Cable sheath and charging gun comprising same
By designing a structure with two first hollow sections and a locking section with an angle of less than 170 degrees in the inner components of the cable sheath, the problem of easy damage to traditional cable sheaths is solved, local deformation of the cable and convenient assembly are realized, and the service life and installation convenience of the cable are improved.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- DELTA ELECTRONICS INC(CN)
- Filing Date
- 2025-02-07
- Publication Date
- 2026-05-15
AI Technical Summary
The internal and external components of traditional cable sheaths are aligned on the same straight line, which makes the cable prone to damage at the curvature of the gun head, and the solid structure increases the difficulty of replacement.
The inner components of the cable sheath are designed with two first hollow sections, giving them deformable characteristics. The angle between the first and second engaging sections is less than 170 degrees. Combined with the multiple second hollow sections of the outer components, this allows for localized deformation of the cable and convenient assembly.
It reduces the damage rate of cables at small curvatures, improves assembly convenience and applicability, and adapts to adjustments for different cable outer diameters.
Smart Images
Figure CN2025076171_15052026_PF_FP_ABST
Abstract
Description
Cable sheath and its charging gun Technical Field
[0001] This invention relates to the field of charging guns, and more particularly to a cable sheath and its charging gun. Background Technology
[0002] The charging gun consists of a charging head, a cable, and a cable sheath. One end of the cable is connected to the inside of the charging head. The cable sheath covers and engages with the connection between the cable and the charging head to protect the connection. The cable sheath comprises inner and outer components. The inner component is located inside the charging head and engages with the inner wall of the charging head, covering part of the cable inside the charging head. The outer component is located outside the charging head and covers the remaining part of the cable outside the charging head. In traditional cable sheaths, the axes of the inner and outer components are aligned. When the charging head has curvature, the cable inside the inner component bends at an angle close to 90 degrees when inserted into the charging head, easily causing cable damage. Furthermore, traditional cable sheaths are solid, providing greater resistance to cable replacement.
[0003] Therefore, developing a cable sheath and its charging gun that overcomes the above-mentioned shortcomings is an urgent need at present. Summary of the Invention
[0004] The purpose of this invention is to provide a cable sheath and its charging gun. The internal components of the cable sheath include two first hollow sections, which makes the internal components deformable according to the arrangement of the first hollow sections. This allows the internal components to undergo local deformation when receiving the cable, so that the cable can be bent at a smaller specified curvature, reducing its damage rate and improving the convenience of positioning and assembly.
[0005] To achieve the above objectives, one embodiment of the present invention is a cable sheath connected between a charging gun head and a cable, comprising an inner component and an outer component. The inner component includes a first engaging portion, a second engaging portion, and two first recessed portions. The first engaging portion has a first through-hole portion extending along the axial direction of the first engaging portion, and the center of the first through-hole portion has a first axis. The second engaging portion has a second through-hole portion extending along the axial direction of the second engaging portion, and the center of the second through-hole portion has a second axis, with an angle less than 170 degrees between the second axis and the first axis. The two first recessed portions are located at the connection between the first and second engaging portions and are inserted into the wall surface of the inner component, wherein each first recessed portion has a width in the direction from the first engaging portion toward the second engaging portion. The outer component includes a wall surface, a third through-hole portion, and a plurality of second recessed portions, the third through-hole portion extending along the axial direction of the outer component, and the plurality of second recessed portions inserted into the wall surface.
[0006] To achieve the above objectives, another embodiment of the present invention is a charging gun, comprising a charging gun head, a cable, and a cable sheath. At least a portion of the cable is connected inside the charging gun head. The cable sheath is connected between the charging gun head and the cable, and includes an inner component and an outer component. The inner component includes a first engaging portion, a second engaging portion, and two first recessed portions. The first engaging portion has a first through-hole portion that passes through the axial direction of the first engaging portion, and the center of the first through-hole portion has a first axis. The second engaging portion has a second through-hole portion that passes through the axial direction of the second engaging portion, and the center of the second through-hole portion has a second axis, and the second axis has an angle with the first axis, the angle being less than 170 degrees. The two first recessed portions are located at the connection between the first engaging portion and the second engaging portion, and pass through the wall surface of the inner component, wherein each first recessed portion has a width in the direction from the first engaging portion toward the second engaging portion. The outer component includes a wall surface, a third through-hole, and multiple second hollow sections. The third through-hole is inserted in the axial direction of the outer component, and the multiple second hollow sections are inserted in the wall surface. Attached Figure Description
[0007] Figure 1 is a schematic diagram of the charging gun of the present invention;
[0008] Figure 2 is a schematic diagram of the cable sheath of the charging gun shown in Figure 1;
[0009] Figure 3 is a side view of the cable sheath of the charging gun shown in Figure 2; and
[0010] Figure 4 is a top view of the cable sheath of the charging gun shown in Figure 2.
