TPA structure, TPA locking structure and connector

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to a TPA structure, a TPA locking structure and a connector. The TPA structure comprises a TPA body and further comprises a TPA elastic piece connected with the TPA body, the TPA elastic piece comprises a TPA elastic piece body, a TPA elastic piece limiting plate and a TPA elastic piece protruding face, the TPA elastic piece body is provided with the TPA elastic piece limiting plate and the TPA elastic piece protruding face, the TPA elastic piece protruding face is arranged below the TPA elastic piece body, the TPA elastic piece limiting plate is arranged at the front end of the TPA elastic piece body, and the TPA elastic piece limiting plate is arranged at the rear end of the TPA elastic piece body. The TPA elastic piece limiting plate is located at the front end of the protruding face of the TPA elastic piece, the TPA elastic piece limiting plate is of a flat plate structure, and the thickness of the TPA elastic piece limiting plate is smaller than that of the protruding face of the TPA elastic piece. The TPA structure provided by the utility model can increase the holding force of left and right balance in the plug-in process of the connector, so that the connector is not easy to deviate in the plug-in process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of connector, specifically relates to TPA structure, TPA locking structure and connector. BACKGROUND

[0002] Multi-core connector is a kind of connector with multiple contact points, usually used to connect multiple circuits or signal lines. Multi-core connector includes plug and socket two parts, plug has multiple pins, socket has corresponding number of jack. Through the connection of pin and jack, the transmission of power or signal is realized.

[0003] Multi-core connector is prone to deviation during plug-in, causing the connector male end and female end to be not smooth during plug-in, and even damaging the metal terminal in the connector.

[0004] Therefore, guide structure or positioning pin and other auxiliary structures are added on the connector to help the connector to find the correct position more easily and reduce deviation during plug-in. TPA (Terminal Position Assurance) is a connector terminal holding auxiliary structure, used to ensure that the terminal or contact body in the connector can maintain the correct position after being inserted into the connector shell, and prevent loosening or falling off under the influence of vibration, impact or other environmental factors.

[0005] The utility model provides a new TPA structure, solve the unsmooth of connector plug-in process, ensure that the connector is not prone to deviation during plug-in process technical problem. INVENTION CONTENTS

[0006] The utility model solves the unsmooth of connector plug-in process, ensure that the connector is not prone to deviation during plug-in process technical problem.

[0007] In order to solve the above technical problem, the utility model provides the following technical scheme:

[0008] Firstly,

[0009] The utility model provides a kind of TPA structure, TPA structure includes TPA body, still include the TPA elastic sheet being connected with TPA body, TPA elastic sheet includes TPA elastic sheet main body, TPA elastic sheet limiting plate and TPA elastic sheet convex surface, TPA elastic sheet main body is provided with TPA elastic sheet limiting plate and TPA elastic sheet convex surface, TPA elastic sheet convex surface is set to TPA elastic sheet main body lower position, TPA elastic sheet limiting plate is set to TPA elastic sheet main body front end position, and TPA elastic sheet limiting plate is located TPA elastic sheet convex surface front end, TPA elastic sheet limiting plate is flat plate structure, the thickness of TPA elastic sheet limiting plate is less than the thickness of TPA elastic sheet convex surface.

[0010] Further, the TPA body comprises a TPA main body, and TPA mounting buckles are arranged at the left and right sides of the lower end of the TPA main body, and at least one TPA mounting buckle is arranged on each side.

[0011] Further, a terminal retreat-stopping baffle is arranged at the lower end of the TPA main body, and the terminal retreat-stopping baffle is arranged at the rear end of the TPA mounting buckle.

[0012] Further, the structure and quantity of the terminal retreat-stopping baffle are matched with the terminal to be fixed.

[0013] Further, the TPA body is integrally connected with the TPA elastic sheet.

[0014] The second aspect,

[0015] The utility model provides a kind of TPA locking structure, including above-mentioned TPA structure, and connector shell, and TPA structure is inserted in connector shell.

[0016] Further, TPA slot is arranged on the connector shell, and TPA structure is inserted in TPA slot.

[0017] Further, TPA slot further includes the limiting plate mounting hole communicated with front end, and limiting plate mounting hole is used to accommodate TPA elastic sheet limiting plate, and clearance for TPA elastic sheet deformation is left between TPA elastic sheet limiting plate and limiting plate mounting hole.

[0018] Further, the clearance is adapted to the deformation amount of the TPA elastic sheet.

