A via connector

Abstract

The utility model provides a via hole connector relates to connector technical field, including the shell for cable axial wear, the hose joint for fixed bellows and set up in the crimping sleeve of shell, crimping sleeve cooperation sets up on cable, the outer surface of crimping sleeve and the inner surface of shell contact, shell and cable realize intercommunication through the cable shield silk of crimping in crimping sleeve, and the hose joint is connected with shell through thread structure or buckle structure cooperation connection. This via hole connector part quantity is few, saves the cost, improves assembly efficiency, and installation is convenient and efficient, and has good shielding effect.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a through-hole connector. Background Technology

[0002] High-current through-hole connectors are widely used in the cable interfaces of multi-purpose enclosures for electrification in engineering machinery. Their main functions include sealing the connector to the enclosure; sealing the connector to the cable; shielding and current-carrying the cable to the enclosure; and simultaneously securing and quickly removing the cable's external corrugated tubing.

[0003] Among existing through-hole connectors, patent document CN109546609B discloses a double-locking quick-connect electromagnetic compatibility connector, such as... Figure 1 As shown.

[0004] Its shortcomings are: 1. The tail-end fixed corrugated tube structure is a semi-ring snap-fit ​​type. The snap-fit ​​length is insufficient and the snap-fit ​​joint is weak. During use, the corrugated tube is prone to falling off, causing the cable to be directly exposed to the environment, which affects the safety performance of the equipment.

[0005] 2. The shielding structure is simple, resulting in poor current flow. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a through-hole connector with a stable and reliable structure and good shielding effect.

[0007] To achieve the above technical objectives, the technical solution adopted is: a through-hole connector, including a housing for axial insertion of a cable, a flexible hose connector for fixing a corrugated tube, and a crimping sleeve disposed within the housing. The crimping sleeve is fitted onto the cable, and the outer surface of the crimping sleeve contacts the inner surface of the housing. The housing and the cable are connected through a cable shield wire crimped within the crimping sleeve. The flexible hose connector is connected to the housing through a threaded structure or a snap-fit ​​structure.

[0008] The beneficial effects are: this through-hole connector has fewer parts, saving costs, improving assembly efficiency, and making installation convenient and efficient. The overall structure is compact and easy to install, featuring a one-piece direct-plug design. The shielding wire is installed and connected to the flexible conduit via a one-piece housing; the cable shielding wire connects to the housing through a crimp sleeve, providing excellent shielding. The flexible conduit replaces the snap-fit ​​structure for fixing the bellows, achieving a stable and reliable connection. The housing itself also directly contacts the enclosure, further enhancing the shielding connection effect.

[0009] The crimping sleeve consists of an outer crimping sleeve and an inner crimping sleeve. The inner crimping sleeve is installed inside the outer crimping sleeve, so that an installation space for installing the cable shielding wire is formed between the outer crimping sleeve and the inner crimping sleeve.

[0010] The beneficial effects are: by crimping the cable shielding wire between the outer crimping sleeve and the inner crimping sleeve, the double-layer crimping structure is more stable than the single-layer crimping of the existing technology, and the shielding and current-passing effect is better because it is connected to the shell through the gap of the crimping sleeve.

[0011] The outer pressure sleeve is equipped with claws. As the outer pressure sleeve is pushed into the housing, the claws are squeezed inward by the inner wall of the housing and thus fixed in the housing.

[0012] The beneficial effects are: setting the external pressure sleeve as a claw structure makes installation convenient and quick, and also ensures normal contact between the external pressure sleeve and the housing, resulting in more stable contact.

[0013] The outer side of the housing has a sealing ring mounting groove for installing a sealing ring, which is used to achieve a seal between the box and the housing.

[0014] The beneficial effects are: the sealing performance between the shell and the box is enhanced by the sealing ring, preventing water from entering the box and ensuring reliable sealing function.

[0015] The outer side of the housing has a shielding mounting groove for installing the shielding body.

[0016] The beneficial effects are: by adding a shield to the housing, which is in direct contact with the enclosure, the shielding current-carrying effect of the connector is further increased. This shielded connection circuit can withstand short-term high current without overheating and burning, and the shielding current-carrying effect is significantly enhanced.

[0017] The shielding body has a spring-loaded structure and makes elastic contact with the enclosure.

[0018] The beneficial effects are: the shielding spring contacts the housing in a spring-type contact, resulting in a large contact area, low contact resistance, and excellent shielding current-carrying effect.

[0019] The housing has a sealing body mounting groove for installing the sealing body, which is used to achieve a seal between the cable and the housing.

