Mutual insertion type fixed connector

Abstract

The utility model discloses a mutual insertion type fixed connector, which comprises two connecting pieces which are spliced and connected along a first direction, each connecting piece comprises a shell, one end of each shell along the first direction is a wiring end, and the other end of each shell is provided with an insertion assembly. The inserting assemblies of the two connecting pieces are oppositely arranged in the first direction and symmetrically arranged in the second direction. The plug-in assembly comprises a plug-in convex part, a plug-in area and a connecting part which are sequentially arranged in the second direction. In the first direction, the connecting part of any connecting piece and the shell of the other connecting piece are correspondingly provided with a stopping convex part and a connecting opening respectively, and the stopping convex part is matched with the connecting opening in size, so that when the two connecting pieces are spliced in the first direction, the inserting convex part of one connecting piece is inserted into the inserting area of the other connecting piece; and the stopping convex part is clamped and fixed with the connecting opening. The two connecting pieces are the same in structure, the design without male and female attributes eliminates directivity errors during insertion, and the risk of interface damage caused by reverse insertion is reduced.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to an interlocking fixed connector. Background Technology

[0002] A connector is a device that connects two active devices and is used to transmit current or signals. However, the structural design of connectors in the current technology has certain problems. Connectors are usually divided into male and female terminals, which must be strictly matched for a proper connection. This reduces the flexibility and convenience of use, especially in space-constrained situations or where rapid insertion and removal are required, causing considerable inconvenience to users. In addition, the terminal fixing of connectors in the current technology mostly relies on plastic clips or shell structures. Long-term insertion and removal can easily lead to clip wear and terminal displacement, causing poor contact. Furthermore, the independent design of male and female terminals requires the creation of two sets of shells, which complicates material management and increases production costs. Moreover, if the connector is misfitted or damaged, the entire connector must be replaced, resulting in high maintenance costs and time consumption. Utility Model Content

[0003] The purpose of this invention is to provide an interlocking fixed connector to solve the problems caused by the connector being divided into male and female ends as mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts an interlocking fixed connector, comprising two connectors assembled and connected along a first direction, wherein:

[0005] The connector includes a housing, one end of which is a terminal along the first direction, and the other end is provided with a connector assembly. The connector assemblies of the two connectors are arranged opposite each other along the first direction and symmetrically arranged along the second direction. The connector assembly includes a connector protrusion, a connector area, and a connecting portion arranged sequentially along the second direction.

[0006] Along the first direction, the connecting portion of any one of the connectors and the housing of the other connector are respectively provided with a stop protrusion and a connecting opening. The stop protrusion and the connecting opening are matched in size and are configured so that when the two connectors are inserted and assembled along the first direction, the insertion protrusion of one connector is inserted into the insertion area of ​​the other connector, and the stop protrusion and the connecting opening are engaged and fixed.

[0007] This utility model provides an interlocking fixed connector in which the two connectors have identical structures and no distinction between male and female ends. During assembly, the interlocking components of the two connectors are symmetrically arranged, so that the interlocking protrusions of each other can be accurately inserted into the interlocking area of ​​the other. The locking and fixing structure between the stop protrusion and the connection opening ensures that the connector can be firmly connected after insertion, improving the reliability of the connection. At the same time, it can avoid connection failure due to incorrect male or female ends, and improve the flexibility and convenience of the connection.

[0008] In some embodiments, the connecting portion extends along the first direction and is disposed at one end of the housing along the second direction. Both ends of the connecting portion along a third direction are provided with retaining portions. The retaining portions extend along the third direction towards the insertion protrusion and are connected to the housing. Along the second direction, the height of the retaining portions is half the height of the housing. The first direction, the second direction, and the third direction are perpendicular to each other.

[0009] By adopting the above technical solution, a enclosure is set at both ends of the third direction of the connecting part to form a "U-shaped" wrapping structure. Since the height of the enclosure is half the height of the shell, after the two connectors are inserted, the two enclosures on the same side abut against each other, which works with the connecting part to achieve a physical isolation effect. At the same time, it can play an auxiliary guiding role during insertion to prevent displacement and misalignment caused by lateral force during the insertion process.

