AC power line durability test device

Abstract

The utility model discloses an AC power line durability testing device, which belongs to the technical field of AC power line durability testing and comprises a shell, a refrigeration cavity is arranged on one side in the shell, a heating cavity is arranged on the other side in the shell, a refrigeration all-in-one machine is mounted at the upper end of the shell corresponding to the refrigeration cavity, and a heating wire is mounted at the upper end of the heating cavity. The buffer assembly is arranged, the lower ends of the interiors of the refrigerating cavity and the heating cavity are connected with the object receiving box in a clamped mode, the object receiving box can receive a falling balancing weight, a damping rod, a buffer spring and a high-resilience sponge pad are matched, a good buffer effect can be achieved, and the situation that the shell is damaged due to collision is avoided; according to the utility model, the heat insulation assembly is arranged, the vacuum heat insulation plates are pasted and fixed on the inner walls of the refrigeration cavity and the heating cavity, the heat insulation effect can be achieved, the mutual influence of high and low temperatures is avoided, the dissipation of temperature can be reduced, and the protection cushions on the two sides of the vacuum heat insulation plates can perform unloading protection on the thrown-out power line.

Description

TECHNICAL FIELD

[0001] The utility model belongs to AC power line durability test technical field, specifically related to a kind of AC power line durability test device. BACKGROUND

[0002] Power line is the wire of transmission current.Usually the mode of current transmission is point-to-point transmission.Power line can be divided into AC power line and DC power line according to use.AC power line is usually made of high-voltage AC wire, and such wire needs to be standardized and safety certified before formal production.

[0003] Chinese patent application No.202221603973.0 discloses an AC power line durability test device, which comprises a shell, a support plate and an AC power line. A refrigeration cavity and a heating cavity are respectively formed on the left and right sides of the shell. A refrigeration all-in-one machine is fixedly connected to the top end of the refrigeration cavity by bolts. An electric heating wire is detachably installed on one side of the inner wall of the top end of the heating cavity. Fixed plates are fixedly connected to the middle of the inner walls of the top ends of the refrigeration cavity and the heating cavity by bolts. The bottom side of the fixed plate is welded with a first fixing ring. The combination of the fixed plate, the first fixing ring, the support plate, the connecting rod, the second fixing ring and the counterweight facilitates the fixed connection of the two ends of the AC power line, adjusts the weight of the counterweight, controls the tension received by the AC power line, and detects the tensile performance of the AC power line under low-temperature and high-temperature environments through the combination of the refrigeration cavity, the heating cavity, the refrigeration all-in-one machine and the electric heating wire.

[0004] In the above-mentioned disclosed patent, when testing the AC power line, the counterweight will fall and hit the shell if the power line breaks, causing damage to the shell. The refrigeration cavity and the heating cavity are respectively formed on the two sides of the shell, and heat insulation is needed to avoid temperature influence. Utility model content

[0005] To solve the problems raised in the above background, the utility model provides an AC power line durability test device, which has good buffering effect and convenient heat insulation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an AC power line durability test device, comprising a shell. A refrigeration cavity is formed on one side of the shell. A heating cavity is formed on the other side of the shell. A refrigeration all-in-one machine is installed on the shell corresponding to the refrigeration cavity. An electric heating wire is installed on the top end of the heating cavity. A first fixing ring is fixed on the inner top end of the refrigeration cavity and the heating cavity. A second fixing ring is arranged below the first fixing ring. A support plate is connected to the lower end of the second fixing ring. A counterweight is clamped on the upper end of the support plate. A buffering assembly is arranged on the inner lower end of the refrigeration cavity and the heating cavity. A heat insulation assembly is connected to the inner surface of the refrigeration cavity and the heating cavity.

[0007] Preferably, the buffer assembly comprises a mounting block, a receiving box, a buffer structure and a mounting slot, wherein the receiving box is arranged at the lower end inside the refrigeration cavity and the heating cavity, the buffer structure is arranged inside the receiving box, the mounting block is fixed at the lower end of the receiving box, and the mounting slot is arranged at the corresponding position of the shell.

[0008] Preferably, the buffer structure comprises a buffer plate, a damping rod and a buffer spring, wherein the buffer plate is arranged inside the receiving box, the damping rod is connected between the bottom of the buffer plate and the receiving box, and the buffer spring is sleeved on the surface of the damping rod.

