High-power resistance box and electric power system

Abstract

The utility model discloses a high-power resistor box and an electric power system, the resistor box comprises a box body, a resistor disc and an insulating block, the box body comprises an upper plate, a lower plate and a plurality of supporting columns, and two ends of each supporting column respectively penetrate through the upper plate and the lower plate; the resistor discs are snakelike and are all positioned between the upper plate and the lower plate, different resistor discs are respectively positioned at different heights of the box body, and each layer of resistor discs is respectively connected with the adjacent layer of resistor discs in series; a plurality of insulating blocks are arranged, the insulating blocks are positioned between two adjacent layers of resistor discs, between the uppermost layer of resistor disc and the upper plate, and between the lowermost layer of resistor disc and the lower plate, at least three insulating blocks are arranged above or below each resistor disc, and the insulating blocks on the same layer are distributed above or below the resistor discs at intervals; the two ends of the insulating block are connected with the two opposite supporting columns respectively. According to the invention, the compactness of the structure of the resistance box can be improved, and the resistance box has good heat dissipation performance.

Description

Technical Field

[0001] This application relates to the technical field of resistance devices, and particularly to a high-power resistance box and a power system. Background Art

[0002] In the field of electronic technology, as a commonly used electronic component, the power and performance of a resistance box are crucial for the stability and reliability of a circuit. Especially in high-power circuits, the heat dissipation performance and space occupancy efficiency of the resistance box become the main factors restricting its further development.

[0003] In traditional resistance box designs, resistance chips are often simply stacked together, resulting in heat concentration inside the resistance box and poor heat dissipation. When the resistance box is working, the resistance chips generate a large amount of heat. If this heat cannot be dissipated in a timely and effective manner, the temperature inside the resistance box will increase, thereby affecting the performance and lifespan of the resistance chips and even potentially causing safety hazards.

[0004] In addition, there are also some problems in the layout of resistance chips in traditional resistance box designs. Due to the tight stacking of resistance chips, the resistance box occupies a large amount of space in the vertical direction, which not only increases the volume and weight of the resistance box but also brings inconvenience to the layout and installation of the circuit. Summary of the Utility Model

[0005] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a high-power resistance box and a power system, which can improve the compactness of the resistance box structure and have good heat dissipation performance.

[0006] In a first aspect, this application provides a high-power resistance box, including:

[0007] A box body, the box body includes an upper plate, a lower plate, and a plurality of support columns. The upper plate and the lower plate are arranged parallel to each other. The two ends of the support columns respectively pass through the upper plate and the lower plate and are located at the edges of the upper plate and the lower plate;

[0008] Resistance chips, the resistance chips are serpentine and there are several of them. The resistance chips are all located between the upper plate and the lower plate. Different resistance chips are located at different heights of the box body, and each layer of resistance chips is connected in series with the adjacent layer of resistance chips;

[0009] Insulating blocks, several of which are provided. The insulating blocks are located between adjacent layers of the resistance sheets, between the uppermost resistance sheet and the upper plate, and between the lowermost resistance sheet and the lower plate. The length direction of the insulating blocks is perpendicular to the straight part of the resistance sheets. At least three insulating blocks are provided above or below each resistance sheet. The insulating blocks on the same layer are spaced apart and distributed above or below the resistance sheets. Both ends of the insulating blocks are respectively connected to two opposite support columns.

[0010] The high-power resistor box according to the embodiment of the first aspect of the present application has at least the following beneficial effects: The resistance sheets are serpentine and several are provided and are arranged in layers between the upper plate and the lower plate. The resistance sheets between each layer are separated by insulating blocks, that is, there are gaps between adjacent layers of resistance sheets, thereby forming a heat dissipation channel. At least three insulating blocks are provided above or below each resistance sheet to ensure that neither the two sides nor the middle part will sag and deform, improving the stability of each layer of resistance sheets when placed. In addition, the upper plate and the lower plate of the box body are supported and fixed by support columns, so that the heat generated by the resistance sheets can be more easily exported to the outside, improving the overall heat dissipation performance. In addition, multiple layers of resistance sheets are provided and are connected in series with the resistance sheets of adjacent layers, improving the overall working power of the resistor box. Moreover, the resistance sheets are serpentinely bent and multiple resistance sheets are stacked in the vertical space, making the overall structure of the resistor box compact, saving the occupied position in the horizontal direction, and facilitating subsequent transportation.

