Aluminum shell resistor with spring type resistor body

Abstract

The utility model relates to an aluminum shell resistor with a spring type resistor body. The aluminum shell resistor comprises an aluminum shell, the spring type resistor body, an insulating support, a leading-out structure, a reserved electrode and an insulating wire holder, the spring type resistor body is embedded in the insulating support, and one end is connected with the lead-out structure; the leading-out structure is connected with the reserved electrode; the reserved electrode is of a structure formed by fixedly connecting a section of regular hexahedron with the bottom surface of a section of cylinder, the reserved electrode is matched with the insulating wire holder, and the insulating wire holder is mounted on the aluminum shell; and the insulating support is arranged in the aluminum shell. Compared with the prior art, the device has the advantages that the reserved electrode is used for positioning, automatic welding can be realized, the device is matched with a corresponding cylindrical hole of the insulating wire holder, guide positioning is realized, and automatic extrusion assembly can be realized; the spring type resistor body adopts a spring structure, is positioned through insulation support, and is convenient to assemble and simple to process; and the insulating support can be an integrated insulating support or a split insulating support, and can be selected according to actual requirements.

Description

Technical Field

[0001] The utility model relates to a resistor, in particular to an aluminum shell resistor with a spring-shaped resistor body. Background Art

[0002] The electrical drive control system in electrical equipment will use control modules such as frequency converters and servers. When the drive module stops, it will generate some regenerative energy due to inertia. To prevent this regenerative energy from returning to the electrical circuit, this energy needs to be consumed. Resistors, as energy-consuming devices, are commonly used devices to absorb and consume this regenerative energy. At the same time, there are usually many energy storage devices in the electrical equipment system. When the equipment is shut down, in order to prevent the energy in these energy storage devices from acting reversely in the system circuit, resistors need to be used to consume the remaining energy in these energy storage devices to protect the safety of other electronic devices in the system circuit.

[0003] Production technology is constantly innovating and developing to improve production efficiency. The automated production and assembly methods of automatically picking up and assembling parts and automatically locking parts are gradually adopted to improve the production efficiency and reliability of products and reduce the dependence on personnel and work experience. The automation level of resistor production in the existing technology needs to be improved.

[0004] Therefore, how to design a resistor suitable for automated production is a technical problem that needs to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide an aluminum shell resistor with a spring-shaped resistor body in order to overcome the defect that the prior art is not suitable for automated production.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the utility model, there is provided an aluminum shell resistor with a spring-shaped resistor, comprising an aluminum shell, a lead-out structure, a reserved electrode, and also a spring-shaped resistor, an insulating support and an insulating terminal block; the spring-shaped resistor is embedded in the insulating support, and one end is connected to the lead-out structure; the other end of the lead-out structure is connected to the reserved electrode; the reserved electrode is a structure in which a section of a regular hexahedron and a section of a cylinder bottom surface are fixedly connected, a circular hole is provided in the insulating terminal block, the reserved electrode and the insulating terminal block are interference fit, and the insulating terminal block is installed on the aluminum shell; the insulating support is installed in the aluminum shell.

[0008] As a preferred technical solution, the insulating support is an integrated insulating support or a split insulating support; the integrated insulating support is a cubic structure, and the interior is divided into an area for accommodating a spring-shaped resistor and a lead-out structure; the split insulating support includes a first section support, a middle section support and a tail section support, the first section support and the middle section support support the spring-shaped resistor, and the tail section support supports the lead-out structure.

[0009] As a preferred technical solution, there is at least one middle section support, which is provided with at least one arc-shaped groove, the grooves are not connected to each other, and the spring-shaped resistor is placed in the groove.

[0010] As a preferred technical solution, the insulating support is an insulating support made of ceramic material.

[0011] As a preferred technical solution, a hook-type buckle is provided on each side of the insulating terminal block, a connecting device is provided on the aluminum shell, grooves are provided on both sides of the connecting device, and the hook-type buckle is clamped in the grooves of the connecting device.

[0012] As a preferred technical solution, the insulating terminal block is provided with a guide column, and the connecting device is provided with a guide hole; the guide column and the guide hole have the same taper and cooperate with each other.

[0013] As a preferred technical solution, the lead-out structure includes a lead-out wire and a metal round tube. The bare wire end of one end of the spring-shaped resistor is crimped to the lead-out wire through the metal round tube, and the other end of the lead-out wire is welded on the plane where one end of the reserved electrode is led out.

[0014] As a preferred technical solution, the welding point between the lead wire and the reserved electrode is sealed by a sealant.

[0015] As a preferred technical solution, a layer of mica sheet is attached to the inner surface of the aluminum shell.

