Cable isolation device

Abstract

The utility model relates to a cable isolation device which is arranged in a wall body, the wall body is used for separating a high-temperature area and a normal-temperature area, and the cable isolation device comprises an isolation plate and a wire harness sleeve; the isolation plate is embedded in the wall body, and a plurality of wire passing holes are formed in the isolation plate in the thickness direction of the wall body in a penetrating mode. At least part of the area of the wire harness sleeve in the extending direction is installed in the wire passing hole, and the outer side surface of the wire harness sleeve in the radial direction is tightly attached to the hole wall of the wire passing hole. The interior of the wire harness sleeve is hollow in the axis direction and is provided with a cable passing hole, and the axis direction is parallel to the thickness direction of the wall body. The cable passing hole is used for allowing a cable to penetrate through, the hole diameter of the cable passing hole can be adjusted, and the cable passing hole is configured to be arranged in the mode that the hole wall is tightly attached to the periphery of the cable. According to the utility model, cables are arranged in order and are convenient to overhaul and maintain, matching adjustment can be carried out according to the outer diameters of the cables, and the outer layer structure is protected while the cables are prevented from shaking; fireproof mud which is laid and removed repeatedly is replaced, and the production cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production auxiliary equipment, in particular to a cable isolation device. Background Art

[0002] Lithium battery production requires a negative pressure formation process, during which a press or needle bed device needs to be connected to a power supply host via cables. The press part works in a high-temperature environment, while the power supply host works in a normal temperature environment. To avoid the impact of temperature differences on the work of the two parts, they are usually placed in two adjacent work spaces, and the current lines, voltage lines, signal lines and other cable harnesses connecting the two need to be set through the wall.

[0003] In the prior art, the cable harnesses are arranged in a disorderly manner in the harness opening at the wall penetration position, making maintenance difficult. Since the temperature of the working space where the press is located is high and there is a fire risk, fire-retardant mud is often laid at the harness opening for flame retardancy. The fire-retardant mud can easily cause blockage in the harness opening, and the fire-retardant mud needs to be repeatedly removed and laid before and after maintenance, which is time-consuming, labor-intensive, and poses a major safety hazard. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the technical difficulties in the prior art that cables passing through walls are isolated and flame-retardant only by fire-retardant mud, which is inconvenient to maintain and has messy placement. A cable isolation device is provided to provide wire holes and outer layer protection for cables passing through walls, thereby replacing fire-retardant mud to achieve flame retardancy and heat insulation.

[0005] In order to solve the above technical problems, the utility model provides a cable isolation device, which is arranged in a wall, and the wall is used to separate a high temperature zone and a normal temperature zone. The cable isolation device includes:

[0006] An isolation plate, the isolation plate is embedded in the wall, and the isolation plate is provided with a plurality of wire holes along the thickness direction of the wall;

[0007] A wiring harness sleeve, wherein at least a portion of the wiring harness sleeve in its extension direction is installed in the wire passing hole, and the outer surface of the wiring harness sleeve in the radial direction is in close contact with the hole wall of the wire passing hole; the interior of the wiring harness sleeve is hollow along the axial direction and is arranged as a cable passing hole, and the axial direction is parallel to the thickness direction of the wall; the cable passing hole is used to pass cables, and the aperture of the cable passing hole can be adjusted, and the cable passing hole is configured so that its hole wall is in close contact with the outer periphery of the cable.

[0008] In one embodiment of the utility model, the wiring harness sleeve includes a group of first sets and several groups of second sets arranged in sequence from the outside to the inside along the radial direction; the first set and the second set are both arranged as cylindrical structures, and the first set and the second set are concentrically nested.

[0009] In one embodiment of the utility model, a locking portion is provided on the outer periphery of each group of the second kit; the inner walls of the first kit and the second kit are provided with a guide groove and a fixing groove capable of accommodating the locking portion, the fixing groove is configured as an annular groove, the guide groove extends along the axial direction, and connects the fixing groove and the end of the wiring harness sleeve.

[0010] In an embodiment of the present invention, the guide groove is located on a side of the fixing groove close to the normal temperature zone in the axial direction.

[0011] In one embodiment of the present invention, the locking parts have at least two groups, and the two groups of locking parts are arranged opposite to each other along the radial direction on the outer circumference of the second set.