[0011] According to some embodiments of the first aspect of the present application, a plurality of slots are provided at the upper and lower ends of the insulating block, and the slots are used for the sides of the resistance sheets to be inserted.

[0012] According to some embodiments of the first aspect of the present application, both ends of the resistance sheet penetrate out from the same side of the box body.

[0013] According to some embodiments of the first aspect of the present application, the same-side ends of adjacent layers of resistance sheets are connected by conductive sheets. First positioning holes are provided at the ends of the resistance sheets, and second positioning holes matching the first positioning holes are respectively provided at the upper and lower parts of the conductive sheets.

[0014] According to some embodiments of the first aspect of the present application, one first positioning hole is provided at one end of one side of the resistance sheet, and two first positioning holes are provided at the end of the other side. Two second positioning holes are respectively provided at the upper and lower parts of the conductive sheet.

[0015] According to some embodiments of the first aspect of the present application, clamping grooves matching the outer peripheral sides of the support columns are respectively provided at both ends of the insulating block.

[0016] According to some embodiments of the first aspect of the present application, the box body further includes a fixing frame disposed on the upper surface of the upper plate, and a plurality of handles are provided on the fixing frame.

[0017] According to some embodiments of the first aspect of the present application, threaded holes are provided at both ends of the support column, and first connection holes and second connection holes are respectively provided on the upper plate and the lower plate at positions corresponding to the support column. The upper plate is fixed to one end of the support column by bolts sequentially passing through the first connection hole and the threaded hole at the upper end of the support column, and the lower plate is fixed to the other end of the support column by bolts sequentially passing through the second connection hole and the threaded hole at the lower end of the support column.

[0018] According to some embodiments of the first aspect of the present application, the number of layers of serpentine bending of the resistance sheets in each layer is equal, and the distance between adjacent layers in the same resistance sheet is equal.

[0019] In a second aspect, the present application provides a power system including the high-power resistor box according to any one of the embodiments of the first aspect.

[0020] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The additional aspects and advantages of the present application will become apparent and be easily understood in conjunction with the following description of the embodiments with reference to the accompanying drawings, where:

[0022] Figure 1 is a schematic structural diagram of a high-power resistor box provided by some embodiments of the present application;

[0023] Figure 2 is a side schematic diagram of a high-power resistor box provided by some embodiments of the present application;

[0024] Figure 3 is a schematic structural diagram of a resistance sheet and an insulating block provided by some embodiments of the present application;

[0025] Figure 4 For the present application Figure 3 is an enlarged schematic structural diagram of region A.

[0026] The accompanying reference numerals are as follows:

[0027] Upper plate 110; lower plate 120; support column 130; resistance sheet 200; first positioning hole 201; conductive sheet 210; second positioning hole 211; insulating block 300; slot 310; card slot 320; fixing frame 400; handle 410. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0029] In the description of the present application, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0030] In the description of the present application, if the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present application, unless otherwise clearly defined, words such as setting, installing, and connecting should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0032] In the field of electronic technology, as a commonly used electronic component, the power and performance of a resistance box are crucial for the stability and reliability of a circuit. Especially in high-power circuits, the heat dissipation performance and space occupancy efficiency of the resistance box become the main factors restricting its further development. In traditional resistance box designs, the resistance chips are often simply stacked together, resulting in concentrated heat inside the resistance box and poor heat dissipation. When the resistance box is working, the resistance chips will generate a large amount of heat. If it cannot be dissipated in a timely and effective manner, the temperature inside the resistance box will rise, thereby affecting the performance and lifespan of the resistance chips and even potentially causing safety hazards. In addition, there are also some problems in the layout of the resistance chips in traditional resistance box designs. Due to the tight stacking of the resistance chips, the resistance box occupies a large space in the vertical direction, which not only increases the volume and weight of the resistance box but also brings inconvenience to the layout and installation of the circuit.