[0010] In some embodiments, the connector protrusion is disposed near the other end of the housing along the second direction, and spaced apart between the two enclosure portions along the third direction. The connector protrusion extends along the first direction and has an opening on the side facing the connection portion along the second direction. The connector protrusion has a connector channel inside, which extends along the first direction and passes through the terminal.

[0011] With the above technical solution, the opening is set along the second direction towards the connection part. After the two connectors are plugged in, the openings of the upper and lower plugging protrusions are set opposite to each other, so that the wiring terminals at the openings can be connected accordingly to transmit current or signals.

[0012] In some embodiments, the connection opening is located at the bottom of the housing and is positioned close to the connector assembly along the first direction. The housing also includes a recessed area, which is correspondingly located between the two connector protrusions along a third direction and communicates with the connection opening.

[0013] With the above technical solution, the concave area is located between the two protruding parts along the third direction, providing additional guidance and buffer space for the insertion process of the connector.

[0014] In some embodiments, the connecting portion includes a connecting plate extending along the first direction and spaced apart from the connecting portion on both sides along the third direction. The connecting plate is correspondingly positioned between the two insertion protrusions along the third direction, and has an inclined protrusion and a stop protrusion at its top. Along the first direction, the inclined protrusion is located at the end of the connecting plate near the housing, and the stop protrusion is located at the end of the connecting plate away from the housing. The length of the connecting plate is greater than the length of the connecting portion.

[0015] Using the above technical solution, the length of the connecting plate is greater than the length of the connecting part, so that the stop protrusion can be inserted into the concave area and locked in place with the connecting opening. The inclined protrusion is located at the end of the connecting plate near the housing, so that when the two connecting parts need to be pulled out and separated, the stop protrusion can be dislodged from the connecting opening by pressing down the inclined protrusion, thereby separating the two connecting parts.

[0016] In some embodiments, the connector further includes a barrier spring disposed within the insertion channel. The barrier spring includes a fixing portion, a recessed portion, and an inclined portion arranged sequentially along the first direction. The fixing portion is disposed near the terminal, the recessed portion is bent away from the connector along the second direction, and the inclined portion is inclined towards the connector along the second direction. Along the third direction, the width of the fixing portion is greater than the width of the recessed portion and the width of the inclined portion.

[0017] By adopting the above technical solution, the width of the fixing part is greater than the width of the recessed part and the inclined part, which allows the fixing part to withstand greater mechanical stress and is more stable during the insertion process. The recessed part bends away from the connecting part, thereby increasing the friction with the inner wall of the insertion channel and preventing the blocking spring from loosening due to insertion and extraction forces. The inclined part tilts towards the connecting part to provide progressive guidance and guide the terminal block located at the opening to be accurately aligned.

[0018] In some embodiments, the connector channel includes a fixed section, an inclined section, and a connector section along the first direction, with the fixed section located at the terminal. The connector section is located within the connector protrusion, and its bottom is higher than the bottom of the fixed section. The bottom of the inclined section is inclined along the first direction from the fixed section towards the connector section. Along the third direction, the width of the fixed section is greater than the width of the inclined section and the width of the connector section.

[0019] Using the above technical solution, the fixed section, the inclined section and the insertion section are correspondingly arranged with the fixed part, the recessed part and the inclined part. The bottom of the inclined section is inclined from the fixed section to the insertion section in the first direction, thereby further increasing the frictional resistance with the recessed part and preventing the blocking spring from loosening.

[0020] In some embodiments, the fixing section includes a stop protrusion and a stop protrusion. The stop protrusions are respectively disposed on the sidewalls of the fixing section at both ends along the third direction and are located close to the inclined section along the first direction. Along the second direction, a gap is provided between the stop protrusion and the bottom of the fixing section for engaging and fixing with the fixing part of the blocking spring. The stop protrusion is disposed at the bottom of the fixing section and spaced apart from the stop protrusion along the first direction for abutting and limiting its position against the fixing part. A stop strip is provided on the upper wall of the inclined section near the connector assembly.

[0021] Using the above technical solution, the stop protrusion engages and is fixed with the fixing part of the blocking spring through a reserved gap, providing insertion direction locking and preventing the connector from being over-inserted. The anti-reverse protrusion is located at the bottom of the fixing section and abuts against the fixing part of the blocking spring, providing reverse direction limiting and preventing the connector from accidentally retracting.

