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Small mobile portable load resistor

A load resistance, portable technology, applied in the direction of resistors, resistor parts, resistor shells/packaging shells/potting, etc., can solve the problems of damage to wires and wires, skin melting and open circuit of small wires, achieve the effect of low temperature

Pending Publication Date: 2021-05-28
周俊杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A resistor is a current-limiting element, mainly used to limit the current in the circuit to make it smaller. The size and resistance value of resistors made of different materials are also different. Small resistors are usually composed of two wires. It is composed of a resistance block connected in series with the top of the foot. It is portable and is often used in small circuits with low current. However, when the current flows through the resistor, it is limited by its small shape, so it will Concentrated heat generation, the higher the resistance value, the greater the heat generated. If the resistance block of the resistor touches a small wire in the circuit, it is easy to cause the skin of the small wire to be melted due to excessive temperature, and then Risk of breaking the wires inside the wires, causing an open circuit

Method used

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  • Small mobile portable load resistor
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specific Embodiment

[0024] see Figure 1-Figure 5 , the specific embodiments of the present invention are as follows: a small mobile portable load resistor, its structure includes a joint 1, a fixed frame 2, a resistance block 3, the top surface of the joint 1 is welded to the bottom surface of the fixed frame 2, and the resistance block 3 The two ends are embedded and connected with the top of the fixed frame 2; the resistance block 3 includes a casing 31, a connection plate 32, a resistance column 33, and a heat expansion ring 34, and the connection plate 32 is embedded in the left side of the casing 31, and the resistance The left side of the column 33 is welded to the right side of the connecting plate 32. The heat expansion ring 34 is sleeved on the outer ring of the resistance column 33. There are three heat expansion rings 34, and the three heat expansion rings 34 are evenly sleeved on the The outer ring of the resistance column 33 is beneficial to enhance the heat dissipation effect.

[...

Embodiment 2

[0030] see Figure 6-Figure 7 The specific embodiment of the present invention is as follows: the expansion plate A25 includes an inner shaft B1, a threaded ring B2, a contact plate B3, a heat absorption groove B4, and a cooling block B5, and the inner ring of the threaded ring B2 is sleeved on the outer ring of the inner shaft B1 , the top surface of the contact plate B23 is embedded in the outer ring of the threaded ring B2, the heat-absorbing groove B4 and the outer layer of the contact plate B3 are integrated, the cooling block B5 is embedded in the inner layer of the contact plate B3, and the heat-absorbing groove B4 is integrally formed with the outer layer of the contact plate B3. There are multiple heat sinks B4, and the gaps between the multiple heat sinks B4 are evenly distributed on the outer layer of the contact plate B3, which is beneficial to increase the range of heat absorption.

[0031] Wherein, the cooling block B5 includes a connecting plate B51, a chuck B52...

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Abstract

The invention discloses a small mobile portable load resistor, which structurally comprises a joint, a fixing frame and a resistor block, wherein the top face of the joint is welded to the bottom face of the fixing frame, the two ends of the resistor block are fixedly connected with the top end of the fixing frame in an embedded mode, the resistor block comprises a sleeve shell, a connecting plate, a resistor column and heat diffusionrings, the connecting plate is embedded into the left side of the sleeve shell, and the left side of the resistor column is connected with the right side of the connecting plate in a welded mode. According to the invention, heat diffusion is carried out through a plurality of heat diffusion rings arranged on a resistor block, heat absorption is carried out through heat absorption rings when a large amount of heat is generated when a resistor column works, the large amount of heat is dissipated to the heat dissipation column, an expansion block is heated to shrink to expand an expansion structure so as to make a large amount of radiated heat enter a cooling block through a heat absorption groove, and dry ice in a cold air bag is sublimated while a large amount of heat is absorbed, so that the temperature of the resistor block is kept relatively low, and the phenomenon that the electric wire is burnt and broken due to the fact that the too high resistance block touches other small electric wires in the circuit board is avoided.

Description

technical field [0001] The invention relates to the field of resistors, in particular to a small mobile and portable load resistor. Background technique [0002] A resistor is a current-limiting element, mainly used to limit the current in the circuit to make it smaller. The size and resistance value of resistors made of different materials are also different. Small resistors are usually composed of two wires. It is composed of a resistance block connected in series with the top of the foot. It is portable and is often used in small circuits with low current. However, when the current flows through the resistor, it is limited by its small shape, so it will Concentrated heat generation, the higher the resistance value, the greater the heat generated. If the resistance block of the resistor touches a small wire in the circuit, it is easy to cause the skin of the small wire to be melted due to excessive temperature, and then Breaks the wire filaments inside the wire, causing a...

Claims

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Application Information

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IPC IPC(8): H01C1/02H01C1/084
CPCH01C1/02H01C1/084
Inventor 周俊杰
Owner 周俊杰
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