A multilayer embedded resistor

Abstract

The present invention relates to the field of resistor technology, and in particular to a multi-layer embedded resistor, comprising a plurality of resistor units arranged in layers, each resistor unit comprising a hoop and a plurality of resistor modules arranged in layers surrounded by the hoop, the hoop comprising two or more detachable petals, each resistor module comprising an insulating tape layer and insulating separation layers stacked and attached to the upper and lower sides of the tape layer, the tape layer having a curved receiving groove, a resistor tape arranged along the receiving groove, the resistor tapes of a plurality of resistor modules of the same resistor unit being connected in series or in parallel to form a single resistor core, and the single resistor cores of a plurality of resistor units being connected in series or in parallel to form a total resistor core. The invention can meet the use requirements of large current impact, has a stable structure, is not easy to vibrate and relax, and has high power efficiency for maintenance and replacement.

Description

Technical Field

[0001] The invention relates to the technical field of resistors, and in particular to a multilayer embedded resistor. Background Art

[0002] Existing resistors come in a variety of forms, especially in high-power, high-energy, low-resistance resistors. Some structures are too complex, while others are too simple. Different cracks are directly punched on stainless steel resistor plates to form a circuit and are directly used as resistor sheet components.

[0003] The resistors in the prior art are mainly composed of pieces of metal sheets that are welded and stacked layer by layer. The manufacturing process of this structure is complicated and the cost is high. It is not conducive to large-scale production, and it is difficult to maintain and adjust different power requirements. The current density is too large and unstable. In addition, when some resistors are in use, the metal sheets will vibrate greatly under the action of large currents. The structure is not stable enough and cannot meet the strength requirements. During transportation, the metal sheets are also easy to fall off from the bayonet, damaging the resistor. Summary of the invention

[0004] In view of the above technical problems in the prior art, the present invention provides a multi-layer embedded resistor, which has a stable structure, is easy to maintain, and has different resistance values ​​that can be adjusted to meet different power requirements.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multilayer embedded resistor is provided, comprising a plurality of resistor units arranged in layers, each resistor unit comprising a hoop and a plurality of resistor modules surrounded by the hoop and arranged in layers, the hoop comprising more than two detachable petals, each resistor module comprising an insulating tape layer and insulating separation layers stacked and attached to the upper and lower sides of the tape layer, the tape layer being provided with a curved receiving groove, resistor tapes being arranged along the receiving grooves, the resistor tapes of a plurality of resistor modules of the same resistor unit being connected in series or in parallel to form a single resistor core, and the single resistor cores of a plurality of resistor units being connected in series or in parallel to form a total resistor core.

[0007] Specifically, each resistor module also includes a support column that passes through the corresponding tape layer and the middle of the insulating separation layer, and a limiting groove is provided on the outer side of the support column. The support columns of multiple resistor modules of the same resistor unit and the support columns of multiple resistor units support each other.

[0008] Specifically, an inner positioning structure with convex and concave portions embedded in each other and distributed circumferentially is provided between the outer side of the support column and the insulating separation layer.

[0009] Specifically, an axially distributed convex and concave outer positioning structure is provided between the inner side of the hoop and the outer side of the insulating separation layer.

[0010] Specifically, the receiving groove is in a non-circular continuous winding shape.

[0011] Specifically, the hoop is in a circular ring shape, and the tape layer and the insulating separation layer are correspondingly in a flat cylindrical shape; and / or the circumferential sides of the tape layer and the insulating separation layer are interference-fitted with the inner wall of the hoop.

[0012] Specifically, the hoop includes a first semicircular body and a second semicircular body that are buckled with each other, and metal rings are provided on the outer sides of the first semicircular body and the second semicircular body, so as to lock the first semicircular body and the second semicircular body with each other.

[0013] Specifically, an annular groove is provided on the outer side of the hoop, and the metal ring belt is embedded in the annular groove.

[0014] Specifically, the top and the bottom of the ring hoop are provided with limiting ring protrusions, and two adjacent ring hoops are tightly embedded by relying on the limiting ring protrusions.

