Resistance box device for nuclear power

Abstract

The utility model relates to a resistance box device for nuclear power. The resistance box device comprises a shell assembly and a resistance unit positioned in the shell assembly, a metal tube resistance box is mounted on the lower bottom plate on the inner side of the right side plate, the resistance unit comprises a plurality of groups of metal resistance tubes, and the head end and the tail end of each group of metal resistance tubes are mounted on the metal tube resistance box through joint mounting structures. According to the utility model, the housing assembly is provided with the plurality of clamping edges, so that the housing assembly is good in firmness during installation, and the internal resistor unit can be protected conveniently. The resistor unit in the shell assembly comprises a plurality of groups of metal resistor tubes which are distributed in a snakelike manner and is matched with a structure of a plurality of heat dissipation holes, so that the heat dissipation performance of the resistor unit in the shell assembly is relatively good.

Description

Technical Field

[0001] The utility model relates to the technical field related to resistance boxes, and in particular to a resistance box device for nuclear power. Background Art

[0002] Nuclear power equipment requires a resistor box. A resistor box is a box-type resistor consisting of several fixed-value resistors of varying resistance values ​​connected in a specific pattern. These fixed-value resistors are typically wound with constantan and manganese copper wire, ensuring their resistance remains essentially constant over temperature. Laboratory resistor boxes come in both plug-in and switch-type configurations.

[0003] After extensive searching, it was found that the prior art publication number is CN219657743U, which discloses a portable current test resistor box, including a box body, and an adsorption member is provided on the side wall of the box body; the box body is provided with: a resistance setting unit for setting the test resistance value, which can be connected to the circuit to be tested; a current acquisition unit for testing the current flowing through the circuit to be tested, which is electrically connected to the resistance setting unit; a heat dissipation unit for dissipating heat from the resistance setting unit, which is connected to the resistance setting circuit; the utility model is not only suitable for high-power places, but also has high resistance setting accuracy, simple structure, simple operation, small size, and easy to carry.

[0004] In summary, the existing resistor box housing assembly is generally assembled by snapping together, which results in poor installation firmness, and the layout of the resistor units distributed within the housing assembly results in poor heat dissipation performance.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a resistance box device for nuclear power to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of this utility model is to provide a resistance box device for nuclear power.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A resistor box device for nuclear power, comprising a housing assembly and a resistor unit located within the housing assembly, wherein the housing assembly comprises an upper cover, a lower base, a right side plate, and a left side plate, wherein the upper cover is covered on the lower base, the right side plate is located on the right side of the lower base, and the left side plate is located on the left side of the lower base;

[0009] The upper cover plate is set up in an inverted U-shaped structure. The front and rear sides of the lower base plate are provided with lower base plate clamping edges distributed upward, and the lower base plate clamping edges are assembled with the outer upper cover plate. The bottom of the right side plate is provided with a right side plate first clamping edge distributed toward the inside, and the front and rear sides of the right side plate are provided with a right side plate second clamping edge distributed toward the inside, the first right side plate clamping edge is assembled with the lower base plate below, and the second right side plate clamping edge is assembled with the outer upper cover plate. The front and rear sides of the left side plate are provided with a left side plate first clamping edge distributed toward the inside, and the bottom of the left side plate is provided with a left side plate second clamping edge distributed toward the inside, the first left side plate clamping edge is assembled with the outer upper cover plate, and the second left side plate clamping edge is assembled with the lower base plate below;

[0010] A metal tube resistance box is installed on the lower bottom plate on the inner side of the right side plate. The resistance unit includes several groups of metal resistance tubes. The first and last ends of each group of metal resistance tubes are installed on the metal tube resistance box through a joint mounting structure.

[0011] As a further improvement of the present invention, each group of metal resistance tubes presents a serpentine distribution structure within the housing assembly.