[0016] As a preferred technical solution, the resistor further includes an insulating filler, which fills the gap in the aluminum housing.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1) The utility model reserves a section of regular hexahedron for positioning, and the bottom surface can realize automatic welding; a section of cylinder and the corresponding cylindrical hole of the insulating terminal block cooperate to play a guiding and positioning role, and the limit of the regular hexahedron contour can realize automatic extrusion assembly;

[0019] 2) The spring-shaped resistor of the utility model adopts a spring structure, is positioned by insulating support, and is easy to assemble; the processing is simple, and the types of materials used are reduced;

[0020] 3) The insulation support of the utility model can be an integrated insulation support or a split insulation support, and the structural form used can be determined according to the difficulty of the porcelain processing cost;

[0021] 4) The insulating terminal block of the utility model is clamped in the groove of the connecting device by a hook-type buckle, which can prevent the insulating terminal block from being separated from the aluminum shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0024] Figure 3 This is an exploded view of the overall structure of Embodiment 1 of the utility model;

[0025] Figure 4 This is an exploded view of the overall structure of Embodiment 2 of the present utility model;

[0026] Figure 5 This is a schematic diagram of the reserved electrode structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the connection of the reserved electrodes and lead wires of the utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the insulating terminal block of the utility model;

[0029] Figure 8 This is the front view of the insulating terminal block of the utility model;

[0030] Fig. 9 This is a schematic diagram of the installation of the reserved electrodes, lead wires and insulated terminal blocks of the utility model;

[0031] Fig.10 This is a schematic diagram of the installation of the integrated insulating support and spring-type resistor of the utility model;

[0032] Fig.11 This is a schematic diagram of the installation of the split insulation support and spring-type resistor of the utility model;

[0033] Fig.12 This is a schematic diagram of the structure of the integrated insulating support aluminum housing of the utility model;

[0034] Fig.13 This is a schematic diagram of the structure of the split insulating support aluminum housing of the utility model;

[0035] The numbers in the figure show:

[0036] 1. Aluminum shell, 2. Spring-shaped resistor, 3. Metal round tube, 4. Lead wire, 5. Reserved electrode, 6. Insulating terminal block, 7. Sealant, 8. Insulating filler, 9. Insulating support, 10. Mica sheet. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0038] Example 1

[0039] like Figure 1 and Figure 3 As shown, the present invention provides an aluminum shell resistor with a spring-shaped resistor body, including an aluminum shell 1, a spring-shaped resistor body 2, an insulating support 9, a lead-out structure, a reserved electrode 5, a sealant 7, an insulating terminal block 6 and an insulating filler 8.

[0040] One end of the spring-type resistor 2 is connected to the lead-out structure. The spring-type resistor 2 adopts a spring structure to support the ceramic part for positioning, and is easy to assemble; the core body is easy to process, and the types of materials used are reduced.

[0041] The lead-out structure includes a lead-out wire 4 and a metal round tube 3 , and one end of the spring-shaped resistor 2 and a bare wire end of one end of the lead-out wire 4 are cold-pressed together through the metal round tube 3 .

[0042] like Fig.10 As shown, the insulating support 9 is an integrated insulating support 9 made of ceramic and having an overall cubic structure. The internal division accommodates the spring-shaped resistor 2 and the lead-out structure to ensure that the multiple spring-shaped resistors 2 do not contact each other.

[0043] like Figure 5 As shown, the reserved electrode 5 is a structure in which a regular hexahedron and a cylindrical bottom surface are fixedly connected, and an internal thread is provided inside the regular hexahedron segment.

[0044] like Figure 6 As shown, a plane is led out from one end of the cylindrical segment, a lead-out wire 4 of the lead-out structure is welded on the plane, and a welding point between the lead-out wire 4 and the reserved electrode 5 is sealed by a sealant 7 .

[0045] like Figure 7 and Figure 8As shown, hook-type buckles and guide columns are provided on both sides of the insulating terminal block 6. The hook-type buckles are clamped in the grooves on both sides of the connecting device to prevent the terminal block from falling; the guide columns and the guide grooves of the connecting device have the same taper and cooperate with each other.

[0046] like Fig. 9 As shown, a circular hole is provided in the insulating terminal block 6, which is interference-fitted with the reserved electrode 5, and the reserved electrode 5 and the lead wire 4 are welded.

[0047] like Fig.12 As shown, the aluminum housing 1 is a cubic structure as a whole, with a hollow interior and a connecting device perpendicular to the bottom surface installed on the side. Grooves are provided on both sides of the connecting device, and a guide hole is provided in the middle. The assembled spring-shaped resistor 2, insulating support 9 and lead-out structure are installed inside the aluminum housing 1, and the gap inside the aluminum housing 1 is filled with insulating filler 8. Mounting ears are also provided on both sides of the outer surface of the aluminum housing 1.