[0033] Based on this, the present application provides a high-power resistance box and a power system to solve the above-mentioned technical problems. The technical solutions provided by the present application will be elaborated in detail one by one below.

[0034] In the first aspect, referring to Figure 1 and Figure 2, this application provides a high-power resistor box, including: a box body, resistor chips 200 and insulating blocks 300. The box body includes an upper plate 110, a lower plate 120 and a plurality of support columns 130. The upper plate 110 and the lower plate 120 are arranged parallel to each other. The two ends of the support columns 130 pass through the upper plate 110 and the lower plate 120 respectively, and are located at the edges of the upper plate 110 and the lower plate 120; the resistor chips 200 are serpentine and there are a plurality of them. The resistor chips 200 are all located between the upper plate 110 and the lower plate 120. Different resistor chips 200 are located at different heights of the box body. Each layer of resistor chips 200 is connected in series with the resistor chips 200 of the adjacent layer; there are a plurality of insulating blocks 300. The insulating blocks 300 are located between the resistor chips 200 of adjacent layers, between the uppermost layer of resistor chips 200 and the upper plate 110, and between the lowermost layer of resistor chips 200 and the lower plate 120. The length direction of the insulating blocks 300 is perpendicular to the straight part of the resistor chips 200. There are at least three insulating blocks 300 above or below each resistor chip 200. The insulating blocks 300 of the same layer are spaced apart above or below the resistor chips 200. The two ends of the insulating blocks 300 are respectively connected to two opposite support columns 130.

[0035] The resistor chips 200 are serpentine and there are a plurality of them and are arranged in layers between the upper plate 110 and the lower plate 120. Each layer of resistor chips 200 is separated by an insulating block 300, that is, there is a gap between the resistor chips 200 of adjacent layers, thus forming a heat dissipation channel. There are at least three insulating blocks 300 above or below each resistor chip 200 to ensure that neither the two sides nor the middle part will sag and deform, improving the stability of each layer of resistor chips 200 when placed. In addition, the upper plate 110 and the lower plate 120 of the box body are supported and fixed by the support columns 130, so that the heat generated by the resistor chips 200 can be more easily exported to the outside, improving the overall heat dissipation performance. In addition, there are multiple layers of resistor chips 200 and they are connected in series with the resistor chips 200 of the adjacent layer, improving the overall working power of the resistor box. And the serpentine bending of the resistor chips 200 and the stacking of multiple resistor chips 200 in the vertical space make the overall structure of the resistor box compact, saving the occupied position in the horizontal direction and facilitating subsequent transportation.

[0036] Refer to Figure 3 and Figure 4, it can be understood that a number of slots 310 are provided at the upper and lower ends of the insulating block 300, and the slots 310 are used for the sides of the resistor chips 200 to be inserted. The design of the slots 310 makes the installation and disassembly of the resistor chips 200 more convenient and fast. At the same time, it can stabilize the serpentine bent shape of the resistor chips 200. Since the resistor chips 200 may undergo slight deformation under the action of electromagnetic force when energized, the existence of the slots 310 can effectively limit this deformation, ensuring that the resistor chips 200 can maintain their predetermined serpentine bent shape, guaranteeing that the middle part of the resistor chips 200 will not contact itself, thereby affecting the overall resistance value of the resistor box and improving the stability and reliability of the resistor box. In addition, since the resistor chips 200 are fixed in the slots 310 of the insulating block 300, the structure of the entire resistor box becomes more compact and stable, capable of resisting interference and impact from the external environment.