[0020] The beneficial effect is that the sealing body enhances the sealing effect between the housing and the cable, preventing water from entering the box from between the cable and the housing.

[0021] The housing is provided with a fixing part for connecting to the box body, and the fixing part has a connection hole for bolt connection with the box body.

[0022] The beneficial effect is that the fixing part further stabilizes the connection with the box.

[0023] The hose connector consists of a connecting outer shell and a connecting inner shell that are fitted together. The connecting outer shell has a limiting hole, and the connecting inner shell has a bellows buckle. The upper part of the bellows buckle has a limiting part for locking in the limiting hole, and the lower part has a buckle part for locking the bellows. The bellows is unlocked when the bellows buckle is pulled outward from the limiting hole.

[0024] The beneficial effects are: the flexible hose connector of this structure can realize the fixing and unlocking of the bellows, the fixing structure is stable and fast, and the unlocking is convenient and quick.

[0025] The inner surface of the connecting shell consists of two opposing inner planes and two opposing inner arc surfaces. The outer surface of the connecting shell with adjacent inner planes is set as the outer plane. Limiting holes are provided on the inner arc surfaces. The connecting inner shell has an opening in the axial direction. When the connecting inner shell is inserted into the connecting shell, the opening is set relative to the inner plane of the connecting shell.

[0026] The beneficial effects are: to address the issue of the axial width limitation of the cable guide, the axial width of the connecting shell is reduced, and an opening is made in the connecting inner shell, which correspondingly reduces the width of the connecting inner shell, thus accommodating larger cables while meeting the fixing strength requirements of the corrugated pipe.

[0027] The outer surface of the housing is provided with a limiting contact surface for contacting the side wall of the box.

[0028] The beneficial effects are: the sealing between the shell and the box can be initially achieved by limiting the contact surface, the sealing effect is increased by utilizing the structure of the shell itself, and it can also play a limiting role to prevent the shell from sliding in the mounting hole of the box. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the existing technology; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a cross-sectional view of the present invention; Figure 5 This is a schematic diagram of the structure of the shell of this utility model; Figure 6 This is a schematic diagram of the structure of the crimp sleeve of this utility model; Figure 7 This is a cross-sectional view of the hose connector of this utility model; Figure 8 This is another structural schematic diagram of the present invention; Figure 9 This is another exploded structural diagram of the present invention; Figure 10 This is another sectional view of the present invention; Figure 11 This is an exploded view of the hose connector of this utility model; Figure 12 This is a schematic diagram of another connecting shell of this utility model; Figure 13 This is a schematic diagram of another connection inner shell of this utility model; Figure 14 This is a cross-sectional schematic diagram of another type of hose connector according to the present invention; Figure 15 This is a schematic diagram of the sealing of this utility model; In the picture: 1. Cable; 101. Cable outer sheath; 102. Cable shielding layer; 103. Cable inner layer; 104. Cable core. 2. Crimping sleeve, 201. Outer crimping sleeve, 202. Inner crimping sleeve, 201-1. Claw; 3. Housing; 301. Sealing ring mounting groove; 302. Shielding body mounting groove; 303. Sealing wire body mounting groove; 304. Fixing part; 305. Connecting hole; 306. Limiting contact surface. 4. Hose connector, 401, connecting outer shell, 402, connecting inner shell, 401-1, limiting hole, 402-1, bellows buckle, 402-11, limiting part, 402-12, buckle part; 5. Corrugated pipe, 6. Sealing ring, 7. Box body, 8. Sealing line body. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0031] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] The structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0033] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] like Figure 2 , Figure 3 , Figure 8 , Figure 9 As shown, a through-hole connector includes a housing 3 for axial insertion of a cable 1, a flexible hose connector 4 for fixing a corrugated tube 5, and a crimp sleeve 2 disposed within the housing 3. The housing 3 can be directly inserted into the mounting hole of a housing 7 to achieve connection between the through-hole connector and the housing 7. Typically, the cable 1 has a four-layer structure from the inside out: an inner core 104, an inner sheath 103, a shielding layer 102, and an outer sheath 102. During use, the cable 1 outside the housing 7 is fitted with a corrugated tube. The outer sheath 102 of the cable 1 inside the housing 7 is stripped, and the inner core 104 and inner sheath 103 connect to the terminals inside the housing 7. The crimp sleeve 2 is fitted onto the cable 1, typically in a clearance fit, and serves to support and electrically connect the housing 3 and the cable 1. The outer surface of the crimp sleeve 2 contacts the inner surface of the housing 3. The housing 3 and the cable 1 are connected by the cable shielding wire 102 crimped inside the crimp sleeve 2. The flexible hose connector 4 is connected to the housing 3 through a threaded or snap-fit ​​structure. Figure 3 , Figure 5 As shown, one end of the hose connector 4 can be configured with an internal thread to connect with the internal thread of the housing 3. For example... Figure 8 , Figure 9 As shown, one end of the hose connector can be configured with a matching bayonet to connect with the snap fastener on the housing 3.