[0048] The aluminum housing 1 uses a large flat surface as a filling surface to realize the automation of insulating material filling; its back side is used as a filler support plane, which can well clamp and position the aluminum housing 1; the automation of insulating material filling reduces the work experience requirements of the operator.

[0049] The resistance alloy wire is wound into a spring form as a core body, that is, a spring form resistor body 2, and the reserved spring form resistor body 2 terminal end and the bare wire end of the lead wire 4 are cold-pressed through a metal round tube 3; the bare wire end of the lead wire 4 at the other end is welded to the plane of the tail of the reserved electrode 5 (internal thread hexagonal threaded column) to form an electrical connection loop, thereby realizing the electrical connection path between the resistor body and the reserved electrode 5 (internal thread hexagonal threaded column); the reserved electrode 5 is reversely extruded into the insulating terminal block 6 to form a reserved electrode 5 terminal block; the lead wire 4 is welded to the reserved electrode 5, and is sealed inside the insulating terminal block 6 with a sealant 7 to prevent the metal at the welding position from being exposed and oxidized, thereby blocking discharge to other metal surfaces.

[0050] This embodiment adopts an integrated insulating support 9 , into which the spring-shaped resistor 2 is embedded, and then the whole is placed in the inner cavity of the aluminum housing 1 .

[0051] Example 2

[0052] like Figure 2 and Figure 4 As shown, the present invention provides an aluminum shell resistor with a spring-shaped resistor body, including an aluminum shell 1, a spring-shaped resistor body 2, an insulating support 9, a lead-out structure, a reserved electrode 5, a sealant 7, an insulating terminal block 6 and an insulating filler 8.

[0053] One end of the spring-type resistor 2 is connected to the lead-out structure. The spring-type resistor 2 adopts a spring structure to support the ceramic part for positioning, and is easy to assemble; the core body is easy to process, and the types of materials used are reduced.

[0054] The lead-out structure includes a lead-out wire 4 and a metal round tube 3 , and one end of the spring-shaped resistor 2 and a bare wire end of one end of the lead-out wire 4 are cold-pressed together through the metal round tube 3 .

[0055] like Fig.11 As shown, the insulating support 9 is a split insulating support 9, made of ceramic, including a first section support, a middle section support and a tail section support, all of which are strip structures, with a length less than or equal to the width of the aluminum housing 1, the first section support and the middle section support support the spring-shaped resistor 2, the tail section support supports the lead-out structure, and the middle section support is provided with at least one arc-shaped groove, the grooves are not connected to each other, the spring-shaped resistor 2 is placed in the groove, one spring-shaped resistor 2 is placed in one groove, and multiple spring-shaped resistors 2 do not contact each other. The number of middle section supports can be selected according to the length of the spring-shaped resistor 2 and actual needs to ensure that the spring-shaped resistor 2 does not collapse and does not contact each other.

[0056] like Figure 5 As shown, the reserved electrode 5 is a structure in which a regular hexahedron and a cylindrical bottom surface are fixedly connected, and an internal thread is provided inside the regular hexahedron segment.

[0057] like Figure 6 As shown, a plane is led out from one end of the cylindrical segment, a lead-out wire 4 of the lead-out structure is welded on the plane, and a welding point between the lead-out wire 4 and the reserved electrode 5 is sealed by a sealant 7 .

[0058] like Figure 7 and Figure 8 As shown, hook-type buckles and guide columns are provided on both sides of the insulating terminal block 6. The hook-type buckles are clamped in the grooves on both sides of the connecting device to prevent the terminal block from falling; the guide columns and the guide grooves of the connecting device have the same taper and cooperate with each other.

[0059] like Fig. 9 As shown, a circular hole is provided in the insulating terminal block 6, which is interference-fitted with the reserved electrode 5, and the reserved electrode 5 and the lead wire 4 are welded.

[0060] like Fig.13 As shown, the aluminum housing 1 is a cubic structure as a whole, hollow inside, with a layer of mica sheet 10 attached to the inner surface, and a connecting device perpendicular to the bottom surface is installed on the side. Grooves are provided on both sides of the connecting device, and a guide hole is provided in the middle. The assembled spring-shaped resistor 2, insulating support 9 and lead-out structure are installed inside the aluminum housing 1, and the gap inside the aluminum housing 1 is filled with insulating filler 8. A hole for leading out the lead wire 4 is opened on the side of the aluminum housing 1.

[0061] The aluminum housing 1 uses a large flat surface as a filling surface to realize the automation of insulating material filling; its back side is used as a filler support plane, which can well clamp and position the aluminum housing 1; the automation of insulating material filling reduces the work experience requirements of the operator.