[0037] Referring to Figure 1 and Figure 2 , it can be understood that both ends of the resistor chip 200 pass through the same side of the box body. The fact that both ends of the resistor chip 200 pass through the same side makes it unnecessary for the staff to perform complex operations inside the resistor box when connecting the resistor chips 200 in series. They only need to make connections on one side of the resistor box to easily achieve the series connection between the resistor chips 200 on different layers. This design greatly improves the operation convenience and work efficiency. Similarly, since both ends of the resistor chip 200 are located on the same side of the resistor box, the wiring of external electronic devices also becomes simpler and more direct. The staff only need to perform wiring operations on this side of the resistor box to connect the resistor box to the external circuit. Through this layout method, not only the time and cost required for wiring are reduced, but also the overall aesthetics and neatness of the circuit are improved.

[0038] Referring to Figures 1 to 3 , it can be understood that the same-side ends of the resistor chips 200 on adjacent layers are connected by conductive sheets 210. First positioning holes 201 are provided at the ends of the resistor chips 200, and second positioning holes 211 matching the first positioning holes 201 are provided at the upper and lower parts of the conductive sheets 210 respectively. By setting the first positioning holes 201 and the second positioning holes 211, the connection between the resistor chips 200 and the conductive sheets 210 becomes more convenient. It only needs to align the second positioning holes 211 on the conductive sheets 210 with the first positioning holes 201 on the resistor chips 200, and then use appropriate fixing parts to easily complete the connection. Similarly, when disassembly is required, only by loosening the fixing parts can the resistor chips 200 and the conductive sheets 210 be quickly separated, greatly improving the work efficiency.

[0039] Referring to Figures 1 to 3, It can be understood that one end of one side of the resistor sheet 200 is provided with a first positioning hole 201, and two first positioning holes 201 are provided at the end of the other side. Two second positioning holes 211 are respectively provided at the upper and lower parts of the conductive sheet 210. By setting different numbers of first positioning holes 201 (one on one side and two on the other side) on both sides of the resistor sheet 200, the resistor sheet 200 is effectively prevented from being wrongly installed in the reverse direction during the installation process, thus ensuring the normal operation of the resistor box. The difference in the number of the first positioning holes 201 provides a clear visual cue for the installer, enabling them to easily identify the correct installation direction of the resistor sheet 200, simplifying the installation process, reducing the error rate, and improving the work efficiency.

[0040] Refer to Figure 1 and Figure 3 , It can be understood that clamping grooves 320 matching the outer peripheral side of the support column 130 are respectively provided at both ends of the insulating block 300. Due to the tight fit between the clamping groove 320 and the outer peripheral side of the support column 130, the insulating block 300 is effectively prevented from shaking or displacing during use, and the stability and reliability of the overall structure of the resistor box can be ensured.

[0041] Refer to Figure 1 and Figure 2 , It can be understood that the box body further includes a fixing frame 400, the fixing frame 400 is arranged on the upper surface of the upper plate 110, and a plurality of handles 410 are provided on the fixing frame 400. By arranging the fixing frame 400 on the upper surface of the upper plate 110 and installing the handles 410 on the fixing frame 400, the entire box body can be carried through the handles 410 when transportation or handling is required. During the handling process, the fixing frame 400 can ensure that each part of the box body remains relatively stable, reducing the risk of deformation or damage to the box body caused by improper handling.

[0042] It can be understood that threaded holes are provided at both ends of the support column 130, first connection holes and second connection holes are respectively provided at the positions corresponding to the support column 130 on the upper plate 110 and the lower plate 120. The upper plate 110 is fixed to one end of the support column 130 by bolts sequentially passing through the first connection hole and the threaded hole at the upper end of the support column 130, and the lower plate 120 is fixed to the other end of the support column 130 by bolts sequentially passing through the second connection hole and the threaded hole at the lower end of the support column 130. The matching manner of the bolts and the threaded holes can provide a firm and reliable connection, ensuring the stable connection between the upper plate 110 and the lower plate 120 and the support column 130, thereby improving the stability of the entire structure.

