Production method of partitioned resistance chip high-power resistor and high-power resistor

Abstract

The present application relates to the technical field of high-power resistor, conductive connection, electrothermal technology, and provides a production method of a high-power resistor with separated resistor sheets and the high-power resistor. The method comprises: processing a metal material through a laser device to make a resistor shell with convection heat dissipation holes; processing a plurality of cuboid-shaped resistor sheets, each resistor sheet being provided with an insulating support at an end portion and being capable of being connected in series and parallel according to resistance requirements as an independent resistance unit; and installing the resistor sheets into the shell at intervals to form a convection space of a preset height between adjacent resistor sheets, which is communicated with an external environment through the convection heat dissipation holes. The method of the present application obtains a high-power resistor composed of independent resistance units through a separated design and convection heat dissipation, effectively reduces the thermal load and energy consumption of the high-power resistor, and prolongs the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical fields of manufacturing of structural parts of new energy electrical equipment, electrically conductive connection, electric heating, energy saving engineering technology, high-power resistor, and particularly relates to a production method of a partition type high-power resistor and the high-power resistor. BACKGROUND

[0002] The high-power metal resistor, as a structural part of many new energy electrical equipment, is a resistor that can withstand high power without overheating. The closed high-power resistor is a common type of resistor. Such closed high-power resistor is usually closed by a metal shell inside the resistor sheet and insulating material. In order to ensure the filling of the insulating material inside the metal shell, the metal shell is of a closed structure and cannot be opened or slotted. The heat generated by the resistor sheet is conducted to the metal shell through the contact of the insulating material and the resistor sheet, and then conducted to the external environment of the metal shell through the metal shell. Such closed resistor is composed of a single metal shell and its internal structure to form a single high-power metal resistor. The heat dissipation can only rely on contact heat conduction. The heat conduction performance of the insulating material and the metal shell is poor, resulting in large thermal load of the entire high-power metal resistor, high energy consumption, and shortened service life.

[0003] In summary, the existing closed high-power resistor has the technical problems of heat dissipation relying only on contact heat conduction, poor heat conduction performance of the insulating material and the metal shell, large thermal load of the entire high-power metal resistor, high energy consumption, and shortened service life. SUMMARY

[0004] In view of the above-mentioned problems of the prior art, the present application provides a production method of a partition type high-power resistor and the high-power resistor to reduce the thermal load and energy consumption of the high-power resistor and prolong the service life of the high-power resistor.

[0005] In a first aspect, the present application provides a production method of a partition type high-power resistor, comprising:

[0006] The metal material is processed by a laser device to form a resistor shell body with a convection heat dissipation hole, and a plurality of resistor sheets are processed. Each resistor sheet is regarded as an independent resistor unit. Each independent resistor unit is connected in series or parallel according to the resistance use requirement;

[0007] Each resistor sheet is installed in the resistor shell body at intervals, so that a convection space with a predetermined height is formed between adjacent resistor sheets. The convection space is in communication with the external environment of the resistor shell body through the convection heat dissipation hole of the resistor shell body;

[0008] When the plurality of resistance pieces are processed, each resistance piece is processed into a cuboid-shaped resistance piece body, and an insulating support is arranged at the end of the resistance piece body; when the resistance pieces are installed, the insulating support at the end of the resistance piece body of each resistance piece is fixed with the resistor shell to install each resistance piece into the resistor shell in a spaced manner.

[0009] In a second aspect, the application provides a high-power resistor, which is produced by using the production method of the high-power resistor with separated resistance pieces.

[0010] Compared with the prior art, the application has the following beneficial effects:

[0011] The application provides a production method of a high-power resistor with separated resistance pieces and a high-power resistor. The method comprises the following steps: processing a metal material by using a laser device to form a resistor shell with a convection heat dissipation hole, and processing a plurality of resistance pieces, each resistance piece being taken as an independent resistance unit, and each independent resistance unit being connected in series or parallel according to resistance use requirements; installing each resistance piece into the resistor shell in a spaced manner, so that a convection space with a preset height is formed between adjacent resistance pieces, and the convection space is in communication with an external environment of the resistor shell through the convection heat dissipation hole of the resistor shell; when the plurality of resistance pieces are processed, each resistance piece is processed into a cuboid-shaped resistance piece body, and an insulating support is arranged at the end of the resistance piece body; when the resistance pieces are installed, the insulating support at the end of the resistance piece body of each resistance piece is fixed with the resistor shell to install each resistance piece into the resistor shell in a spaced manner. According to the method, the high-power resistor composed of independent resistance units is obtained through the separated design and the convection heat dissipation, the thermal load and the energy consumption of the high-power resistor are effectively reduced, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings, which are not necessarily drawn to scale, like reference numerals describe corresponding parts throughout the several views of the drawings:

