Multilayer data transmission connector

Abstract

The utility model discloses a multilayer data transmission connector, which comprises a TPA assembly, a sheath and at least two layers of terminal assemblies installed in the sheath, and is characterized in that a terminal fixing part is additionally arranged between two clamping parts on the basis of the existing TPA assembly consisting of a main body part and the clamping parts positioned on the two sides of the main body part; the terminal fixing part comprises at least two fixing parts which are arranged at intervals and a connecting part which connects the different fixing parts into an integrated structure, and the at least two fixing parts which are arranged at intervals and the connecting part are continuously arranged in the direction that the TPA assembly is arranged in the sheath; the at least two fixing parts which are arranged at intervals are respectively matched with the positioning grooves of the corresponding terminal assemblies, so that secondary locking of the at least two layers of terminal assemblies is realized, and secondary fixing of the terminals of the multi-layer connector can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a multi-layer data transmission connector. Background Art

[0002] In connectors, it is generally required that after the terminals are installed in the connector, they are also required to be fixed for a second time to provide a higher terminal retention force requirement, which requires a terminal position retaining device (TPA component) to be used in the connector. At present, other similar connectors at home and abroad generally use two relatively set TPA components to fix the terminals of different layers of connectors for a second time for double-layer connectors, which requires an insertion port to be opened at the top and bottom of the connector respectively. However, this setting method has the following technical problems: first, it causes the structural strength of the connector to be reduced, and second, this setting method cannot be applied to multi-layer connectors. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a multi-layer data transmission connector to solve the technical problems mentioned in the background technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-layer data transmission connector, including a TPA component, a sheath and at least two layers of terminal components installed in the sheath, the sheath is provided with an insertion port connected to the terminal cavity of the sheath, the TPA component includes a main body and clamping parts located on both sides of the main body, after the TPA component enters the terminal cavity through the insertion port, it is clamped and matched with the inner wall of the terminal cavity through the clamping part to realize the positioning of the TPA component in the pre-installed position or the locked position, the terminal assembly has a positioning groove recessed inward, the main body is provided with a terminal fixing part between the two clamping parts, the terminal fixing part includes at least two spaced fixing parts and a connecting part connecting different fixing parts into an integral structure, and the at least two spaced fixing parts and the connecting part are continuously arranged along the direction in which the TPA component is installed into the sheath, when the TPA component is in the locked position, the at least two spaced fixing parts respectively cooperate with the corresponding positioning grooves of the terminal assembly to realize the secondary locking of the at least two layers of terminal assemblies.

[0005] In some embodiments, the terminal assembly includes a terminal body and a cable conductively connected to the terminal body, the terminal body includes a conductive segment, a connecting segment and a crimping segment for connecting the cable arranged in sequence, the positioning groove is formed on the connecting segment, and when the TPA assembly is in a locked position, the fixing portion is at least partially accommodated in the positioning groove and cooperates with the side wall stop of the positioning groove to prevent the terminal assembly from withdrawing from the sheath.

[0006] In some embodiments, the fixing portion has an arcuate surface that matches the shape of the crimping section, and when the TPA assembly is in the locked position, the arcuate surface of the fixing portion is pressed against the outside of the crimping section.

[0007] In some embodiments, a crimping piece is pressed together on the outer side of the terminal body and the cable, and an end surface of the fixing portion facing the crimping piece is recessed inward to form an arc groove for avoiding the crimping piece.

[0008] In some embodiments, reinforcing ribs are commonly disposed on at least two interval-arranged fixing portions, the connecting portion, and the main body portion.

[0009] In some embodiments, a primary lock cantilever is provided on the inner wall of the sheath extending along the direction in which the terminal assembly is installed into the sheath, and a free end of the primary lock cantilever is snap-connected to the positioning groove.

[0010] In some embodiments, the primary lock cantilever and the terminal fixing portion are staggered in the circumferential direction of the terminal assembly.

[0011] In some embodiments, a card block is protruding from the outer side of one end of the card-connecting portion away from the main body, and a pre-installed card slot and a locking card slot are arranged at intervals on the inner wall of the terminal cavity. When the card block is connected to the pre-installed card slot, the TPA assembly is in the pre-installed position, and when the card block is connected to the locking card slot, the TPA assembly is in the locked position.