[0012] In one embodiment of the present invention, the locking portion is configured to be hemispherical; the groove walls of the guide groove and the fixing groove are both configured to be spherical surfaces, and are configured to be structures that can cooperate with the locking portion.

[0013] In an embodiment of the present invention, both ends of the wiring harness sleeve in the axial direction are located outside the wire passing hole.

[0014] In one embodiment of the utility model, the isolation plate includes a first plate body, a second plate body and a third plate body which are arranged closely in sequence along the thickness direction of the wall body; the projection of the second plate body on the first plate body along the thickness direction of the wall body is located in the first plate body, and the projection of the second plate body on the third plate body along the thickness direction of the wall body is located in the third plate body, and the side of the second plate body and the surface of the first plate body and the third plate body form an installation groove, and the isolation plate is installed in cooperation with the wall through the installation groove.

[0015] In one embodiment of the present invention, the first plate body and the third plate body are configured to be flame retardant materials, and the second plate body is configured to be heat insulating material.

[0016] In one embodiment of the present invention, a mounting handle is provided on the surface of the isolation plate facing the high temperature zone.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The cable isolation device described in the utility model is provided with wire holes as discrete installation positions, so that the cable harnesses are arranged neatly for easy marking or inspection and maintenance; the harness sleeve can also be accurately matched and adjusted according to the outer diameter of the cable harness to avoid cable shaking while protecting the outer structure of the cable, and has strong flexibility; the utility model is provided with a detachable structure to replace the fireproof mud that is repeatedly laid and removed, and has lower production costs and higher efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the use of the cable isolation device in the preferred embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the wiring harness sleeve in the preferred embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the first kit in the preferred embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the second kit in the preferred embodiment of the utility model;

[0024] Figure 5 It is a schematic structural diagram of the isolation plate and the mounting handle in the preferred embodiment of the utility model.

[0025] Explanation of the reference numerals in the specification: 1. Isolation plate; 11. First plate body; 12. Second plate body; 13. Third plate body; 14. Mounting groove; 2. Wire hole; 3. Wire harness sleeve; 3001. Cable hole; 31. First set; 32. Second set; 3301. Locking part; 3302. Guide groove; 3303. Fixing groove; 4. Cable; 5. Mounting handle. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] Example

[0028] Reference Figure 1 to Figure 5 As shown, the utility model provides a cable isolation device, which is arranged in the wall between the press and the power supply of the negative pressure formation process. Due to different working temperature requirements, the press is set in a high temperature zone environment of about 45°C, and the power supply host is set in a normal temperature zone environment of about 23°C, and the wall is used to separate the high temperature zone and the normal temperature zone; the cable isolation device is used to fix the cable 4 between the press and the power supply, so that the cable can be installed in the corresponding channel position when it is set through the wall, thereby improving the inspection and maintenance efficiency; at the same time, the cable isolation device is also used to replace the fireproof mud laid at the wall-penetrating position, reduce the fire risk, and improve the production safety of the battery in the negative pressure formation process.

[0029] Specifically, refer to Figure 1 As shown, the cable isolation device includes an isolation plate 1 and a harness sleeve 3; the isolation plate 1 is embedded in the wall for fixing, and the isolation plate 1 is provided with a plurality of wire holes 2 along the thickness direction of the wall, and the aperture, number and arrangement of the wire holes 2 can be determined according to the cable laying requirements. The harness sleeve 3 is located in the wire hole 2, and the inside of the harness sleeve 3 is hollow along the axial direction and is provided as a cable hole 3001, and the cable hole 3001 is used to pass the cable 4, and the axial direction is parallel to the thickness direction of the wall. Preferably, the outer surface of the harness sleeve 3 along the radial direction is close to the hole wall of the wire hole 2, and the hole wall of the cable hole 3001 is covered on the outer periphery of the cable 4. By providing the harness sleeve 3, the cable 4 can be fixed in the extension direction of the wall, so as to prevent the cable 4 from shaking in the wire hole 2 or rubbing against the isolation plate 1, and the harness sleeve 3 can effectively protect the cable 4.

[0030] Next, various types of cable harnesses, such as current lines, voltage lines and signal lines, are connected between the press and the power supply host. The specifications of the various cables are not the same. In order to enable the harness sleeve 3 to adapt to different types of cables or harnesses, preferably, the aperture of the cable hole 3001 can be adjusted, so that the hole wall of the cable hole 3001 can be close to the outer periphery of the cable 4, thereby better fixing and clamping the cable 4.

