Heat dissipation resistor with aluminum shell

Abstract

The utility model discloses a heat dissipation resistor with an aluminum shell, and particularly relates to the technical field of aluminum shell resistors, the heat dissipation resistor comprises a heat dissipation aluminum shell, a resistor inner core is arranged in the middle of the interior of the heat dissipation aluminum shell, two ends of the resistor inner core are respectively provided with a connecting end, and two ends of the heat dissipation aluminum shell are respectively provided with a protection mechanism; the protection mechanism comprises supporting seats symmetrically arranged at the two ends of the bottom side of the heat dissipation aluminum shell, two blocking seats are symmetrically fixed to the positions, close to the lower portions of the connecting ends, of the two ends of the tops of the supporting seats, and a limiting rod is fixedly connected between the two blocking seats. According to the utility model, the two groups of protective covers are symmetrically arranged, and under the cooperation of the movable block, the limiting rod, the first spring and other structures, the two adjacent protective covers can be tightly closed and cover the connecting end, and a wire can be led out through the wire arrangement hole, so that the connecting end can be shielded and protected under the action of the structure; damp rusting or dust falling and collecting are effectively avoided, and the safety and the stability are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum-cased resistor technology, specifically to an aluminum-cased heat dissipation resistor. Background Technology

[0002] Aluminum-cased resistors are common electronic components primarily used to convert electrical energy into heat energy, thereby enabling the regulation and control of current. They consist of an aluminum alloy casing, resistance wire, and filler. The casing surface has heat dissipation grooves. They are small in size but high in power, resistant to high temperatures, have strong overload capacity, and exhibit high precision and strong stability.

[0003] Currently, when using aluminum-cased heat dissipation resistors, the connection terminals are often connected to the wires by welding or threading. Regardless of the connection method, the connection terminals are often directly exposed, resulting in poor safety protection. Extensive exposure makes them prone to moisture, rust, or dust accumulation, affecting safety and stability. Utility Model Content

[0004] The purpose of this utility model is to provide an aluminum-cased heat dissipation resistor. By symmetrically arranging two sets of protective covers, and with the cooperation of structures such as movable blocks, limiting rods, and first springs, the two adjacent protective covers can be tightly closed and cover the connection end. Wires can be led out through the wiring hole. Under the action of this structure, the connection end can be shielded and protected, effectively avoiding moisture and rust or dust accumulation, greatly improving safety and stability, and solving the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum-cased heat dissipation resistor, comprising:

[0006] A heat-dissipating aluminum shell, wherein a resistor core is provided in the middle of the interior of the heat-dissipating aluminum shell, and both ends of the resistor core are provided with connection terminals, and both ends of the heat-dissipating aluminum shell are provided with protective mechanisms.

[0007] The protective mechanism includes support seats symmetrically arranged at both ends of the bottom side of the heat dissipation aluminum shell. Two stops are symmetrically fixed at the top ends of the support seats near the lower part of the connecting end. A limit rod is fixedly connected between the two stops. Two movable blocks are symmetrically sleeved in the middle of the limit rod, and a first spring is sleeved at both ends of the limit rod. One end of the first spring is fixedly connected to the movable block, and the other end of the first spring is fixedly connected to the stop. Protective covers are symmetrically arranged at the top of the two movable blocks. The connecting end is located between the two protective covers, and cable routing holes are symmetrically arranged at the ends of the two protective covers.

[0008] Preferably, the bottom of the heat dissipation aluminum shell is symmetrically provided with fixing plates on both sides, and the side walls of the fixing plates are provided with fixing holes.

[0009] Preferably, the outer side of the heat dissipation aluminum shell is provided with multiple heat dissipation fins.

[0010] Preferably, the bottom ends of both movable blocks are fixed with sliders, and the top side of the support base is provided with a groove that matches the slider.

[0011] Preferably, the bottom sides of the two protective covers are symmetrically provided with through holes, and a guide rod is connected through the through holes. A wire harness assembly is provided on the guide rod and inside the protective cover.