[0035] like Figure 6 As shown, the crimp sleeve 2 consists of an outer crimp sleeve 201 and an inner crimp sleeve 202. The inner crimp sleeve 202 is fitted inside the outer crimp sleeve 201, so that an installation space for installing the cable shield wire 102 is formed between the outer crimp sleeve 201 and the inner crimp sleeve 202. The inner crimp sleeve 202 is clearance fitted with the cable 1, and the outer surface of the outer crimp sleeve 201 is in contact with the housing.

[0036] like Figure 3 , Figure 6As shown, the outer pressure sleeve 201 is provided with a claw 201-1. As the outer pressure sleeve 201 is pushed into the housing 3, the claw 201-1 is squeezed inward by the inner wall of the housing 3 and thus fixed in the housing 3. The structural principle of the claw 201-1 is that one end is fixed and the other end is suspended, and it can be deformed in the direction of the center line under force.

[0037] like Figure 5 , Figure 15 As shown, a sealing ring mounting groove 301 is provided on the outer side of the housing 3 for installing the sealing ring 6, so as to achieve a seal between the box 7 and the housing 3. The number of sealing ring mounting grooves 301 is related to the thickness of the box, and the sealing ring mounting grooves 301 are located at the position closest to the outer side of the box 7.

[0038] like Figure 5 As shown, a shielding mounting groove 302 for mounting the shielding body 9 is provided on the outer side of the housing 3. The shielding body 9 is made of copper alloy. When the through-hole connector is installed with the housing 7, the shielding body 9 contacts the housing 7.

[0039] like Figure 3 , Figure 4 As shown, the shielding body 9 has a spring-loaded structure that makes elastic contact with the housing 7. The contact between the shielding spring and the housing 7 is spring-loaded, resulting in a large contact area and low contact resistance. The shielding body 9 is annular with spring-loaded tabs forming the spring-loaded structure.

[0040] like Figure 5 , Figure 15 As shown, the housing 3 is provided with a sealing body mounting groove 303 for installing the sealing body 8, which is used to achieve a seal between the cable 1 and the connecting housing. After installation, the protection level can meet IP68 & IPX9K.

[0041] like Figure 4 , Figure 10 As shown, the housing 3 is provided with a fixing part 304 for connecting with the box body 7, and the fixing part 304 has a connecting hole 305 for bolting connection with the box body 7.

[0042] like Figure 7 , Figure 3 , Figure 9As shown, the hose connector 4 has the function of quickly fixing and unlocking the bellows. The hose connector 4 consists of a connecting outer shell 401 and a connecting inner shell 402 that are sleeved together. The connecting outer shell 401 is provided with a limiting hole 401-1. The size of the limiting hole 401-1 is required to limit the limiting part 402-11, and also to ensure that pulling the small bellows buckle 402-1 does not affect the release of the limiting of the bellows 5. The connecting inner shell 402 is provided with a bellows buckle 402-1. The upper part of the bellows buckle 402-1 has a limiting part 402-11 for locking in the limiting hole 401-1, and the lower part has a buckle part 402-12 for locking the bellows 5. The buckle part 402-12 is fixed by locking in the trough of the bellows 5. Pulling the bellows buckle 402-1 outward from the limiting hole 401-1 unlocks the bellows 5. When the buckle part 402-12 secures the bellows 5, pulling the inner shell 402 outward causes the bellows buckle 402-1 connected to the inner shell 402 to be limited by the outer shell 401 and will not detach from the outer shell 401, thus securing the bellows 5 and preventing loosening. To unlock the bellows, manually reposition the buckle part 402-12 from the limiting hole 401-1, releasing the restriction on the bellows 5. Pulling the bellows 5 outward then allows for quick unlocking of the bellows.

