Novel cable detection temperature control device

Abstract

The utility model belongs to cable detection technical field especially relates to a novel cable detection temperature control equipment, including the heat storage device that is used for wrapping cable by heat storage cabin and auxiliary cabin, the auxiliary cabin is installed in the top of heat storage cabin through clamping device opening and closing, the outside of heat storage cabin and auxiliary cabin still is equipped with the water cooling device for cooling phase change filler, the heat storage cavity in heat storage cabin and auxiliary cabin all fills the phase change filler, heat storage cabin and auxiliary cabin still are equipped with temperature control flow channel respectively, both ends of temperature control flow channel all are welded and have the quick -action water nozzle, and still fixedly installed on auxiliary cabin have the support frame that passes through the cylinder main body drive. The novel cable detection temperature control equipment, through the temperature change platform period characteristics that appears in the phase change process of phase change filler that utilizes the phase change material that encapsulates in heat storage cabin and auxiliary cabin, has realized the constant temperature environment of keeping test process under the condition of not immersing cable in oil, has guaranteed the temperature of the cable to be measured stable, has guaranteed the neatness of cable after testing.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, and in particular to a novel cable testing temperature control device. Background Technology

[0002] Wires and cables are electrical products used to transmit electrical energy, transmit information, and realize electromagnetic energy conversion. They are widely used in many fields such as power, communication, construction, transportation, and industrial automation.

[0003] The DC resistance of electrical wires and cables must be compared to the conductor resistance per kilometer. The measured DC resistance data needs to be converted to a DC resistance value per kilometer at 20°C. Typically, each kilometer of cable is divided into several sections for testing. The measured DC resistance values ​​are summed to obtain the DC resistance value at 20°C. If this value is less than the specified value, the electrical wire and cable sample is considered a qualified product; otherwise, it is considered a substandard product. Maintaining a stable cable temperature of 20°C is a crucial factor affecting cable testing.

[0004] Current methods for ensuring constant temperature during cable testing primarily rely on oil baths, where the cable is immersed in a temperature-controlled oil bath for measurement. However, this approach presents the following problems in practical operation:

[0005] 1) During the testing process, the cable needs to be immersed in a constant temperature oil bath. After being immersed for a long time, the oil stains on the cable are difficult to clean.

[0006] 2) Furthermore, heating via an oil bath is inefficient, with a slow temperature rise, making it difficult to quickly reach the set temperature. This results in excessive preparation time before testing, which affects testing efficiency. Utility Model Content

[0007] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0008] Specifically, the technical problem to be solved by this utility model is to provide a new type of cable testing temperature control device to solve the two major problems existing in the current oil bath heating during cable testing: first, the oil stains are difficult to clean after the cable is soaked; second, the heating efficiency is low, the temperature rise is slow, the preparation time is long, which affects the testing efficiency.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0010] A novel cable testing and temperature control device includes a heat storage device consisting of a heat storage chamber and an auxiliary chamber for wrapping the cable. The auxiliary chamber is installed above the heat storage chamber by a clamping device. A water cooling device for cooling the phase change filler is also provided on the outside of the heat storage chamber and the auxiliary chamber.

[0011] A heat storage chamber is provided between the heat storage chamber and the auxiliary chamber. The heat storage chamber in the heat storage chamber and the auxiliary chamber are filled with phase change filler. A heat-conducting pad is provided on the heat storage chamber and the auxiliary chamber. Temperature control channels are also provided in the heat storage chamber and the auxiliary chamber along their axial direction. Quick-connect water nozzles are welded to both ends of the temperature control channels. Metal hoses are installed on the temperature control channels through the quick-connect water nozzles. The temperature control channels are connected to the water cooling device through the metal hoses.

[0012] The clamping device includes a support body symmetrically distributed below the thermal storage chamber, and a support frame driven by a cylinder body is also fixedly installed on the auxiliary chamber.