[0013] Figure 1 Fig. 1 is a flow diagram of the production method of the high-power resistor with separated resistance pieces according to an embodiment of the application;

[0014] Figure 2 Fig. 2 is an exploded structure diagram of the high-power resistor according to an embodiment of the application;

[0015] Figure 3It is a disassembled structure schematic view of the shell cover, mounting seat and insulation support of the high-power resistor of the embodiment of the present application.

[0016] Figure 4 It is a disassembled structure schematic view of the mounting through hole of the side plate of the high-power resistor of the embodiment of the present application.

[0017] Figure 5 It is a structure schematic view of the hidden shell cover of the high-power resistor of the embodiment of the present application.

[0018] Figure 6 It is a structure schematic view of the self-locking clamping mounting seat side plate of the upper and lower bending parts of the insulation support of the high-power resistor of the embodiment of the present application.

[0019] Figure 7 It is a structure schematic view of the high-power resistor of the embodiment of the present application.

[0020] Legend:

[0021] 1, resistor shell; 10, convection heat dissipation hole; 11, shell cover; 12, mounting seat; 120, first L-shaped mounting seat; 121, second L-shaped mounting seat; 122, bottom plate; 123, side plate; 1230, mounting through hole;

[0022] 2, resistance sheet; 20, resistance sheet body; 21, insulation support; 210, upper and lower bending parts; 22, bottom resistance sheet;

[0023] 3, convection space;

[0024] 4, bottom heat flow space. DETAILED DESCRIPTION

[0025] In order to make the person in the art better understand the present application scheme, the technical scheme in the embodiment of the present application will be described clearly and completely below in combination with the drawings in the embodiment of the present application. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor shall belong to the scope of protection of the present application.

[0026] Referring to Figures 1-7 , the embodiment of the present application provides a production method of a partition type resistance sheet 2 high-power resistor, which is used to produce a high-power resistor and includes the following steps:

[0027] S101, a metal material is processed by a laser device to form a resistor shell 1 with a convection heat dissipation hole 10, and a plurality of resistance sheets 2 are processed, each resistance sheet 2 is taken as an independent resistance unit, and each independent resistance unit is connected in series or parallel according to resistance use requirements;

[0028] S102, each resistance sheet 2 is installed in the resistor housing 1 at intervals, so that a convection space 3 of a preset height is formed between adjacent resistance sheets 2, and the convection space 3 is in communication with the external environment of the resistor housing 1 through the convection heat dissipation holes 10 of the resistor housing 1;

[0029] S103, when processing a plurality of resistance sheets 2, each resistance sheet 2 is processed into a cuboid-shaped resistance sheet body 20, and an insulating support 21 is arranged at the end of the resistance sheet body 20; when installing the resistance sheet 2, the insulating support 21 at the end of the resistance sheet body 20 of each resistance sheet 2 is fixed with the resistor housing 1, so as to install each resistance sheet 2 in the resistor housing 1 at intervals.

[0030] In this embodiment, the laser equipment processes metal materials to form a resistor housing 1 with convection heat dissipation holes 10, which can solve the problem that the traditional closed shell cannot be drilled and the heat dissipation relies only on contact conduction, and realize the introduction of air convection channel, significantly improve the convection heat exchange capacity, and reduce the thermal load of the resistance sheet 2. Process a plurality of resistance sheets 2 and take each resistance sheet 2 as an independent resistance unit, and connect them in series and parallel according to the demand, which can solve the problem that a single resistance body cannot meet different resistance values and power specifications, and realize modular configuration, flexible expansion and matching of resistance value and power. Each resistance sheet 2 is installed in the shell at intervals, so that a convection space 3 of a preset height is formed between adjacent resistance sheets 2, and the convection space 3 is in communication with the convection heat dissipation holes 10 of the shell, which can solve the problem of internal airflow obstruction and heat point difficulty in carrying away, and realize the inter-sheet distance, the directional convection through the outside world, and the uniform cooling. The resistance sheet body 20 is processed into a cuboid and the insulating support 21 is arranged at the end, and the insulating support 21 is fixed with the shell, which can solve the problem of easy short circuit without insulating support and unstable assembly, and realize the integration of electrical isolation and geometric positioning, and the improvement of assembly consistency and reliability.

