Terminal module, connector and shell

Abstract

The utility model belongs to the field of electric connectors, and particularly relates to a terminal module, a connector and a shell. In order to simplify the assembling process of a connector, the utility model provides a terminal module, a connector and a shell. The terminal module comprises a shell and n terminals, n is larger than or equal to 1, the shell is used for being installed in a shell installation cavity of the connector during use, n terminal installation cavities are formed in the shell, each terminal installation cavity is provided with a cantilever-convex hull structure, each cantilever-convex hull structure comprises a cantilever and a convex hull arranged at the tail end of the cantilever, and n is larger than or equal to 1. The convex hull is used for being in abutting contact with the cavity wall of the shell installation cavity in the using process so that the cantilever can deform, and the front end of the cantilever is provided with a limiting part used for being located right behind the insertion part of the terminal after the cantilever deforms so that a TPA structure can be formed. The connector comprises the terminal module. The TPA structure is formed by the deformed cantilever-convex hull structure, the structure is simple, and the whole connector can be assembled by only two steps in the assembly process, so that the assembly is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connectors, and in particular relates to a terminal module, connector and housing. Background Technology

[0002] Connectors are devices used to transmit current or signals. In connectors, to prevent the terminals from coming out of the connector under the pulling force of external wires, a TPA structure (Terminal Position Assurance, also known as a terminal position guarantee structure) is generally set on the connector. The TPA structure provides secondary fixation for the terminals, thereby preventing the terminals from coming out of the connector.

[0003] Chinese invention patent with authorization announcement number CN114256670B and authorization announcement date of October 18, 2024 discloses a connector assembly, a kit of connector modules, and a method for manufacturing a connector assembly. The patent discloses a connector assembly with a TPA structure. The connector assembly includes a second terminal position guarantee (TPA) mechanism, which is used to ensure that each electrical connection element (i.e., terminal) housed in a first module is fully inserted into its corresponding cavity.

[0004] In the aforementioned patent, when assembling the connector assembly, the electrical connection element needs to be installed in the first module first, then the second terminal position securing mechanism needs to be engaged with the housing of the first module, and finally the first module needs to be installed on the second module. This requires three steps for assembly, which is cumbersome. Utility Model Content

[0005] The purpose of this utility model is to provide a terminal module to solve the technical problem that the current connector assembly with a terminal position guarantee mechanism is relatively troublesome to assemble.

[0006] The purpose of this invention is also to provide a connector to solve the same technical problems mentioned above.

[0007] The purpose of this invention is also to provide a housing to solve the same technical problems mentioned above.

[0008] To achieve the above objectives, the technical solution for the terminal module provided by this utility model is as follows:

[0009] A terminal module includes a housing and n terminals, n≥1, installed within the housing. At least a portion of the housing is used to be installed in a housing mounting cavity of a connector during use. The extension direction of the terminals is defined as the front-rear direction. The housing has n terminal mounting cavities, each housing containing one terminal. Each terminal has an insertion portion for inserting a pin during connector mating. Each terminal mounting cavity is equipped with a cantilever-protrusion structure, which includes a cantilever and a protrusion at the end of the cantilever. The protrusion is used to press against the cavity wall of the housing mounting cavity or other terminal modules during use, causing the cantilever to deform and extend into the corresponding terminal mounting cavity. The front end of the cantilever has a limiting portion that is located behind the insertion portion before the cantilever deforms and directly behind the insertion portion after the cantilever deforms, forming a TPA structure for limiting the terminal's rearward movement to a limit position.

[0010] Furthermore, all terminals are arranged in a row along the vertical direction, with cantilever arms located on the left, right, or both sides of the terminal mounting cavity.

[0011] Furthermore, all terminals are divided into two groups, namely the first group of terminals on the left and the second group of terminals on the right. In each group of terminals, all terminals in the group are arranged in a row along the vertical direction. The cantilever-convex structure corresponding to the first group of terminals is located on the left side of the terminal mounting cavity, and the cantilever-convex structure corresponding to the second group of terminals is located on the right side of the terminal mounting cavity.

[0012] Furthermore, the terminal is a signal terminal used for transmitting signals.

[0013] Furthermore, the limiting part is the front end face of the cantilever.

[0014] The beneficial effects of the terminal module provided by this utility model are as follows: This utility model is a pioneering invention. When assembling the connector, the terminal is first inserted into the terminal mounting cavity. At this time, since the cantilever has not deformed, the operator can easily insert the terminal into the terminal mounting cavity. After installation, the limiting part is located behind the insertion part, meaning that the limiting part will not interfere with the terminal during installation. Finally, at least one terminal module is installed in the housing mounting cavity. During installation, the convex hull contacts the cavity wall of the housing mounting cavity or other terminal modules, causing the cantilever to deform. At this time, the limiting part moves to the rear of the insertion part, forming a TPA structure to limit the backward movement of the terminal. The TPA structure is composed of the deformed cantilever-convex hull structure, which is simple in structure. The entire connector assembly process only requires two steps, making assembly convenient and effectively improving production efficiency.

