Protective wire harness for liquid nitrogen cooling

Abstract

The utility model relates to the technical field of wire harnesses, in particular to a protective wire harness for liquid nitrogen cooling, which comprises a sleeve, a wire harness main body and a connecting cover, a supporting block for supporting the wire harness main body for liquid nitrogen cooling is fixed on one side of the sleeve through a screw, a clamping block for fixing the wire harness main body is inserted in one side of the supporting block, and the connecting cover is arranged on the other side of the supporting block. A limiting block is arranged in the clamping block, a spring A for resetting the limiting block is arranged in the clamping block, a through hole for fixing the limiting block is formed in the surface of the supporting block, a heat preservation layer A for protecting a wire harness main body is adhered to the interior of the sleeve, a heat preservation layer B for protecting the wire harness main body is adhered to one side of the heat preservation layer A, and a spring B connected with an arc plate A is fixed to the interior of the sleeve through a screw. Through the arrangement of the clamping blocks, the supporting blocks, the springs A, the springs B, the springs C, the limiting blocks, the through holes, the heat preservation layer A, the heat preservation layer B, the arc plate A and the arc plate B, the problem that when an existing wire harness for liquid nitrogen cooling is used, the wire harness body is inconvenient to fix and protect is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harnesses, in particular to a protective wire harness for liquid nitrogen cooling. Background Art

[0002] Liquid nitrogen cooling is a device that uses liquid nitrogen cooling technology. It is mainly used to reduce the temperature of equipment in high-temperature environments. Liquid nitrogen cooling achieves the cooling effect by injecting liquid nitrogen into the inside of the equipment. The wiring harness provides the overall service equipment for a certain load source group, such as relay lines, switching devices, control systems, etc., including metal wires and rubber wrapped around the metal wires.

[0003] However, when the existing wire harness for liquid nitrogen cooling is used, the wire harness is usually directly exposed to the external environment. However, the temperature of liquid nitrogen cooling is low, and the material in the wire harness will shrink at a low temperature, causing the wire harness to become hard and brittle, and cracks will appear on the surface of the wire harness, thereby affecting the electrical performance of the wire harness. At the same time, when the wire harness encounters a corner during installation, the wire harness is directly bent significantly, and the inside of the wire harness will be affected. Therefore, a protective wire harness for liquid nitrogen cooling is provided. Utility Model Content

[0004] The main purpose of the utility model is to provide a protective wire harness for liquid nitrogen cooling. The utility model solves the problem that it is inconvenient to fix and protect the wire harness body when the existing wire harness for liquid nitrogen cooling is in use by arranging a clamping block, a supporting block, a spring A, a spring B, a spring C, a limit block, a through hole, a thermal insulation layer A, a thermal insulation layer B, an arc plate A and an arc plate B.

[0005] The technical solution adopted by the utility model to solve the technical problem is a protective wire harness for liquid nitrogen cooling, comprising a sleeve, a wire harness main body and a connection cover, a support block for supporting the wire harness main body for liquid nitrogen cooling is fixed by screws on one side of the sleeve, a clamping block for fixing the wire harness main body is inserted on one side of the support block, a spring A for resetting a limit block is installed inside the clamping block, a through hole for fixing the limit block is provided on the surface of the support block, an insulation layer A for protecting the wire harness main body is bonded inside the sleeve, an insulation layer B for protecting the wire harness main body is glued on one side of the insulation layer A, a spring B for connecting an arc plate A is fixed by screws inside the sleeve, a spring C for connecting the arc plate B is fixed by screws on the inner wall of the sleeve, and a connection block for entering the inside of a groove provided on the surface of the sleeve is welded on one side of the connection cover.