[0013] As an improved technical solution, the inner sides of both the thermal storage chamber and the auxiliary chamber are provided with arc-shaped grooves adapted to the cables, and the thermal conductive pads are respectively attached to the arc-shaped grooves of the thermal storage chamber and the auxiliary chamber by rivets.

[0014] As an improved technical solution, the water cooling device includes a constant temperature refrigeration box filled with coolant. The constant temperature refrigeration box is provided with a liquid inlet for installing a three-way connector, and the liquid inlet is connected to a corresponding metal hose through a quick-connect fitting.

[0015] As an improved technical solution, the support body is vertically distributed below the thermal storage chamber, and an L-shaped support side rod is fixedly installed on the support body. A side rod cap for limiting the support frame is fixedly installed at the end of the support side rod away from the support body.

[0016] As an improved technical solution, the support frame has sliding grooves on both sides, and a slider adapted to the sliding groove is slidably connected to the support frame. The slider is located below the top cap of the side rod, and the support frame is slidably connected to the support side rod through the slider.

[0017] As an improved technical solution, the support frame is also fixedly installed with side ears, and each side ear has a movable column that is distributed parallel to the main body of the support. The bottom end of each movable column is provided with a self-locking movable wheel.

[0018] As an improved technical solution, the movable columns are connected by a cylinder frame, and the bottom end of the cylinder body is fixedly installed on the cylinder frame, and the piston rod of the cylinder body is fixedly connected to the support frame.

[0019] After adopting the above technical solution, the beneficial effects of this utility model are:

[0020] 1. This utility model utilizes the phase change filler composed of phase change material encapsulated in the heat storage chamber and auxiliary chamber to achieve a plateau period in temperature change during the phase change process, thereby maintaining a constant temperature environment during the testing process without immersing the cable in oil, ensuring stable temperature of the cable under test, and ensuring the cleanliness of the cable after testing.

[0021] 2. This utility model reduces contact thermal resistance by attaching a thermal pad to the cable surface and utilizes the coolant delivered by the constant temperature cooling box to circulate and absorb the heat transferred from the phase change filler in the temperature control channel, thereby achieving a constant temperature environment required for cable testing. Compared with traditional oil bath heating, the temperature control efficiency is higher and more stable.

[0022] 3. This utility model uses a cylinder to drive the support frame to move vertically and horizontally under the constraint of the support side rod, thereby realizing the opening and closing of the auxiliary compartment and the heat storage compartment, which facilitates the removal of the tested cables and improves testing efficiency and operational convenience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:

[0024] Figure 1 This is a three-dimensional structural diagram of the novel cable testing and temperature control device of this utility model.

[0025] Figure 2 This is a cross-sectional structural diagram of the novel cable testing and temperature control device of this utility model.

[0026] Figure 3 This is a schematic diagram of the installation structure of the water cooling device and the heat storage device of this utility model.

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the heat storage device of this utility model.

[0028] Figure 5 This is a schematic diagram of the clamping device structure of this utility model.

[0029] Figure 6 This is a schematic diagram of the installation structure of the movable column and support frame of this utility model.

[0030] Figure 7 For the present utility model Figure 3 A magnified structural diagram of part A.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Thermal storage chamber; 2. Auxiliary chamber; 3. Phase change filler; 4. Thermal conductive pad; 5. Temperature control flow channel; 501. Quick-connect water nozzle; 6. Constant temperature refrigeration box; 601. Infusion port; 7. Metal hose; 8. Support body; 801. Support side rod; 802. Side rod top cap; 9. Support frame; 901. Slide groove; 902. Sliding block; 903. Side ear; 10. Cylinder body; 11. Moving column; 1101. Self-locking moving wheel; 1102. Cylinder frame. Detailed Implementation