[0012] As a further improvement of the present invention, the joint installation structure includes a metal joint and a nut. The head and tail ends of each group of metal resistance tubes are installed in the metal joint. The first side of the metal joint is clamped on the left side of the metal tube resistance box. The second side of the metal joint passes through the mounting hole on the metal tube resistance box and is locked on the right side of the metal tube resistance box by the nut, and a gasket is also installed between the nut and the metal tube resistance box.

[0013] As a further improvement of the present invention, a limit plate is also installed in the middle position of the lower base plate. The front and rear sides of the limit plate are provided with limit plate clamping edges distributed toward one side. The limit plate clamping edges are assembled together with the outer upper cover plate, and several groups of limit holes for limiting the metal resistor tube are opened on the limit plate.

[0014] As a further improvement of the present invention, the limiting holes are distributed along the vertical direction.

[0015] As a further improvement of the present invention, elastic glue is coated on the inner side wall of the limiting hole.

[0016] As a further improvement of the present invention, a plurality of upper cover plate heat dissipation holes are opened on the upper cover plate, a plurality of lower bottom plate heat dissipation holes are opened on the lower bottom plate, and a plurality of left side plate heat dissipation holes are opened on the left side plate.

[0017] As a further improvement of the present invention, filters are installed in the heat dissipation holes of the upper cover plate, the heat dissipation holes of the lower base plate and the heat dissipation holes of the left side plate.

[0018] As a further improvement of the present invention, a right side panel mounting frame is installed on the top of the right side panel, and a left side panel mounting frame is installed on the top of the left side panel.

[0019] As a further improvement of the present invention, at least one right side panel harness hole is further provided on the right side panel.

[0020] By means of the above solution, the present invention has at least the following advantages:

[0021] The shell assembly of the utility model is provided with a plurality of clamping edge structures, so that the shell assembly has better firmness during installation, and is convenient for protecting the internal resistance unit.

[0022] The resistance unit in the housing assembly includes several groups of serpentine-distributed metal resistance tubes and is equipped with a structure of multiple heat dissipation holes, so that the heat dissipation performance of the resistance unit in the housing assembly is better.

[0023] In addition, the groups of metal resistor tubes are limited by the limiting plates, so that the installation and arrangement of the metal resistor tubes are neat.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a structural diagram of a resistance box device for nuclear power in the utility model;

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle and upper cover;

[0028] Figure 3 yes Figure 1 Schematic diagram of the structure after removing the upper cover;

[0029] Figure 4 yes Figure 3 Schematic diagram of the structure after removing the right side panel;

[0030] Figure 5 yes Figure 4 Structural diagram of the center joint installation structure;

[0031] Figure 6 yes Figure 1 Schematic diagram of the structure of the middle and lower bottom plates;

[0032] Figure 7 yes Figure 1 Schematic diagram of the structure of the middle and right side panels;

[0033] Figure 8 yes Figure 1 Schematic diagram of the structure of the left side panel;

[0034] Figure 9 yes Figure 3 Schematic diagram of the structure of the middle limit plate.

[0035] The meanings of the reference numerals in the figures are as follows.

[0036] Upper cover 1, lower base plate 2, right side plate 3, left side plate 4, upper cover heat dissipation holes 5, metal resistor tube 6, metal tube resistor box 7, limit plate 8, connector mounting structure 9, metal connector 10, gasket 11, nut 12, lower base plate clamping edge 13, lower base plate heat dissipation holes 14, right side plate mounting bracket 15, right side plate first clamping edge 16, right side plate second clamping edge 17, right side plate wiring harness hole 18, left side plate heat dissipation holes 19, left side plate mounting bracket 20, left side plate first clamping edge 21, left side plate second clamping edge 22, limit plate clamping edge 23, limit hole 24. DETAILED DESCRIPTION

[0037] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0039] Example

[0040] like Figures 1 to 9 As shown,

[0041] A resistor box device for nuclear power includes a shell assembly and a resistor unit located inside the shell assembly. The shell assembly includes an upper cover plate 1, a lower base plate 2, a right side plate 3 and a left side plate 4. The upper cover plate 1 covers the lower base plate 2, the right side plate 3 is located on the right side of the lower base plate 2, and the left side plate 4 is located on the left side of the lower base plate 2.