[0031] It should be noted that in this embodiment, the resistance sheet body 20 is processed into a cuboid, and the insulating support 21 is arranged at the end and fixed with the shell, which can solve the problem that the existing technology relies on a large volume of insulating filler to bear electrical insulation and mechanical positioning at the same time, and realize the provision of electrical isolation and rigid fixation by the insulating support 21, the provision of heat convection space 3 by the preset inter-sheet distance, and the avoidance of contact short circuit between the resistance sheet 2 and the resistance sheet 2, so as to achieve the multiple effects of insulation, heat dissipation improvement and fixation. Among them, the convection space 3 is formed between the sheets and is in communication with the convection heat dissipation holes 10, which can solve the problem of low efficiency of solid heat conduction relying on insulating filler and metal shell, realize the improvement of convection heat exchange capacity and the reduction of thermal load of the resistance sheet 2, reduce the heat energy consumption, and prolong the service life of the high-power resistor.

[0032] Preferably, when the insulating supports 21 are arranged at the ends of the resistance piece bodies 20, the insulating supports 21 are arranged at both ends of the resistance piece bodies 20; when the resistance pieces 2 are installed, the insulating supports 21 at the two ends of the resistance piece bodies 20 of each resistance piece 2 are fixed to different parts of the resistor housing 1 respectively. When the insulating supports 21 are arranged at both ends of the resistance piece bodies 20 and are fixed to different parts of the housing respectively, the problems of cantilever vibration, thermal expansion displacement and unstable distance between the resistance pieces caused by single-end support can be solved, and the stress symmetry, size stability, distance and insulation reliability under long-term thermal cycle can be improved.

[0033] Preferably, when the resistor housing 1 is processed, the resistor housing 1 is divided into a housing cover 11 and a mounting seat 12 to be processed respectively, and after the housing cover 11 and the mounting seat 12 are processed, each resistance piece 2 is installed on the mounting seat 12, and then the housing cover 11 and the mounting seat 12 are installed, so as to install each resistance piece 2 in the resistor housing 1. When the housing is divided into the housing cover 11 and the mounting seat 12 to be processed respectively, each resistance piece 2 is first installed on the mounting seat 12, and then the housing cover 11 is assembled, which can solve the problem of difficult internal assembly of the traditional closed housing, and realize open assembly and detection, controllable distance and parallelism, and improved overall yield.

[0034] Preferably, the housing cover 11 is a U-shaped cover with three openings and three faces, the three faces of the U-shaped cover are integrally formed, and a plurality of the convection heat dissipation holes 10 are distributed on the two opposite side faces of the three faces. After the three faces of the U-shaped cover are integrally formed, two openings of the U-shaped cover are formed at the opposite ends of the U-shaped cover, and a third opening of the U-shaped cover is formed on one side in the length direction of the U-shaped cover. When the housing cover 11 is a U-shaped cover with three openings and three faces, the three faces are integrally formed, and the convection heat dissipation holes 10 are distributed on the two opposite side faces, which can solve the problems of insufficient one-way ventilation and limited assembly channel, and realize lateral through convection, multi-directional air inlet and outlet path, and consideration of structural strength and assembly convenience. The third opening of the U-shaped cover in the length direction can solve the problem of insufficient assembly or maintenance window, and realize convenient insertion and maintenance of the resistance pieces 2.

[0035] Preferably, the mounting seat 12 comprises a first L-shaped mounting seat 120 and a second L-shaped mounting seat 121, both of which comprise a bottom plate 122 and a side plate 123 connected to form the L shape of the mounting seat 12, the side plate 123 is used to install the resistance sheet 2, and the bottom plate 122 is used to connect with the resistor mounting plate of the new energy electrical equipment to install the resistor as a whole on the new energy electrical equipment. Among them, the first and second L-shaped mounting seats 121 (side plate 123 piece, bottom plate 122 and equipment installation) can solve the problem of lack of rigid reference of the resistance sheet 2 and non-uniformity of the whole machine installation interface, realize the rigid frame of the sheet array, and high compatibility and easy integration with the standard installation surface of the new energy electrical equipment.