[0011] In the attached drawings, the following reference numerals are used: 1: Cable sheath; 2: Cable; D: Outer diameter; 3: Charging gun head; 31: Inner ring groove; 4: Inner component; 41: First engaging part; 411: Outer ring protrusion; 412: First through part; X1: First axis line; 42: Second engaging part; 421: Second through part; X2: Second axis line; A: Angle; 422: Waterproof ring; 422a: Recess; 43: First hollow part; B: First width; 44: Connecting part; C: Second width; 5: Outer component; 51: Wall surface; 52: Third through part; 53: Second hollow part; X3: Third axis line; 9: Charging gun. Detailed Implementation
[0012] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different forms without departing from the scope of the present invention, and the descriptions and drawings herein are for illustrative purposes only and not for limiting the present invention.
[0013] Please refer to Figures 1 to 3, where Figure 1 is a structural schematic diagram of the charging gun of the present invention, Figure 2 is a structural schematic diagram of the cable sheath shown in Figure 1, and Figure 3 is a side view of the cable sheath shown in Figure 2. As shown in Figure 1, the charging gun 9 of the present invention includes a cable 2, a charging gun head 3, and a cable sheath 1. The cable 2 is connected to a power supply device (not shown) to transmit electrical energy provided by the power supply device. The charging gun head 3 is connected to the cable 2 to receive the electrical energy transmitted by the cable 2 and to supply power to a charging device (not shown). The cable sheath 1 is used to cover the cable 2 and is engaged in the inner annular groove 31 inside the charging gun head 3, wherein a portion of the cable 2 is inserted and connected inside the charging gun head 3, and the other portion of the cable 2 is exposed outside the charging gun head 3, wherein the cable 2 has an outer diameter D.
[0014] As shown in Figures 1 and 2, the cable sheath 1 is connected between the charging gun head 3 and the cable 2, and includes an inner component 4 and an outer component 5. The cable sheath 1 uses the inner component 4 to cover part of the cable 2 located inside the charging gun head 3 and engages with the inner ring groove 31 inside the charging gun head 3, and uses the outer component 5 to cover part of the cable 2 exposed outside the charging gun head 3. In this embodiment, the inner component 4 and the outer component 5 are integrally formed. As shown in Figure 3, the inner component 4 includes a first engaging part 41, a second engaging part 42, and two first hollow parts 43. The first engaging part 41 is a ring structure and has multiple outer ring protrusions 411 and first through parts 412. Each outer ring protrusion 411 is formed by protruding from the outer surface of the first engaging part 41. The inner component 4 uses the outer ring protrusions 411 of the first engaging part 41 to mate with the corresponding inner ring groove 31 in the charging gun head 3, so that the inner component 4 engages with the charging gun head 3. The first through-part 412 is inserted in the axial direction of the first engaging part 41 and is used to receive a portion of the cable 2 located inside the charging gun head 3. The center of the first through-part 412 has a first axis X1, and the extension direction of the first axis X1 is the same as the extension direction of the portion of the cable 2 located inside the charging gun head 3, as shown in Figure 3.