[0009] Preferably, the buffer structure further comprises a protective soft pad and a high-rebound sponge pad, wherein the high-rebound sponge pad is attached to the upper end of the buffer plate, and the protective soft pad is wrapped on the outer surface of the high-rebound sponge pad.

[0010] Preferably, the heat insulation assembly comprises a vacuum heat insulation plate, a bonding layer and a protective plate, wherein the vacuum heat insulation plate is arranged on the inner surface of the refrigeration cavity and the heating cavity, the bonding layer is arranged between the vacuum heat insulation plate and the shell, and the protective plate is connected to the surface of the vacuum heat insulation plate.

[0011] Preferably, the heat insulation assembly further comprises an anti-collision soft pad and a wear-resistant rubber, wherein the anti-collision soft pad is arranged on the surface of the two sides of the protective plate, and the wear-resistant rubber is attached to the surface of the anti-collision soft pad.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The buffer assembly is arranged, the receiving box is clamped at the lower end inside the refrigeration cavity and the heating cavity, the buffer effect is good through cooperation of the damping rod, the buffer spring and the high-rebound sponge pad, and the shell is prevented from being damaged by impact.

[0014] 2、The heat insulation assembly is arranged, the vacuum heat insulation plate is fixed on the inner wall of the refrigeration cavity and the heating cavity, the heat insulation effect is good, the high and low temperatures are prevented from affecting each other, the temperature is reduced, and the power cord is prevented from being thrown out through the protective soft pad on the two sides of the vacuum heat insulation plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 It is a perspective view of the buffer assembly of the utility model;

[0018] Figure 4 It is a sectional view of the heat insulation assembly of the utility model;

[0019] In the diagram: 1. Shell; 2. Buffer assembly; 21. Mounting block; 22. Receiving box; 23. Buffer structure; 231. Protective pad; 232. High-resilience sponge pad; 233. Buffer plate; 234. Damping rod; 235. Buffer spring; 24. Mounting slot; 3. Thermal insulation assembly; 31. Vacuum thermal insulation plate; 32. Anti-collision pad; 33. Adhesive layer; 34. Protective plate; 35. Wear-resistant rubber; 4. Cooling chamber; 5. Heating chamber; 6. Counterweight; 7. Integrated cooling unit; 8. Second fixing ring; 9. Support plate; 10. Heating wire; 11. First fixing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figures 1-4 The present invention provides the following technical solution: an AC power cord durability testing device, comprising a housing 1, a cooling chamber 4 opened on one side inside the housing 1, a heating chamber 5 opened on the other side inside the housing 1, a cooling integrated unit 7 installed at the upper end of the housing 1 corresponding to the cooling chamber 4, an electric heating wire 10 installed at the upper end of the heating chamber 5, a first fixing ring 11 fixed at the upper end inside the cooling chamber 4 and the heating chamber 5, a second fixing ring 8 arranged below the first fixing ring 11, a support plate 9 connected to the lower end of the second fixing ring 8, a counterweight 6 snapped onto the upper end of the support plate 9, a buffer assembly 2 arranged at the lower end inside the cooling chamber 4 and the heating chamber 5, and a heat insulation assembly 3 connected to the inner surface of the cooling chamber 4 and the heating chamber 5.

[0023] Specifically, the buffer assembly 2 includes mounting blocks 21, a receiving box 22, a buffer structure 23, and mounting slots 24. The receiving box 22 is placed at the lower end of the cooling chamber 4 and the heating chamber 5. The buffer structure 23 is installed inside the receiving box 22. Mounting blocks 21 are fixed to both sides of the lower end of the receiving box 22. Mounting slots 24 are provided inside the housing 1 at positions corresponding to the mounting blocks 21.

[0024] By adopting the above technical solution, the mounting block 21 can be engaged with the mounting slot 24, allowing the receiving box 22 to be installed. When the power cord breaks, the counterweight 6 falls into the receiving box 22, and the buffer structure 23 plays a buffering role, thereby preventing damage to the shell 1.

[0025] Specifically, the buffer structure 23 includes a buffer plate 233, a damping rod 234, and a buffer spring 235. The buffer plate 233 is installed inside the receiving box 22, and the damping rod 234 is connected between the bottom of the buffer plate 233 and the receiving box 22. The buffer spring 235 is sleeved on the surface of the damping rod 234.