[0031] Specifically, refer to Figure 1 A cable harness structure is shown. In some embodiments, the harness cover 3 includes a first kit 31, and the first kit 31 is configured as a cylindrical structure. When the internal aperture of the first kit 31 is adapted to the cable harness, the harness cover 3 only includes one set of the first kit 31, which can achieve isolation protection of the cable passing through the wall.

[0032] Specifically, for Figure 1In other cable harness structures shown, in some embodiments, the outer diameter of the cable 4 is smaller than the hole diameter inside the first set 31; in this case, the harness cover 3 includes a group of the first set 31 and a plurality of groups of the second set 32, and a group of the first set 31 and a plurality of groups of the second set 32 ​​are arranged in sequence from the outside to the inside along the radial direction, and the second set 32 ​​is also arranged as a cylindrical structure, and the first set 31 and the second set 32 ​​are arranged concentrically. The first set 31 is located on the outside and its outer periphery is closely attached to the hole wall of the wire hole 2, and the second set 32 ​​is installed on the inside, and the outer diameter of the cable 4 is adapted by adjusting the number of the second set 32. For example, when the diameter of the cable 4 is 4 cm and the inner diameter of the first set 31 is 4 cm, the harness cover 3 only includes a group of the first set 31; when the diameter of the cable 4 is 2 cm, the harness cover 3 can be arranged to include a group of the first set 31 and a group of the second set 32, and at this time, the outer diameter of the second set 32 ​​is 4 cm and the inner diameter is 2 cm.

[0033] Specifically, refer to Figure 2 to Figure 4 As shown, the outer periphery of the first set 31 is set as a smooth arc surface, which is used to fit tightly with the wire hole 2; the outer periphery of each group of the second set 32 ​​is provided with a locking portion 3301, and the second set 32 ​​is installed on the adjacent first set or second set through the locking portion 3301. The inner walls of the first set 31 and the second set 32 ​​are provided with a guide groove 3302 and a fixing groove 3303, and the guide groove 3302 and the fixing groove 3303 can both accommodate the locking portion 3301. Among them, the fixing groove 3303 is set as an annular groove, and the guide groove 3302 extends along the axial direction of the wiring harness sleeve 3, and the guide groove 3302 is connected to the fixing groove 3303; the guide groove 3302 of the first set 31 is also connected to at least one end of the first set 31, and the guide groove 3302 of the second set 32 ​​is also connected to at least one end of the second set 32.

[0034] Next, the plane where the fixing groove 3303 is located is perpendicular to the extension direction of the guide groove 3302. The second set 32 ​​located in the inner layer slides the locking part 3301 along the guide groove 3302 to connect the second set 32 ​​with the adjacent outer set. When the locking part 3301 slides to the position where the guide groove 3302 is connected with the fixing groove 3303, the second set 32 ​​is rotated, and the locking part 3301 enters the fixing groove 3303 and is staggered with the guide groove 3302. The locking part 3301 is limited to the position where the fixing groove 3303 is located in the axial direction, thereby fixing the second set 32 ​​to the set adjacent to the outer layer and preventing the inner set from slipping or shifting.

[0035] Furthermore, in some embodiments, the locking portion 3301 is configured to be block-shaped; in a preferred embodiment of the utility model, the locking portion 3301 is preferably configured to be hemispherical, and the groove walls of the guide groove 3302 and the fixing groove 3303 are both configured to be spherical surfaces, and are configured to be a structure that can cooperate with the locking portion 3301.

[0036] Next, the locking part 3301 has at least two groups, the number of the guide grooves 3302 is the same as the number of the locking parts 3301, and the positions of the guide grooves 3302 are arranged in a one-to-one correspondence with the positions of the locking parts 3301. In some embodiments, the two groups of locking parts 3301 are arranged relatively along the radial direction on the outer periphery of the second set 32, and are located at both ends of the diameter. After the second set 32 ​​is installed, the stability is high, the locking effect is uniform and stable, and the locking can be achieved by slightly rotating the second set 32. During installation, the range of the rotation angle of the second set 32 ​​is larger; in other embodiments, the locking parts 3301 can also be arranged to be arranged around the outer periphery of the second set 32, and multiple groups that meet the locking requirements are arranged; the position and number of the locking parts 3301 are not limited thereto.