[0022] In some embodiments, the connector further includes a terminal block extending along the first direction and disposed within the insertion channel, comprising a wire clamping portion, a insert portion, and a limiting portion. The wire clamping portion is crimped to the fixing portion for connecting a wire harness. The insert portion is disposed within the insertion section and bent along the second direction toward the connecting portion, with one end abutting against the surface of the inclined portion and the other end abutting against the end of the inclined portion. The limiting portion is disposed along the first direction between the wire clamping portion and the insert portion, and located within the inclined section, for abutting against and limiting the stop strip.

[0023] With the above technical solution, the insert portion is bent towards the connecting portion, and the two ends of the bend abut against the surface and end of the inclined portion, respectively, thereby preventing the terminal block from being pulled out backward due to insertion and extraction force.

[0024] In some embodiments, the enclosure portion has a connecting bend and a clearance area on the side facing the insertion protrusion along the third direction. The connecting bend is located at the end of the enclosure portion near the housing along the first direction and is connected to both the housing and the insertion protrusion to reinforce and fix the insertion protrusion. The clearance area is located at the end of the enclosure portion away from the housing along the first direction and is sized corresponding to the connecting bend.

[0025] Using the above technical solution, the connecting elbow is located at the end of the enclosure near the shell, connecting to both the shell and the connector protrusion to form a triangular support structure, significantly improving the bending and tensile strength of the connector protrusion. The clearance area is located at the end of the enclosure away from the shell, corresponding to the size of the connecting elbow, providing additional space for the connector insertion process and avoiding interference with the connector during insertion. Attached Figure Description

[0026] Figure 1 This is a perspective view of an embodiment of an interlocking fixed connector according to the present invention, wherein the wire harnesses on both sides are connected through the interlocking fixed connector.

[0027] Figure 2 This is a perspective view of a connector according to an embodiment of the interlocking fixed connector of this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a connector according to an embodiment of the interlocking fixed connector of this utility model;

[0029] Figure 4 This is a rear view of a connector according to an embodiment of the interlocking fixed connector of this utility model, wherein the wiring terminals are not shown;

[0030] Figure 5 This is a cross-sectional view of a connector according to an embodiment of the interlocking fixed connector of this utility model;

[0031] Figure 6 This is a side sectional view of an embodiment of an interlocking fixed connector according to the present invention;

[0032] Figure 7 This is a perspective view of the wiring terminals of an embodiment of an interlocking fixed connector according to the present invention;

[0033] In the picture:

[0034] 1. Interlocking fixed connector;

[0035] 2. Connecting parts;

[0036] 3. Housing; 30. Terminal; 31. Connection opening; 32. Recessed area;

[0037] 40. Connecting protrusion; 41. Connecting area; 42. Connecting part; 43. Enclosure part; 44. Opening; 45. Connecting channel; 450. Fixed section; 451. Inclined section; 452. Connecting section; 46. Connecting bend; 47. Clearance area;

[0038] 5. Connecting plate; 50. Inclined protrusion; 51. Stop protrusion;

[0039] 6. Barrier spring; 60. Fixing part; 61. Recessed part; 62. Inclined part; 63. Stop protrusion; 64. Anti-reverse protrusion; 65. Retention gap; 66. Stop bar;

[0040] 7. Terminal block; 70. Wire clamping part; 71. Insertion part; 72. Limiting part;

[0041] 8. Wiring harness. Detailed Implementation

[0042] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0043] refer to Figures 1 to 3 , Figure 1 A perspective view of an interlocking fixed connector 1 provided in an embodiment of the present invention is shown, wherein the wire harnesses 8 on both sides are connected through the interlocking fixed connector 1. Figure 2 A perspective view of the connector 2 in an interlocking fixed connector 1 provided by an embodiment of the present invention is shown; Figure 3 This diagram illustrates the structure of the connector 2 in an interlocking fixed connector 1 provided by an embodiment of the present invention.

