Sheet-shaped snakelike resistor

Abstract

The utility model discloses a sheet snakelike resistor, and particularly relates to the technical field of resistors, the sheet snakelike resistor comprises a frame, the frame comprises two symmetrically distributed first fixing plates, the front and rear sides of the two first fixing plates are respectively provided with a second fixing plate, and a plurality of mounting plates are arranged between the two second fixing plates. Slots are formed in the inner walls of the sides, close to the first fixing plate, of every two adjacent mounting plates, snakelike resistor discs are arranged between every two corresponding slots, and resistor blocks are fixedly arranged at the two ends of each snakelike resistor disc. The sheet-shaped snakelike resistor is formed by the two first fixing plates, the two second fixing plates, the multiple installing plates and the multiple snakelike resistor discs, each snakelike resistor disc is connected with the corresponding inserting groove in an inserted mode through the resistor blocks at the two ends, the structure is simple, workers can disassemble, assemble and replace the snakelike resistor discs conveniently, meanwhile, due to the arrangement of the multiple snakelike resistor discs, the working efficiency is improved, and the working efficiency is improved. Therefore, the length of the resistor can be increased, and the high-voltage requirement can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of resistors, in particular to a sheet-shaped serpentine resistor. Background Art

[0002] Chip resistors are electronic components that are commonly used in circuits to provide resistance. They are small, easy to install, and available in a variety of specifications and power levels. Chip resistors are often used in surface mount technology and take up very little space on the circuit board. Chip resistors get their name from their shape, which is usually flat, rectangular or square, similar to small chips. They can have multiple terminals, but the most common type has two terminals for connection to the circuit. Chip resistors have a wide range of resistance values, ranging from a few ohms to several megohms, and their accuracy and temperature coefficient can also be selected according to the needs of different applications. These characteristics make chip resistors suitable for a variety of electronic products, including consumer electronic devices, communication equipment, industrial control systems, and automotive electronic systems.

[0003] For example, a sheet resistor with the prior art announcement number CN221200826U, the utility model sets the length of the resistor alloy to be greater than the length of the plastic sealing layer, reduces the proportion of copper contributing to the resistance value, and reduces the product TCR; and the product has better temperature resistance and greater power, which can reach 7W and above.

[0004] However, the above-mentioned prior art still has the following problems when used: since the sheet resistor not only needs to be small in size but also needs to withstand high voltage in ultra-high voltage direct current transmission or UHV direct current transmission systems, the sheet resistor of ordinary length has low high voltage resistance. Based on this, the utility model provides a sheet serpentine resistor with good high voltage resistance. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a sheet-like serpentine resistor, which is composed of two first fixed plates, two second fixed plates, multiple mounting plates, and multiple serpentine resistor sheets to form a sheet-like serpentine resistor. Each serpentine resistor sheet is plugged into a slot through resistor blocks at both ends. The structure is simple and convenient for staff to disassemble, assemble and replace. At the same time, the arrangement of multiple serpentine resistor sheets can increase the resistance length, thereby meeting the high voltage requirements, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sheet-like serpentine resistor, comprising a frame, wherein the frame comprises two symmetrically distributed first fixing plates, second fixing plates are provided on both the front and rear sides of the two first fixing plates, a plurality of mounting plates are provided between the two second fixing plates, slots are provided on the inner walls of the two adjacent mounting plates close to the first fixing plates and on the inner walls of the two adjacent mounting plates close to the first fixing plates, a serpentine resistor sheet is provided between the two corresponding slots, resistor blocks are fixed at both ends of each serpentine resistor sheet, a plurality of resistor blocks are respectively inserted in a plurality of slots, a positioning block is fixed at both ends of each mounting plate, a plurality of positioning holes are provided on the outer walls of the two second fixing plates, and a plurality of positioning blocks are respectively inserted in the plurality of positioning holes.

[0007] In a preferred embodiment, a plurality of mounting plates are distributed in a linear array between the two first fixing plates, and a plurality of serpentine resistor sheets are distributed in a linear array on the mounting plates, so as to improve the high voltage resistance effect of the sheet-shaped serpentine resistor.

[0008] In a preferred embodiment, the front and rear ends of the two first fixing plates are provided with card slots, and the adjacent sides of the two second fixing plates are fixed with two card blocks, which are inserted into the card slots to connect the first fixing plate and the second fixing plate, and at the same time facilitate the staff to separate the first fixing plate and the second fixing plate.