[0015] Specifically, it also includes a bottom cover and a top cover, wherein the bottom cover covers the lower part of the resistor unit at the bottom layer, and the top cover covers the upper part of the resistor unit at the top layer.

[0016] Beneficial effects of the present invention:

[0017] The multi-layer embedded resistor of the present invention has, on the one hand, a resistor band arranged in a receiving groove of an insulating band-laying layer, and the upper and lower sides of the band-laying layer are surrounded by insulating separation layers, and the resistor band is laterally insulated and surrounded by the band-laying layer, so that the resistor band is tightly insulated and separated on all sides, so that it can meet the requirements of large current impact use, and the structure is stable and not easy to vibrate and relax. On the other hand, multiple resistor units are stacked and arranged, and when assembling, each resistor unit is first assembled, and then multiple resistor units are stacked and connected to each resistor band, which is convenient for assembly and large-scale production.

[0018] When it is necessary to disassemble and maintain or replace a local resistor unit of different power, first loosen the petals of the hoop, rotate the open part of the petals to expose the resistor module inside, and the petals that remain stationary continue to support the upper and lower resistor units. Then you can operate and maintain or replace the resistor module inside. After completion, close the petals and fix them. The maintenance and replacement power is efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a multi-layer embedded resistor in an embodiment.

[0020] Figure 2 is a cross-sectional view of a multi-layer embedded resistor in an embodiment.

[0021] Figure 3 Schematic diagram of the structure of a single resistor unit in the embodiment.

[0022] Figure 4Schematic diagram of the structure of the tape layer in the embodiment.

[0023] Figure 5 It is an exploded view of a single resistor unit in the embodiment.

[0024] Figure 6 is a cross-sectional view of a single resistor unit in the embodiment.

[0025] Reference numerals:

[0026] Resistor unit 1;

[0027] Ring hoop 2, petal body 21, metal ring belt 22, annular groove 23, external positioning structure 24, limiting ring protrusion 25;

[0028] Resistance module 3, belt layer 31, receiving groove 311, resistance belt 312, insulating separation layer 32, support column 33, limiting groove 331, inner positioning structure 332;

[0029] Bottom cover 4, top cover 5. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0031] A multilayer embedded resistor of this embodiment, such as Figures 1 to 6 As shown, it includes a plurality of resistor units 1 arranged in layers, each resistor unit 1 includes a hoop 2 and a plurality of resistor modules 3 arranged in layers surrounded by the hoop 2, the hoop 2 includes two detachable petals 21, and the actual number of petals 21 can be changed to other numbers of more than two. Specifically, the hoop 2 includes a first semicircular body and a second semicircular body that are interlocked as the petals 21, and a semicircular metal ring band 22 is provided on the outer side of the first semicircular body and the second semicircular body, so as to lock the first semicircular body and the second semicircular body with each other. An annular groove 23 is provided on the outer side of the hoop 2, and the metal ring band 22 is embedded in the annular groove 23.

[0032] Each resistor module 3 includes an insulating tape layer 31 and an insulating separation layer 32 stacked on the upper and lower sides of the tape layer 31 (where the tape layer 31 and the insulating separation layer 32 can be insulated by insulating plastic, insulating ceramic or insulating mica, etc.), the tape layer 31 is provided with a curved receiving groove 311, the receiving groove 311 is in a non-circular continuous and circuitous curved shape, and a resistor tape 312 is arranged along the receiving groove 311. The resistor tapes 312 of multiple resistor modules 3 of the same resistor unit 1 are connected in series or in parallel through a conductor to form a single resistor core, and the single resistor cores of multiple resistor units 1 are connected in series or in parallel through a conductor to form a total resistor core. According to actual needs, the resistor tape 312 can be connected to the outer metal ring tape 22, so that it has the dual functions of fixing and serving as a resistor.

[0033] Specifically, each resistor module 3 further includes a support column 33 penetrating the middle of the corresponding tape layer 31 and the insulating separation layer 32, and an I-shaped limiting groove 331 is provided on the outer side of the support column 33, and the middle holes of the tape layer 31 and the insulating separation layer 32 are inserted in the limiting groove 331. The support columns 33 of multiple resistor modules 3 of the same resistor unit 1 and the support columns 33 of multiple resistor units 1 support each other, so that the insulating separation layers 32 of two adjacent resistor units 1 above and below maintain a certain distance.