[0036] Preferably, the insulating support 21 at both ends of the resistance sheet body 20 of each resistance sheet 2 is fixed with the side plate 123 of the first L-shaped mounting seat 120 and the second L-shaped mounting seat 121 respectively during the installation of the resistance sheet 2, and after the installation of all resistance sheets 2 is completed, the two opposite opening ends of the U-shaped cover are fixed with the side plates 123 of the first L-shaped mounting seat 120 and the second L-shaped mounting seat 121 respectively. Among them, the insulating support 21 at both ends of the resistance sheet 2 is fixed with the side plate 123 of the first and second L-shaped mounting seats 121 respectively, which can realize the overall rigidity and geometric stability of the sheet array. The two opposite opening ends of the U-shaped cover are fixed with the side plates 123 of the two L-shaped mounting seats 12 respectively, which can solve the problem of resonance and deformation caused by insufficient coupling of the cover body and the sheet array frame, and realize the integral stress of the cover and the mounting seat 12 body, and improve the anti-vibration and anti-impact ability.

[0037] Preferably, the side plate 123 of the first L-shaped mounting seat 120 and the second L-shaped mounting seat 121 is provided with a mounting hole 1230, and the hole diameter of the mounting hole 1230 is set according to the size of the end of the insulating support 21; during the installation of the resistance sheet 2, the end of the insulating support 21 at both ends of the resistance sheet body 20 of each resistance sheet 2 is connected with the mounting hole 1230 on the side plate 123 of the first L-shaped mounting seat 120 and the second L-shaped mounting seat 121 respectively, so as to be fixed on the side plate 123 of the first L-shaped mounting seat 120 and the second L-shaped mounting seat 121. Among them, the side plate 123 is provided with the mounting hole 1230 matched with the size of the insulating support 21, and the support is positioned by being worn, which can realize simple and efficient installation and fixation of multiple resistance sheets 2.

[0038] Preferably, when the plurality of convection heat dissipation holes 10 are distributed on the surface of the U-shaped cover, the positions of the plurality of convection heat dissipation holes 10 on one side of the two opposite sides of the U-shaped cover are opposite to the positions of the plurality of convection heat dissipation holes 10 on the other side of the U-shaped cover, and the sizes of all the convection heat dissipation holes 10 are the same. Among them, the positions of the convection heat dissipation holes 10 on the two opposite sides of the U-shaped cover are opposite to each other and the hole diameters are consistent, which can solve the problems of airflow deflection loss caused by misalignment of hole positions and uneven heat exchange between channels, and realize straight-through transverse airflow, predictable pressure loss, and consistent temperature rise between channels.

[0039] Preferably, the convection space 3 formed between adjacent resistance sheets 2 is opposite to the plurality of convection heat dissipation holes 10 on the two opposite sides of the U-shaped cover; the plurality of convection heat dissipation holes 10 on each side of the two opposite sides of the U-shaped cover are arranged to form a plurality of rows of convection heat dissipation holes 10, and the length of each row of convection heat dissipation holes 10 is adapted to the length of the convection space 3, and the specific number of rows of convection heat dissipation holes 10 is set according to the number of convection spaces 3, so that each convection space 3 has a corresponding convection heat dissipation hole 10. Among them, the convection space 3 formed between adjacent resistance sheets 2 is aligned with the plurality of rows of convection holes on the two sides one by one, and the length of each row of holes is matched with the length of the space and the number of rows is set according to the number of spaces, which can solve the problems of mismatch between ventilation holes and heat channels and poor heat exchange in local channel blind area, and realize corresponding air inlet and exhaust windows for each channel, uniform heat exchange in the whole domain, and elimination of hot spots.

[0040] Further, among the three surfaces of the shell cover 11, the surface of the U-shaped cover opposite to the third opening of the U-shaped cover is the front surface of the U-shaped cover, the plurality of convection heat dissipation holes 10 are distributed on the front surface of the U-shaped cover, the resistance sheet 2 closest to the third opening of the U-shaped cover is the bottom resistance sheet 22, the position of the bottom resistance sheet 22 is higher than the upper surface of the bottom plate 122, and the upper surface of the bottom plate 122 is the surface of the bottom plate 122 facing the front surface of the U-shaped cover, so that when the bottom plate 122 is connected with the resistor mounting machine plate of the new energy electrical equipment, the bottom resistance sheet 22 does not contact the resistor mounting machine plate of the new energy electrical equipment, forming a bottom heat flow space 4, the bottom heat flow space 4 is communicated with the plurality of convection heat dissipation holes 10 distributed on the front surface of the U-shaped cover, and is also communicated with the plurality of convection heat dissipation holes 10 distributed on the two opposite sides of the U-shaped cover.

