Load resistor with buffer protection function

Abstract

The utility model relates to a kind of load resistor with buffer protection function, including: mounting plate, its both ends are respectively provided with locating plate, locating plate four corners are all provided with guide hole, guide hole inside is fixedly provided with connecting sleeve, the inside of connecting sleeve is provided with spiral pipe, the inside of spiral pipe is provided with connecting wire.The utility model relates to the technical field of load resistor.A kind of load resistor with buffer protection function, mechanical impact force generated when equipment runs, resulting in the overall slippage of resistance rod, connecting wire will be unfolded along with the movement of resistance rod, while spiral pipe is stretched, after vibration gradually reduces, resistance rod resets, and by the elastic deformation characteristics of spiral pipe, connecting wire is again dragged to shrink, so that connecting wire can move along with resistance rod in the process of impact, avoid the problem that connecting wire and resistance rod connection fall off due to resistance rod movement.

Description

Technical Field

[0001] This utility model relates to the technical field of load resistors, and in particular to a load resistor with buffer protection function. Background Technology

[0002] Load resistors are also known as discharge resistors, braking resistors, braking resistors, and absorption resistors due to their special function. These resistors have high power and are generally non-inductive power resistors. Non-inductive value and ultra-low inductive value are important requirements for these products. They are used to absorb power and discharge excess electricity.

[0003] Most load resistors do not have good shock absorption performance, which means that the device cannot be buffered in time after being subjected to impact, which will cause damage to the electronic components of the device and result in economic losses.

[0004] In existing technologies, most methods involve adding a buffer component to the load resistor to make it move after being impacted, thus achieving a pressure relief effect. However, during the movement of the load resistor, a large tensile force is applied to the connection of the wires, which can easily lead to the problem of the circuit breaking. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a load resistor with buffer protection function, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A load resistor with buffer protection function includes:

[0008] The mounting plate has positioning plates at both ends. Guide holes are provided at the four corners of the positioning plates. Connecting sleeves are fixedly installed inside the guide holes. Spiral tubes are installed inside the connecting sleeves. Connecting wires are installed inside the spiral tubes. The spiral tubes are elastically designed.

[0009] A sliding shaft is fixedly installed at the center of the connecting sleeve, and a support rod is slidably installed at the bottom end of the sliding shaft. A resistance rod is installed between two opposing support rods.

[0010] The top of the mounting plate is equipped with a support assembly for supporting the resistor rod.

[0011] Furthermore, a support spring is provided inside the support rod, and the top end of the support spring is fixedly connected to the top end of the sliding shaft.

[0012] Furthermore, one end of the connecting wire is provided with a connecting connector, and the other end of the connecting wire is fixedly connected to one end of the resistance rod.

[0013] Furthermore, the support component includes:

[0014] The top platform is fixedly connected to the end of the positioning plate facing the heat sink, and the upper end of the top platform is arc-shaped.

[0015] The elastic plate has mounting holes at all four corners. The support rod is inserted into the mounting holes, and the ends of the elastic plate and the resistance rod are in contact with each other.

[0016] Furthermore, several heat sinks are provided together among the four resistor rods, and the surface of the heat sinks has multiple grooves.

[0017] Furthermore, the positioning plate has support plates at both ends of its back side, and the support plates have two bolt holes inside for mounting the positioning plate.

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] 1. This load resistor with buffer protection function, when the mechanical impact force generated during equipment operation causes the entire resistance rod to slip, the connecting wire will unfold with the movement of the resistance rod, and the spiral tube will be stretched at the same time. After the vibration gradually decreases, the resistance rod returns to its original position, and the elastic deformation characteristics of the spiral tube drag the connecting wire to contract again, so that the connecting wire can move with the resistance rod during the impact process, avoiding the problem of the connecting wire falling off the resistance rod due to the movement of the resistance rod;

[0020] 2. This load resistor with buffer protection function has an elastic plate that slides with the support rod through a mounting hole. Its arc-shaped top platform contacts the end of the resistance rod. When the resistance rod is displaced due to vibration or impact, the elastic plate undergoes elastic deformation, allowing the resistance rod to move slightly in the axial direction, thus avoiding stress concentration. The material of the elastic plate has both insulation and buffering functions, improving safety. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a load resistor with buffer protection function according to the present invention.

[0023] Figure 2 This is a schematic diagram of the mounting plate and positioning plate of a load resistor with buffer protection function according to the present invention.