[0043] Refer to Figure 3 , It can be understood that the number of serpentine bends of the resistor sheets 200 on each layer is equal, and the distance between adjacent layers in the same resistor sheet 200 is equal.

[0044] Second aspect, the present application also provides a power system, including the high-power resistor box of any one of the embodiments of the first aspect. The functions and principles of the power system in this embodiment are all based on the above-mentioned high-power resistor box. Therefore, the power system in this embodiment has the same beneficial effects as the above-mentioned high-power resistor box. For the sake of brevity, the description will not be repeated here.

[0045] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present application pertains, various changes can be made without departing from the purpose of the present application.

Claims

1. A high-power resistor box, characterized in that: include: A box body, the box body comprising an upper plate, a lower plate and a plurality of support columns, the upper plate and the lower plate are arranged parallel to each other, and two ends of the support columns pass through the upper plate and the lower plate respectively and are located at the edges of the upper plate and the lower plate; Resistor sheets, the resistor sheets are serpentine and provided in plurality, the resistor sheets are all located between the upper plate and the lower plate, different resistor sheets are respectively located at different heights of the box body, and the resistor sheets of each layer are respectively connected in series with the resistor sheets of the adjacent layer; Insulating blocks, wherein a plurality of insulating blocks are provided, wherein the insulating blocks are located between the resistor sheets of two adjacent layers, between the resistor sheet of the uppermost layer and the upper plate, and between the resistor sheet of the lowermost layer and the lower plate. The length direction of the insulating blocks is perpendicular to the straight portion of the resistor sheets. At least three insulating blocks are provided above or below each resistor sheet. The insulating blocks of the same layer are spaced apart above or below the resistor sheets, and the two ends of the insulating blocks are respectively connected to the two opposite support columns.

2. The high-power resistor box according to claim 1, characterized in that: The upper end and the lower end of the insulating block are provided with a plurality of slots, and the slots are used for inserting the side edges of the resistor sheet.

3. The high-power resistor box according to claim 1, characterized in that: Two ends of the resistor sheet pass through the same side of the box.

4. The high-power resistor box according to claim 3, characterized in that: The ends of the resistor sheets on the same side of two adjacent layers are connected through a conductive sheet. A first positioning hole is provided at the end of the resistor sheet, and second positioning holes matching the first positioning hole are respectively provided at the upper and lower parts of the conductive sheet.

5. The high-power resistor box according to claim 4, characterized in that: One end of one side of the resistor sheet is provided with one of the first positioning holes, and the other end of the resistor sheet is provided with two of the first positioning holes. The upper and lower parts of the conductive sheet are respectively provided with two of the second positioning holes.

6. The high-power resistor box according to claim 1, characterized in that: Both ends of the insulating block are respectively provided with clamping grooves matching the outer peripheral side of the supporting column.

7. The high-power resistor box according to claim 1, characterized in that: The box body also includes a fixed frame, which is arranged on the upper surface of the upper plate and has a plurality of handles.

8. The high-power resistor box according to claim 1, characterized in that: The support column is provided with threaded holes at both ends, and the upper plate and the lower plate are respectively provided with a first connecting hole and a second connecting hole at positions corresponding to the support column. The upper plate is fixed to one end of the support column by bolts passing through the first connecting hole and the threaded hole at the upper end of the support column in sequence, and the lower plate is fixed to the other end of the support column by bolts passing through the second connecting hole and the threaded hole at the lower end of the support column in sequence.

9. The high-power resistor box according to claim 1, characterized in that: The number of serpentine-bending layers of the resistor sheet in each layer is equal, and the distances between adjacent layers in the same resistor sheet are equal.

10. A power system, characterized in that: It comprises a high-power resistor box as described in any one of claims 1 to 9.

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