[0043] like Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, when the multi-in-one housing has limitations on the axial width of the through-hole connector, but also requires compatibility with larger diameter cables, the inner surface of the connecting housing 401 consists of two opposing inner planes 401-2 and two opposing inner arc surfaces 401-3. The inner arc surfaces 401-3 are circular arc surfaces. The two inner planes 401-2 and the two inner arc surfaces 401-3 are symmetrically arranged. The outer surface of the connecting housing 401 adjacent to the inner planes 401-2 is set as the outer plane 401-4. That is, with the same diameter bellows 5, the axial width of this through-hole connector is significantly smaller, while with the same axial width, a larger diameter bellows and cables can be installed in this through-hole connector. A limiting hole 401-1 is provided on the inner arc surface 401-3, and the connecting inner housing 402 has an opening 402-2 in the axial direction. When the connecting inner housing 402 is inserted into the connecting housing 401, the opening 402-2 is positioned relative to the inner plane of the connecting housing 401. This structure is suitable for larger wire diameters while meeting strength requirements, enabling the corrugated pipe to be clamped in confined spaces.

[0044] like Figure 4 , Figure 10As shown, the outer surface of the housing 3 is provided with a limiting contact surface 306 for contacting the side wall of the box 7. The plane in contact between the box 7 and the limiting contact surface 306 is a vertical plane, so the limiting contact surface 306 is also a vertical plane, ensuring that the two fit together and playing the role of limiting and sealing.

[0045] The above are merely preferred embodiments of this utility model and are not intended to limit or restrict this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection declared by this utility model.

Claims

1. A through-hole connector, characterized in that: It includes a housing (3) for axial insertion of the cable (1), a flexible hose connector (4) for fixing the corrugated pipe (5), and a crimping sleeve (2) set inside the housing (3). The crimping sleeve (2) is fitted onto the cable (1). The outer surface of the crimping sleeve (2) is in contact with the inner surface of the housing (3). The housing (3) and the cable (1) are connected by the cable shielding wire (102) crimped inside the crimping sleeve (2). The flexible hose connector (4) is connected to the housing (3) through a threaded structure or a snap-fit ​​structure.

2. A through-hole connector as described in claim 1, characterized in that: The crimp sleeve (2) consists of an outer crimp sleeve (201) and an inner crimp sleeve (202). The inner crimp sleeve (202) is installed inside the outer crimp sleeve (201) to form an installation space for installing the cable shield wire (102) between the outer crimp sleeve (201) and the inner crimp sleeve (202).

3. A through-hole connector as described in claim 2, characterized in that: The outer pressure sleeve (201) is provided with a claw (201-1). As the outer pressure sleeve (201) is pushed into the housing (3), the claw (201-1) is squeezed inward by the inner wall of the housing (3) and thus fixed in the housing (3).

4. A through-hole connector as described in claim 1, characterized in that: The outer side of the housing (3) is provided with a sealing ring mounting groove (301) for installing the sealing ring (6) to achieve a seal between the box (7) and the housing (3).

5. A through-hole connector as described in claim 1, characterized in that: The outer side of the housing (3) is provided with a shielding mounting groove (302) for installing the shielding body (9).

6. A through-hole connector as described in claim 1, characterized in that: The shield (9) is a spring-loaded structure that makes elastic contact with the box (7).

7. A through-hole connector as described in claim 1, characterized in that: The housing (3) is provided with a sealing body mounting groove (303) for installing the sealing body (8) to achieve a seal between the cable (1) and the connecting housing.

8. A through-hole connector as described in claim 1, characterized in that: The housing (3) is provided with a fixing part (304) for connecting with the box (7), and the fixing part (304) has a connecting hole (305) for bolting with the box (7).

9. A through-hole connector as described in claim 1, characterized in that: The hose connector (4) consists of a connecting outer shell (401) and a connecting inner shell (402) that are sleeved together. The connecting outer shell (401) is provided with a limiting hole (401-1), and the connecting inner shell (402) is provided with a bellows buckle (402-1). The upper part of the bellows buckle (402-1) is provided with a limiting part (402-11) for locking in the limiting hole (401-1), and the lower part is provided with a buckle part (402-12) for locking the bellows (5). When the bellows buckle (402-1) is pulled outward from the limiting hole (401-1), the bellows (5) is unlocked.

10. A through-hole connector as described in claim 9, characterized in that: The inner surface of the connecting shell (401) consists of two opposing inner planes (401-2) and two opposing inner arc surfaces (401-3). The outer surface of the connecting shell (401) adjacent to the inner planes (401-2) is set as the outer plane (401-4). A limiting hole (401-1) is provided on the inner arc surface (401-3). The connecting inner shell (402) has an opening (402-2) in the axial direction. When the connecting inner shell (402) is inserted into the connecting shell (401), the opening (402-2) is set relative to the inner plane of the connecting shell (401).

11. A through-hole connector as described in claim 1, characterized in that: The outer surface of the housing (3) is provided with a limiting contact surface (306) for contacting the side wall of the box (7).

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