Connector, wire harness mounting structure and vehicle
By integrating the TPA structure and elastic arm hook mechanism on the sheath and clamping base of the small wire-to-wire connector, the existing connector's problem of taking into account the stability and terminal retention force is solved, and high stability is achieved and high-end retention effect.
Patent Information
- Application Number
- CN202420241053.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-30
AI Technical Summary
Existing small wire-to-wire connectors are difficult to balance between stability and terminal retention force, and the overall stability is poor and the terminal retention force is insufficient.
A connector is designed, using a combined structure of sheath and a clamp base, with terminal retaining slots on the sheath, and TPA structure is integrated on the clamp base, and the connector stability is enhanced through the elastic arm and hook mechanism. sex.
High stability and high terminal retention of the connector are achieved while avoiding the increase in additional components and simplifying the structure.
Smart Images
Figure CN222463510U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machinery, in particular to a connector, a wiring harness installation structure and a vehicle. Background Art
[0002] In the wiring harness system, there are two common ways to fix small wire-to-wire connectors. One is to fix the wire harnesses at both ends of the connector with cable ties. This structure can be designed with a separate TPA (Terminal Position Assurance) structure, also known as a secondary terminal lock, to increase the terminal retention force, but the overall stability of the connector with this structure is poor. The other is to set an integrated card flower base on the connector sheath body, assemble the card flower to the card flower base of the connector sheath, and then fix the connector body with the card flower. This type of structural connector has better overall stability, but sacrifices the TPA structure, resulting in a relatively small terminal retention force.
[0003] However, due to the small structure, low overall strength and mechanical properties of small connectors, the terminal retention force and connector fixation stability are crucial to small connectors.
[0004] Therefore, there is a need for a connector, a wire harness installation structure, and a vehicle to at least partially solve the above problems. Utility Model Content
[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.
[0006] In order to at least partially solve the above problems, the first aspect of the present invention provides a connector, comprising:
[0007] A sheath, wherein the sheath has a terminal accommodating cavity, a sheath wall of the sheath is provided with a terminal retaining slot, and the terminal retaining slot is communicated with the terminal accommodating cavity;
[0008] A card base, the card base having a first side and a second side opposite to each other, the card base being connected to the sleeve, wherein the first side is provided with a terminal position retaining member, the terminal position retaining member being used to be inserted into the terminal retaining slot, and the second side is provided with a mounting portion, the mounting portion being used to mount the card.
[0009] According to the connector of the utility model, the TPA structure is integrated on the latch base, which has the advantages of large terminal holding force and high connector installation stability, and the structure is streamlined without adding additional components.
[0010] Optionally, the latch base further comprises at least one group of elastic arms disposed at intervals, wherein the elastic arms extend in a direction away from the second side surface, and the sheath is at least partially located between a group of the elastic arms.
[0011] Optionally, the terminal accommodating cavity is extended along a first direction, the sheath wall includes a first wall and a second wall spaced apart along a second direction, the first direction is orthogonal to the second direction, and the terminal holding slot is opened in the first wall;
[0012] A hook is provided at the end of the elastic arm, and the hooks of a group of the elastic arms are arranged toward each other, and the hooks are engaged with the edge of the second wall of the sheath.
[0013] Optionally, a surface of the hook facing the first side surface forms a hanging surface, and the hanging surface is inclined relative to the main body of the elastic arm and forms an acute angle;
[0014] The edge of the second wall has a clamping surface, and the clamping surface is inclined in a direction away from the first wall so that the clamping surface is matched with the hanging surface.
[0015] Optionally, a guide slope is provided at an edge of the first wall, and the guide slope is inclined in a direction approaching the second wall.
[0016] Optionally, the snap-on base includes at least two groups of elastic arms, and the elastic arms on the same side are arranged at intervals.
[0017] Optionally, the sheath wall also includes a third wall and a fourth wall spaced apart along a third direction, wherein the third direction is orthogonal to both the first direction and the second direction, limiting ribs are provided on the third wall and the fourth wall, and the elastic arm of the card flower base is located between the two spaced apart limiting ribs to limit the movement of the card flower base along the first direction.
