A strong locking inertia external lock connector

Abstract

The present invention discloses a strongly locked inertia external lock connector, belonging to the technical field of electrical connectors. The connector comprises a wire end hole seat, a spring terminal, a terminal fixing structure, a board end needle seat, a pin terminal, a terminal interlocking structure, and an inertia external lock structure. The wire end hole seat has a plurality of terminal mounting cavities defined therein, through holes defined on the side walls of the terminal mounting cavities, a plurality of spring terminals respectively mounted within the terminal mounting cavities, the terminal fixing structures respectively arranged on the wire end hole seat and the spring terminal, a plurality of mounting holes defined on the side walls of the board end needle seat, a plurality of pin terminals respectively mounted within the mounting holes, one end of the pin terminal extending into the board end needle seat, a terminal interlocking structure respectively arranged on the spring terminal and the pin terminal, and an inertia external lock structure respectively arranged on the top of the wire end hole seat and the board end needle seat. The present invention enhances the reliability of the connector and significantly improves the stability and safety of the electrical connection through the design of multiple locking mechanisms.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and in particular to an inertial external lock connector with strong locking. Background Art

[0002] Connectors, also known as connecting terminals, generally refer to electrical connectors. They connect two active components, transmitting current or signals. Reliable electrical connections are crucial in electronic devices, industrial machinery, and various connector applications. Traditional connectors typically rely on simple plug-in mechanisms or mechanical locks to secure terminals.

[0003] However, on the one hand, the terminal locking structure of traditional connectors is prone to loosening when subjected to vibration or external force, resulting in poor contact or circuit breakage, affecting the stability and safety of the equipment; on the other hand, during the plug-in process, traditional connectors are prone to incomplete plug-in, that is, they are in a semi-engaged state, and the terminals may only partially contact, which will not only cause abnormal current conduction, but may also cause heat or even short circuit due to increased contact resistance.

[0004] Therefore, how to provide an inertial external lock connector with strong locking to solve the defects in the prior art is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] To this end, the present invention provides a strong locking inertial external lock connector to solve the problems in the prior art caused by the loosening and incomplete insertion of traditional connectors, which may lead to poor contact or circuit breakage, abnormal current conduction, heating and even short circuit.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention discloses a strong locking inertia external lock connector, comprising:

[0008] The wire end hole seat has a plurality of terminal installation cavities formed therein, and the side walls of the terminal installation cavities are provided with through holes;

[0009] A plurality of spring terminals are respectively installed inside the terminal installation cavity;

[0010] a terminal fixing structure, respectively provided on the wire end hole seat and the spring terminal, wherein when the spring terminal is plugged into the wire end hole seat, the terminal fixing structure fixes the spring terminal in the terminal installation cavity;

[0011] The needle holder at the end of the board has several mounting holes on its side wall;

[0012] A plurality of pin terminals are respectively installed in the interior of the mounting holes, and one end of the pin terminal extends into the interior of the board end pin seat;

[0013] a terminal interlocking structure, respectively provided on the spring terminal and the pin terminal, wherein when the wire end hole seat and the board end pin seat are plugged into each other, the terminal interlocking structure locks the spring terminal and the pin terminal into each other;

[0014] The inertia external locking structure is respectively arranged on the top of the wire end hole seat and the board end needle seat. When the wire end hole seat and the board end needle seat are plugged into each other, the inertia external locking structure enables the wire end hole seat and the board end needle seat to form a snap connection.

[0015] Furthermore, the terminal fixing structure includes:

[0016] A fixing groove is provided at the bottom of the wire end hole seat, wherein a plurality of branch grooves are provided inside the fixing groove, and the branch grooves correspond to the terminal installation cavities one by one;

[0017] A locking piece is detachably mounted in the fixing groove, and a plurality of branch pieces are integrally formed on the side wall of the locking piece, and the branch pieces correspond to the branch grooves one by one;

[0018] The barb is provided at the bottom of the spring terminal and is integrally formed with the spring terminal. The barb is bent in a direction away from the spring terminal. When the spring terminal is plugged into the wire end socket, the barb is engaged in the branch groove and contacts the branch piece.