[0006] By adopting the above technical solution, when the wire harness body is placed inside the casing, the wire harness body contacts the arc plate A and the arc plate B in the casing, and then one end of the wire harness body is pulled to move, and then the wire harness body moves in the casing, and then the arc plates A and B in the casing, the spring B on one side of the arc plate A is compressed, and the spring C outside the arc plate B is compressed, so that it is convenient to protect the bending corner of the wire harness body. At the same time, the insulation layer A and the insulation layer B in the casing are respectively made of glass wool board and foamed polyurethane, and the glass wool board and the foamed polyurethane have good thermal insulation performance, which prevents the ventilator during liquid nitrogen cooling from damaging the wire harness body, so that it is convenient to protect the wire harness body used for liquid nitrogen cooling;

[0007] After the wiring harness body is placed in the sleeve, the limit block outside the clamp block is pressed, and then the spring A in the clamp block is compressed, and then the clamp block is pressed downward to make the clamp block enter the inside of the support block, and then the spring A in the clamp block drives the limit block to pop out, and then the limit block enters the through hole opened on the surface of the support block, so as to facilitate the fixing of the wiring harness body in the sleeve and avoid the shaking and deviation of the wiring harness body during the liquid nitrogen cooling operation.

[0008] Specifically, a magnet bar A connected to a magnet bar B bonded to the inside of the groove is bonded to the outside of the connection block, an outwardly extending exhibition board is bonded to the outside of the connection cover, and a rubber pad that improves the sealing performance between the connection cover and the sleeve is bonded to the inside of the exhibition board.

[0009] By adopting the above technical solution, when the corner of the wiring harness body is damaged, the display panel on the connection cover is pulled to move, and then the connection block on the connection cover is moved out of the groove, the magnet bar A on the connection block and the magnet bar B in the groove are separated, and then the connection cover is removed from the sleeve to expose the wiring harness body to the external environment, so as to facilitate the repair of the corner of the wiring harness body. After the corner of the wiring harness body is repaired, when the connection block on the connection cover is placed into the groove opened on the surface of the sleeve, the magnet bar A outside the connection block is magnetically connected with the magnet bar B in the groove, and then the display panel outside the connection cover is fixed to the outside of the sleeve, and the rubber pad inside the display panel improves the sealing between the connection cover and the sleeve.

[0010] Specifically, the inner sides of the clamping block and the supporting block are both provided with protrusions for increasing the friction force of the wiring harness body.

[0011] By adopting the above technical solution, when the clamping block and the supporting block clamp the wiring harness body, the protrusions arranged in the clamping block and the supporting block increase the friction force on the wiring harness body, thereby facilitating the fixing of the wiring harness body.

[0012] Specifically, the outer sides of the arc plate A and the arc plate B are both bonded with rubber for protecting the wiring harness body.

[0013] By adopting the above technical solution, when the wire harness body contacts the arc plate A and the arc plate B in the sleeve, the rubber improves the elasticity of the surface of the arc plate A and the arc plate B, which facilitates the protection of the wire harness body.

[0014] Specifically, the inner size of the groove matches the outer size of the connecting block.

[0015] By adopting the above technical solution, when the connecting block on the connecting cover enters the groove on the surface of the sleeve, the inner size of the groove matches the size of the connecting block, thereby improving the fit between the connecting block and the groove.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model discloses a protective wire harness for liquid nitrogen cooling. When the wire harness body is placed in a sleeve, the wire harness body contacts the arc plate A and the arc plate B in the sleeve, and then one end of the wire harness body is pulled to move, and then the wire harness body moves in the sleeve. Then the arc plates A and B in the sleeve, the spring B on one side of the arc plate A is compressed, and the spring C outside the arc plate B is compressed, so that it is convenient to protect the bending corners of the wire harness body. At the same time, the insulation layer A and the insulation layer B in the sleeve are respectively made of glass wool board and foamed polyurethane. The glass wool board and the foamed polyurethane have good thermal insulation performance, which can prevent the temperature during liquid nitrogen cooling from damaging the wire harness body, so that it is convenient to protect the wire harness body for liquid nitrogen cooling.

[0018] (2) The utility model discloses a protective wire harness for liquid nitrogen cooling. When the wire harness body is placed in the sleeve, the limit block outside the clamp block is pressed, and then the spring A in the clamp block is compressed. Then the clamp block is pressed downward to allow the clamp block to enter the support block. Then the spring A in the clamp block drives the limit block to pop outward, and then the limit block enters the through hole opened on the surface of the support block, thereby facilitating the fixing of the wire harness body in the sleeve and preventing the wire harness body from shaking and deviating during the liquid nitrogen cooling operation.