[0018] Optionally, the mounting portion includes a bottom wall, a top wall and a side wall connected between the bottom wall and the top wall, and the bottom wall, the top wall and the side walls form a mounting slot, an insertion opening is provided at the end of the mounting slot along the first direction, and the two top walls are spaced apart along a third direction to form a through opening to allow the card flower to be inserted along the first direction, wherein the third direction is orthogonal to both the first direction and the second direction.
[0019] Optionally, a hanging platform is further provided on the second side surface of the clip base, the hanging platform is spaced apart from the mounting slot along the first direction, the hanging platform protrudes from the second side surface, and the hanging platform is used to form a snap fit with the clip ring of the clip.
[0020] Optionally, the bottom wall, the top wall and the side walls are provided with guiding slopes around the insertion port.
[0021] A second aspect of the utility model provides a wiring harness installation structure, comprising:
[0022] The connector described in the first aspect above;
[0023] a wire pressing terminal, wherein the wire pressing terminal is at least partially located in the terminal receiving cavity of the connector; and
[0024] A card flower, wherein the card flower is connected to the card flower base of the connector, and the card flower is used to fix the connector.
[0025] The wiring harness installation structure according to the utility model has a technical effect similar to that of the above connector.
[0026] A third aspect of the present invention provides a vehicle, comprising:
[0027] The connector described in the first aspect above; or
[0028] The wiring harness installation structure described in the second aspect above.
[0029] According to the vehicle of the utility model, the wiring harness is securely installed and has good safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The following drawings of the present invention are used as a part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principle of the present invention.
[0031] In the attached figure:
[0032] Figure 1 is a partial schematic diagram of a wiring harness connection structure according to an embodiment of the present application;
[0033] Figure 2 is a schematic diagram of a connector according to an embodiment of the present application;
[0034] Figure 3 is a schematic diagram of a connector according to an embodiment of the present application from another perspective;
[0035] Figure 4 is a schematic diagram of a sheath of a connector according to an embodiment of the present application;
[0036] Figure 5 A schematic diagram of a connector sheath from another perspective according to an embodiment of the present application;
[0037] Figure 6 A schematic diagram of a sheath of a connector according to an embodiment of the present application from another perspective;
[0038] Figure 7 for Figure 6 Schematic diagram of the cross section along the AA direction;
[0039] Figure 8 for Figure 7 A magnified schematic diagram of part B;
[0040] Fig. 9 It is a schematic diagram of a connector card base according to an embodiment of the present application;
[0041] Fig.10 is another schematic diagram of a connector card base according to an embodiment of the present application; and
[0042] Fig.11 It is a schematic diagram of another viewing angle of the card base of the connector according to an embodiment of the present application.
[0043] Description of reference numerals:
[0044] 10: Card flower 100: Connector 110: Sheath
[0045] 111: First wall 112: Second wall 113: Third wall
[0046] 114: fourth wall 115: terminal holding slot 116: terminal accommodating cavity
[0047] 117: guiding slope 118: clamping surface 119: limiting rib
[0048] 120: primary lock structure 121: matching lock structure 122: support plug-in area
[0049] 123: limited insertion area 150: card flower base 151: first side
[0050] 152: Second side surface 153: Terminal position holding member 154: Elastic arm
[0051] 155: hook 156: hook surface 157: mounting portion
[0052] 158: bottom wall 159: side wall 160: top wall
[0053] 161: Mounting slot 162: Insertion port 163: Passage port
[0054] 164: hanging platform 165: guide surface 166: guide slope
[0055] 167: Supporting part 168: Limiting part D1: First direction
[0056] D2: Second direction D3: Third direction 11: Snap ring DETAILED DESCRIPTION
[0057] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.
[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.
[0059] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in this document are for illustrative purposes only and are not limiting.
[0060] Now, refer to Figures 1 to 11 Exemplary embodiments according to the present invention are described in more detail.
