be reduced in a limited space, the temperature influence of the resistor during working can be effectively reduced, and the safety is improved; the structure of the heat dissipation aluminum shell 1 and the upper cover body 6 is reasonably arranged, 6061 aluminum material is selected, and the heat dissipation power can be effectively improved in the loading process by increasing the air duct and the fan; the resistor is installed at the bottom, so that the assembly and use process is simplified;
through reasonable design, the resistor size is reduced, high power capacity is effectively guaranteed, and meanwhile safety in use is improved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A portable light load resistor is characterized by comprising a heat dissipation aluminum shell, wherein a supporting table and an inward recess are arranged in the heat dissipation aluminum shell, lower limiting screw holes are formed in the periphery of the supporting table, two rectangular through grooves are formed in one side face of the heat dissipation aluminum shell, a ceramic spacer is clamped on the side face of the heat dissipation aluminum shell, which is provided with the rectangular through grooves, and rectangular through holes with the same specification as the rectangular through grooves are formed in the ceramic spacer; a lower insulating layer matched with the shape of the sunken groove is clamped in the sunken groove, and a resistor matrix is arranged on the lower insulating layer; the resistor matrix comprises a pulse-type bending structure, plate-type leading-out pins are arranged at two ends of the resistor matrix and penetrate through the rectangular through groove and the rectangular through hole; an upper insulating layer is arranged on the resistor base body, an upper cover body matched with the heat dissipation aluminum shell is clamped on the supporting table, upper limiting holes are formed in the positions, corresponding to the lower limiting holes, of the periphery of the upper cover body, and the upper cover body and the heat dissipation aluminum shell are fixed through limiting screws.
2. A portable lightweight load resistor according to claim 1 wherein said heat dissipating aluminum case and upper cover are made of 6061 aluminum and the resistor substrate is made of nickel chromium.
3. A portable lightweight load resistor according to claim 1 wherein said upper and lower insulating layers are aluminum nitride plates.
4. The portable lightweight load resistor according to claim 1 wherein a thermally conductive silicone layer is provided between the lower insulating layer and the recessed groove of the heat dissipating aluminum case and between the upper insulating layer and the upper cover.
5. The portable lightweight load resistor of claim 1 wherein an adhesive is applied between said upper and lower insulating layers.
6. The portable lightweight load resistor of claim 5 wherein said adhesive conforms to the national military standard GJB 9437 and 2018 specification.
7. A portable light-weight load resistor as recited in claim 1, wherein the plate-shaped lead-out pins are provided with mounting holes at portions thereof located outside the heat dissipating aluminum case.
8. The portable light-weight load resistor as recited in claim 1, wherein the ceramic spacer is provided with positioning holes at portions thereof on both sides of the plate-shaped lead-out pins, and is fixed to the heat dissipating aluminum case by means of positioning screws.
9. The portable lightweight load resistor as recited in claim 1, wherein said heat dissipating aluminum case bottom and said top of said upper cover are uniformly provided with heat dissipating fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021238704.XU CN212516741U (en) | 2020-06-30 | 2020-06-30 | Portable light-duty load resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021238704.XU CN212516741U (en) | 2020-06-30 | 2020-06-30 | Portable light-duty load resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212516741U true CN212516741U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021238704.XU Active CN212516741U (en) | 2020-06-30 | 2020-06-30 | Portable light-duty load resistor |
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| CN (1) | CN212516741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517102A (en) * | 2021-04-15 | 2021-10-19 | 蚌埠市双环电子集团股份有限公司 | Integrated water-cooling module resistor |
-
2020
- 2020-06-30 CN CN202021238704.XU patent/CN212516741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517102A (en) * | 2021-04-15 | 2021-10-19 | 蚌埠市双环电子集团股份有限公司 | Integrated water-cooling module resistor |
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