[0009] In a preferred embodiment, the second fixing plate is fixed to the first fixing plate by a plurality of bolts, so that it is convenient for workers to disassemble and assemble the first fixing plate and the second fixing plate.

[0010] In a preferred embodiment, two receiving grooves are provided on the outer walls on both the front and rear sides of the two second fixing plates, and a plurality of bolts are respectively arranged in the plurality of receiving grooves to prevent the bolts from being exposed and affecting the appearance.

[0011] In a preferred embodiment, a dust plug for sealing the storage slot is inserted inside each storage slot, and the dust plug is arranged on the outside of the bolt. A shift block is fixed on the outer wall of each dust plug to facilitate the staff to remove the dust plug from the storage slot and then loosen the bolt for disassembly.

[0012] In a preferred embodiment, each serpentine resistor sheet and each resistor block are made of manganese-nickel alloy, which is a precision resistor alloy with high resistivity and low temperature coefficient. Therefore, the serpentine resistor sheet and resistor block have high resistivity and good use effect.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model comprises two first fixing plates, two second fixing plates, a plurality of mounting plates and a plurality of serpentine resistor sheets to form a sheet-shaped serpentine resistor. Each serpentine resistor sheet is plugged into a slot through resistor blocks at both ends. The structure is simple and convenient for staff to disassemble, assemble and replace. At the same time, the arrangement of a plurality of serpentine resistor sheets can increase the resistance length, thereby meeting the high voltage requirement.

[0015] 2. The second fixing plate and the first fixing plate are inserted together by using a plurality of clamping blocks and a plurality of clamping slots, and a plurality of bolts are used for reinforcement, so that it is convenient for workers to install and disassemble the first fixing plate and the second fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top view of the overall structure of the utility model;

[0018] Figure 3 This is a structural diagram of the mounting plate, the first fixing plate and the serpentine resistor sheet of the utility model;

[0019] Figure 4 This is a structural diagram of the first fixing plate and the second fixing plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the second fixing plate of the utility model.

[0021] The reference numerals are: 1, frame; 2, mounting plate; 3, slot; 4, serpentine resistor; 5, resistor block; 6, positioning block; 7, positioning hole; 8, slot; 9, block; 10, bolt; 11, storage slot; 12, dust plug; 13, shift block;

[0022] 101. A first fixing plate; 102. A second fixing plate. DETAILED DESCRIPTION

[0023] 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 only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Refer to the instruction manual Figure 1-5The utility model provides a sheet-like serpentine resistor, comprising a frame 1, wherein the frame 1 comprises two symmetrically distributed first fixing plates 101, second fixing plates 102 are arranged on both the front and rear sides of the two first fixing plates 101, a plurality of mounting plates 2 are arranged between the two second fixing plates 102, slots 3 are arranged on the inner wall of one side of two adjacent mounting plates 2 close to the first fixing plates 101, and on the inner wall of one side of two adjacent mounting plates 2 close to each other, a serpentine resistor sheet 4 is arranged between the two corresponding slots 3, resistor blocks 5 are fixedly arranged at both ends of each serpentine resistor sheet 4, and a plurality of resistor blocks 5 are respectively inserted into a plurality of slots 3;

[0025] Furthermore, a plurality of mounting plates 2 are distributed in a linear array between the two first fixing plates 101, and a plurality of serpentine resistor sheets 4 are distributed in a linear array on the mounting plates 2 to improve the high-voltage resistance effect of the sheet-shaped serpentine resistor. Positioning blocks 6 are fixedly provided at both ends of each mounting plate 2, and a plurality of positioning holes 7 are provided on the outer walls of the two second fixing plates 102, and the plurality of positioning blocks 6 are respectively inserted into the plurality of positioning holes 7;

[0026] Moreover, each serpentine resistor piece 4 and each resistor block 5 are made of manganese-nickel alloy, which is a precision resistor alloy with high resistivity and low temperature coefficient. Therefore, the serpentine resistor piece 4 and the resistor block 5 have high resistance and good use effect.

[0027] When in use, a sheet-like serpentine resistor is formed by two first fixed plates 101, two second fixed plates 102, multiple mounting plates 2, and multiple serpentine resistor sheets 4. Resistor blocks 5 are provided at both ends of each serpentine resistor sheet 4. The serpentine resistor sheet 4 is inserted into the slot 3 through the resistor blocks 5 at both ends, thereby completing the connection and fixation of the serpentine resistor sheet 4 with the mounting plate 2 and the first fixed plate 101. The structure is simple and it is very convenient to use. By setting multiple serpentine resistor sheets 4, the resistance length can be increased, thereby meeting the high voltage requirements.