[0044] like Figures 1 to 3 As shown, the technical solution provided in this application is an interlocking fixed connector 1, including a connector along a first direction ( Figure 1 The two connecting parts 2 (as shown in the X direction) are assembled and connected, wherein:

[0045] The connector 2 includes a housing 3, one end of which is a terminal 30 along a first direction, and the other end is provided with a connector assembly. The connector assemblies of the two connectors 2 are arranged opposite each other along the first direction and symmetrically along a second direction. The connector assembly includes components along the second direction (…). Figure 1 (As shown in the Z direction) The insertion protrusion 40, the insertion area 41 and the connecting part 42 are arranged sequentially.

[0046] Along the first direction, the connecting part 42 of any one of the connectors 2 and the housing 3 of the other connector 2 are respectively provided with a stop protrusion 51 and a connecting opening 31. The stop protrusion 51 and the connecting opening 31 are matched in size and are used so that when the two connectors 2 are inserted and assembled along the first direction, the insertion protrusion 40 of one connector 2 is inserted into the insertion area 41 of the other connector 2, and the stop protrusion 51 and the connecting opening 31 are locked together.

[0047] This application provides an interlocking fixed connector 1, in which the two connectors 2 have the same structure and no distinction between male and female ends. During assembly, the interlocking components of the two connectors 2 are symmetrically arranged, so that the interlocking protrusions 40 of each other can be accurately inserted into the interlocking area 41 of the other. The locking structure between the stop protrusion 51 and the connection opening 31 ensures that the connector can be firmly connected after insertion, improving the reliability of the connection. At the same time, it can avoid connection failure due to incorrect male and female ends, and improve the connection flexibility and convenience.

[0048] The symmetrical plug-in structure allows users to complete the plugging without visual alignment. The male-female-nothing design eliminates directional errors during plugging and reduces the risk of interface damage caused by reverse plugging. This makes the interlocking fixed connector 1 in this solution universal in different devices and application scenarios. The interlocking design makes the connector perform better in space-constrained or fast plugging and unplugging situations, such as in confined spaces or test and measurement equipment that requires frequent plugging and unplugging. Users do not need to painstakingly align the male and female ends and can quickly complete the connection, improving work efficiency.

[0049] In some embodiments, reference Figures 1 to 3 The connecting part 42 extends along the first direction and is disposed at one end of the housing 3 along the second direction. The connecting part 42 extends along the third direction. Figure 1 Both ends of the housing 3 (as shown in the Y direction) are provided with a retaining portion 43. The retaining portion 43 extends towards the insertion protrusion 40 in a third direction and is connected to the housing 3. In the second direction, the height of the retaining portion 43 is half the height of the housing 3. The first direction, the second direction and the third direction are perpendicular to each other.

[0050] For example, enclosure portions 43 are provided at both ends of the third direction of the connecting portion 42 to form a "U-shaped" wrapping structure. Since the height of the enclosure portion 43 is half the height of the shell 3, after the two connectors 2 are inserted, the two enclosure portions 43 located on the same side abut against each other, which cooperates with the connecting portion 42 to achieve a physical isolation effect. At the same time, it can play an auxiliary guiding role during insertion to prevent displacement and misalignment caused by lateral force during insertion.

[0051] In some embodiments, reference Figures 4 to 7 The insertion protrusion 40 is disposed near the other end of the housing 3 along the second direction, and is spaced apart between the two enclosure portions 43 along the third direction. The insertion protrusion 40 extends along the first direction, and has an opening 44 on the side facing the connecting portion 42 along the second direction. The insertion protrusion 40 has an insertion channel 45 inside, which extends along the first direction and passes through the terminal 30.

[0052] For example, the opening 44 is provided facing the connecting part 42 along the second direction. After the two connectors 2 are plugged in, the openings 44 of the upper and lower plugging protrusions 40 are arranged opposite to each other, so that the wiring terminals 7 located at the openings 44 can be connected accordingly to transmit current or signals.

[0053] In some embodiments, reference Figures 1 to 3 The connection opening 31 is located at the bottom of the housing 3 and is positioned close to the connector assembly along the first direction. The housing 3 also includes a recessed area 32, which is positioned between the two connector protrusions 40 along the third direction and communicates with the connection opening 31.

[0054] For example, the recessed area 32 is disposed between the two mating protrusions 40 in a third direction, providing additional guidance and buffer space for the mating process of the connector 2. At the same time, the connection design of the connection opening 31 and the recessed area 32 ensures the alignment accuracy of the connector during mating and reduces the risk of poor contact or damage caused by improper mating.