[0019] Furthermore, the terminal fixing structure further includes:

[0020] Locking grooves are provided in pairs and are respectively opened on the side walls of the two outermost branch grooves;

[0021] The locking blocks are arranged in pairs and are integrally formed with the locking piece. The two locking blocks are respectively arranged on the side walls of the two outermost branch pieces. The locking blocks cooperate with the locking grooves so that the locking piece is engaged and connected with the fixing groove.

[0022] Furthermore, the end of the barb is bent downward along the insertion direction of the spring terminal to form a bent portion.

[0023] Furthermore, the terminal interlocking structure includes:

[0024] Terminal spring clips, arranged in pairs and integrally formed with the spring terminal;

[0025] Bubble points are arranged in pairs and are respectively arranged on opposite side walls of the two end shrapnels;

[0026] The protrusions are arranged in pairs, and the pin terminal is located on opposite side walls at one end inside the board end needle seat. The protrusions correspond to the bubble point positions. When the spring terminal and the pin terminal are plugged in, the protrusions and the bubble point are snap-fitted.

[0027] Furthermore, the inertial external locking structure includes:

[0028] Side plates are provided in pairs and are arranged on top of the wire end hole seat;

[0029] a top plate, arranged on top of the side plates;

[0030] The deformation grooves are arranged in pairs and are respectively opened on the side walls of the two side plates;

[0031] A first clamping block is provided at the bottom of the top plate;

[0032] The second clamping block is arranged on the top of the board end needle seat; when the wire end hole seat is plugged into the board end needle seat, the second clamping block is engaged and connected with the first clamping block.

[0033] Furthermore, the cross-sectional shapes of the first clamping block and the second clamping block are both trapezoidal.

[0034] Furthermore, the pin terminal has a zigzag structure.

[0035] The present invention has the following advantages:

[0036] The present invention provides a terminal fixing structure, which greatly improves the pull-out resistance of the terminal in the hole seat, prevents the terminal from loosening due to vibration or external force, and eliminates the risk of circuit breakage caused by loosening of traditional connectors. By providing a terminal interlocking structure, the spring terminal and the pin terminal are in close contact and locked with each other after plugging in, ensuring the stability of the connection and avoiding abnormal current or heating problems caused by poor contact. By providing an inertial external locking structure, the wire end hole seat and the board end needle seat are plugged in at one time, avoiding the problem of half-fitting due to incomplete plugging, and ensuring stable current conduction. At the same time, the interior of each structure is modularly designed, which is convenient for disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0038] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0039] Figure 1 A three-dimensional diagram of the inertial external locking connector with strong locking provided by the present invention;

[0040] Figure 2 A diagram showing the connection state of the strong-locking inertia external lock connector provided by the present invention;

[0041] Figure 3 A three-dimensional diagram of the wire end hole seat provided by the present invention;

[0042] Figure 4 A cross-sectional view of a wire end hole seat provided by the present invention;

[0043] Figure 5 A cross-sectional view of the terminal fixing structure provided by the present invention;

[0044] Figure 6 A diagram showing the connection status of the spring terminal and the pin terminal provided by the present invention;

[0045] Figure 7 The present invention provides Figure 5 A magnified view of the structure in the middle;

[0046] Figure 8 A three-dimensional diagram of the plate end needle seat provided by the present invention;

[0047] Figure 9 A three-dimensional diagram of the spring terminal provided by the present invention;

[0048] Figure 10 This is a three-dimensional diagram of the pin terminal provided by the present invention.