[0028] Refer to the instruction manual Figure 1-5 , the front and rear ends of the two first fixing plates 101 are provided with card slots 8, and the two second fixing plates 102 are fixed with two card blocks 9 on the adjacent side. The card blocks 9 are inserted into the card slots 8 to connect the first fixing plate 101 and the second fixing plate 102, and at the same time facilitate the staff to separate the first fixing plate 101 and the second fixing plate 102;

[0029] In addition, the second fixing plate 102 is fixed to the first fixing plate 101 by a plurality of bolts 10, which is convenient for the staff to disassemble and assemble the first fixing plate 101 and the second fixing plate 102. The outer walls of the two second fixing plates 102 on both sides are provided with two receiving grooves 11, and the plurality of bolts 10 are respectively arranged in the plurality of receiving grooves 11, so as to avoid the bolts 10 being exposed and affecting the appearance;

[0030] Moreover, a dust plug 12 for sealing the storage groove 11 is inserted inside each storage groove 11 . The dust plug 12 is arranged on the outside of the bolt 10 . A shift block 13 is fixedly provided on the outer wall of each dust plug 12 , which is convenient for the staff to remove the dust plug 12 from the storage groove 11 .

[0031] The mounting plate 2 and the second fixing plate 102 are fixed together by plugging the positioning block 6 into the positioning hole 7, so as to facilitate the disassembly of the mounting plate 2 and the serpentine resistor 4, and the second fixing plate 102 and the first fixing plate 101 are plugged together by plugging a plurality of clamping blocks 9 into a plurality of clamping slots 8, and a plurality of bolts 10 are used for reinforcement, so as to greatly improve the firmness between the first fixing plate 101 and the second fixing plate 102.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A sheet-like serpentine resistor, comprising a frame (1), characterized in that: The frame (1) comprises two symmetrically distributed first fixing plates (101), second fixing plates (102) are provided on both the front and rear sides of the two first fixing plates (101), and a plurality of mounting plates (2) are provided between the two second fixing plates (102); Slots (3) are provided on the inner walls of one side of two adjacent mounting plates (2) close to the first fixing plate (101), and on the inner walls of one side of two adjacent mounting plates (2) close to each other, and a serpentine resistor sheet (4) is provided between two corresponding slots (3), and resistor blocks (5) are fixedly provided at both ends of each serpentine resistor sheet (4), and a plurality of resistor blocks (5) are respectively inserted into a plurality of slots (3); Positioning blocks (6) are fixedly provided at both the front and rear ends of each mounting plate (2), and the outer walls of the two second fixing plates (102) are provided with a plurality of positioning holes (7), and the plurality of positioning blocks (6) are respectively inserted into the plurality of positioning holes (7).

2. The sheet-shaped serpentine resistor according to claim 1, characterized in that: A plurality of mounting plates (2) are distributed in a linear array between two first fixing plates (101), and a plurality of serpentine resistor sheets (4) are distributed in a linear array on the mounting plates (2).

3. The sheet-shaped serpentine resistor according to claim 1, characterized in that: The front and rear ends of the two first fixing plates (101) are each provided with a card slot (8), and the adjacent sides of the two second fixing plates (102) are each provided with two card blocks (9), the card blocks (9) being inserted into the card slot (8) and used for connecting the first fixing plate (101) and the second fixing plate (102).

4. The sheet-shaped serpentine resistor according to claim 1, characterized in that: The second fixing plate (102) is fixed to the first fixing plate (101) via a plurality of bolts (10), thereby facilitating the disassembly and assembly of the first fixing plate (101) and the second fixing plate (102).

5. The sheet-shaped serpentine resistor according to claim 4, characterized in that: Two receiving grooves (11) are provided on the outer walls on both the front and rear sides of the two second fixing plates (102), and a plurality of bolts (10) are respectively arranged in the plurality of receiving grooves (11).

6. The sheet-shaped serpentine resistor according to claim 5, characterized in that: A dust plug (12) for sealing the receiving groove (11) is inserted into each receiving groove (11), the dust plug (12) is arranged outside the bolt (10), and a shifting block (13) is fixedly provided on the outer wall of each dust plug (12).

7. The sheet-shaped serpentine resistor according to claim 1, characterized in that: Each serpentine resistor sheet (4) and each resistor block (5) are made of manganese-nickel alloy.

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