[0042] First, the structure of the housing assembly is detailed:

[0043] The upper cover plate 1 is set as an inverted U-shaped structure. The front and rear sides of the lower base plate 2 are provided with a lower base plate clamping edge 13 distributed upward, and the lower base plate clamping edge 13 is assembled with the outer upper cover plate 1. The bottom of the right side plate 3 is provided with a right side plate first clamping edge 16 distributed inward, and the front and rear sides of the right side plate 3 are provided with a right side plate second clamping edge 17 distributed inward. The right side plate first clamping edge 16 is assembled with the lower base plate 2 below, and the right side plate second clamping edge 17 is assembled with the outer upper cover plate 1. The front and rear sides of the left side plate 4 are provided with a left side plate first clamping edge 21 distributed inward, and the bottom of the left side plate 4 is provided with a left side plate second clamping edge 22 distributed inward. The left side plate first clamping edge 21 is assembled with the outer upper cover plate 1, and the left side plate second clamping edge 22 is assembled with the lower base plate 2 below.

[0044] A plurality of upper cover heat dissipation holes 5 are provided on the upper cover 1, a plurality of lower base plate heat dissipation holes 14 are provided on the lower base plate 2, and a plurality of left side plate heat dissipation holes 19 are provided on the left side plate 4, and filters are installed in the upper cover heat dissipation holes 5, the lower base plate heat dissipation holes 14 and the left side plate heat dissipation holes 19.

[0045] A right panel mounting bracket 15 is mounted on the top of the right panel 3 , a left panel mounting bracket 20 is mounted on the top of the left panel 4 , and at least one right panel harness hole 18 is provided on the right panel 3 .

[0046] Second, the installation structure of the resistor unit in the housing assembly is detailed:

[0047] A metal tube resistance box 7 is installed on the lower base plate 2 on the inner side of the right side plate 3. The resistance unit includes several groups of metal resistance tubes 6. The head and tail ends of each group of metal resistance tubes 6 are installed on the metal tube resistance box 7 through a joint mounting structure 9. Each group of metal resistance tubes 6 presents a serpentine distribution structure in the outer shell assembly.

[0048] The above-mentioned joint mounting structure 9 includes a metal joint 10 and a nut 12. The head and tail ends of each group of metal resistor tubes 6 are installed in the metal joint 10. The first side of the metal joint 10 is clamped on the left side of the metal tube resistor box 7. The second side of the metal joint 10 passes through the mounting hole on the metal tube resistor box 7 and is locked on the right side of the metal tube resistor box 7 by the nut 12. A gasket 11 is also installed between the nut 12 and the metal tube resistor box 7.

[0049] Third, the limiting installation structure of several groups of metal resistance tubes 6:

[0050] A limit plate 8 is also mounted in the middle of the lower base plate 2. The limit plate 8 is provided with sideways limit plate clamping edges 23 on both the front and rear sides. The limit plate clamping edges 23 are assembled with the outer upper cover plate 1. The limit plate 8 is provided with a plurality of groups of limit holes 24 for retaining the metal resistor tube 6. The limit holes 24 are vertically distributed and coated with an elastic adhesive on the inner sidewalls of the limit holes 24. The elastic adhesive can be organic silicone, etc., which can effectively reduce damage to the metal resistor tube 6 caused by the limit holes 24.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly referring to the number of the technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections, or integral connections; mechanical or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A resistor box device for nuclear power, comprising a housing assembly and a resistor unit located in the housing assembly, wherein the housing assembly comprises an upper cover plate (1), a lower base plate (2), a right side plate (3) and a left side plate (4), wherein the upper cover plate (1) covers the lower base plate (2), the right side plate (3) is located on the right side of the lower base plate (2), and the left side plate (4) is located on the left side of the lower base plate (2); Features: The upper cover plate (1) is an inverted U-shaped structure. The front and rear sides of the lower bottom plate (2) are both provided with lower bottom plate clamping edges (13) distributed upwards. The lower bottom plate clamping edges (13) are assembled with the upper cover plate (1) on the outside. The bottom of the right side plate (3) is provided with a right side plate first clamping edge (16) distributed inwards. The front and rear sides of the right side plate (3) are both provided with right side plate second clamping edges (17) distributed inwards. The right side plate first clamping edge (16) is connected to the lower bottom plate below. (2) are assembled together, the second clamping edge (17) of the right side plate is assembled together with the outer upper cover plate (1), the front and rear sides of the left side plate (4) are both provided with a left side plate first clamping edge (21) distributed inwardly, the bottom of the left side plate (4) is provided with a left side plate second clamping edge (22) distributed inwardly, the left side plate first clamping edge (21) is assembled together with the outer upper cover plate (1), and the left side plate second clamping edge (22) is assembled together with the lower bottom plate (2) below; A metal tube resistance box (7) is installed on the lower bottom plate (2) inside the right side plate (3), and the resistance unit includes a plurality of groups of metal resistance tubes (6). Both ends of each group of metal resistance tubes (6) are installed on the metal tube resistance box (7) via a joint installation structure (9).

2. A resistance box device for nuclear power as claimed in claim 1, characterized in that: Each group of the metal resistor tubes (6) presents a serpentine distribution structure in the housing component.

3. A resistance box device for nuclear power as claimed in claim 1, characterized in that: The joint installation structure (9) comprises a metal joint (10) and a nut (12). The head and tail ends of each group of metal resistor tubes (6) are installed in the metal joint (10). The first side of the metal joint (10) is clamped on the left side of the metal tube resistor box (7). The second side of the metal joint (10) passes through the installation hole on the metal tube resistor box (7) and is locked on the right side of the metal tube resistor box (7) by the nut (12). A gasket (11) is also installed between the nut (12) and the metal tube resistor box (7).

4. A resistance box device for nuclear power as claimed in claim 1, characterized in that: A limit plate (8) is also installed in the middle position of the lower base plate (2), and the front and rear sides of the limit plate (8) are both provided with limit plate clamping edges (23) distributed toward one side, and the limit plate clamping edges (23) are assembled together with the outer upper cover plate (1), and a plurality of groups of limit holes (24) for limiting the metal resistor tube (6) are opened on the limit plate (8).

5. A resistance box device for nuclear power as claimed in claim 4, characterized in that: The limiting holes (24) are distributed along the vertical direction.

6. A resistance box device for nuclear power as claimed in claim 4, characterized in that: Elastic glue is coated on the inner side wall of the limiting hole (24).

7. A resistance box device for nuclear power as claimed in claim 1, characterized in that: A plurality of upper cover plate heat dissipation holes (5) are provided on the upper cover plate (1), a plurality of lower bottom plate heat dissipation holes (14) are provided on the lower bottom plate (2), and a plurality of left side plate heat dissipation holes (19) are provided on the left side plate (4).

8. A resistance box device for nuclear power as claimed in claim 7, characterized in that: Filters are installed in the upper cover plate heat dissipation holes (5), the lower base plate heat dissipation holes (14) and the left side plate heat dissipation holes (19).

9. A resistance box device for nuclear power as claimed in claim 1, characterized in that: A right side panel mounting frame (15) is mounted on the top of the right side panel (3), and a left side panel mounting frame (20) is mounted on the top of the left side panel (4).

10. A resistance box device for nuclear power as claimed in claim 1, characterized in that: At least one right side plate harness hole (18) is also provided on the right side plate (3).

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