[0049] In the figure: 1 wire end hole seat; 11 terminal mounting cavity; 12 through hole; 2 spring terminal; 3 board end needle seat; 31 mounting hole; 4 pin terminal; 5 inertia external locking structure; 51 side plate; 52 top plate; 53 deformation groove; 54 first clamping block; 55 second clamping block; 61 fixing groove; 62 branching groove; 63 locking piece; 64 branching piece; 65 barb; 651 bending part; 66 locking groove; 67 locking block; 71 terminal spring clip; 72 bubble point; 73 protrusion. DETAILED DESCRIPTION

[0050] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0051] Please refer to Figures 1-10 The invention discloses a strong locking inertia external lock connector. The invention consists of seven parts, such as Figure 1 、 Figure 2 、 Figure 8 As shown, it includes a wire end hole seat 1, a spring terminal 2, a terminal fixing structure, a board end needle seat 3, a pin terminal 4, a terminal interlocking structure and an inertia external locking structure 5. The wire end hole seat 1 is provided with a plurality of terminal installation cavities 11, and a through hole 12 is provided on the side wall of the terminal installation cavity 11. A plurality of spring terminals 2 are respectively installed in the interior of the terminal installation cavity 11. The terminal fixing structure is respectively provided on the wire end hole seat 1 and the spring terminal 2. When the spring terminal 2 is plugged into the wire end hole seat 1, the terminal fixing structure fixes the spring terminal 2 in the terminal installation cavity 11. The side wall of the board end needle seat 3 is provided with a through hole 12. Several mounting holes 31 are defined, and several pin terminals 4 are mounted within these holes. One end of each pin terminal 4 extends into the interior of the board-end pin block 3. Terminal interlocking structures are provided on each of the spring terminals 2 and the pin terminals 4. When the line-end socket 1 and the board-end pin block 3 are plugged together, the terminal interlocking structures lock the spring terminals 2 and the pin terminals 4 together. Inertia external locking structures 5 are provided on top of each of the line-end socket 1 and the board-end pin block 3. When the line-end socket 1 and the board-end pin block 3 are plugged together, the inertia external locking structures 5 secure the line-end socket 1 and the board-end pin block 3 in a snap-fit ​​connection. Preferably, the pin terminals 4 have a zigzag structure.

[0052] In this embodiment, the shapes of the wire end hole seat 1 and the board end needle seat 3 are as follows: Figure 1 、 Figure 2 、 Figure 8 As shown, the wire end socket 1 has a spring terminal 2 mounted inside it, and the board end pin socket 3 has a pin terminal 4 mounted inside it. When the wire end socket 1 and the board end pin socket 3 are plugged together, the pin terminal 4 enters the terminal mounting cavity 11 through the through hole 12 and connects with the spring terminal 2 inside the terminal mounting cavity 11. The internal structure of each structure of the present application is modular in design, which facilitates disassembly and maintenance.

[0053] Preferably, the number of the spring terminals 2 and the pin terminals 4 is at least five; the number of the spring terminals 2 and the pin terminals 4 can be flexibly configured to meet different current or signal transmission requirements, and is applicable to a variety of industrial and electronic equipment scenarios.

[0054] By providing a terminal fixing structure, the terminal's pull-out resistance within the socket is significantly improved, preventing the terminal from loosening due to vibration or external force, eliminating the risk of disconnection caused by looseness in traditional connectors. By providing a terminal interlocking structure, the spring terminal 2 and the pin terminal 4 are in close contact and locked with each other after insertion, ensuring the stability of the connection and avoiding current abnormalities or heating problems caused by poor contact. By providing an inertial external locking structure 5, the wire-end socket 1 and the board-end pin socket 3 are plugged in at once, avoiding the problem of half-fitting caused by incomplete insertion and ensuring stable current conduction.