[0061] refer to Figure 1 , Figure 2 and Figure 3The first aspect of the utility model provides a connector 100, which includes a sheath 110 and a card base 150. The sheath 110 has a terminal accommodating cavity 116 that is arranged through along a first direction D1, and the sheath 110 also has a first wall 111 and a second wall 112 that are arranged at intervals along a second direction D2, wherein the first direction D1 is orthogonal to the second direction D2, and the first wall 111 is provided with a terminal holding slot 115, and the terminal holding slot 115 is connected to the terminal accommodating cavity 116. The card base 150 has opposite first side surfaces 151 and second side surfaces 152, and the card base 150 is connected to the sheath 110, wherein the first side surface 151 is provided with a terminal position retaining member 153 and the first side surface 151 at least partially abuts against the first wall 111, and the terminal position retaining member 153 is used to be inserted into the terminal holding slot 115, and the second side surface 152 is provided with a mounting portion 157, and the mounting portion 157 is used to install the card 10.
[0062] According to the connector 100 of the present invention, the TPA structure is integrated on the latch base 150, which has the advantages of large terminal holding force and high installation stability of the connector 100, and the structure is simplified without adding additional components.
[0063] Specifically, the sheath 110 of the connector 100 is roughly constructed in a rectangular parallelepiped shape, and the sheath wall of the sheath 110 has a first wall 111 and a second wall 112 arranged at intervals along the second direction D2, and a third wall 113 and a fourth wall 114 arranged at intervals along the third direction D3. In addition, the sheath 110 of the connector 100 is provided with a plurality of terminal accommodating cavities 116 along the first direction D1. Among them, the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other. In other words, the first direction D1 can be the length direction of the sheath 110, the second direction D2 can be the thickness direction of the sheath 110, and the third direction D3 can be the width direction of the sheath 110.
[0064] A one-time locking structure 120 is provided in each terminal accommodating cavity 116, which is used to lock the crimping terminal once after it enters the terminal accommodating cavity 116. The terminal retaining slot 115 provided on the first wall 111 is connected to each terminal accommodating cavity 116. A matching locking structure 121 is provided on the second wall 112 of the sheath 110, which is used to lock and fix with the matching section of the connector 100. For example, when two connectors are docked, or when a male connector and a female connector are docked, they are locked.
[0065] As an optional implementation, Fig. 9 , Fig.10 and Fig.11As shown, the terminal position holding member 153 of the snap base 150 includes a support portion 167 and a limit portion 168. The support portion 167 is connected to the first side surface 151 of the snap base 150, and the limit portion 168 is arranged on the support portion 167. Figure 4 and Figure 6 The terminal holding slot 115 has a support plug-in area 122 and a limit plug-in area 123 corresponding to the support portion 167. When the flower base 150 is installed on the sheath 110, the support portion 167 is inserted into the support plug-in area 122 of the terminal holding slot 115, and the limit portion 168 enters the limit plug-in area 123 of the holding slot and interferes with the crimping terminal.
[0066] In the illustrated embodiment, the sheath 110 is provided with two terminal accommodating cavities 116 as described above. It can be understood that the terminal holding slot 115 has two limiting plug-in areas 123 corresponding to the two terminal accommodating cavities 116. As a preferred embodiment, the two limiting plug-in areas 123 are respectively located on both sides of the support plug-in area 122 along the third direction D3. Correspondingly, the support portion 167 of the terminal position holding member 153 of the snap base 150 is provided with limiting portions 168 on both sides along the third direction D3.
[0067] As an implementation form, the snap-on base 150 is mounted on the sheath 110 by snapping. Specifically, the snap-on base 150 further includes at least one group of elastic arms 154 arranged at intervals, the elastic arms 154 extending in a direction away from the second side surface 152, the sheath 110 is at least partially located between the group of elastic arms 154, the ends of the elastic arms 154 are provided with hooks 155, the hooks 155 of the group of elastic arms 154 are arranged facing each other, and the hooks 155 are engaged with the edge of the second wall 112 of the sheath 110. In other words, a group of elastic arms 154 is arranged to partially surround the third wall 113 and the fourth wall 114 of the sheath 110. Preferably, the snap-on base 150 includes at least two groups of elastic arms 154, and the elastic arms 154 located on the same side are arranged at intervals.