[0026] By adopting the above technical solution, when the counterweight 6 falls into the receiving box 22, the buffer plate 233 is subjected to force, and the damping rod 234 and the buffer spring 235 cooperate to achieve a good buffering effect.

[0027] Specifically, the cushioning structure 23 also includes a protective soft pad 231 and a high-resilience sponge pad 232. The high-resilience sponge pad 232 is attached to the upper end of the cushioning plate 233, and the outer surface of the high-resilience sponge pad 232 is covered with the protective soft pad 231.

[0028] By adopting the above technical solution, the upper end of the buffer plate 233 is connected to the high-resilience sponge pad 232, which can play a good buffering and protection role, and the protective soft pad 231 can protect the sponge pad.

[0029] In this embodiment, one end of the AC power cord is tied to the upper end of the first fixing ring 11 inside the housing 1, and the other end is tied to the surface of the second fixing ring 8. The counterweight 6 is placed on the upper end of the support plate 9, and the pressure on the power cord is adjusted. The integrated refrigeration unit 7 lowers the temperature inside the refrigeration chamber 4, and the heating wire 10 heats the inside of the heating chamber 5. This allows for testing the durability of the power cord under different temperature conditions. The mounting clip 21 engages with the mounting slot 24, allowing installation in the receiving box 22. When the power cord breaks, the counterweight 6 falls into the receiving box 22. The buffer structure 23 provides a buffering effect, thus preventing damage to the housing 1. When the counterweight 6 falls into the receiving box 22, the buffer plate 233 is subjected to force. The damping rod 234 and the buffer spring 235 work together to provide a good buffering effect. The upper end of the buffer plate 233 is connected to a high-resilience sponge pad 232, which provides good buffering protection. The protective pad 231 protects the sponge pad.

[0030] Example 2

[0031] The difference between this embodiment and Embodiment 1 is that the heat insulation component 3 includes a vacuum heat insulation plate 31, an adhesive layer 33, and a protective plate 34. The vacuum heat insulation plate 31 is disposed on the inner surface of the cooling chamber 4 and the heating chamber 5. An adhesive layer 33 is disposed between the vacuum heat insulation plate 31 and the housing 1. The protective plate 34 is connected to the surface of the vacuum heat insulation plate 31.

[0032] By adopting the above technical solution, the vacuum insulation plate 31 is fixed to the inner surface of the cooling chamber 4 and the heating chamber 5 by the adhesive layer 33, which can isolate the temperature and avoid the mutual influence of high and low temperatures. The protective plate 34 can protect the vacuum insulation plate 31 and prevent it from being damaged.

[0033] Specifically, the heat insulation component 3 also includes anti-collision pads 32 and wear-resistant rubber 35. Anti-collision pads 32 are provided on both sides of the protective plate 34, and wear-resistant rubber 35 is adhered to the surface of the anti-collision pads 32.

[0034] By adopting the above technical solution, the anti-collision pad 32 on the side surface of the protective plate 34 can buffer and unload the broken and thrown power line, and the wear-resistant rubber 35 can prevent the anti-collision pad 32 from being worn.

[0035] In this embodiment, the vacuum insulation plate 31 is fixed to the inner surfaces of the cooling chamber 4 and the heating chamber 5 by the adhesive layer 33, which can isolate the temperature and avoid the mutual influence of high and low temperatures. The protective plate 34 can protect the vacuum insulation plate 31 and prevent it from being damaged. The anti-collision soft pad 32 on the side surface of the protective plate 34 can buffer and relieve the force of the broken and thrown power cord. The wear-resistant rubber 35 can prevent the anti-collision soft pad 32 from being worn.

[0036] The structure and working principle of the integrated refrigeration unit 7 and the heating wire 10 in this utility model have been disclosed in an AC power cord durability testing device disclosed in Chinese patent application number 202221603973.0. The working principle of the integrated refrigeration unit 7 is to transfer the heat of the object being cooled at a lower temperature to the ambient medium to obtain cooling capacity. The working principle of the heating wire 10 is that the internal resistance of the metal wire generates heat when it is energized.