[0012] In some embodiments, at least one positioning block is provided on the outer edge of the main body, and the sheath is provided with a lap groove matching the positioning block on the outer side of the insertion port, and when the TPA assembly is in the locked position, the positioning block is embedded in the lap groove.

[0013] In some embodiments, at least one positioning block is provided with a notch, and the overlapping groove is provided with an inclined surface structure that exposes the notch.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the multi-layer data transmission connector of the utility model further adds a terminal fixing part between the two clamping parts on the basis of the existing TPA assembly composed of a main body and clamping parts located on both sides of the main body, and the terminal fixing part includes at least two spaced fixing parts and a connecting part connecting different fixing parts into an integrated structure, and at least two spaced fixing parts and the connecting part are continuously arranged along the direction in which the TPA assembly is installed into the sheath. When the TPA assembly is in the locked position, at least two spaced fixing parts respectively cooperate with the corresponding positioning grooves of the terminal assembly to realize secondary locking of at least two layers of terminal assemblies, thereby realizing secondary fixation of the terminals of the multi-layer connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0016] Figure 1 A schematic diagram of the structure of a multi-layer data transmission connector provided by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the cooperation between the TPA component and the terminal component in the multi-layer data transmission connector shown;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the TPA component in the multi-layer data transmission connector shown;

[0019] Figure 4 for Figure 1 The main view of

[0020] Figure 5 When the TPA assembly is in the pre-installed position, Figure 4 Section view along AA direction;

[0021] Figure 6 When the TPA assembly is in the locked position, Figure 4 Section view along AA direction;

[0022] Figure 7 for Figure 1 Left view of;

[0023] Figure 8 When the TPA assembly is in the locked position, Figure 7 Cross-sectional view along DD direction;

[0024] Fig. 9 for Figure 8 A local enlarged schematic diagram of point A in the middle.

[0025] The following are marked in the figure:

[0026] 10. TPA assembly; 101. main body; 102. clamping part; 103. clamping block; 104. positioning block; 105. notch;

[0027] 20. Sheath; 201. Terminal cavity; 202. Insertion port; 203. One-time lock cantilever; 204. Pre-installed card slot; 205. Locking card slot; 206. Overlap groove; 207. Inclined surface structure;

[0028] 30. Terminal assembly; 301. Positioning groove; 302. Conductive section; 303. Connecting section; 304. Crimping section; 305. Crimping piece;

[0029] 40, terminal fixing portion; 401, fixing portion; 402, connecting portion; 403, arc surface; 404, arc groove; 405, reinforcing rib;

[0030] 50. Direction of inserting the TPA assembly into the sheath. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] A multi-layer data transmission connector, such as Figure 1-Figure 9 As shown, it includes a TPA component 10, a sheath 20 and at least two layers of terminal components 30 installed in the sheath 20. The sheath 20 is provided with an insertion port 202 connected to the terminal cavity 201 of the sheath. The TPA component 10 includes a main body 101 and clamping parts 102 located on both sides of the main body 101. After the TPA component 10 enters the terminal cavity 201 through the insertion port 202, it is clamped with the inner wall of the terminal cavity 201 through the clamping parts 102 to achieve the positioning of the TPA component 10 in the pre-installed position or the locked position. After the TPA component 10 is installed in the sheath 20, the top of the main body 101 is 0.10mm lower than the upper surface of the sheath 20 to prevent the risk of the TPA component 10 being damaged due to being higher than the surface of the sheath 20 under the action of force. The terminal component 30 has a positioning groove 301 recessed inward, as shown in FIG. Figure 1 As shown, a primary lock cantilever 203 is provided on the inner wall of the sheath 20 extending along the direction in which the terminal assembly 30 is inserted into the sheath 20, and the free end of the primary lock cantilever 203 is snapped into the positioning groove 301. When the terminal assembly 30 is inserted into the sheath 20, the free end of the primary lock cantilever 203 is snapped into the positioning groove 301 to achieve a primary lock of the terminal assembly 30. Furthermore, the primary lock cantilever 203 and the terminal fixing portion 40 are staggered in the circumferential direction of the terminal assembly 30, thereby preventing the primary lock cantilever 203 from interfering with the insertion of the TPA assembly 10. Figure 3As shown, a terminal fixing portion 40 is provided between two clamping portions 102 of the main body 101, and the terminal fixing portion 40 includes at least two fixing portions 401 arranged at intervals and a connecting portion 402 connecting different fixing portions 401 into an integrated structure, and at least two fixing portions 401 arranged at intervals and the connecting portion 402 are continuously arranged along the direction 50 in which the TPA assembly is installed into the sheath. When the TPA assembly 10 is in the locked position, at least two fixing portions 401 arranged at intervals respectively cooperate with the corresponding positioning grooves 301 of the terminal assembly 30 to achieve secondary locking of at least two layers of terminal assemblies 30. The multi-layer data transmission connector of the utility model further adds a terminal fixing portion 40 between the two clamping portions 102 on the basis of the existing TPA assembly 10 composed of a main body 101 and clamping portions 102 located on both sides of the main body to achieve secondary locking of at least two layers of terminal assemblies, thereby achieving secondary fixing of the terminals of the multi-layer connector.