[0041] It should be noted that in a conventional closed resistor, the surface of the closed metal shell is often connected to the resistor mounting board of the new energy electrical equipment, which is a solid plane and does not have the problem of avoiding contact between the bottom resistor sheet 22 and the resistor mounting board of the new energy electrical equipment. In this embodiment, the U-shaped cover front is also provided with a convection heat dissipation hole 10, and the bottom resistor sheet 22 is lifted as a whole above the bottom plate 122, leaving a bottom heat flow space 4 in communication with the outside, and the space is in three-way communication with the front hole and the side hole. By not contacting the equipment mounting part, the bottom heat flow space 4 can solve the problem of heat accumulation at the bottom and conduction to the resistor mounting board caused by the bottom layer being attached to the mounting surface. The bottom heat flow space 4 acts as a supplementary air chamber, and cold air is sucked into the space from the bottom and the front and side communication. The hot air is quickly exhausted. The U-shaped cover front is also provided with a hole and is opposite to the third opening, which can solve the problem of horizontal bias of air flow caused by side hole and the existence of convection blind area at the bottom of the U-shaped cover, and can improve the heat exchange uniformity of each channel. The bottom resistor sheet 22 is lifted and separated from the resistor mounting board of the new energy electrical equipment, which can avoid the problem of short-circuiting heat to the resistor mounting board of the new energy electrical equipment by using the shell as a heat-conducting intermediate. The temperature of the equipment is increased and the convection is weakened. It should be noted that in this embodiment, instead of simply punching multiple holes, the hole position distribution is coupled with the geometric height of the bottom resistor sheet 22 in the multiple resistor sheets 2 to form a three-dimensional air path (bottom heat flow space 4—convection heat dissipation hole 10—convection heat dissipation hole 10) and a comprehensive design for decoupling the resistor mounting board of the new energy electrical equipment. It takes into account the installation versatility and heat dissipation uniformity, and effectively avoids the heat short circuit of the bottom resistor sheet 22 in the resistor to the resistor mounting board of the new energy electrical equipment.

[0042] Further, after the end of the insulating support 21 of each resistor sheet 2 is connected to the mounting through hole 1230 on the side plate 123 of the first L-shaped mounting seat 120 and the second L-shaped mounting seat 121, the end of the insulating support 21 is bent up and down by a jig, so that the up and down bending part 210 of the end of the insulating support 21 is self-locked and clamped on the side plate 123 of the mounting seat 12 and exposes part of the aperture of the mounting through hole 1230. The aperture of the exposed part of the mounting through hole 1230 is in communication with the convection space 3 formed between the adjacent resistor sheets 2, and the side plate 123 convection heat dissipation hole 10 is formed.

[0043] In this embodiment, the assembly action of through-hole positioning and insulation support fixation is combined with the heat dissipation requirement that the side plate 123 ventilation is not blocked in the same structure unit: the insulation support 21 first penetrates into the side plate 123 mounting through-hole 1230, and then the end is bent in the up-down direction by a jig to make it self-locking on the side plate 123, while part of the hole of the through-hole is reserved, and the part of the hole of the through-hole is communicated with the adjacent convection space 3 between the resistance sheets 2, so as to use the through-hole as the convection heat dissipation hole 10. The mechanical self-locking formed by the jig bending can solve the problem of high labor and high cost caused by multi-piece fastening relying on screws, nuts or riveting, realize fastener-free, easy-to-assemble high-reliability assembly; at the same time, the shape of the insulation support 21 after bending deformation is self-locked, which is convenient for visual inspection and has higher assembly consistency. After bending, part of the hole is still exposed and communicated with the convection space 3, which can avoid the problem of insufficient heat dissipation caused by complete occupation of the hole position by the penetrating assembly and local airflow blockage, realize two-in-one of fixation and convection heat dissipation: the jet effect is formed around the hole by the clamping structure, which induces lateral air extraction and homogenizes the temperature field between the sheets. It should be noted that in this embodiment, the target of high-reliability fixation and sufficient convection heat dissipation is achieved in the simple mounting through-hole 1230 assembly design, which reduces the material and assembly complexity, and enhances the local heat exchange capacity through the self-locking clamping and the through-flow channel of the side plate 123 formed by the exposed hole, effectively reduces the thermal load and energy consumption of the high-power resistor, reduces the thermal cross-talk between the resistance sheets 2, and prolongs the service life of the high-power resistor.