[0019] (3) The protective wire harness for liquid nitrogen cooling described in the utility model, when the corner of the wire harness body is damaged, the display plate on the connection cover is pulled to move, and then the connection block on the connection cover is moved out of the groove, the magnet bar A on the connection block and the magnet bar B in the groove are separated, and then the connection cover is removed from the sleeve, so that the wire harness body is exposed to the external environment, thereby facilitating the repair of the corner of the wire harness body. After the corner of the wire harness body is repaired, when the connection block on the connection cover is placed into the groove opened on the surface of the sleeve, the magnet bar A outside the connection block is magnetically connected with the magnet bar B in the groove, and then the display plate outside the connection cover is fixed to the outside of the sleeve, and the rubber pad inside the display plate improves the sealing between the connection cover and the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of a protective wiring harness for liquid nitrogen cooling according to the utility model;

[0022] Figure 2 This is a schematic diagram of the partial explosion structure of a protective harness for liquid nitrogen cooling according to the utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of a sleeve of a protective wiring harness for liquid nitrogen cooling according to the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of a clamp block of a protective wiring harness for liquid nitrogen cooling according to the utility model;

[0025] In the figure: 1. sleeve; 2. clamping block; 3. wiring harness body; 4. support block; 5. limit block; 6. through hole; 7. connection cover; 8. display board; 9. spring A; 10. convex particle; 11. insulation layer A; 12. insulation layer B; 13. spring B; 14. arc plate A; 15. rubber; 16. arc plate B; 17. spring C; 18. magnet strip A; 19. connection block; 20. groove; 21. magnet strip B; 22. rubber pad. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] In order to protect the wiring harness body 3 for liquid nitrogen cooling, as an embodiment of the utility model, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a protective wire harness for liquid nitrogen cooling described in the utility model comprises a sleeve 1, a wire harness body 3 and a connecting cover 7, a support block 4 for supporting the wire harness body 3 for liquid nitrogen cooling is fixed by screws on one side of the sleeve 1, a clamping block 2 for fixing the wire harness body 3 is inserted on one side of the support block 4, a spring A9 for resetting the limit block 5 is installed inside the clamping block 2, a through hole 6 for fixing the limit block 5 is opened on the surface of the support block 4, an insulating layer A11 for protecting the wire harness body 3 is bonded inside the sleeve 1, and an insulating layer B12 for protecting the wire harness body 3 is glued on one side of the insulating layer A11, a spring B13 for connecting the arc plate A14 is fixed by screws inside the sleeve 1, a spring C17 for connecting the arc plate B16 is fixed by screws on the inner wall of the sleeve 1, and a connecting block 19 for entering the inside of the groove 20 opened on the surface of the sleeve 1 is welded on one side of the connecting cover 7.

[0028] When in use, when the wire harness body 3 is placed inside the sleeve 1, the wire harness body 3 contacts the arc plate A14 and the arc plate B16 in the sleeve 1, and then one end of the wire harness body 3 is pulled to move, and then the wire harness body 3 moves in the sleeve 1, and then the arc plate A14 and the arc plate B16 in the sleeve 1, the spring B13 on one side of the arc plate A14 is compressed, and the spring C17 outside the arc plate B16 is compressed, so as to facilitate the protection of the bending corner of the wire harness body 3, and at the same time, the insulation layer A11 and the insulation layer B12 in the sleeve 1 are respectively made of glass wool board and foamed polyurethane, and both the glass wool board and the foamed polyurethane have good thermal insulation performance, so as to avoid the damage to the wire harness body 3 caused by the liquid nitrogen cooling, so as to facilitate the protection of the wire harness body 3 used for liquid nitrogen cooling;

[0029] When the wiring harness body 3 is placed in the sleeve 1, the limit block 5 outside the clamp block 2 is pressed, and then the spring A9 in the clamp block 2 is compressed, and then the clamp block 2 is pressed downward to make the clamp block 2 enter the support block 4, and then the spring A9 in the clamp block 2 drives the limit block 5 to pop outward, and then the limit block 5 enters the through hole 6 opened on the surface of the support block 4, so as to facilitate the fixing of the wiring harness body 3 in the sleeve 1 and avoid the shaking and deviation of the wiring harness body 3 during the liquid nitrogen cooling operation.