[0055] refer to Figures 4 to 7 , Figure 4 The diagram shows a rear view of a connector 2 in an interlocking fixed connector 1 provided by an embodiment of the present invention, wherein the terminal block 7 is not shown; Figure 5 A cross-sectional view of the connector 2 in an interlocking fixed connector 1 provided by an embodiment of the present invention is shown; Figure 6 This image shows a side sectional view of an interlocking fixed connector 1 provided in an embodiment of the present invention; Figure 7 A perspective view of the wiring terminal 7 in an interlocking fixed connector 1 provided by an embodiment of the present invention is shown.

[0056] In some embodiments, reference Figures 4 to 7 The connecting portion 42 includes a connecting plate 5, which extends along a first direction and is spaced apart from the connecting portion 42 on both sides along a third direction. The connecting plate 5 is correspondingly disposed between two insertion protrusions 40 along the third direction, and has an inclined protrusion 50 and a stop protrusion 51 on its top. Along the first direction, the inclined protrusion 50 is disposed at the end of the connecting plate 5 near the housing 3, and the stop protrusion 51 is disposed at the end of the connecting plate 5 away from the housing 3. The length of the connecting plate 5 is greater than the length of the connecting portion 42.

[0057] For example, the length of the connecting plate 5 is greater than the length of the connecting portion 42, so that the stop protrusion 51 can be inserted into the recessed area 32 and engaged with the connecting opening 31. The inclined protrusion 50 is provided at one end of the connecting plate 5 near the housing 3, so that when the two connecting pieces 2 need to be pulled out and separated, the stop protrusion 51 can be dislodged from the connecting opening 31 by pressing down the inclined protrusion 50, thereby separating the two connecting pieces 2.

[0058] In some embodiments, reference Figures 4 to 7 The connector 2 also includes a blocking spring 6, which is disposed within the insertion channel 45 and includes a fixing part 60, a recessed part 61, and an inclined part 62 arranged sequentially along a first direction. The fixing part 60 is disposed near the terminal 30, the recessed part 61 is bent away from the connector 42 along a second direction, and the inclined part 62 is inclined towards the connector 42 along the second direction. Along a third direction, the width of the fixing part 60 is greater than the width of the recessed part 61 and the width of the inclined part 62.

[0059] For example, the width of the fixing portion 60 is greater than the width of the recessed portion 61 and the inclined portion 62, so that the fixing portion 60 can withstand greater mechanical stress and is more stable during the insertion process. The recessed portion 61 bends away from the connecting portion 42, thereby increasing the friction with the inner wall of the insertion channel 45 and preventing the blocking spring 6 from loosening due to insertion and extraction forces. The inclined portion 62 is inclined towards the connecting portion 42 to provide progressive guidance and guide the terminal 7 located at the opening 44 to be accurately aligned.

[0060] In some embodiments, reference Figures 4 to 7 The connector channel 45 includes a fixed section 450, an inclined section 451, and a connector section 452 along a first direction. The fixed section 450 is located at the terminal 30. The connector section 452 is located within the connector protrusion 40, and its bottom is higher than the bottom of the fixed section 450. The bottom of the inclined section 451 is inclined along the first direction from the fixed section 450 towards the connector section 452. Along a third direction, the width of the fixed section 450 is greater than the width of the inclined section 451 and the width of the connector section 452.

[0061] For example, the fixed section 450, the inclined section 451 and the insertion section 452 are provided corresponding to the fixed part 60, the recessed part 61 and the inclined part 62. The bottom of the inclined section 451 is inclined from the fixed section 450 to the insertion section 452 in the first direction, thereby further increasing the frictional resistance with the recessed part 61 and preventing the blocking spring 6 from becoming loose.

[0062] In some embodiments, reference Figures 4 to 7 The fixed section 450 includes a stop protrusion 63 and a stop protrusion 64. The stop protrusion 63 is respectively provided on the sidewalls at both ends of the fixed section 450 along a third direction and is positioned close to the inclined section 451 along a first direction. A retention gap 65 is provided between the stop protrusion 63 and the bottom of the fixed section 450 along a second direction for engaging and fixing with the fixing part 60 of the blocking spring 6. The stop protrusion 64 is provided at the bottom of the fixed section 450 and spaced apart from the stop protrusion 63 along the first direction for abutting and limiting the movement of the fixing part 60. A stop strip 66 is provided on the upper wall of the inclined section 451 near the connector assembly.