[0036] like Figure 2 As shown, the terminal assembly 30 includes a terminal body and a cable conductively connected to the terminal body. The terminal body includes a conductive segment 302, a connecting segment 303 and a crimping segment 304 for connecting the cable, which are arranged in sequence. The positioning groove 301 is formed in the connecting segment 303. When the TPA assembly 10 is in the locked position, the fixing portion 401 is at least partially accommodated in the positioning groove 301 and stops with the conductive segment 302, specifically, stops with the side wall of the positioning groove 301, so as to prevent the terminal assembly 30 from withdrawing from the sheath 20. For details, please refer to Figure 8 and Fig. 9 .

[0037] In one embodiment, if Figure 3 As shown, the fixing portion 401 has an arc surface 403 that matches the shape of the crimping section 304. When the TPA assembly 10 is in the locked position, the arc surface 403 of the fixing portion 401 is pressed against the outer side of the crimping section 304. For details, please refer to Figure 6 It can not only improve the stability of the TPA assembly 10 after being installed in the sheath 20, but also improve the holding force of the terminal assembly 30, preventing the fixing portion 401 from being deformed when the terminal assembly 30 is subjected to a pulling force, thereby causing the terminal assembly 30 to withdraw from the sheath 20.

[0038] Furthermore, if Figure 2 , Figure 3 and Fig. 9As shown, the terminal body and the outer side of the cable are pressed together with a crimping piece 305, and the end surface of the fixed portion 401 facing the crimping piece 305 is recessed inward to form an arc groove 404 for avoiding the crimping piece 305, thereby improving the compactness of the connector, reducing the volume of the connector, and improving its product competitiveness. In addition, the arc groove 404 can also limit the crimping piece 305 and the cable, thereby preventing the cable and the terminal assembly 30 from swinging in a large range when subjected to external force, causing the terminal assembly 30 to withdraw from the sheath 20.

[0039] In one embodiment, if Figure 3 As shown, reinforcing ribs 405 are commonly provided on at least two spaced apart fixing portions 401, the connecting portion 402 and the main body portion 101, which can further enhance the strength of the terminal fixing portion 40 and prevent the terminal assembly 30 from being deformed or damaged when subjected to a pulling force, thereby causing the terminal assembly 30 to withdraw from the sheath 20; at the same time, guide grooves corresponding to the reinforcing ribs 405 are provided in the sheath 20, and the guide grooves are used to avoid and position the insertion of the reinforcing ribs 405.

[0040] In one embodiment, if Figure 3 As shown, a card block 103 is protruded from the outer side of one end of the card connection portion 102 away from the main body portion 101, and a pre-installed card slot 204 and a locking card slot 205 are arranged on the inner wall of the terminal cavity 201. When the card block 103 is connected to the pre-installed card slot 204, the TPA component 10 is in the pre-installed position, and when the card block 103 is connected to the locking card slot 205, the TPA component 10 is in the locked position. For details, please refer to Figure 4-Figure 6 ,in, Figure 5 and Figure 6 The schematic diagrams of the connector structure are shown in Figures 1 and 2 respectively when the TPA assembly 10 is in the pre-installed position and the locked position. Figure 3 As shown, the clamping portion 102 is cantilevered and the free end of the clamping block 103 is hooked, which facilitates the smooth installation of the TPA assembly 10 into the sheath 20 on the one hand, and also provides good holding force when the clamping block 107 enters the pre-installed slot 204 or the locking slot 205 on the other hand.