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] like Figures 1 to 7 As shown in the figure, this embodiment provides a novel cable detection and temperature control device. This novel cable detection and temperature control device includes a heat storage device consisting of a heat storage chamber 1 and an auxiliary chamber 2 for wrapping the cable. The auxiliary chamber 2 is installed above the heat storage chamber 1 via a clamping device. A water cooling device for cooling the phase change filler 3 is also provided on the outside of the heat storage chamber 1 and the auxiliary chamber 2. A heat storage cavity is provided between the heat storage chamber 1 and the auxiliary chamber 2, and both the heat storage cavity in the heat storage chamber 1 and the auxiliary chamber 2 are filled with the phase change filler 3. A heat-conducting pad 4 is provided on both the heat storage chamber 1 and the auxiliary chamber 2. Temperature control channels 5 are also provided in the heat storage chamber 1 and the auxiliary chamber 2, respectively, distributed along their axial direction. Quick-connect water nozzles 501 are welded to both ends of the temperature control channels 5. Metal hoses 7 are installed in each temperature control channel 5 through the quick-connect water nozzles 501, and the temperature control channels 5 are connected to the water cooling device through the metal hoses 7. The clamping device includes components symmetrically distributed below the heat storage chamber 1. The support body 8 and the auxiliary compartment 2 are also fixedly installed with a support frame 9 driven by the cylinder body 10. The clamping device can drive the auxiliary compartment 2 to open and close above the heat storage compartment 1. In the closed state, it can wrap and fix the cable to be tested, so that the cable does not need to be soaked in oil. The function of the heat storage device is to absorb the heat of the cable. The phase change filler 3 composed of phase change material has a plateau period characteristic during the phase change process, which ensures that the temperature of the cable to be tested is stable. The temperature control channel 5 is a group of three, which are installed in the corresponding heat storage compartment 1 and auxiliary compartment 2 respectively. The water cooling device can deliver coolant to the temperature control channel 5 through the metal hose 7 to provide a constant temperature cold source for the heat storage device. The heat storage compartment 1 is fixedly installed by the support body 8 and remains stationary. The auxiliary compartment 2 can be driven by the support frame 9 driven by the cylinder body 10 to move up and down in the heat storage compartment 1, and complete the opening and closing with the heat storage compartment 1.

[0036] Both the inner sides of the heat storage chamber 1 and the auxiliary chamber 2 are provided with arc-shaped grooves adapted to the cable, and the heat-conducting pads 4 are respectively attached to the arc-shaped grooves of the heat storage chamber 1 and the auxiliary chamber 2 by rivets. The compressibility of the heat-conducting pads 4, and the attachment of the arc-shaped grooves, ensure that the cable is in complete contact with the heat storage chamber 1 and the auxiliary chamber 2, further reducing the contact thermal resistance between the cable and the heat storage device, improving the heat conduction efficiency, and enabling the cable to reach a stable temperature state more quickly during the testing process, thereby improving the accuracy and efficiency of the testing.

[0037] The water-cooling device includes a constant-temperature refrigeration chamber 6 filled with coolant. The constant-temperature refrigeration chamber 6 is equipped with a liquid inlet 601 for installing a three-way connector. The liquid inlet 601 is connected to the corresponding metal hose 7 through quick-connect connectors. The liquid inlet 601 of the constant-temperature refrigeration chamber 6 is divided into two paths through the three-way connector. Each path of water is further divided into three paths through the quick-connect connector and the metal hose 7. The upper and lower three paths are respectively connected to the temperature control channels 5 inside the heat storage chamber 1 and the auxiliary chamber 2 and return to the constant-temperature refrigeration chamber 6. This allows the phase change filler 3 to dissipate excess heat in a timely manner after absorbing the heat from the cable, so as to maintain the constant temperature environment required for cable testing.