[0063] For example, the stop protrusion 63 engages with the fixing portion 60 of the barrier spring 6 via the retention gap 65, providing insertion direction locking and preventing over-insertion of the connector. The anti-reverse protrusion 64 is located at the bottom of the fixing section 450 and abuts against the fixing portion 60 of the barrier spring 6, providing reverse direction limiting and preventing accidental disengagement of the connector. This dual limiting design further enhances the stability of the connector during insertion, ensuring accurate positioning and a secure connection during the insertion process.

[0064] In some embodiments, reference Figure 6 and Figure 7The connector 2 also includes a terminal block 7, which extends along a first direction and is located within the insertion channel 45. The terminal block 7 includes a wire clamping portion 70, a insert portion 71, and a limiting portion 72. The wire clamping portion 70 is crimped to the fixing portion 60 for connecting the wire harness 8. The insert portion 71 is located within the insertion section 452 and is bent along a second direction towards the connector 42. One end of the insert portion 71 abuts against the surface of the inclined portion 62, and the other end abuts against the end of the inclined portion 62. The limiting portion 72 is located along the first direction between the wire clamping portion 70 and the insert portion 71, within the inclined section 451, and is used to abut against and limit the stop bar 66.

[0065] For example, the insert portion 71 is bent towards the connecting portion 42, with the two ends of the bend abutting against the surface and end of the inclined portion 62, respectively, thereby preventing the terminal 7 from being pulled back due to insertion or extraction force. Furthermore, as... Figure 6 As shown, when the two connectors 2 are inserted, the insert portions 71 at the corresponding openings 44 at the top and bottom abut against each other and press down on each other as they are inserted until the assembly connection is completed. The bent tops of the two insert portions 71 are intersected. At the same time, because the inclined portion 62 of the blocking spring 6 is inclined, the inclined portion 62 can generate upward restoring potential energy after being pressed down with the insert portion 71, so that the two insert portions 71 can be tightly connected to form an interlocking structure to ensure the stable connection of the connector.

[0066] Specifically, housing 3 is a plastic shell, barrier spring 6 is made of stainless steel, and terminal 7 is made of copper alloy by stamping. The copper alloy is made of red copper and has a silver-plated surface. Compared with male and female connectors, housing 3 and terminal 7 in this solution only require one set of stamping molds, thereby reducing mold development costs.

[0067] In some embodiments, reference Figure 3 The enclosure portion 43 has a connecting bend 46 and a clearance area 47 on the side facing the insertion protrusion 40 along a third direction. The connecting bend 46 is located at the end of the enclosure portion 43 near the housing 3 along the first direction and is connected to both the housing 3 and the insertion protrusion 40 to reinforce and fix the insertion protrusion 40. The clearance area is located at the end of the enclosure portion 43 away from the housing 3 along the first direction and is sized corresponding to the connecting bend 46.

[0068] For example, the connecting bend 46 is located at the end of the enclosure 43 near the housing 3, and is connected to both the housing 3 and the insertion protrusion 40 to form a triangular support structure, which significantly improves the bending and pulling strength of the insertion protrusion 40. The clearance area 47 is located at the end of the enclosure 43 away from the housing 3, and corresponds to the size of the connecting bend 46, providing additional space for the insertion process of the connector 2 and avoiding interference with the connector during the insertion process.

[0069] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A pluggable fixed connector, characterized in that, Includes two connectors assembled and connected along the first direction, wherein: The connector includes a housing, one end of which is a terminal along the first direction, and the other end is provided with a plug-in assembly; the plug-in assemblies of the two connectors are arranged opposite to each other along the first direction and symmetrically arranged along the second direction; the plug-in assembly includes a plug-in protrusion, a plug-in area, and a connecting portion arranged sequentially along the second direction; Along the first direction, the connecting portion of any one of the connectors and the housing of the other connector are respectively provided with a stop protrusion and a connecting opening. The stop protrusion and the connecting opening are matched in size and are configured so that when the two connectors are inserted and assembled along the first direction, the insertion protrusion of one connector is inserted into the insertion area of ​​the other connector, and the stop protrusion and the connecting opening are engaged and fixed.