[0012] Preferably, the wire harness assembly includes a first fixing block fixed to the top of the guide rod, and a second fixing block is fixed to one end of the guide rod below the first fixing block. A pressure ring is sleeved on the outside of the guide rod between the first fixing block and the second fixing block, and a second spring is connected between the pressure ring and the second fixing block and outside the guide rod.

[0013] Preferably, the protective cover has an end opening at one end relative to the cable hole.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] By symmetrically setting two sets of protective covers, and with the cooperation of structures such as movable blocks, limit rods and first springs, the two adjacent protective covers can be tightly closed and cover the connection end. The wires can be led out through the wiring hole. Under the action of this structure, the connection end can be shielded and protected, effectively preventing moisture and rust or dust accumulation, and greatly improving safety and stability.

[0016] By setting a guide rod and a wire harness assembly inside the protective cover, the wire harness assembly consists of a first fixing block, a second fixing block, a pressure ring, and a second spring. When the wire is connected to the connection end, the wire can be wrapped and pressed between the first fixing block and the pressure ring on the guide rod, thereby further binding the wire and greatly improving the stability of the connection between the wire and the connection end. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective cover of this utility model;

[0020] Figure 3This is a three-dimensional structural diagram of the protective cover of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the guide rod and the pressure ring of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection between the support base and the movable block of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Resistor core; 2. Heat dissipation aluminum shell; 3. Heat dissipation fins; 4. Fixing plate; 5. Connecting end; 6. Support base; 7. Protective cover; 8. Cable routing hole; 9. Stop; 10. Limiting rod; 11. First spring; 12. Movable block; 13. Slider; 14. Slide groove; 15. Through hole; 16. Guide rod; 17. First fixing block; 18. Second fixing block; 19. Second spring; 20. Pressure ring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figures 1-5 The aluminum-cased heat dissipation resistor shown includes:

[0027] The heat dissipation aluminum shell 2 has a resistor core 1 in the middle inside the heat dissipation aluminum shell 2. Both ends of the resistor core 1 are provided with connection terminals 5. Both ends of the heat dissipation aluminum shell 2 are provided with protective mechanisms.

[0028] The bottom of the heat dissipation aluminum shell 2 is symmetrically provided with fixing plates 4 on both sides, and fixing holes are provided on the side walls of the fixing plates 4. Based on this, the fixing plates 4 and fixing holes facilitate the installation and fixing of the device.

[0029] Multiple heat dissipation fins 3 are provided on the outer side of the heat dissipation aluminum shell 2. The heat dissipation fins 3 further improve the heat dissipation performance of the heat dissipation aluminum shell 2.

[0030] The protective mechanism includes support seats 6 symmetrically arranged at both ends of the bottom side of the heat dissipation aluminum shell 2. Two stops 9 are symmetrically fixed at the top ends of the support seats 6 near the lower part of the connecting end 5. A limit rod 10 is fixedly connected between the two stops 9. Two movable blocks 12 are symmetrically sleeved in the middle of the limit rod 10. A first spring 11 is sleeved at both ends of the limit rod 10. One end of the first spring 11 is fixedly connected to the movable block 12, and the other end of the first spring 11 is fixedly connected to the stop 9. Protective covers 7 are symmetrically arranged at the top of the two movable blocks 12. The connecting end 5 is located between the two protective covers 7, and cable routing holes 8 are symmetrically arranged at the ends of the two protective covers 7.

[0031] The protective cover 7 has an end opening at one end relative to the cable hole 8.

[0032] By symmetrically setting two protective covers 7 at both ends of the heat dissipation aluminum shell 2, when in use, the two adjacent protective covers 7 can be pulled, and the protective covers 7 can drive the movable block 12 to slide on the limit rod 10, so that the movable block 12 and the stop seat 9 can press the first spring 11, causing the two protective covers 7 to separate to expose the connection end 5. Then the wire can be connected to the connection end 5. After the protective covers 7 are released, under the rebound of the first spring 11, the movable block 12 can drive the two protective covers 7 to quickly merge to cover the connection end 5, and the wire can be led out through the cable hole 8. Under the action of this structure, the connection end can be shielded and protected, effectively avoiding moisture and rust or dust accumulation, and greatly improving safety and stability.

