A housing for a D-SUB connector

Abstract

This utility model discloses a housing suitable for D-SUB connectors, including a housing body and two connecting bolts. Connecting ears are correspondingly provided on both sides of the front end of the housing body. The housing body includes an upper housing and a lower housing that mate with each other, and a bolt and nut assembly for fixing the upper and lower housings. Lower locking ears are provided on both sides of the lower housing, and the upper surface of the lower locking ears has a lower arc groove. At least one set of two fasteners arranged opposite each other and extending above the opening are provided on both sides of the lower arc groove. The two fasteners in the same set cooperate to form a flared structure. Upper locking ears are correspondingly provided on both sides of the upper housing, which mate with the lower locking ears to form connecting ears. The lower surface of the upper locking ears has an upper arc groove that mates with the lower arc groove to form a through channel, and a receiving opening for the fasteners to be inserted. This utility model simplifies assembly and improves production efficiency by directly snapping the connecting bolts into the flared opening of the lower housing, eliminating six hardware parts compared to existing housing structures.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a housing suitable for D-SUB connectors. Background Technology

[0002] D-SUB connectors are a type of connector whose concept originated from military connectors over 40 years ago and has since been widely used in commercial and military fields. However, existing housing designs for D-SUB connectors are poorly designed and have many components, often including two plastic shells and 12 metal fittings, resulting in cumbersome assembly, low production efficiency, and room for improvement. Utility Model Content

[0003] The present invention aims to overcome the defects in the prior art and provide a housing suitable for D-SUB connectors. By constructing a flared structure on the lower locking lug of the lower housing for locking the connecting bolt, the connecting bolt can be locked onto the lower housing without easily falling off. Compared with the existing housing structure, it can save six hardware parts, greatly reduce the number of parts, simplify assembly, and improve production efficiency.

[0004] To achieve the above objectives, this utility model provides a housing suitable for D-SUB connectors, including a housing body and two connecting bolts passing through both sides of the housing body. Connecting ears are correspondingly provided on both sides of the front end of the housing body. The housing body includes an upper housing and a lower housing that fit together, and a bolt and nut assembly for fixing the upper and lower housings. The lower housing is provided with lower locking lugs on both sides of the front end, and the upper surface of the lower locking lugs is provided with a lower arc groove. At least one set of two fasteners arranged opposite to each other and extending to the top of the opening are provided on both sides of the lower arc groove. The two fasteners in the same set cooperate to form a flared structure for locking the connecting bolt. The upper housing has upper locking ears on both sides of the front end, which cooperate with the lower locking ears to form connecting ears. The lower surface of the upper locking ears has an upper arc groove that mates with the lower arc groove to form a through channel, and an accommodating opening for fasteners to be inserted.

[0005] The further configuration is that the front end face of the nut of the connecting bolt and the rear end face of the connecting lug are both planar structures.

[0006] A further provision is made: the connecting bolt is provided with an anti-detachment ring to prevent it from coming out of the flared end.

[0007] The further configuration includes: a wire outlet portion is provided at the rear of the shell body, and the inner wall of the wire outlet portion is provided with a spike-like or tooth-like structure for gripping the outer sheath of the wire.

[0008] The configuration is further defined as follows: the wire outlet of the shell body is formed by the mating of an upper insert on the upper shell and a corresponding lower insert on the lower shell. The upper insert is provided with an upper groove having a spike-like or tooth-like structure, and the lower insert is provided with a lower groove opposite to the upper groove having a spike-like or tooth-like structure.

[0009] The upper insert is further configured such that: the upper insert includes a plurality of spaced upper clamping ribs, and each upper clamping rib is provided with an upper groove; The lower insert includes several lower clamping ribs arranged in a one-to-one correspondence with the upper clamping ribs, and each lower clamping rib is provided with a lower groove.

[0010] The upper insert is further configured such that it is integrally connected to the upper housing, or the upper insert is detachably mounted on the upper housing. The lower insert is integrally connected to the lower housing, or the lower insert is detachably mounted on the lower housing.

[0011] The lower housing is further configured such that a lower sleeve is provided on the lower housing, and an upper sleeve is provided on the upper housing to be fitted and engaged with the lower sleeve. The lower sleeve and the upper sleeve cooperate to form a channel for bolts to pass through.

[0012] Compared with the prior art, this utility model has a simple and reasonable structure. By constructing a flared structure on the lower locking lug of the lower housing to hold the connecting bolt, the connecting bolt can be firmly locked onto the lower housing without easily falling off. Compared with the existing housing structure, it can save six hardware parts, greatly reduce the number of parts, simplify assembly, and improve production efficiency. At the same time, by using multiple sets of barbed or toothed structures inside the wire outlet to bite the outer sheath of the wire, it can prevent the wire core or solder joint from being pulled off, thereby ensuring the stability of the connector. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a housing suitable for a D-SUB connector according to the present invention; Figure 2 This is a schematic diagram of the separated structure of the outer shell.