[0038] The support body 8 is vertically distributed below the thermal storage chamber 1, and an L-shaped support side rod 801 is fixedly installed on the support body 8. A side rod cap 802 for limiting the support frame 9 is fixedly installed at the end of the support side rod 801 away from the support body 8. The structural design of the support body 8 and the support side rod 801 provides stable support and guidance for the support frame 9, ensuring that the support frame 9 can accurately open and close, thereby realizing the clamping and release of the cable by the thermal storage device. The side rod cap 802 can limit the maximum rising height of the support frame 9.

[0039] Both sides of the support frame 9 are provided with sliding grooves 901. The support frame 9 is also slidably connected with sliders 902 that are adapted to the sliding grooves 901. The sliders 902 are located below the top caps 802 of the side rods. The support frame 9 is slidably connected to the side rods 801 of the support through the sliders 902. The sliders 902 can move up and down in the vertical direction synchronously with the support frame 9. When the height is constant, the cooperation of the sliding grooves 901 and the sliders 902 allows the support frame 9 to slide smoothly on the side rods 801 of the support on the horizontal plane. This allows the auxiliary compartment 2, which is in a closed state with the thermal storage compartment 1, to be misaligned with the thermal storage compartment 1, thereby facilitating the removal of the tested cables.

[0040] The support frame 9 is also fixedly installed with side ears 903. Each side ear 903 is inserted with a movable column 11 that is parallel to the support body 8. The bottom end of each movable column 11 is provided with a self-locking movable wheel 1101. The side ears 903 and the support frame 9 always move synchronously. When the support frame 9 moves up and down, the movable column 11 restricts its position change. The self-locking movable wheel 1101 can be locked when the device is stationary. The setting of movable column 11 and self-locking movable wheel 1101 makes the whole equipment have good mobility and flexibility, which facilitates the rapid transfer and adjustment of the equipment between different positions.

[0041] The movable columns 11 are connected by a cylinder frame 1102, and the bottom end of the cylinder body 10 is fixedly mounted on the cylinder frame 1102. The piston rod of the cylinder body 10 is fixedly connected to the support frame 9. The cylinder body 10 can move synchronously with the movable columns 11 through the cylinder frame 1102, and provide power support for the opening and closing of the auxiliary compartment 2 and the heat storage compartment 1 connected to the support frame 9, thereby realizing the automatic clamping and release of the cable by the heat storage device.

[0042] When cable testing is required, the cable to be tested is placed in the heat storage chamber 1, which is fixed in place by the support body 8. The piston rod of the cylinder body 10 in the clamping device pushes the connected support frame 9 to move up and down, so that the auxiliary chamber 2 on the support frame 9 moves closer to the heat storage chamber 1. After they come into contact, they close and wrap and fix the cable to be tested. The phase change filler 3, which is composed of phase change material encapsulated in the heat storage chamber 1 and the auxiliary chamber 2, has a plateau period characteristic in temperature change during the phase change process, which maintains a constant temperature environment during the test. It is not necessary to soak the cable in oil, and it can also ensure that the temperature of the cable under test is stable, ensuring the cleanliness of the cable after the test. It can also be used to take points for testing at both ends.

[0043] During this process, the thermal pads 4, which are installed in conjunction with the arc grooves in the thermal storage chamber 1 and the auxiliary chamber 2, are attached to the cable surface to reduce contact thermal resistance. The coolant delivered by the constant temperature cooling box 6 through the liquid inlet 601 is split into three paths by the quick-connect fitting and the metal hose 7. The metal hose 7 delivers the coolant to the temperature-controlled flow channels 5, which are distributed in groups of three in the thermal storage chamber 1 and the auxiliary chamber 2. The coolant circulates in the temperature-controlled flow channels 5, absorbs the heat transferred from the phase change filler 3, and then carries the heat back to the constant temperature cooling box 6 for heat dissipation, maintaining the constant temperature environment required for cable testing. Therefore, compared with traditional oil bath heating, the temperature control efficiency is higher and more stable.