[0034] Specifically, a circumferentially distributed convex-concave embedded inner positioning structure 332 is provided between the outer side of the support column 33 and the insulating separation layer 32, and an axially distributed convex-concave embedded outer positioning structure 24 is provided between the inner side of the hoop 2 and the outer side of the insulating separation layer 32, thereby limiting the rotation in the circumferential direction and playing a guiding role during longitudinal assembly.

[0035] In this embodiment, the hoop 2 is in a circular ring shape, and the tape layer 31 and the insulating separation layer 32 are correspondingly in a flat cylindrical shape; and / or the circumferential side of the tape layer 31 and the insulating separation layer 32 is interference fit with the inner wall of the hoop 2.

[0036] In this embodiment, a limiting ring protrusion 25 is provided at the top and bottom of the ring hoop 2, and two adjacent ring hoops 2 are tightly embedded in each other's limiting ring protrusions 25. The limiting ring protrusions 25 are only slightly raised, so that the upper and lower adjacent resistance units 1 will not be laterally separated without external force operation. With sufficient human force, the limitation of the limiting protrusion can be overcome and the resistance units 1 can be rotated to separate laterally.

[0037] In this embodiment, a bottom cover 4 and a top cover 5 are also included. The bottom cover 4 is fixed to the lower part of the bottom resistor unit 1 by bolts, and the top cover 5 is fixed to the upper part of the top resistor unit 1 by bolts.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A multilayer embedded resistor, characterized in that: The invention comprises a plurality of resistor units arranged in layers, each resistor unit comprises a hoop and a plurality of resistor modules arranged in layers surrounded by the hoop, the hoop comprises two or more detachable petals, each resistor module comprises an insulating tape layer and insulating separation layers stacked on the upper and lower sides of the tape layer, the tape layer is provided with a curved receiving groove, a resistor tape is arranged along the receiving groove, the resistor tapes of the plurality of resistor modules of the same resistor unit are connected in series or in parallel to form a single resistor core, and the single resistor cores of the plurality of resistor units are connected in series or in parallel to form a total resistor core; each resistor module also comprises a through A support column passes through the middle of the corresponding tape layer and the insulating separation layer, and a limiting groove is provided on the outer side of the support column. The support columns of multiple resistance modules of the same resistance unit and the support columns of multiple resistance units support each other; the hoop is in a circular ring shape, and the tape layer and the insulating separation layer are correspondingly in a flat cylindrical shape; and / or the circumferential side of the tape layer and the insulating separation layer is interference-fitted with the inner wall of the hoop; the hoop includes a first semicircular body and a second semicircular body that are buckled with each other, and a metal ring belt is provided on the outer side of the first semicircular body and the second semicircular body, so that the first semicircular body and the second semicircular body are locked to each other.

2. The multilayer embedded resistor according to claim 1, characterized in that: An inner positioning structure with convex and concave portions embedded in each other and distributed circumferentially is arranged between the outer side of the support column and the insulating separation layer.

3. The multilayer embedded resistor according to claim 1, characterized in that: An axially distributed convex-concave embedded external positioning structure is arranged between the inner side of the hoop and the outer side of the insulating separation layer.

4. The multilayer embedded resistor according to claim 1, characterized in that: The receiving groove is in a non-circular, continuously winding curved shape.

5. The multilayer embedded resistor according to claim 1, characterized in that: An annular groove is arranged on the outer side of the ring hoop, and the metal ring belt is embedded in the annular groove.

6. The multilayer embedded resistor according to claim 1, characterized in that: The top and the bottom of the ring hoop are provided with limiting ring protrusions, and two adjacent ring hoops are tightly embedded by relying on the mutual limiting ring protrusions.

7. The multilayer embedded resistor according to claim 1, characterized in that: It also includes a bottom cover and a top cover, wherein the bottom cover covers the lower part of the resistor unit at the bottom layer, and the top cover covers the upper part of the resistor unit at the top layer.

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