[0024] Figure 3 This is a schematic diagram of the resistance rod and heat sink of a load resistor with buffer protection function according to this utility model.

[0025] Figure 4 This is a schematic diagram of the connection sleeve of a load resistor with buffer protection function according to the present invention.

[0026] In the diagram, 1. Mounting plate; 2. Positioning plate; 3. Guide hole; 4. Connecting sleeve; 5. Spiral tube; 6. Connecting wire; 7. Sliding shaft; 8. Support rod; 9. Resistance rod; 10. Support assembly; 101. Top platform; 102. Elastic plate; 11. Connecting joint; 12. Heat sink; 13. Bracket plate; 14. Bolt hole. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example:

[0029] Reference Figure 1 - Figure 4 The present invention discloses a load resistor with buffer protection function, comprising:

[0030] Mounting plate 1, with positioning plates 2 at both ends, and guide holes 3 at the four corners of the positioning plate 2. A connecting sleeve 4 is fixedly installed inside the guide hole 3, a spiral tube 5 is installed inside the connecting sleeve 4, and a connecting wire 6 is installed inside the spiral tube 5. The spiral tube 5 is elastically set.

[0031] A sliding shaft 7 is fixedly installed at the center of the connecting sleeve 4. A support rod 8 is slidably installed at the bottom end of the sliding shaft 7. A resistance rod 9 is installed between two opposing support rods 8.

[0032] The top of the mounting plate 1 is provided with a support component 10 for supporting the resistor rod 9.

[0033] In this embodiment, when the mechanical impact force generated during equipment operation is transmitted to the resistance rods 9 through the mounting plate 1 and the positioning plate 2, the four resistance rods 9 slide as a whole. At this time, the connecting wires 6 set inside the spiral tube 5 will unfold along with the movement of the resistance rods 9, and the spiral tube 5 will be stretched. After the vibration gradually decreases, the resistance rods 9 return to their original position, and the elastic deformation characteristics of the spiral tube 5 will drag the connecting wires 6 to contract again, so that the connecting wires 6 can move with the resistance rods 9 during the impact process, avoiding the problem of the connecting wires 6 becoming detached from the resistance rods 9 due to the movement of the resistance rods 9.

[0034] The limiting design of the connecting sleeve 4 ensures that the spiral tube 5 deforms only in the axial direction of the guide hole 3, avoiding lateral displacement that could lead to structural failure.

[0035] The guiding function of the sliding shaft 7 ensures that the support rod 8 always moves along the axial direction, keeping the resistance rod 9 parallel to the mounting plate 1, avoiding fluctuations in electrical parameters caused by vibration offset, and the support assembly 10 further isolates residual vibration.

[0036] In a further preferred embodiment of this utility model, such as Figure 3 As shown, a support spring is provided inside the support rod 8, and the top end of the support spring is fixedly connected to the top end of the sliding shaft 7.

[0037] In this embodiment, the support spring is disposed inside the support rod 8, with its top end fixedly connected to the sliding shaft 7 and its bottom end abutting against the support rod 8. When the resistance rod 9 is displaced due to vibration or impact, the support spring absorbs kinetic energy through elastic deformation, pulls the support rod 8 back to its initial position, maintains the stability of the resistance rod 9, effectively suppresses the transmission of mechanical vibration to the resistance rod 9, and avoids fatigue fracture of the internal structure due to continuous shaking; at the same time, the reciprocating motion of the spring disperses the instantaneous impact force, extending the service life of the device.

[0038] In a further preferred embodiment of this utility model, such as Figure 1 As shown, one end of the connecting wire 6 is provided with a connecting connector 11, and the other end of the connecting wire 6 is fixedly connected to one end of the resistance rod 9.

[0039] In this embodiment, the connector 11 adopts a threaded or snap-fit ​​structure and is detachably connected to the end of the connecting wire 6 inside the spiral tube 5. When it is necessary to replace or maintain the resistor, the circuit can be disconnected by rotating or pressing the connector without resoldering the wire.

[0040] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the support component 10 includes:

[0041] The top platform 101 is fixedly connected to the end of the positioning plate 2 facing the heat sink 12, and the upper end of the top platform 101 is arc-shaped.

[0042] The elastic plate 102 has mounting holes at its four corners. The support rod 8 is inserted into the mounting holes, and the elastic plate 102 is in contact with the end of the resistance rod 9.