[0037] It should be noted that there is a temperature difference between the high temperature zone and the normal temperature zone, and since the guide groove 3302 passes through at least one end of the wiring harness sleeve 3, it will connect the air in at least one area, affecting the working temperature on both sides. On the one hand, when there are multiple groups of guide grooves 3302, more connected air affects the temperature maintenance on both sides. Therefore, in the utility model, each group of the second set 32 ​​is preferably provided with two groups of the locking parts 3301, and correspondingly, the first set 31 and the second set 32 ​​are preferably provided with two groups of the guide grooves 3302. On the second hand, referring to Figure 2 to Figure 4 As shown, the guide groove 3302 is preferably arranged to connect only one end of the first set 31 or the second set 32; one end of the guide groove 3302 in the extension direction is connected to the fixed groove 3303, and the other end in the extension direction is connected to the end of the harness sleeve 3; compared with the setting of penetrating both ends, it can not only avoid the locking part 3301 from continuing to slide along the guide groove 3302 and crossing the fixed groove 3303 during installation to cause installation difficulties, but also reduce the circulation of air and the exchange of heat. In addition, the guide groove 3302 is located on the side of the fixed groove 3303 close to the normal temperature zone in the axial direction, so as to avoid the high-temperature air from flowing through the cable isolation device and causing the heat loss in the high-temperature zone. In the third aspect, the fixed groove 3303 is arranged close to the normal temperature zone in the axial direction, and the extension length of the guide groove 3302 is reduced on the basis of realizing the locking of the first set 31 and the second set 32, so that the thickness of the harness sleeve 3 on the side close to the high temperature zone is larger, the temperature loss rate of the high temperature zone is lower, and the temperature of the working area of ​​the press is kept in a higher range, reducing energy consumption.

[0038] Specifically, refer to Figure 1 As shown, at least a portion of the wiring harness sleeve 3 in the extension direction is installed in the wire hole 2; preferably, both ends of the wiring harness sleeve 3 in the axial direction are located outside the wire hole 2 to avoid wear between the cable 4 and the opening of the wire hole 2.

[0039] Specifically, refer to Figure 5 As shown, the isolation plate 1 includes a first plate 11, a second plate 12 and a third plate 13 which are arranged closely in sequence along the thickness direction of the wall; the projection of the second plate 12 on the first plate 11 along the thickness direction of the wall is located inside the first plate 11, and the projection of the second plate 12 on the third plate 13 along the thickness direction of the wall is located inside the third plate 13, and the side of the second plate 12 and the surfaces of the first plate 11 and the third plate 13 form a mounting groove 14, and the isolation plate 1 is installed in cooperation with the wall through the mounting groove 14. Preferably, the second plate 12 is located in the middle of the wall close to the normal temperature zone, and the thickness of the third plate 13 arranged toward the high temperature zone is greater than the thickness of the first plate 11 arranged toward the normal temperature zone, so as to maintain the working temperature of the high temperature zone.

[0040] Specifically, the first plate 11 and the third plate 13 are made of flame retardant and high temperature resistant materials, the second plate 12 is made of heat insulating and high temperature resistant materials; the first set 31 and the second set 32 ​​are both made of high temperature resistant and flame retardant insulating materials. The cable isolation device can replace fireproof mud to achieve heat insulation and flame retardant functions, reduce the risk of safety accidents such as fire, and improve safety performance and service life; the detachable performance can also save production costs compared to the repeated laying and removal of fireproof mud.

[0041] Specifically, refer to Figure 5 As shown, the surface of the third plate body 13 of the isolation plate 1 facing the high temperature zone is also provided with an installation handle 5 to facilitate the transportation and installation of the cable isolation device; in some embodiments, the installation handle 5 can also be provided on the first plate body 11.

[0042] The working principle of a cable isolation device described in the utility model is as follows;

[0043] Determine the outer diameter of the cable to be installed. The outer diameter of the cable 4 is the aperture of the cable hole 3001 of the harness cover 3. Determine the structure of the harness cover 3 according to the aperture of the cable hole 3001 and the aperture data of the wire hole 2. When the harness cover 3 is only set as one set of the first set 31, pass the cable from the high temperature zone to the normal temperature zone to complete the installation. When the harness cover 3 includes the first set 31 and the second set 32, the locking part 3301 of the second set 32 ​​enters the guide groove 3302 of the first set 31 and slides along it. After sliding to the position of the fixed groove 3303, rotate and lock to achieve installation. When the harness cover 3 includes multiple sets of the second set 32, repeat the above scheme and install them from the outside to the inside in sequence. After completion, pass the cable 4 from the high temperature zone to the normal temperature zone and fix it.