[0014] The following reference numerals are marked on the accompanying drawings: 10. Shell body; 11. Mounting part; 12. Cable exit part; 13. Connecting ear; 20. Connecting bolt; 21. Nut; 22. Anti-detachment ring; 30. Lower shell; 31. Lower locking ear; 311. Lower arc groove; 312. Fastener; 313. Flared mouth; 32. Lower insert; 321. Lower clamping wire rib; 322. Upper groove; 33. Lower sleeve; 40. Upper shell; 41. Upper locking ear; 411. Upper arc groove; 412. Reception opening; 42. Upper insert; 421. Upper clamping wire rib; 422. Upper groove; 43. Upper sleeve; 50. Bolt and nut assembly. Detailed Implementation

[0015] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0016] This utility model provides a housing suitable for D-SUB connectors, such as... Figure 1 As shown, the device includes a housing body 10 and two connecting bolts 20 passing through both sides of the front end of the housing body 10. The front part of the housing body 10 is provided with an insert part 11 for mounting a D-SUB connector, and the rear part is provided with an outlet part 12 for the wire connected to the D-SUB connector to extend out. Connecting ears 13 are provided on both sides of the front end of the housing body 10. The two connecting bolts 20 pass through the connecting ears 13 and are screwed into the metal shell of the D-SUB connector to tighten and fix the D-SUB connector to the front end of the housing body 10. The inner wall of the outlet part 12 is provided with a barbed or toothed structure for biting the outer sheath of the wire (i.e., the outer wrapping layer of the wire harness), so as to prevent the wire core or solder joint from being pulled off.

[0017] In this embodiment, as Figure 2As shown, the shell body 10 includes an upper shell 40 and a lower shell 30 that fit together, and two sets of bolt and nut groups 50 for fixing the upper and lower shells 30. The lower shell 30 has lower locking lugs 31 on both sides of its front end, and the upper surface of each lower locking lug 31 has a lower arc groove 311. At least one set of two fasteners 312 arranged opposite each other and extending above the opening are provided on both sides of the lower arc groove 311. The two fasteners 312 in the same set cooperate to form a flared opening 313 structure for locking the connecting bolt 20. During assembly, by directly inserting the connecting bolt 20 into the flared opening 313 of the lower locking lug 31, it can be installed on the lower shell without easily falling off. Compared to the existing housing structure, this eliminates six hardware components, greatly reducing the number of parts, simplifying assembly, and improving production efficiency. Preferably, the connecting bolt 20 is provided with an anti-slip ring 22 on the screw in front of the fastener 312 to prevent the connecting bolt 20 from sliding backward and coming out of the flared opening 313 between the fasteners 312, so that the connecting bolt 20 can be connected to the housing body 10 without being lost. More preferably, the outer diameter of the anti-slip ring 22 is adapted to the inner diameter of the through-channel, so as to ensure that the connecting bolt 20 extends horizontally through the connecting ear 13, thereby facilitating the alignment and connection of the connecting bolt 20 with the hole on the D-SUB connector housing.

[0018] In the above scheme, such as Figure 2 As shown, the upper housing 40 has upper locking ears 41 on both sides of the front end, which cooperate with the lower locking ears 31 to form connecting ears 13. The lower surface of the upper locking ears 41 has an upper arc groove 411 that mates with the lower arc groove 311 to form a through channel, and a receiving opening 412 for the fastener 312 to be inserted. In this way, the positioning and installation between the upper housing 40 and the lower housing 30 can be achieved by the cooperation of the fastener 312 and the receiving opening 412.

[0019] In this embodiment, the front end face of the nut 21 of the connecting bolt 20 and the rear end face of the connecting lug 13 of the shell body 10 are both planar structures, that is, the end faces of the nut 21 and the connecting lug 13 that abut against each other are in planar fit.

[0020] In this embodiment, as Figure 2As shown, the lower shell 30 has a lower insert 32 corresponding to its rear, and the lower insert 32 has a lower groove 322 with a spike-like or tooth-like structure. The upper shell 40 has an upper insert 42 corresponding to its rear, and the upper insert 42 has an upper groove 422 with a spike-like or tooth-like structure. Thus, when the upper shell 40 and the lower shell 30 are engaged, the lower groove 322 on the lower insert 32 and the upper groove 422 on the upper insert 42 cooperate to form the wire outlet 12 of the shell body 10. Preferably, the lower insert 32 includes a plurality of spaced lower wire clamping ribs 321, each of which has a lower groove 322 with a spike-like or tooth-like structure. The upper insert 42 includes... Several upper clamping ribs 421 are arranged one-to-one with the lower clamping ribs 321. Each upper clamping rib 421 is provided with an upper groove 422 with a barbed or toothed structure. In this way, the outer sheath of the wire is clamped and held in multiple segments, which can better prevent the wire from shifting and thus prevent the wire core or solder joint from being pulled apart. In this embodiment, the upper insert 42 and the lower insert 32 are integrally connected to the upper housing 40 and the lower housing 30, respectively. In some other embodiments, the upper insert 42 and the lower insert 32 are detachably installed on the upper housing 40 and the lower housing 30, respectively. In this way, by replacing the upper and lower inserts 32 with different OD sizes, it can be adapted to clamp wires of different diameters.