[0041] In one embodiment, if Figure 1-Figure 3 As shown, at least one positioning block 104 is provided at the outer edge of the main body 101, and a lap groove 206 matching with the positioning block 104 is provided on the outer side of the insertion port 202 of the sheath 20. When the TPA component 10 is in the locked position, the positioning block 104 is embedded in the lap groove 206. The matching arrangement of the positioning block 104 and the lap groove 206 can position and prevent errors in the installation of the TPA component 10, thereby preventing the operator from inserting the TPA component 10 by mistake and causing damage to the TPA component 10. Further, as shown Figure 1As shown, at least one positioning block 104 is provided with a notch 105, and the overlapping groove 206 is provided with a slope structure 207 that exposes the notch 105. When disassembling the TPA component 10, a sheet or sharp object is inserted into the notch 105, and the TPA component 10 is lifted up with force to achieve convenient disassembly of the TPA component 10.

[0042] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A multi-layer data transmission connector, comprising a TPA component, a sheath and at least two layers of terminal components installed in the sheath, wherein the sheath is provided with an insertion port connected to a terminal cavity of the sheath, the TPA component comprises a main body and clamping parts located on both sides of the main body, after the TPA component enters the terminal cavity through the insertion port, the clamping parts are clamped with the inner wall of the terminal cavity to realize the positioning of the TPA component in a pre-installed position or a locked position, and the terminal component has a positioning groove recessed inwardly, characterized in that: The main body is provided with a terminal fixing portion between the two clamping portions, and the terminal fixing portion includes at least two fixing portions arranged at intervals and a connecting portion connecting different fixing portions into an integrated structure, and the at least two fixing portions arranged at intervals and the connecting portion are continuously arranged along the direction in which the TPA assembly is inserted into the sheath. When the TPA assembly is in the locked position, the at least two fixing portions arranged at intervals respectively cooperate with the corresponding positioning grooves of the terminal assembly to realize secondary locking of at least two layers of terminal assemblies.

2. A multi-layer data transmission connector according to claim 1, characterized in that: The terminal assembly includes a terminal body and a cable conductively connected to the terminal body, the terminal body includes a conductive section, a connecting section and a crimping section for connecting the cable arranged in sequence, the positioning groove is formed in the connecting section, and when the TPA assembly is in a locked position, the fixing portion is at least partially accommodated in the positioning groove and cooperates with the side wall stop of the positioning groove to prevent the terminal assembly from withdrawing from the sheath.

3. A multi-layer data transmission connector according to claim 2, characterized in that: The fixing portion has an arcuate surface matching the shape of the crimping section. When the TPA assembly is in the locked position, the arcuate surface of the fixing portion is pressed against the outer side of the crimping section.

4. A multi-layer data transmission connector according to claim 2, characterized in that: The terminal body and the outer side of the cable are jointly pressed with a crimping piece, and the end surface of one side of the fixing portion facing the crimping piece is recessed inward to form an arc groove for avoiding the crimping piece.

5. A multi-layer data transmission connector according to claim 1, characterized in that: At least two intervally arranged fixing parts, the connecting part and the main body are commonly provided with reinforcing ribs.

6. A multi-layer data transmission connector according to claim 1, characterized in that: A primary lock cantilever is provided on the inner wall of the sheath extending along the direction in which the terminal assembly is installed into the sheath, and the free end of the primary lock cantilever is clamped into the positioning groove.

7. A multi-layer data transmission connector according to claim 6, characterized in that: The primary lock cantilever and the terminal fixing portion are staggered in the circumferential direction of the terminal assembly.

8. The multi-layer data transmission connector according to claim 1, characterized in that: A card block is protruding from the outer side of one end of the card connection portion away from the main body portion, and a pre-installed card slot and a locking card slot are arranged on the inner wall of the terminal cavity at intervals. When the card block is connected to the pre-installed card slot, the TPA assembly is in the pre-installed position, and when the card block is connected to the locking card slot, the TPA assembly is in the locked position.

9. The multi-layer data transmission connector according to claim 1, characterized in that: The outer edge of the main body is provided with at least one positioning block, and the outer side of the insertion port of the sheath is provided with a lap groove matched with the positioning block. When the TPA assembly is in the locked position, the positioning block is embedded in the lap groove.

10. A multi-layer data transmission connector according to claim 9, characterized in that: At least one positioning block is provided with a notch, and the overlapping groove is provided with an inclined surface structure for exposing the notch.

Images