[0030] In order to repair the corner of the wiring harness body 3, for example, Figure 2 As shown, the utility model also includes that the outer side of the connecting block 19 is bonded with a magnet bar A18 connected to the magnet bar B21 bonded to the inside of the groove 20, the outer side of the connecting cover 7 is bonded with an outwardly extending exhibition board 8, and the inner side of the exhibition board 8 is bonded with a rubber pad 22 to improve the sealing performance between the connecting cover 7 and the sleeve 1.

[0031] During use, when the corner of the wiring harness body 3 is damaged, pull the display plate 8 on the connection cover 7 to move it, and then the connection block 19 on the connection cover 7 is moved out of the groove 20, and the magnet bar A18 on the connection block 19 is separated from the magnet bar B21 in the groove 20, and then the connection cover 7 is removed from the sleeve 1, so that the wiring harness body 3 is exposed to the external environment, so as to facilitate the maintenance of the corner of the wiring harness body 3. After the corner of the wiring harness body 3 is repaired, when the connection block 19 on the connection cover 7 is placed in the groove 20 opened on the surface of the sleeve 1, the magnet bar A18 outside the connection block 19 is magnetically connected with the magnet bar B21 in the groove 20, and then the display plate 8 outside the connection cover 7 is fixed to the outside of the sleeve 1, and the rubber pad 22 inside the display plate 8 improves the sealing between the connection cover 7 and the sleeve 1.

[0032] In order to increase the friction force on the wiring harness body 3, illustratively, as Figure 4 As shown, the utility model also includes that the inner sides of the clamp block 2 and the support block 4 are both provided with protrusions 10 for increasing the friction force of the wiring harness body 3 .

[0033] When in use, when the clamp block 2 and the support block 4 clamp the wire harness body 3, the protrusions 10 provided in the clamp block 2 and the support block 4 increase the friction force on the wire harness body 3, thereby facilitating the fixing of the wire harness body 3.

[0034] In order to protect the wiring harness body 3, for example, Figure 3 As shown, the utility model also includes that the outer sides of the arc plate A14 and the arc plate B16 are both bonded with rubber 15 for protecting the wire harness body 3 .

[0035] When in use, when the wire harness body 3 contacts the arc plate A14 and the arc plate B16 in the sleeve 1 , the rubber 15 increases the elasticity of the surfaces of the arc plate A14 and the arc plate B16 , thereby protecting the wire harness body 3 .

[0036] In order to improve the fit between the connection block 19 and the groove 20, for example, Figure 2 As shown, the utility model also includes that the inner size of the groove 20 is consistent with the outer size of the connecting block 19.

[0037] During use, when the connection block 19 on the connection cover 7 enters the groove 20 on the surface of the sleeve 1 , the inner size of the groove 20 matches the size of the connection block 19 , thereby improving the fit between the connection block 19 and the groove 20 .

[0038] When the utility model is in use, when the wire harness body 3 is put into the sleeve 1, the wire harness body 3 contacts the arc plate A14 and the arc plate B16 in the sleeve 1, and then one end of the wire harness body 3 is pulled to move, and then the wire harness body 3 moves in the sleeve 1, and then the arc plate A14 and the arc plate B16 in the sleeve 1, the spring B13 on one side of the arc plate A14 is compressed, and the spring C17 outside the arc plate B16 is compressed, so as to facilitate the protection of the bending corner of the wire harness body 3, and at the same time, the insulation layer A11 and the insulation layer B12 in the sleeve 1 are respectively made of glass wool board and foamed polyurethane, and the glass wool board and the foamed polyurethane have good insulation performance, so as to avoid the damage to the wire harness body 3 caused by the liquid nitrogen cooling, so as to facilitate the protection of the wire harness body 3 used for liquid nitrogen cooling;