[0055] like Figure 3 、 Figure 4 、 Figure 5 As shown, the terminal fixing structure includes a fixing groove 61, a locking piece 63 and a barb 65. The fixing groove 61 is opened at the bottom of the wire end hole seat 1, and a plurality of branch grooves 62 are opened inside the fixing groove 61. The branch grooves 62 correspond one-to-one with the terminal installation cavity 11. The locking piece 63 is detachably installed in the fixing groove 61. A plurality of branch pieces 64 are integrally formed on the side wall of the locking piece 63. The branch pieces 64 correspond one-to-one with the branch grooves 62. The barb 65 is arranged at the bottom of the spring terminal 2 and is integrally formed with the spring terminal 2. The barb 65 is bent in the direction away from the spring terminal 2. When the spring terminal 2 is plugged into the wire end hole seat 1, the barb 65 is clamped in the branch groove 62 and abuts against the branch piece 64.

[0056] In this embodiment, the shapes of the fixing groove 61 and the locking piece 63 are as follows: Figure 3 、 Figure 4 As shown, the shapes of the fixing groove 61 and the locking plate 63 correspond to each other. The locking plate 63 is removably engaged in the fixing groove 61, and supports the barb 65 from the inside of the fixing groove 61, thereby preventing the barb 65 from deforming due to external forces and increasing the holding force. The opening of the fixing groove 61 has a stepped retaining edge for securing the locking plate 63, and the locking plate 63 can undergo a certain degree of elastic deformation.

[0057] The shape of the barb 65 is as follows Figure 5 As shown, the barb 65 is elastic. When the spring terminal 2 is inserted into the terminal mounting cavity 11, it elastically deforms and engages within the branch groove 62 of the fixing groove 61. At the same time, the locking piece 63 installed from the front of the wire end socket 1 can support the barb 65, preventing the barb 65 from being pulled over. Preferably, the end of the barb 65 is bent downward along the insertion direction of the spring terminal 2 to form a bend 651. The provision of the bend 651 increases the force-bearing area. Combined with the rigid support of the locking piece 63, the risk of the barb 65 being pulled over is significantly reduced, thereby extending the service life of the connector.

[0058] When in use, the spring terminal 2 is inserted into the terminal mounting cavity 11, and the locking piece 63 will be squeezed and retracted by the bottom wall of the terminal mounting cavity 11. When the spring terminal 2 is inserted into the deepest part of the terminal mounting cavity 11, the locking piece 63 will produce elastic deformation and be clamped in the branch groove 62 of the fixing groove 61. The branch piece 64 of the locking piece 63 will also press against the barb 65 in the branch groove 62.

[0059] like Figure 3 As shown, the terminal fixing structure also includes a locking groove 66 and a locking block 67. The locking grooves 66 are provided in pairs and are respectively provided on the side walls of the two outermost branch grooves 62. The locking blocks 67 are provided in pairs and are integrally formed with the locking piece 63. The two locking blocks 67 are respectively provided on the side walls of the two outermost branch pieces 64. The locking blocks 67 cooperate with the locking grooves 66 to engage the locking piece 63 with the fixing groove 61. Preferably, the edges of the locking blocks 67 are chamfered.

[0060] In this embodiment, the shapes of the locking groove 66 and the locking block 67 are as follows: Figure 3 As shown, when installing the locking piece 63, the locking piece 63 is inserted from the bottom of the fixing groove 61, so that the locking block 67 enters the locking groove 66, thereby locking the locking piece 63 in the fixing groove 61. Since the wire end hole seat 1 is inserted into the board end needle seat 3, the bottom of the locking piece 63 will be blocked by the board end needle seat 3, thereby achieving the fixation of the locking piece 63.

[0061] like Figure 6 、 Figure 9 、 Figure 10 As shown, the terminal interlocking structure includes terminal spring clips 71, bubble points 72 and protrusions 73. The terminal spring clips 71 are arranged in pairs and are integrally formed with the spring terminal 2. The bubble points 72 are arranged in pairs and are respectively arranged on opposite side walls of the two terminal spring clips 71. The protrusions 73 are arranged in pairs and are arranged on opposite side walls of one end of the pin terminal 4 located inside the board end needle seat 3. The positions of the protrusions 73 and the bubble points 72 correspond to each other. When the spring terminal 2 and the pin terminal 4 are plugged into each other, the protrusions 73 and the bubble points 72 are snap-fitted.