[0019] The third aspect,

[0020] The utility model provides a kind of connector, using above-mentioned TPA structure.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model discloses a kind of TPA structure, including TPA body, and TPA body is provided with TPA elastic sheet on it, and TPA elastic sheet is inserted into connector shell after being arranged on TPA body, and TPA elastic sheet will be closely matched with connector shell, and terminal can be firmly locked in connector shell by its elastic force.The locking mechanism can prevent terminal from loosening or falling off under the influence of vibration, impact or other environmental factors.TPA elastic sheet convex surface will extend into connector shell, provide left and right balance retaining force during connector plug-in process, can effectively improve the smoothness of connector plug-in, and increase the pull-out force of connector.TPA elastic sheet limiting plate can effectively prevent the fracture of elastic sheet due to excessive deformation, and can also effectively increase the retaining force that TPA structure can provide.Therefore, the TPA structure of the utility model can increase the left and right balance retaining force during connector plug-in, so that connector is not easy to deviate during plug-in. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Figure 1 is a structural schematic view of a TPA structure of the utility model;

[0024] Figure 2 Figure 2 is a structural schematic view of a TPA structure of the utility model;

[0025] Figure 3 Figure 3 is a structural schematic view of a connector shell of the utility model;

[0026] Figure 4 Figure 4 is a structural schematic view of a TPA structure and a connector shell in a pre-assembly state of the utility model;

[0027] Figure 5 Figure 5 is a sectional view of the utility model; Figure 4

[0028] Figure 6 Figure 6 is a structural schematic view of a TPA structure and a connector shell in a locking state of the utility model;

[0029] Figure 7 Figure 7 is a sectional view of the utility model. Figure 6

[0030] The figure mark: 1 is TPA structure, 10 is TPA body, 20 is TPA elastic sheet, 100 is TPA main body, 101 is TPA installation buckle, 102 is terminal stop baffle, 200 is TPA elastic sheet main body, 201 is TPA elastic sheet limiting plate, 202 is TPA elastic sheet convex surface, 300 is connector shell, 301 is TPA slot, 302 is terminal hole, 303 limiting plate mounting hole. DETAILED DESCRIPTION

[0031] The technical scheme of the utility model will be described clearly below in combination with the drawings, obviously, the described embodiment is not all the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the protection scope of the utility model.

[0032] It should be noted that the terms "center", "upper", "lower", "horizontal", "left", "right", "front", "rear", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0033] Example 1

[0034] In combination with​​Figures 1-7 As shown, the utility model provides a kind of TPA structure, TPA structure 1 is used to be matched with connector housing 300, connector housing 300 upside and downside (in the actual use of connector housing 300, the upside and downside of connector housing 300 in drawing, actually, it is the left side and right side of corresponding connector housing 300) symmetrically provided with TPA slot 301 (only one TPA structure 1 is shown in this embodiment and is contained in TPA slot 301), TPA slot 301 is used to contain TPA structure 1, when using, TPA structure 1 is inserted into TPA slot 301.

[0035] At least one terminal hole 302 is provided along the front-back direction of connector housing 300, and the terminal hole 302 is used to accommodate the terminal, and when used, the terminal is inserted into the corresponding terminal hole 302 along the front-back direction. The direction of the terminal inserted into the terminal hole 302 is forward.

[0036] In this embodiment, the number of terminal holes 302 is four.

[0037] TPA structure 1 includes TPA body 10, and TPA spring 20 connected to the front end of TPA body 10.

[0038] In a specific embodiment, TPA body 10 and TPA spring 20 are integrally connected, specifically by injection molding.

[0039] As shown, Figure 1 TPA body 10 includes TPA main body 100, TPA mounting buckle 101 and terminal stop plate 102.

[0040] TPA mounting buckle 101 and terminal stop plate 102 are provided on TPA main body 100; TPA mounting buckle 101 is arranged at the left and right positions of the lower end of TPA main body 100, and at least one TPA mounting buckle 101 is arranged at each of the left and right positions. TPA mounting buckle 101 is used to provide the interface for mounting and fixing TPA body 10 with connector housing 300, and is used to buckle connect with the structure on connector housing 300 which is adapted to TPA mounting buckle 101, so that TPA mounting buckle 101 can firmly lock TPA structure 1 in the correct position.

[0041] Terminal stop plate 102 is arranged at the lower end of TPA main body 100 and located at the rear end of TPA mounting buckle 101, and the structure and number of stop plate 102 are arranged according to the number of terminals to be fixed. The main function of terminal stop plate 102 is to provide additional support and fixing effect for the terminal. When the terminal is inserted into the connector housing 300, the terminal stop plate 102 will tightly cooperate with the terminal to firmly lock the terminal in the correct position. This locking mechanism can further enhance the stability and reliability of the connector.

[0042] The TPA spring 20 comprises a TPA spring body 200, a TPA spring limiting plate 201 and a TPA spring convex surface 202. The TPA spring 20 is a cantilever structure spring. The TPA spring body 200 has elasticity.

[0043] When the TPA structure 1 is inserted into the connector housing 300, the TPA spring 20 will be closely matched with the connector housing 300, and firmly lock the terminal in the connector housing 300 through its elastic force, preventing the terminal from loosening or falling off under the influence of vibration, impact or other environmental factors.

[0044] The TPA spring body 200 is provided with the TPA spring limiting plate 201 and the TPA spring convex surface 202. The TPA spring limiting plate 201 is arranged at the front end of the TPA spring body 200. The TPA spring limiting plate 201 adopts a flat plate structure, and the thickness of the TPA spring limiting plate 201 is less than the thickness of the TPA spring convex surface 202. The TPA slot 301 also includes a limiting plate mounting hole 303 at the front end, which is used to accommodate the TPA spring limiting plate 201. There is a gap between the TPA spring limiting plate 201 and the limiting plate mounting hole 303 (they are not closely matched, and there is a deformation gap of the TPA spring limiting plate 201), which is adapted to the deformation amount of the TPA spring 20, thereby realizing the function of limiting the deformation amount of the TPA spring 20.