[0043] In this embodiment, the elastic plate 102 is slidably engaged with the support rod 8 through the mounting hole, and its arc-shaped top platform 101 is in contact with the end of the resistance rod 9. When the resistance rod 9 is displaced due to vibration or impact, the elastic plate 102 undergoes elastic deformation, allowing the resistance rod 9 to move slightly in the axial direction, thus avoiding stress concentration. The material of the elastic plate 102 is selected to have both insulation and buffering functions, thereby improving safety.

[0044] In a further preferred embodiment of this utility model, such as Figure 3 As shown, several heat sinks 12 are arranged together among the four resistor rods 9, and the surface of the heat sinks 12 is provided with multiple grooves.

[0045] In this embodiment, multiple heat sinks 12 are distributed in parallel between the resistor rods 9. The surface grooves increase the contact area with air. During operation, the heat of the resistor rods 9 is conducted to the heat sinks 12, and the turbulence formed by the grooves accelerates air convection, thereby achieving efficient heat dissipation.

[0046] In a further preferred embodiment of this utility model, such as Figure 1 As shown, the positioning plate 2 has support plates 13 at both ends of its back side, and the support plates 13 have two bolt holes 14 inside for mounting the positioning plate 2.

[0047] In this embodiment, the bracket plate 13 is rigidly connected to the back side of the positioning plate 2 through the bolt holes 14 to form a triangular support structure. During installation, the bolts fix the bracket plate 13 to the equipment base, distributing the weight of the resistor and the vibration load.

[0048] The implementation principle of the above embodiment is as follows: When the mechanical impact force generated during the operation of the equipment is transmitted to the resistance rod 9 through the mounting plate 1 and the positioning plate 2, the four resistance rods 9 slide axially under the guidance of the support rod 8, and the connecting wire 6 inside the spiral tube 5 unfolds and stretches accordingly. The elastic deformation characteristics of the spiral tube 5 are used to drive the resistance rod 9 to reset after the vibration is weakened, so as to prevent the connecting wire 6 from falling off.

[0049] The support spring inside the support rod 8 absorbs kinetic energy and suppresses vibration transmission, while the elastic plate 102 alleviates stress concentration through deformation.

[0050] The grooves on the surface of the heat sink 12 enhance air convection to achieve efficient heat dissipation, while the support structure of the elastic plate 102 distributes the load. The overall design with multiple buffers and guides ensures stable operation of the resistor 9 and extends the life of the device.

[0051] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A load resistor with buffer protection function, characterized in that, Including: Mounting plate (1), with positioning plates (2) at both ends respectively. Guide holes (3) are provided at the four corners of the positioning plate (2). A connecting sleeve (4) is fixedly installed inside the guide hole (3). A spiral tube (5) is installed inside the connecting sleeve (4). A connecting wire (6) is installed inside the spiral tube (5). The spiral tube (5) is elastically set. A sliding shaft (7) is fixedly installed at the center of the connecting sleeve (4), and a support rod (8) is slidably installed at the bottom end of the sliding shaft (7). A resistance rod (9) is installed between the two opposing support rods (8). The top of the mounting plate (1) is provided with a support assembly (10) for supporting the resistor rod (9).

2. A load resistor with buffer protection function according to claim 1, characterized in that, The support rod (8) is equipped with a support spring inside, and the top end of the support spring is fixedly connected to the top end of the sliding shaft (7).

3. A load resistor with buffer protection function according to claim 2, characterized in that, One end of the connecting wire (6) is provided with a connecting connector (11), and the other end of the connecting wire (6) is fixedly connected to one end of the resistance rod (9).

4. A load resistor with buffer protection function according to claim 3, characterized in that, The support component (10) includes: The top platform (101) is fixedly connected to the end of the positioning plate (2) facing the heat sink (12), and the upper end of the top platform (101) is arc-shaped. The elastic plate (102) has mounting holes at its four corners. The support rod (8) is inserted into the mounting holes, and the ends of the elastic plate (102) and the resistance rod (9) are in contact with each other.

5. A load resistor with buffer protection function according to claim 4, characterized in that, Several heat sinks (12) are arranged together among the four resistors (9), and the surface of the heat sinks (12) is provided with multiple grooves.

6. A load resistor with buffer protection function according to claim 5, characterized in that, The positioning plate (2) has support plates (13) at both ends of its back side. The support plates (13) have two bolt holes (14) inside for mounting the positioning plate (2).

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