[0062] In this embodiment, the shapes of the spring terminals 2 and the pin terminals 4 are as follows: Figure 9 、 Figure 10 As shown, the terminal interlocking structure is achieved by the interference between the bubble point 72 and the protrusion 73. The bubble point 72 on the spring terminal 2 is generally located at the narrowest point, providing both contact and position limiting functions. The bubble point 72 and protrusion 73 can be shaped in a hemispherical, truncated cone, trapezoidal, or square shape, with rounded edges. A variety of shapes are available, as long as they achieve interference. After the pin terminal 4 is inserted into the spring terminal 2, the terminal spring clip 71 ensures close contact between the two terminals, preventing abnormal current flow and heating caused by poor contact.

[0063] like Figure 5 、 Figure 7 As shown, the inertial external locking structure 5 includes a side plate 51, a top plate 52, a deformation groove 53, a first clamping block 54 and a second clamping block 55. The side plates 51 are arranged in pairs and are arranged on the top of the line end hole seat 1. The top plate 52 is arranged on the top of the side plate 51. The deformation grooves 53 are arranged in pairs and are respectively opened on the side walls of the two side plates 51. The first clamping block 54 is arranged at the bottom of the top plate 52, and the second clamping block 55 is arranged at the top of the board end needle seat 3. When the line end hole seat 1 and the board end needle seat 3 are plugged in, the second clamping block 55 is engaged and connected with the first clamping block 54.

[0064] In this embodiment, the side panels 51, the top panel 52, and the deformation grooves 53, the deformation grooves 53 can provide deformation space for the top panel 52, so that the first card block 54 and the second card block 55 can be smoothly connected. The inertial external lock structure 5 uses the critical inertial force to make the lock plug into place at one time, avoiding the semi-engaged problem caused by incomplete plugging, and ensuring stable current conduction. When the first card block 54 and the second card block 55 are inserted, they are contacted by two vertical planar structures, and there will be a greater insertion force. When the critical point is reached, a greater inertial force will also be generated, so that the lock is directly inserted into place to prevent a semi-engaged state. Preferably, the cross-sectional shapes of the first card block 54 and the second card block 55 are both trapezoidal; the shapes of the first card block 54 and the second card block 55 are as follows: Figure 7 As shown, the side walls of the first clamping block 54 and the second clamping block 55 form a slope, which only works when the wire end hole seat 1 and the board end needle seat 3 are to be separated. This can increase the force when the wire end hole seat 1 and the board end needle seat 3 are separated, ensuring that the connection between the wire end hole seat 1 and the board end needle seat 3 is more stable.

[0065] The usage process of the embodiment of the present invention is as follows:

[0066] First, insert the locking piece 63 from the bottom of the fixing groove 61, then insert the spring terminal 2 into the terminal installation cavity 11. The locking piece 63 will be squeezed back by the bottom wall of the terminal installation cavity 11. When the spring terminal 2 is inserted to the deepest part of the terminal installation cavity 11, the locking piece 63 will be elastically deformed and locked into the branch groove 62 of the fixing groove 61.

[0067] Secondly, the wire end socket 1 is plugged into the board end needle socket 3, and the needle terminal 4 is inserted into the spring terminal 2 through the through hole 12. The bubble point 72 interferes with the protrusion 73, thereby locking the position of the spring terminal 2 and the needle terminal 4; in this process, the first clamping block 54 and the second clamping block 55 are inserted by inertia, so that the wire end socket 1 and the board end needle socket 3 are firmly connected.