[0039] When the wire harness body 3 is put into the sleeve 1, the limit block 5 outside the clamp block 2 is pressed, and then the spring A9 inside the clamp block 2 is compressed, and then the clamp block 2 is pressed downward to make the clamp block 2 enter the support block 4, and then the spring A9 inside the clamp block 2 drives the limit block 5 to pop outward, and then the limit block 5 enters the through hole 6 opened on the surface of the support block 4, so as to facilitate the fixing of the wire harness body 3 in the sleeve 1, and avoid the shaking and deviation of the wire harness body 3 during the liquid nitrogen cooling operation;

[0040] When the corner of the wiring harness body 3 is damaged, the display plate 8 on the connection cover 7 is pulled to move, and then the connection block 19 on the connection cover 7 is removed from the groove 20, and the magnet strip A18 on the connection block 19 is separated from the magnet strip B21 in the groove 20, and then the connection cover 7 is removed from the sleeve 1, so that the wiring harness body 3 is exposed to the external environment, so as to facilitate the repair of the corner of the wiring harness body 3. After the corner of the wiring harness body 3 is repaired, when the connection block 19 on the connection cover 7 is placed in the groove 20 opened on the surface of the sleeve 1, the magnet strip A18 outside the connection block 19 is magnetically connected with the magnet strip B21 in the groove 20, and then the display plate 8 outside the connection cover 7 is fixed to the outside of the sleeve 1, and the rubber pad 22 in the display plate 8 improves the sealing between the connection cover 7 and the sleeve 1;

[0041] When the clamp block 2 and the support block 4 clamp the wiring harness body 3, the protrusions 10 provided in the clamp block 2 and the support block 4 increase the friction force on the wiring harness body 3, thereby facilitating the fixing of the wiring harness body 3;

[0042] When the wire harness body 3 contacts the arc plate A14 and the arc plate B16 in the sleeve 1, the rubber 15 increases the elasticity of the surface of the arc plate A14 and the arc plate B16, so as to protect the wire harness body 3;

[0043] When the connection block 19 on the connection cover 7 enters the groove 20 on the surface of the sleeve 1 , the inner size of the groove 20 matches the size of the connection block 19 , thereby improving the fit between the connection block 19 and the groove 20 .

[0044] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A protective harness for liquid nitrogen cooling, characterized in that: The invention comprises a sleeve (1), a wiring harness body (3) and a connection cover (7); a support block (4) for supporting the wiring harness body (3) for liquid nitrogen cooling is fixed by screws on one side of the sleeve (1); a clamping block (2) for fixing the wiring harness body (3) is inserted on one side of the support block (4); a spring A (9) for returning a stop block (5) is installed inside the clamping block (2); a through hole (6) for fixing the stop block (5) is opened on the surface of the support block (4); and a spring (9) for fixing the stop block (5) is glued inside the sleeve (1). There is a heat-insulating layer A (11) for protecting the wiring harness body (3), and a heat-insulating layer B (12) for protecting the wiring harness body (3) is glued to one side of the heat-insulating layer A (11). A spring B (13) for connecting the arc plate A (14) is fixed by screws inside the sleeve (1), and a spring C (17) for connecting the arc plate B (16) is fixed by screws on the inner wall of the sleeve (1). A connecting block (19) for entering the inside of a groove (20) provided on the surface of the sleeve (1) is welded on one side of the connecting cover (7).

2. A protective wire harness for liquid nitrogen cooling according to claim 1, characterized in that: The outer side of the connection block (19) is bonded with a magnet strip A (18) connected to a magnet strip B (21) bonded to the inside of the groove (20); the outer side of the connection cover (7) is bonded with an outwardly extending display board (8); the inner side of the display board (8) is bonded with a rubber pad (22) for improving the sealing performance between the connection cover (7) and the sleeve (1).

3. A protective wire harness for liquid nitrogen cooling according to claim 1, characterized in that: The inner sides of the clamping block (2) and the supporting block (4) are both provided with protrusions (10) for increasing the friction force of the wiring harness body (3).

4. A protective wire harness for liquid nitrogen cooling according to claim 1, characterized in that: The outer sides of the arc plate A (14) and the arc plate B (16) are both bonded with rubber (15) for protecting the wiring harness body (3).

5. A protective wire harness for liquid nitrogen cooling according to claim 2, characterized in that: The inner size of the groove (20) matches the outer size of the connecting block (19).

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