[0015] As shown in Figures 2 and 3, the second engaging portion 42 is an annular structure and has a second through portion 421. The second through portion 421 passes through the axial direction of the second engaging portion 42 and is connected to the first through portion 412 to accommodate another part of the cable 2 located inside the charging gun head 3. The center of the second through portion 421 has a second axis X2. The extension direction of the second axis X2 is the same as the extension direction of the part of the cable 2 located outside the charging gun head 3. The second axis X2 and the first axis X1 have an included angle A, which is less than 170 degrees. As shown in Figure 3, in one embodiment, the included angle A is between 140 and 170 degrees. In this embodiment, the second engaging portion 42 further includes a waterproof ring 422, which protrudes from the outer surface of the second engaging portion 42 and surrounds the outer surface of the second engaging portion 42 to prevent external moisture from entering the interior of the charging head 3 when the inner component 4 is engaged within the charging head 3. The waterproof ring 422 includes at least one recess 422a, the included angle of which faces the first engaging portion 41. In this embodiment, the inner diameter of the first engaging portion 41 and / or the inner diameter of the second engaging portion 42 may be equal to the outer diameter D of the cable 2.
[0016] Two first hollow portions 43 are located at the connection between the first engaging portion 41 and the second engaging portion 42, and are respectively provided through the side walls of the inner component 4, so that the communication between the first through portion 412 of the first engaging portion 41 and the second through portion 421 of the second engaging portion 42 can be exposed through the first hollow portions 43. The inner component 4 has deformable characteristics according to the arrangement of the first hollow portions 43, so that the inner component 4 undergoes local deformation when receiving the cable 2. Therefore, the cable 2 can be bent at a smaller specified curvature, reducing its damage rate and improving the convenience of positioning and assembly. In this embodiment, each first hollow portion 43 has a first width B in the direction from the first engaging portion 41 toward the second engaging portion 42. In one embodiment, the first width B of the first hollow portion 43 is related to the outer diameter D of the cable 2, for example, it is 15% of the outer diameter D of the cable 2.
[0017] The outer component 5 has a wall surface 51, a third through-hole 52, and a plurality of second recesses 53. The outer diameter of the wall surface 51 at the end adjacent to the inner component 4 is larger than the outer diameter at the end of the wall surface 51 away from the inner component 4, thus forming a barrel-shaped structure for the outer component 5. The third through-hole 52 passes through the outer component 5 in the axial direction and communicates with the second through-hole 421 and the first through-hole 412 to accommodate a portion of the cable 2 located outside the charging gun head 3. The center of the third through-hole 52 has a third axis X3, which is a straight line with the second axis X2. Each second recess 53 passes through the wall surface 51 of the outer component 5, exposing the third through-hole 52 of the outer component 5 through the second recess 53. The direction in which each second recess 53 is formed is the same as the direction in which the wall surface 51 is recessed toward the third through-hole 52, and this direction is perpendicular to the third axis X3. In this embodiment, the positions of the plurality of second empty baskets 53 are divided into three layers along the direction of the third axis X3. Each layer contains two second empty baskets 53. The two second empty baskets 53 in each layer are staggered with the two second empty baskets 53 in the adjacent layer. For example, the two second empty baskets 53 in the first layer are staggered with the two second empty baskets 53 in the second layer, and the two second empty baskets 53 in the second layer are staggered with the two second empty baskets 53 in the third layer.
[0018] Please refer to Figure 4 in conjunction with Figures 1 to 3, where Figure 4 is a top view of the cable sheath shown in Figure 2. As shown, the inner component 4 further includes two connecting portions 44, which are arranged opposite to each other. Each connecting portion 44 is connected between the first engaging portion 41 and the second engaging portion 42, and is located between the two first hollow portions 43. Each connecting portion 44 has a second width C in the radial direction of the inner component 4. In one embodiment, the second width C of the connecting portion 44 is related to the outer diameter D of the cable 2. For example, the second width C is greater than 3 mm and is 25% to 30% of the outer diameter D of the cable 2.
[0019] In summary, the charging gun of the present invention has a cable sheath, the internal components of which include two first hollow portions. This allows the internal components to be deformable according to the arrangement of the first hollow portions, resulting in localized deformation when the cable is received. Therefore, the cable can be bent at a smaller specified curvature, reducing its damage rate and improving the convenience of positioning and assembly. Furthermore, the first width of the first hollow portion and the second width of the connecting portion of the cable sheath of the charging gun of the present invention are both related to the outer diameter of the cable. The first width of the first hollow portion and the second width of the connecting portion can be adjusted according to the outer diameter of the cable, allowing the cable sheath to simultaneously possess the ability to deform locally during assembly while maintaining sufficient rigidity to allow the cable to be bent at a specified curvature, thereby improving its applicability.