[0045] When the TPA spring 20 is assembled, the flat plate structure of the TPA spring limiting plate 201 enables the TPA spring limiting plate 201 to make reliable contact with the connector housing 300, and the TPA spring limiting plate 201 can limit the TPA spring 20 from excessive deformation and breaking, and can also effectively increase the holding force that the TPA structure 1 can provide.

[0046] The TPA spring convex surface 202 is arranged below the TPA spring body 200, opposite to the terminal, and located at the rear end of the TPA spring limiting plate 201. The TPA spring convex surface 202 can extend into the connector housing 300, ensuring reliable contact between the TPA spring convex surface 202 and the terminal in the connector, providing left-right balance (the left-right balance here refers to the actual position during the use of the connector) holding force during the plug-in process of the connector, effectively improving the smoothness of the connector insertion, and increasing the pull-out force of the connector.

[0047] Because the multi-core connector is easy to deviate during the plug-in process, the plug-in of the male and female connectors is not smooth, and even the metal terminal in the connector is damaged, by setting the TPA elastic sheet 20 on the TPA body 10, the TPA elastic sheet protruding surface 202 will extend into the connector shell 300, providing a left-right balance holding force for the connector plug-in process, which can effectively improve the smoothness of the connector connection, and increase the pull-out force of the connector.

[0048] Embodiment 2

[0049] A TPA locking structure, comprising the TPA structure 1 of embodiment 1 and the connector shell 300, the connector shell 300 is symmetrically provided with a TPA slot 301 on the upper side and the lower side (in the actual use of the connector shell 300, the upper side and the lower side of the connector shell 300 in the figure are actually corresponding to the left side and the right side of the connector shell 300), and the TPA structure 1 is inserted into the TPA slot 301.

[0050] At least one terminal hole 302 is provided in the front-rear direction of the connector shell 300, and the terminal hole 302 is used to accommodate the terminal, and in use, the terminal is inserted into the corresponding terminal hole 302 along the front-rear direction.

[0051] Embodiment 3

[0052] A connector, comprising the TPA structure 1 of embodiment 1.

[0053] The above technical features constitute the best embodiment of the present application, which has strong adaptability and optimal implementation effect, and unnecessary technical features can be added or reduced according to actual needs to meet the needs of different situations.

[0054] Finally, it should be noted that the above content is only used to explain the technical scheme of the present application, and is not a limitation on the protection scope of the present application, and the simple modification or equivalent replacement of the technical scheme of the present application by the ordinary skilled in the art does not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. A TPA structure, the TPA structure (1) comprising a TPA body (10), characterized in that, It also includes a TPA spring (20) connected to the TPA body (10). The TPA spring (20) includes a TPA spring body (200), a TPA spring limiting plate (201), and a TPA spring protrusion (202). The TPA spring body (200) is provided with the TPA spring limiting plate (201) and the TPA spring protrusion (202). The TPA spring protrusion (202) is located below the TPA spring body (200). The TPA spring limiting plate (201) is located at the front end of the TPA spring body (200) and is located at the front end of the TPA spring protrusion (202). The TPA spring limiting plate (201) is a flat plate structure and the thickness of the TPA spring limiting plate (201) is less than the thickness of the TPA spring protrusion (202).

2. The TPA structure according to claim 1, characterized in that, The TPA body (10) includes a TPA body (100), and TPA mounting clips (101) are provided on the left and right sides of the lower end of the TPA body (100), with at least one TPA mounting clip (101) on each side.

3. The TPA structure according to claim 2, characterized in that, A terminal anti-reverse baffle (102) is provided at the lower end of the TPA body (100), and the terminal anti-reverse baffle (102) is located at the rear end of the TPA mounting clip (101).

4. The TPA structure according to claim 3, characterized in that, The structure and number of terminal anti-reverse baffles (102) are matched to the terminals that need to be fixed.

5. The TPA structure according to claim 1, characterized in that, The TPA body (10) and the TPA spring (20) are connected as a single unit.

6. A TPA locking structure, characterized in that, Includes the TPA structure (1) as described in any one of claims 1-5, and a connector housing (300), wherein the TPA structure (1) is inserted into the connector housing (300).

7. The TPA locking structure according to claim 6, characterized in that, The connector housing (300) is provided with a TPA slot (301), and the TPA structure (1) is inserted into the TPA slot (301).

8. The TPA locking structure according to claim 7, characterized in that, The TPA slot (301) also includes a front-end connected limiting plate mounting hole (303), which is used to accommodate the TPA spring limiting plate (201). A gap is left between the TPA spring limiting plate (201) and the limiting plate mounting hole (303) for the deformation of the TPA spring (20).

9. The TPA locking structure according to claim 8, characterized in that, The gap is adapted to the deformation of the TPA spring (20).

10. A connector, characterized in that, The TPA structure described in any one of claims 1-5 is adopted (1).

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