[0044] After the test is completed, the cylinder body 10 drives the support frame 9 to move vertically upward under the restriction of the support side rod 801 until the auxiliary compartment 2 separates from the heat storage compartment 1, releasing the closed state. The maximum rising height of the support frame 9 is limited by the side rod cap 802. The cylinder body 10 moves synchronously with the moving column 11 through the cylinder frame 1102 and the moving column 11, which is horizontally inserted into the side ear 903 and has a self-locking moving wheel 1101. The cylinder body 10 moves horizontally and drives the support frame 9 to move horizontally. The slider 902, which is sleeved on the support side rod 801, slides in the groove 901 in the support frame 9. The position of the heat storage compartment 1 remains unchanged, and the auxiliary compartment 2 is misaligned with the heat storage compartment 1 to facilitate the removal of the tested cable.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel cable testing and temperature control device, characterized in that: The device includes a heat storage chamber (1) and an auxiliary chamber (2) for wrapping cables. The auxiliary chamber (2) is installed above the heat storage chamber (1) by means of a clamping device. A water cooling device for cooling the phase change filler (3) is also provided on the outside of the heat storage chamber (1) and the auxiliary chamber (2). A heat storage chamber is provided between the heat storage chamber (1) and the auxiliary chamber (2). The heat storage chambers in the heat storage chamber (1) and the auxiliary chamber (2) are filled with phase change filler (3). A heat-conducting pad (4) is provided on the heat storage chamber (1) and the auxiliary chamber (2). Temperature control channels (5) are also provided in the heat storage chamber (1) and the auxiliary chamber (2) respectively, distributed along their axial direction. Quick-connect water nozzles (501) are welded to both ends of the temperature control channels (5). Metal hoses (7) are installed in the temperature control channels (5) through the quick-connect water nozzles (501). The temperature control channels (5) are connected to the water cooling device through the metal hoses (7). The clamping device includes a support body (8) symmetrically distributed below the thermal storage chamber (1), and a support frame (9) driven by a cylinder body (10) is also fixedly installed on the auxiliary chamber (2).

2. The novel cable testing and temperature control equipment according to claim 1, characterized in that: The inner sides of the heat storage chamber (1) and the auxiliary chamber (2) are provided with arc-shaped grooves adapted to the cables, and the heat-conducting pads (4) are respectively attached to the arc-shaped grooves of the heat storage chamber (1) and the auxiliary chamber (2) by rivets.

3. The novel cable testing and temperature control equipment according to claim 2, characterized in that: The water cooling device includes a constant temperature refrigeration box (6) filled with coolant. The constant temperature refrigeration box (6) is provided with a liquid inlet (601) for installing a three-way connector. The liquid inlet (601) is connected to a corresponding metal hose (7) through a quick-connect connector.

4. The novel cable testing and temperature control equipment according to claim 1, characterized in that: The support body (8) is vertically distributed below the heat storage chamber (1), and an L-shaped support side rod (801) is fixedly installed on the support body (8). A side rod cap (802) for limiting the support frame (9) is fixedly installed at the end of the support side rod (801) away from the support body (8).

5. The novel cable testing and temperature control equipment according to claim 1, characterized in that: The support frame (9) has sliding grooves (901) on both sides. The support frame (9) is also slidably connected to a slider (902) that matches the sliding groove (901). The slider (902) is located below the top cap (802) of the side rod. The support frame (9) is slidably connected to the support side rod (801) through the slider (902).

6. The novel cable testing and temperature control equipment according to claim 5, characterized in that: The support frame (9) is also fixedly installed with side ears (903), and each side ear (903) is inserted with a movable column (11) that is parallel to the support body (8). Each movable column (11) is provided with a self-locking movable wheel (1101) at its bottom end.

7. The novel cable testing and temperature control equipment according to claim 6, characterized in that: The movable columns (11) are connected by a cylinder frame (1102), and the bottom end of the cylinder body (10) is fixedly installed on the cylinder frame (1102). The piston rod of the cylinder body (10) is fixedly connected to the support frame (9).

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