[0020] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above, which are merely illustrative and not restrictive. This application may have other various embodiments. Without departing from the spirit and essence of this application, those skilled in the art can make various corresponding changes and modifications based on this application, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.
Claims
1. A cable sheath, characterized in that: Connected between a charging gun head and a cable, and comprising: An internal component, comprising: A first engaging portion has a first through portion, the first through portion being through the axial direction of the first engaging portion, and the center of the first through portion having a first axis line; A second engaging portion has a second through portion that passes through the axial direction of the second engaging portion, and the center of the second through portion has a second axis line, the second axis line having an included angle with the first axis line, the included angle being less than 170 degrees; and Two first empty compartments are located at the connection between the first engaging portion and the second engaging portion, and pass through the wall surface of the inner component, wherein each first empty compartment has a width in the direction from the first engaging portion toward the second engaging portion; and An outer component includes a wall surface, a third through-hole portion, and a plurality of second hollow portions. The third through-hole portion passes through the axial direction of the outer component, and the plurality of second hollow portions pass through the wall surface.
2. The cable sheath as described in claim 1, characterized in that: The first engaging portion includes multiple outer ring protrusions, each of which is formed by an outer surface protruding from the first engaging portion.
3. The cable sheath as described in claim 1, characterized in that: The second engaging portion includes a waterproof ring, which is formed by protruding from an outer surface of the second engaging portion and surrounds the outer surface of the second engaging portion. The waterproof ring includes at least one recess, and the included angle opening of the at least one recess faces the first engaging portion.
4. The cable sheath as described in claim 1, characterized in that: The angle between the second axis and the first axis is between 140 and 170 degrees.
5. The cable sheath as described in claim 1, characterized in that: The center of the third through part has a third axis line, which is a straight line with the second axis line.
6. The cable sheath as described in claim 5, characterized in that: The positions of the plurality of second empty sections are divided into n layers along the direction of the third axis. The second empty section in each layer is staggered with the second empty section in the adjacent layer, where n is greater than or equal to 3.
7. The cable sheath as described in claim 1, characterized in that: The internal component includes two connecting parts, which are arranged opposite to each other. Each connecting part is connected between the first engaging part and the second engaging part, and is located between the two first hollow parts.
8. A charging gun, characterized in that: Include: One charging gun head; A cable, wherein at least a portion of the cable is connected to the charging gun head; and A cable sheath, connected between a charging gun head and a cable, and comprising: An internal component, comprising: A first engaging portion has a first through portion, the first through portion being through the axial direction of the first engaging portion, and the center of the first through portion having a first axis line; A second engaging portion has a second through portion that passes through the axial direction of the second engaging portion, and the center of the second through portion has a second axis line, the second axis line having an included angle with the first axis line, the included angle being less than 170 degrees; and Two first empty compartments are located at the connection between the first engaging portion and the second engaging portion, and pass through the wall surface of the inner component, wherein each first empty compartment has a width in the direction from the first engaging portion toward the second engaging portion; and An outer component includes a wall surface, a third through-hole portion, and a plurality of second hollow portions. The third through-hole portion passes through the axial direction of the outer component, and the plurality of second hollow portions pass through the wall surface.
9. The charging gun as described in claim 8, characterized in that: The first axis of the first through-hole extends in the same direction as the cable extending in the portion located inside the charging gun head.
10. The charging gun as described in claim 8, characterized in that: The inner diameter of the first engaging portion and / or the inner diameter of the second engaging portion are equal to the outer diameter of the cable.
11. The charging gun as described in claim 8, characterized in that: Each of the first slots has a first width in the direction from the first engaging portion toward the second engaging portion, the first width being 15% of the outer diameter of the cable.
12. The charging gun as described in claim 8, characterized in that: The internal component includes two connecting parts, which are arranged opposite to each other. Each connecting part is connected between the first engaging part and the second engaging part, and is located between the two first hollow parts.
13. The charging gun as described in claim 12, characterized in that: Each of the connecting portions has a second width in the radial direction of the inner component, the second width being 25% to 30% of the outer diameter of the cable.