[0068] refer to Figure 2 , Figure 3 , Figure 4 and Figure 5, the third wall 113 and the fourth wall 114 of the sheath 110 are provided with limiting ribs 119, and the elastic arm 154 of the flower base 150 is located between the two limiting ribs 119 arranged at intervals, so as to limit the movement of the flower base 150 along the first direction D1. In the embodiment shown in the figure, four limiting ribs 119 are respectively provided on the third wall 113 and the fourth wall 114, and the four limiting ribs 119 are combined into two spaced limiting grooves, and each elastic arm 154 is limited in the above-mentioned limiting groove. As an optional embodiment, three or more limiting ribs 119 can be respectively provided on the third wall 113 and the fourth wall 114, as long as each elastic arm 154 can correspond to a limiting groove composed of two limiting ribs 110.
[0069] refer to Figure 1 , Figure 8 and Fig. 9 In order to improve the firmness of the engagement of the snap base 150, the surface of the snap hook 155 facing the first side surface 151 forms a hanging surface 156, and the hanging surface 156 is inclined relative to the main body of the elastic arm 154 and forms an acute angle. Fig. 9 The angle α between the hanging surface 156 and the main body of the elastic arm 154 is less than 90°. Correspondingly, the edge of the second wall 112 of the sheath 110 has a clamping surface 118, which is inclined in a direction away from the first wall 111, so that the clamping surface 118 and the hanging surface 156 are matched. Or it can be explained that the outer edge of the clamping surface 118 is higher than the inner side. In this way, the inclined matching of the clamping surface 118 and the hanging surface 156 improves the holding force of the clamping base 150 on the sheath 110, making the matching of the two more secure.
[0070] Continue to refer Figure 7 and Figure 8 The edge of the first wall 111 of the sheath 110 is provided with a guide slope 117, which is inclined in a direction close to the second wall 112, so as to facilitate smoother assembly of the card base 150. The guide slope 117 can be in the form of a chamfer.
[0071] refer to Figure 1 , Figure 2 , Fig. 9 , Fig.10 and Fig.11The mounting portion 157 of the card flower base 150 includes a bottom wall 158, a top wall 160 and a side wall 159. The side wall 159 is connected between the bottom wall 158 and the top wall 160. The bottom wall 158, the top wall 160 and the side wall 159 form a mounting slot 161, and an insertion port 162 is provided at the end of the mounting slot 161 along the first direction D1. The two top walls 160 are spaced apart along the third direction D3 to form a through port 163 to allow the card flower 10 to be inserted along the first direction D1. Optionally, the bottom wall 158, the top wall 160 and the side wall 159 are provided with a guiding slope 166 around the insertion port 162 to facilitate the insertion operation of the card flower 10.
[0072] The second side surface 152 of the card base 150 is also provided with a hanging platform 164, which is spaced apart from the mounting slot 161 along the first direction D1, and is protruded from the second side surface 152. As an implementation, the hanging platform 164 has a guide surface 165 inclined in a direction away from the second side surface 152, so as to facilitate the clamping ring 11 ( Figure 1 In addition, when the snap ring 11 of the snap flower 10 passes over the end of the guide surface 165, the snap ring 11 covers the hanging platform 164, and the bottom end of the hanging platform 164 faces the snap ring 11 of the snap flower 10 to provide a blocking force opposite to the insertion direction, preventing the snap flower 10 from exiting the installation slot 161.
[0073] The second aspect of the utility model provides a wiring harness installation structure, referring to Figure 1 , which includes the connector 100 of the first aspect, a crimping terminal and a snap 10. Among them, the crimping terminal is at least partially located in the terminal accommodating cavity 116 of the connector 100. The snap 10 is connected to the snap base 150 of the connector 100, and the snap 10 is used to fix the connector 100. Specifically, the snap key of the snap 10 is inserted into the installation slot 161 along the first direction, and the snap ring 11 of the snap 10 is sleeved on the hanging platform 164 on the snap base 150.