2. The interlocking fixed connector according to claim 1, characterized in that, The connecting portion extends along the first direction and is located at one end of the housing along the second direction. Both ends of the connecting portion along the third direction are provided with enclosure portions. The enclosure portions extend along the third direction toward the direction close to the insertion protrusion and are connected to the housing. Along the second direction, the height of the enclosure portion is half the height of the housing. The first direction, the second direction, and the third direction are perpendicular to each other.

3. The interlocking fixed connector according to claim 2, characterized in that, The insertion protrusion is disposed near the other end of the housing along the second direction, and is spaced apart between the two enclosure portions along the third direction; the insertion protrusion extends along the first direction, and has an opening on the side facing the connection portion along the second direction; the insertion protrusion has an insertion channel inside, the insertion channel extends along the first direction, and passes through the terminal.

4. The interlocking fixed connector according to claim 1, characterized in that, The connection opening is located at the bottom of the housing and is positioned close to the connector assembly along the first direction; the housing also includes a recessed area, which is positioned between the two connector protrusions along a third direction and communicates with the connection opening.

5. The interlocking fixed connector according to claim 3, characterized in that, The connecting portion includes a connecting plate extending along the first direction and spaced apart from the connecting portion on both sides along the third direction; the connecting plate is correspondingly disposed between the two insertion protrusions along the third direction, and has an inclined protrusion and a stop protrusion at the top; along the first direction, the inclined protrusion is disposed at the end of the connecting plate near the housing, and the stop protrusion is disposed at the end of the connecting plate away from the housing, and the length of the connecting plate is greater than the length of the connecting portion.

6. The interlocking fixed connector according to claim 3, characterized in that, The connector further includes a blocking spring, which is disposed in the insertion channel and includes a fixing part, a recessed part and an inclined part arranged sequentially along the first direction. The fixing part is disposed near the terminal, the recessed part is bent away from the connector along the second direction, and the inclined part is inclined towards the connector along the second direction. Along the third direction, the width of the fixing part is greater than the width of the recessed part and the width of the inclined part.

7. The interlocking fixed connector according to claim 6, characterized in that, The connector channel includes a fixed section, an inclined section, and a connector section along the first direction. The fixed section is located at the terminal. The connector section is located inside the connector protrusion, and its bottom is higher than the bottom of the fixed section. The bottom of the inclined section is inclined from the fixed section to the connector section along the first direction. Along the third direction, the width of the fixed section is greater than the width of the inclined section and the width of the connector section.

8. The interlocking fixed connector according to claim 7, characterized in that, The fixing section includes a stop protrusion and a stop protrusion. The stop protrusion is respectively disposed on the sidewalls at both ends of the fixing section along the third direction and is disposed close to the inclined section along the first direction. Along the second direction, a gap is provided between the stop protrusion and the bottom of the fixing section for engaging and fixing with the fixing part of the blocking spring. The stop protrusion is disposed at the bottom of the fixing section and is spaced apart from the stop protrusion along the first direction for abutting and limiting the fixing part. A stop strip is provided on the upper wall of the inclined section near the connector assembly.

9. The interlocking fixed connector according to claim 8, characterized in that, The connector further includes a terminal block extending along the first direction and disposed within the insertion channel, comprising a wire pressing portion, a insert portion, and a limiting portion; the wire pressing portion is crimped to the fixing portion for connecting the wire harness; the insert portion is disposed within the insertion section and bent along the second direction toward the connection portion, one end of the insert portion abutting against the surface of the inclined portion, and the other end abutting against the end of the inclined portion; the limiting portion is disposed along the first direction between the wire pressing portion and the insert portion and located within the inclined section for abutting against and limiting the stop strip.

10. The interlocking fixed connector according to claim 2, characterized in that, The enclosure portion is provided with a connecting bend and a clearance area on the side facing the insertion protrusion along the third direction; the connecting bend is provided at the end of the enclosure portion near the housing along the first direction and is connected to the housing and the insertion protrusion respectively, for strengthening and fixing the insertion protrusion; the clearance area is provided at the end of the enclosure portion away from the housing along the first direction and is provided in accordance with the size of the connecting bend.

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