[0037] The working principle and usage process of this utility model are as follows: When using this utility model, one end of the AC power cord is tied to the upper end of the first fixing ring 11 inside the housing 1, and the other end is tied to the surface of the second fixing ring 8. The counterweight 6 is placed on the upper end of the support plate 9, and the pressure on the power cord is adjusted. The integrated refrigeration unit 7 lowers the temperature inside the refrigeration chamber 4, and the heating wire 10 heats the inside of the heating chamber 5. This allows for testing the durability of the power cord under different temperature conditions. The mounting clip 21 engages with the mounting slot 24, allowing installation in the receiving box 22. When the power cord breaks, the counterweight 6 falls into the receiving box 22, and the buffer structure 23 acts as a buffer, thus preventing damage to the housing 1. When the 6 falls into the receiving box 22, the buffer plate 233 is subjected to force. The damping rod 234 and the buffer spring 235 cooperate to achieve a good buffering effect. The upper end of the buffer plate 233 is connected to the high-resilience sponge pad 232, which can play a good buffering and protection role. The protective soft pad 231 can protect the sponge pad. The inner surfaces of the cooling chamber 4 and the heating chamber 5 are fixed with the vacuum insulation plate 31 by the adhesive layer 33, which can isolate the temperature and avoid the mutual influence of high and low temperatures. The protective plate 34 can protect the vacuum insulation plate 31 and prevent it from being damaged. The anti-collision soft pad 32 on the side surface of the protective plate 34 can buffer and relieve the force of the broken and thrown power cord. The wear-resistant rubber 35 can prevent the anti-collision soft pad 32 from being worn.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An AC power line endurance test device, comprising a shell (1), one side of the inside of the shell (1) is provided with a refrigeration cavity (4), the other side of the inside of the shell (1) is provided with a heating cavity (5), the upper end of the shell (1) is provided with a refrigeration all-in-one machine (7) at the corresponding position of the refrigeration cavity (4), the upper end of the heating cavity (5) is provided with an electric heating wire (10), the upper end of the inside of the refrigeration cavity (4) and the heating cavity (5) is fixed with a first fixed ring (11), the lower side of the first fixed ring (11) is provided with a second fixed ring (8), the lower end of the second fixed ring (8) is connected with a support plate (9), the upper end of the support plate (9) is clamped with a counterweight (6), characterized in that: The lower end of the refrigeration cavity (4) and the heating cavity (5) is provided with a buffer assembly (2), and the inner surface of the refrigeration cavity (4) and the heating cavity (5) is connected with a heat insulation assembly (3).

2. An AC power cord endurance testing device as set forth in claim 1, characterized in that: The buffer assembly (2) comprises a mounting clamping block (21), a receiving box (22), a buffer structure (23) and a mounting clamping groove (24), wherein the receiving box (22) is placed at the lower end of the refrigeration cavity (4) and the heating cavity (5), the buffer structure (23) is installed in the receiving box (22), the mounting clamping block (21) is fixed on both sides of the lower end of the receiving box (22), and the mounting clamping groove (24) is formed in the corresponding position of the mounting clamping block (21) in the shell (1).

3. An AC power cord endurance testing apparatus as defined in claim 2, wherein: The buffer structure (23) comprises a buffer plate (233), a damping rod (234) and a buffer spring (235), wherein the buffer plate (233) is arranged in the receiving box (22), the damping rod (234) is connected between the bottom of the buffer plate (233) and the receiving box (22), and the buffer spring (235) is sleeved on the surface of the damping rod (234).

4. An AC power cord endurance testing apparatus as defined in claim 3, wherein: The buffer structure (23) further comprises a protective soft pad (231) and a high-rebound sponge pad (232), wherein the high-rebound sponge pad (232) is attached to the upper end of the buffer plate (233), and the protective soft pad (231) is wrapped on the outer surface of the high-rebound sponge pad (232).

5. The AC power cord endurance testing apparatus of claim 1, wherein: The heat insulation assembly (3) comprises a vacuum heat insulation plate (31), a bonding layer (33) and a protective plate (34), wherein the vacuum heat insulation plate (31) is arranged on the inner surface of the refrigeration cavity (4) and the heating cavity (5), the bonding layer (33) is arranged between the vacuum heat insulation plate (31) and the shell (1), and the protective plate (34) is connected to the surface of the vacuum heat insulation plate (31).

6. An AC power cord endurance testing apparatus as defined in claim 5, wherein: The heat insulation assembly (3) further comprises an anti-collision soft pad (32) and a wear-resistant rubber (35), wherein the anti-collision soft pad (32) is arranged on the surface of the protective plate (34), and the wear-resistant rubber (35) is attached to the surface of the anti-collision soft pad (32).

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