[0044] When disassembling, the second inner set 32 ​​is rotated so that the locking portion 3301 is in the communication position between the fixing groove 3303 and the guide groove 3302, and then the second inner set 32 ​​is pulled out along the guide groove 3302. In addition to battery production and processing, the cable isolation device described in the utility model can also be used in cable harness wall penetration scenarios in other industries such as power grids and substations. The installation is orderly, and the harness cables correspond to the wire holes 2 for easy inspection, maintenance and marking. It has strong flexibility and can be switched and adjusted freely.

[0045] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A cable isolation device, arranged in a wall, the wall being used to separate a high temperature zone and a normal temperature zone, characterized in that: The cable isolation device comprises: An isolation plate (1), the isolation plate (1) being embedded in the wall, the isolation plate (1) being provided with a plurality of wire holes (2) extending through the wall in a thickness direction; A wiring harness sleeve (3), wherein at least a portion of the wiring harness sleeve (3) in its extension direction is installed in the wire hole (2), and the outer surface of the wiring harness sleeve (3) in the radial direction is in close contact with the hole wall of the wire hole (2); the interior of the wiring harness sleeve (3) is hollow along the axial direction and is arranged as a cable hole (3001), and the axial direction is parallel to the thickness direction of the wall; the cable hole (3001) is used for passing a cable (4), and the aperture of the cable hole (3001) can be adjusted, and the cable hole (3001) is configured so that its hole wall is in close contact with the outer periphery of the cable (4).

2. The cable isolation device according to claim 1, characterized in that: The wiring harness sleeve (3) comprises a group of first sleeves (31) and a plurality of groups of second sleeves (32) arranged in sequence from the outside to the inside along the radial direction; the first sleeve (31) and the second sleeve (32) are both arranged as cylindrical structures, and the first sleeve (31) and the second sleeve (32) are arranged concentrically and nested.

3. The cable isolation device according to claim 2, characterized in that: A locking portion (3301) is provided on the outer periphery of each group of the second sets (32); the inner walls of the first sets (31) and the second sets (32) are provided with a guide groove (3302) and a fixing groove (3303) capable of accommodating the locking portion (3301), the fixing groove (3303) being configured as an annular groove, the guide groove (3302) extending along the axial direction and connecting the fixing groove (3303) and the end of the wiring harness sleeve (3).

4. The cable isolation device according to claim 3, characterized in that: The guide groove (3302) is located on a side of the fixing groove (3303) close to the normal temperature zone in the axial direction.

5. The cable isolation device according to claim 3, characterized in that: The locking portions (3301) have at least two groups, and the two groups of locking portions (3301) are arranged opposite to each other along the radial direction on the outer circumference of the second set (32).

6. The cable isolation device according to claim 3, characterized in that: The locking portion (3301) is configured to be hemispherical; the groove walls of the guide groove (3302) and the fixing groove (3303) are both configured to be spherical surfaces, and are configured to be structures that can cooperate with the locking portion (3301).

7. The cable isolation device according to any one of claims 1 to 6, characterized in that: Both ends of the wiring harness sleeve (3) in the axial direction are located outside the wire passing hole (2).

8. The cable isolation device according to claim 1, characterized in that: The isolation plate (1) comprises a first plate (11), a second plate (12) and a third plate (13) which are arranged closely in sequence along the thickness direction of the wall; the projection of the second plate (12) on the first plate (11) along the thickness direction of the wall is located inside the first plate (11), and the projection of the second plate (12) on the third plate (13) along the thickness direction of the wall is located inside the third plate (13); the side of the second plate (12) and the surfaces of the first plate (11) and the third plate (13) form a mounting groove (14), and the isolation plate (1) is mounted in cooperation with the wall through the mounting groove (14).

9. The cable isolation device according to claim 8, characterized in that: The first plate body (11) and the third plate body (13) are configured to be flame retardant materials, and the second plate body (12) is configured to be heat insulating material.

10. The cable isolation device according to claim 1, characterized in that: A mounting handle (5) is provided on the surface of the isolation plate (1) facing the high temperature zone.

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