[0033] Both movable blocks 12 have sliders 13 fixed to their bottom ends, and the top side of the support base 6 has a groove 14 that matches the sliders 13. By setting the sliders 13 and the grooves 14, the movable block 12 can drive the sliders 13 to slide within the grooves 14, thereby greatly ensuring the stability of the movable block 12 when it moves.

[0034] In one specific embodiment of this utility model, two protective covers 7 are symmetrically provided with through holes 15 on their bottom sides, and a guide rod 16 is connected through the through hole 15. A wire harness assembly is provided on the guide rod 16 and inside the protective cover 7.

[0035] The cable harness assembly includes a first fixing block 17 fixed to the top of the guide rod 16, and a second fixing block 18 fixed to one end of the guide rod 16 below the first fixing block 17. A pressure ring 20 is sleeved on the outside of the guide rod 16 between the first fixing block 17 and the second fixing block 18. A second spring 19 is connected between the pressure ring 20 and the second fixing block 18 and outside the guide rod 16.

[0036] When the wire is connected to the connecting end 5, the wire can also be wound around the guide rod 16. By pulling the pressure ring 20, it can be moved down and squeeze the second spring 19. Then the wire can be wound between the first fixing block 17 and the second fixing block 18. Afterwards, under the elastic action of the second spring 19, the pressure ring 20 can be reset and press the wire upward, thereby pressing the wire between the first fixing block 17 and the pressure ring 20 on the guide rod 16, which can further bind the wire and greatly improve the stability of the connection between the wire and the connecting end 5.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat dissipation resistor with an aluminum casing, characterized in that, include: A heat dissipation aluminum shell (2) has a resistor core (1) in the middle inside the heat dissipation aluminum shell (2), and both ends of the resistor core (1) are provided with connection terminals (5). Both ends of the heat dissipation aluminum shell (2) are provided with protective mechanisms. The protective mechanism includes support seats (6) symmetrically arranged at both ends of the bottom side of the heat dissipation aluminum shell (2). Two stops (9) are symmetrically fixed at the top ends of the support seats (6) near the bottom of the connecting end (5). A limit rod (10) is fixedly connected between the two stops (9). Two movable blocks (12) are symmetrically sleeved in the middle of the limit rod (10). A first spring (11) is sleeved at both ends of the limit rod (10). One end of the first spring (11) is fixedly connected to the movable block (12), and the other end of the first spring (11) is fixedly connected to the stop (9). A protective cover (7) is symmetrically arranged at the top of the two movable blocks (12). The connecting end (5) is located between the two protective covers (7), and the ends of the two protective covers (7) are symmetrically provided with cable routing holes (8).

2. The aluminum-cased heat dissipation resistor according to claim 1, characterized in that: The bottom of the heat dissipation aluminum shell (2) is symmetrically provided with fixing plates (4), and the side wall of the fixing plate (4) is provided with fixing holes.

3. The aluminum-cased heat dissipation resistor according to claim 1, characterized in that: The outer side of the heat dissipation aluminum shell (2) is provided with multiple heat dissipation fins (3).

4. The aluminum-cased heat dissipation resistor according to claim 1, characterized in that: The bottom ends of the two movable blocks (12) are fixed with sliders (13), and the top side of the support base (6) is provided with a groove (14) that matches the slider (13).

5. The aluminum-cased heat dissipation resistor according to claim 1, characterized in that: Two protective covers (7) are symmetrically provided with through holes (15) on their bottom sides. A guide rod (16) is connected through the through hole (15). A wire harness assembly is provided on the guide rod (16) and inside the protective cover (7).

6. The aluminum-cased heat dissipation resistor according to claim 5, characterized in that: The wire harness assembly includes a first fixing block (17) fixed to the top of the guide rod (16), and a second fixing block (18) fixed at one end of the guide rod (16) below the first fixing block (17). A pressure ring (20) is sleeved on the outside of the guide rod (16) between the first fixing block (17) and the second fixing block (18). A second spring (19) is connected between the pressure ring (20) and the second fixing block (18) and outside the guide rod (16).

7. The aluminum-cased heat dissipation resistor according to claim 1, characterized in that: The protective cover (7) has an end opening at one end relative to the cable hole (8).

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