[0044] It should be noted that the above embodiments are only preferred specific embodiments of the present application, and the protection scope of the present application is not limited thereto. Any changes or replacements within the technical range disclosed by the present application can be easily thought by those skilled in the art, which should be covered within the protection scope of the present application, and the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for producing a high-power resistor with segmented resistive elements, characterized in that, include: Metal materials are processed using laser equipment to form a resistor housing with convection heat dissipation holes, and multiple resistor sheets are processed. Each resistor sheet is treated as an independent resistor unit, and each independent resistor unit is connected in series and parallel according to the resistor usage requirements. Each resistor element is installed at intervals inside the resistor housing, so that a convection space of a predetermined height is formed between adjacent resistor elements. The convection space is connected to the external environment of the resistor housing through the convection heat dissipation holes of the resistor housing. When processing multiple resistors, each resistor is processed into a rectangular resistor body, and an insulating support is provided at the end of the resistor body. When installing the resistors, the insulating support at the end of the resistor body of each resistor is fixed to the resistor housing, so that each resistor is installed in the resistor housing at intervals. When processing the resistor housing, the resistor housing is divided into a housing cover and a mounting base, which are processed separately. After processing the housing cover and the mounting base, each resistor element is installed on the mounting base at intervals. Then, the housing cover is installed on the mounting base to realize that each resistor element is installed in the resistor housing at intervals. The housing cover is a U-shaped cover with three openings and three sides. The three sides of the U-shaped cover are integrally formed. Multiple convection heat dissipation holes are distributed on two opposite sides of the three sides. After the three sides of the U-shaped cover are integrally formed, two openings of the U-shaped cover are formed at opposite ends of the U-shaped cover, and a third opening of the U-shaped cover is formed on one side of the length direction of the U-shaped cover. The mounting base includes a first L-shaped mounting base and a second L-shaped mounting base. Both the first L-shaped mounting base and the second L-shaped mounting base include a base plate and a side plate. The base plate and the side plate are connected to form an L-shape of the mounting base. The side plate is used to install resistor elements. The base plate is used to connect with the resistor mounting plate of the new energy equipment to install the resistor as a whole onto the new energy equipment.

2. The method for producing a high-power resistor with segmented resistive elements as described in claim 1, characterized in that, When insulating supports are provided at the ends of the resistor body, insulating supports are provided at both ends of the resistor body; when installing the resistor, the insulating supports at both ends of the resistor body of each resistor are fixed to different parts of the resistor housing.

3. The method for producing a high-power resistor with segmented resistive elements as described in claim 1, characterized in that, During the installation of the resistors, the insulating support members at both ends of the resistor body of each resistor are fixed to the side plates of the first L-shaped mounting base and the second L-shaped mounting base, respectively. After all the resistors are installed, the two opposite open ends of the U-shaped cover are fixed to the side plates of the first L-shaped mounting base and the second L-shaped mounting base, respectively.

4. The method for producing a high-power resistor with segmented resistive elements as described in claim 3, characterized in that, The first L-shaped mounting base and the second L-shaped mounting base are both provided with mounting through holes. The diameter of the mounting through holes is set according to the size of the end of the insulating support. When the resistor is installed, the ends of the insulating support at both ends of the resistor body of each resistor are respectively connected to the mounting through holes on the side plates of the first L-shaped mounting base and the second L-shaped mounting base to fix it to the side plates of the first L-shaped mounting base and the second L-shaped mounting base.

5. The method for producing a high-power resistor with segmented resistive elements as described in claim 1, characterized in that, When multiple convection heat dissipation holes are distributed on the surface of the U-shaped cover, the positions of multiple convection heat dissipation holes on one side of the two opposite sides of the U-shaped cover are directly opposite the positions of multiple convection heat dissipation holes on the other side, and all convection heat dissipation holes are the same size.

6. The method for producing a high-power resistor with segmented resistive elements as described in claim 5, characterized in that, The convection space formed between adjacent resistors is opposite to the multiple convection heat dissipation holes on the two opposite sides of the U-shaped cover; in the two opposite sides of the U-shaped cover, the multiple convection heat dissipation holes on each side are arranged to form multiple rows of convection heat dissipation holes, the queue length of each row of convection heat dissipation holes is adapted to the length of the convection space, and the specific number of rows of convection heat dissipation holes is set according to the number of convection spaces, so that each convection space has a corresponding convection heat dissipation hole.

7. A high-power resistor, characterized in that, The high-power resistor is manufactured using the manufacturing method for a high-power resistor with a segmented resistive element as described in any one of claims 1-6.

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