[0062] The resistance alloy wire is wound into a spring form as a core body, that is, a spring form resistor body 2, and the reserved spring form resistor body 2 terminal end and the bare wire end of the lead wire 4 are cold-pressed through a metal round tube 3; the bare wire end of the lead wire 4 at the other end is welded to the plane of the tail of the reserved electrode 5 (internal thread hexagonal threaded column) to form an electrical connection loop, thereby realizing the electrical connection path between the resistor body and the reserved electrode 5 (internal thread hexagonal threaded column); the reserved electrode 5 is reversely extruded into the insulating terminal block 6 to form a reserved electrode 5 terminal block; the lead wire 4 is welded to the reserved electrode 5, and is sealed inside the insulating terminal block 6 with a sealant 7 to prevent the metal at the welding position from being exposed and oxidized, thereby blocking discharge to other metal surfaces.

[0063] This embodiment uses a split ceramic insulating support 9, and the two ends of the spring-shaped resistor 2 are first assembled with the first section support and the tail section respectively, and then placed inside the aluminum shell, and then the middle section support supports the spring-shaped resistor 2. A layer of mica sheet 10 is pre-placed at the bottom and side of the aluminum shell cavity to enhance insulation; the above method is used to ensure the position of the spring-shaped resistor 2 relative to the aluminum shell cavity, and the gap between the aluminum shell cavity and the spring-shaped resistor 2 is filled with insulating material, the resistor is encapsulated, and the electrode terminal block is assembled to the corresponding position of the aluminum shell and fixed.

[0064] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An aluminum housing resistor with a spring-shaped resistor body, comprising an aluminum housing (1), a lead structure, and a reserved electrode (5), characterized in that: The resistor further comprises a spring-shaped resistor body (2), an insulating support (9) and an insulating terminal block (6); the spring-shaped resistor body (2) is embedded in the insulating support (9), one end of which is connected to a lead-out structure; the other end of the lead-out structure is connected to a reserved electrode (5); the reserved electrode (5) is a structure in which a section of a regular hexahedron and a section of a cylinder bottom surface are fixedly connected; a circular hole is provided in the insulating terminal block (6); the reserved electrode (5) and the insulating terminal block (6) are interference-fitted; the insulating terminal block (6) is mounted on an aluminum housing (1); the insulating support (9) is mounted in the aluminum housing (1).

2. The aluminum housing resistor with a spring-shaped resistor body according to claim 1, characterized in that: The insulating support (9) is an integrated insulating support (9) or a split insulating support (9); the integrated insulating support (9) is a cubic structure, and an area for accommodating a spring-shaped resistor (2) and a lead-out structure is divided inside; the split insulating support (9) comprises a first section support, a middle section support and a tail section support, the first section support and the middle section support support the spring-shaped resistor (2), and the tail section support supports the lead-out structure.

3. The aluminum housing resistor with a spring-shaped resistor body according to claim 2, characterized in that: There is at least one middle section support, on which is provided at least one arc-shaped groove, the grooves are not interconnected, and the spring-shaped resistor (2) is placed in the groove.

4. The aluminum housing resistor with a spring-shaped resistor body according to claim 1, characterized in that: The insulating support (9) is an insulating support (9) made of ceramic material.

5. The aluminum housing resistor with a spring-shaped resistor body according to claim 1, characterized in that: The insulating wiring seat (6) is provided with a hook-type buckle on each side, the aluminum housing (1) is provided with a connecting device, and grooves are provided on both sides of the connecting device, and the hook-type buckle is clamped in the grooves of the connecting device.

6. The aluminum housing resistor with a spring-shaped resistor body according to claim 5, characterized in that: The insulating terminal block (6) is provided with a guide column, and the connecting device is provided with a guide hole; the guide column and the guide hole have the same taper and cooperate with each other.

7. The aluminum housing resistor with a spring-shaped resistor body according to claim 1, characterized in that: The lead-out structure comprises a lead-out wire (4) and a metal round tube (3); a bare wire end at one end of the spring-shaped resistor (2) is crimped to the lead-out wire (4) via the metal round tube (3); and the other end of the lead-out wire (4) is welded to a plane where one end of the reserved electrode (5) is led out.

8. The aluminum housing resistor with a spring-shaped resistor body according to claim 7, characterized in that: The welding point between the lead wire (4) and the reserved electrode (5) is sealed by a sealant (7).

9. The aluminum housing resistor with a spring-shaped resistor body according to claim 1, characterized in that: A layer of mica sheet (10) is attached to the inner surface of the aluminum housing (1).

10. The aluminum housing resistor with a spring-shaped resistor body according to claim 1, characterized in that: The resistor further comprises an insulating filler (8), wherein the insulating filler (8) fills the gap in the aluminum housing (1).

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