[0021] In this embodiment, as Figure 2 As shown, the lower housing 30 is provided with two lower sleeves 33 spaced laterally (left and right are horizontal, front and back are vertical), and the upper housing 40 is provided with an upper sleeve 43 that corresponds to and fits into the lower sleeves 33. The lower sleeves 33 and the upper sleeves 43 cooperate to form a channel for bolts to pass through. The lower surface of the lower housing 30 is provided with a notch for a hexagonal nut to be fitted into the lower sleeve 33. The bolt is inserted into the upper housing 40 and passes through the channel formed by the cooperation of the upper sleeves 43 and the lower sleeves 33, and is then screwed into the hexagonal nut in the notch to fix the upper housing 40 and the lower housing 30. Preferably, one of the two upper sleeves 43 is inserted into the lower sleeve 33 and the other is fitted onto the outside of the lower sleeve 33.

[0022] Compared with the prior art, this utility model has a simple and reasonable structure. By constructing a flared structure on the lower locking lug of the lower housing to hold the connecting bolt, the connecting bolt can be firmly locked onto the lower housing without easily falling off. Compared with the existing housing structure, it can save six hardware parts, greatly reduce the number of parts, simplify assembly, and improve production efficiency. At the same time, by using multiple sets of barbed or toothed structures inside the wire outlet to bite the outer sheath of the wire, it can prevent the wire core or solder joint from being pulled off, thereby ensuring the stability of the connector.

[0023] The above-disclosed embodiments are merely examples of the present utility model. However, the present utility model is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A housing for a D-SUB connector, comprising a housing body and two connecting bolts passing through both sides of the housing body, wherein connecting ears are provided on both sides of the front end of the housing body, and the housing body includes an upper housing and a lower housing that fit together, and a bolt and nut assembly for fixing the upper and lower housings together. Its features are, The lower housing is provided with lower locking lugs on both sides of the front end, and the upper surface of the lower locking lugs is provided with a lower arc groove. At least one set of two fasteners arranged opposite to each other and extending to the top of the opening are provided on both sides of the lower arc groove. The two fasteners in the same set cooperate to form a flared structure for locking the connecting bolt. The upper housing has upper locking ears on both sides of the front end, which cooperate with the lower locking ears to form connecting ears. The lower surface of the upper locking ears has an upper arc groove that mates with the lower arc groove to form a through channel, and an accommodating opening for fasteners to be inserted.

2. A housing for a D-SUB connector according to claim 1, characterized in that, The front end face of the nut and the rear end face of the connecting lug of the connecting bolt are both planar structures.

3. A housing for a D-SUB connector according to claim 1 or 2, characterized in that, The connecting bolt is provided with an anti-detachment ring to prevent it from coming out of the flared end.

4. A housing for a D-SUB connector according to claim 1, characterized in that, The rear part of the shell body is provided with a wire outlet, and the inner wall of the wire outlet is provided with a barbed or toothed structure for biting the outer sheath of the wire.

5. A housing for a D-SUB connector according to claim 4, characterized in that, The wire outlet of the shell body is formed by the mating of an upper insert on the upper shell and a corresponding lower insert on the lower shell. The upper insert has an upper groove with a spike-like or tooth-like structure, and the lower insert has a lower groove opposite to the upper groove and with a spike-like or tooth-like structure.

6. A housing for a D-SUB connector according to claim 5, characterized in that, The upper insert includes a number of spaced upper clamping ribs, and each upper clamping rib is provided with an upper groove. The lower insert includes several lower clamping ribs arranged in a one-to-one correspondence with the upper clamping ribs, and each lower clamping rib is provided with a lower groove.

7. A housing for a D-SUB connector according to claim 5 or 6, characterized in that, The upper insert is integrally connected to the upper housing, or the upper insert is detachably mounted on the upper housing; The lower insert is integrally connected to the lower housing, or the lower insert is detachably mounted on the lower housing.

8. A housing for a D-SUB connector according to claim 1, characterized in that, The lower housing is provided with a lower sleeve, and the upper housing is provided with an upper sleeve that is fitted and engaged with the lower sleeve. The lower sleeve and the upper sleeve cooperate to form a channel for bolts to pass through.

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