[0074] The wiring harness installation structure according to the present invention has a technical effect similar to that of the above-mentioned connector 100 .
[0075] A third aspect of the present invention provides a vehicle, which includes the connector 100 of the first aspect or the wiring harness installation structure of the second aspect.
[0076] According to the vehicle of the utility model, the wiring harness is securely installed and has good safety.
[0077] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.
[0078] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and explanation, and the present invention is not limited to the above-mentioned embodiments. According to the teachings of the present invention, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection required by the present invention.
Claims
1. A connector, characterized in that: include: A sheath, wherein the sheath has a terminal accommodating cavity, a sheath wall of the sheath is provided with a terminal retaining slot, and the terminal retaining slot is communicated with the terminal accommodating cavity; A card base, the card base having a first side and a second side opposite to each other, the card base being connected to the sleeve, wherein the first side is provided with a terminal position retaining member, the terminal position retaining member being used to be inserted into the terminal retaining slot, and the second side is provided with a mounting portion, the mounting portion being used to mount the card.
2. The connector according to claim 1, characterized in that: The snap-on base further comprises at least one group of elastic arms arranged at intervals, wherein the elastic arms extend in a direction away from the second side surface, and the sheath is at least partially located between a group of the elastic arms.
3. The connector according to claim 2, characterized in that: The terminal accommodating cavity is extended along a first direction, the sheath wall includes a first wall and a second wall spaced apart along a second direction, the first direction is orthogonal to the second direction, and the terminal holding slot is opened in the first wall; A hook is provided at the end of the elastic arm, and the hooks of a group of the elastic arms are arranged toward each other, and the hooks are engaged with the edge of the second wall of the sheath.
4. The connector according to claim 3, characterized in that: The surface of the hook facing the first side surface forms a hanging surface, and the hanging surface is inclined relative to the main body of the elastic arm and forms an acute angle; The edge of the second wall has a clamping surface, and the clamping surface is inclined in a direction away from the first wall so that the clamping surface is matched with the hanging surface.
5. The connector according to claim 3, characterized in that: A guiding slope is disposed at an edge of the first wall, and the guiding slope is inclined in a direction approaching the second wall.
6. The connector according to claim 3, characterized in that: The snap-on base comprises at least two groups of elastic arms, and the elastic arms on the same side are arranged at intervals.
7. The connector according to claim 3, characterized in that: The sheath wall also includes a third wall and a fourth wall spaced apart along a third direction, wherein the third direction is orthogonal to both the first direction and the second direction, and limiting ribs are provided on the third wall and the fourth wall, and the elastic arm of the card flower base is located between the two spaced apart limiting ribs to limit the movement of the card flower base along the first direction.
8. The connector according to claim 3, characterized in that: The mounting portion includes a bottom wall, a top wall and a side wall connected between the bottom wall and the top wall, and the bottom wall, the top wall and the side walls form a mounting slot, an insertion opening is provided at the end of the mounting slot along the first direction, and the two top walls are spaced apart along a third direction to form a through opening to allow the card flower to be inserted along the first direction, wherein the third direction is orthogonal to both the first direction and the second direction.
9. The connector according to claim 8, characterized in that: The second side surface of the clip base is also provided with a hanging platform, the hanging platform is spaced apart from the mounting slot along the first direction, the hanging platform protrudes from the second side surface, and the hanging platform is used to form a snap fit with the clip ring of the clip.
10. The connector according to claim 8, characterized in that: The bottom wall, the top wall, and the side wall are provided with guide slopes around the insertion port.
11. A wiring harness installation structure, characterized in that: include: The connector according to any one of claims 1 to 10; A wire pressing terminal, wherein the wire pressing terminal is at least partially located in the terminal accommodating cavity of the connector; as well as A card flower, wherein the card flower is connected to the card flower base of the connector, and the card flower is used to fix the connector.
12. A vehicle, characterized in that: include: The connector according to any one of claims 1 to 10; or The wire harness mounting structure according to claim 11.