[0068] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A strong locking inertia external lock connector, characterized in that: include: A wire end hole seat (1) is provided with a plurality of terminal installation cavities (11) therein, and a through hole (12) is provided on a side wall of the terminal installation cavity (11); A plurality of spring terminals (2) are respectively installed inside the terminal installation cavity (11); a terminal fixing structure, respectively provided on the wire end hole seat (1) and the spring terminal (2); when the spring terminal (2) is plugged into the wire end hole seat (1), the terminal fixing structure fixes the spring terminal (2) in the terminal installation cavity (11); The needle seat (3) at the end of the plate has a plurality of mounting holes (31) on its side wall; A plurality of pin terminals (4) are respectively installed inside the mounting holes (31), and one end of the pin terminal (4) extends into the interior of the board end pin seat (3); a terminal interlocking structure, respectively provided on the spring terminal (2) and the pin terminal (4); when the wire end hole seat (1) and the board end pin seat (3) are plugged in, the terminal interlocking structure causes the spring terminal (2) and the pin terminal (4) to lock with each other; An inertial external locking structure (5) is respectively arranged on the top of the wire end hole seat (1) and the board end needle seat (3); when the wire end hole seat (1) and the board end needle seat (3) are plugged in, the inertial external locking structure (5) enables the wire end hole seat (1) and the board end needle seat (3) to form a snap connection; The terminal fixing structure includes: A fixing groove (61) is provided at the bottom of the wire end hole seat (1), a plurality of branch grooves (62) are provided inside the fixing groove (61), and the branch grooves (62) correspond one to one with the terminal installation cavity (11); A locking piece (63) is detachably mounted in the fixing groove (61), and a plurality of branch pieces (64) are integrally formed on the side wall of the locking piece (63), and the branch pieces (64) correspond one to one with the branch grooves (62); A barb (65) is provided at the bottom of the spring terminal (2) and is formed integrally with the spring terminal (2). The barb (65) is bent in a direction away from the spring terminal (2). When the spring terminal (2) is plugged into the wire end socket (1), the barb (65) is engaged in the branch groove (62) and contacts the branch piece (64).

2. The strong locking inertia external lock connector according to claim 1, characterized in that: The terminal fixing structure further includes: Locking grooves (66) are arranged in pairs and are respectively opened on the side walls of the two outermost branch grooves (62); The locking blocks (67) are arranged in pairs and are integrally formed with the locking piece (63). The two locking blocks (67) are respectively arranged on the side walls of the two outermost branch pieces (64). The locking blocks (67) cooperate with the locking groove (66) to enable the locking piece (63) to be engaged and connected with the fixing groove (61).

3. The strong locking inertia external lock connector according to claim 1, characterized in that: The end of the barb (65) is bent downward along the insertion direction of the spring terminal (2) to form a bent portion (651).

4. The strong locking inertia external lock connector according to claim 1, characterized in that: The terminal interlocking structure includes: Terminal spring clips (71), arranged in pairs and integrally formed with the spring terminal (2); Bubble points (72) are arranged in pairs and are respectively arranged on opposite side walls of the two end spring pieces (71); The protrusions (73) are arranged in pairs, and the pin terminal (4) is arranged on opposite side walls at one end inside the plate end needle seat (3). The protrusions (73) correspond to the positions of the bubble points (72). When the spring terminal (2) and the pin terminal (4) are plugged in, the protrusions (73) and the bubble points (72) are snap-fitted.

5. The strong locking inertia external lock connector according to claim 1, characterized in that: The inertial external locking structure (5) comprises: Side plates (51), arranged in pairs, are arranged on top of the wire end hole seat (1); A top plate (52) is provided on top of the side plate (51); Deformation grooves (53) are arranged in pairs and are respectively opened on the side walls of the two side plates (51); A first clamping block (54) is arranged at the bottom of the top plate (52); The second clamping block (55) is arranged on the top of the board end needle seat (3); when the wire end hole seat (1) is plugged into the board end needle seat (3), the second clamping block (55) is engaged and connected with the first clamping block (54).

6. The strong locking inertia external lock connector according to claim 5, characterized in that: The cross-sectional shapes of the first clamping block (54) and the second clamping block (55) are both trapezoidal.

7. The strong locking inertia external lock connector according to claim 1, characterized in that: The pin terminal (4) has a zigzag structure.

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