[0015] To achieve the above objectives, the technical solution for the connector provided by this utility model is as follows:

[0016] A connector includes a plastic shell and at least one terminal module. The plastic shell has a shell mounting cavity. The terminal module includes a shell and n terminals, n ≥ 1, mounted within the shell. At least a portion of the shell is used to be mounted within the shell mounting cavity of the connector during use. The extension direction of the terminals is defined as the front-rear direction. The shell has n terminal mounting cavities, each containing one terminal. Each terminal has an insertion portion for inserting a pin during connector mating. Each terminal mounting cavity is configured with a cantilever-protrusion structure, comprising a cantilever and a protrusion at the end of the cantilever. The protrusion is used to engage with the cavity of the shell mounting cavity during use. The cantilever is pressed against the wall or other terminal modules to deform and extend into the corresponding terminal mounting cavity. The front end of the cantilever has a limiting part that is located behind the insertion part before the cantilever deforms and directly behind the insertion part after the cantilever deforms, so as to form a TPA structure for limiting the extreme position of the terminal to move backward. When there is one terminal module, the protrusion of the terminal module is pressed against the cavity wall of the housing mounting cavity. When there are at least two terminal modules, each terminal module is arranged adjacent to each other in the terminal mounting cavity in the left and right direction, and each protrusion of each terminal module is pressed against the housing or cavity wall of the housing mounting cavity of other terminal modules.

[0017] Furthermore, all terminals are arranged in a row along the vertical direction, with cantilever arms located on the left, right, or both sides of the terminal mounting cavity.

[0018] Furthermore, all terminals are divided into two groups, namely the first group of terminals on the left and the second group of terminals on the right. In each group of terminals, all terminals in the group are arranged in a row along the vertical direction. The cantilever-convex structure corresponding to the first group of terminals is located on the left side of the terminal mounting cavity, and the cantilever-convex structure corresponding to the second group of terminals is located on the right side of the terminal mounting cavity.

[0019] Furthermore, the terminal is a signal terminal used for transmitting signals.

[0020] Furthermore, the limiting part is the front end face of the cantilever.

[0021] The beneficial effects of the connector provided by this utility model are as follows: This utility model is a pioneering invention. When assembling the connector, the terminals are first inserted into the terminal mounting cavity. At this time, since the cantilever has not deformed, the operator can easily insert the terminals into the terminal mounting cavity. After installation, the limiting part is located behind the insertion part, meaning that the limiting part will not interfere with the terminals during installation. Finally, at least one terminal module is installed in the housing mounting cavity. During installation, the convex hull contacts the cavity wall of the housing mounting cavity or other terminal modules, causing the cantilever to deform. At this time, the limiting part moves to the rear of the insertion part, forming a TPA structure to limit the backward movement of the terminals. The TPA structure is composed of a deformed cantilever-convex hull structure, which is simple in structure. The entire connector assembly process only requires two steps, making assembly convenient and effectively improving production efficiency.

[0022] To achieve the above objectives, the technical solution for the housing provided by this utility model is as follows:

[0023] A housing, at least a portion of which is used to be mounted in a housing mounting cavity of a connector during use, the housing comprising n terminal mounting cavities, n≥1, the extension direction of the terminal mounting cavities being defined as the front-rear direction, each terminal mounting cavity being used to mount a terminal for insertion of a pin in the front-rear direction during use, each terminal mounting cavity being configured with a cantilever-protrusion structure, the cantilever-protrusion structure comprising a cantilever and a protrusion disposed at the end of the cantilever, the protrusion being used to press against the cavity wall of the housing mounting cavity or other housing top contact during use, so that the cantilever deforms and extends into the corresponding terminal mounting cavity, the front end of the cantilever having a limiting portion for being located behind the insertion portion of the terminal before the cantilever deforms and directly behind the insertion portion after the cantilever deforms, to form a TPA structure for limiting the extreme position of the terminal's rearward movement.

[0024] Furthermore, all terminal mounting cavities are arranged in a row along the vertical direction, with cantilever arms located on the left, right, or both sides of the terminal mounting cavity.

[0025] Furthermore, all terminal mounting cavities are divided into two groups, namely the first group of terminal mounting cavities located on the left and the second group of terminal mounting cavities located on the right. In each group of terminal mounting cavities, all terminal mounting cavities within the group are arranged in a row along the vertical direction. The cantilever-convex hull structure corresponding to the first group of terminal mounting cavities is located on the left side of the terminal mounting cavity, and the cantilever-convex hull structure corresponding to the second group of terminal mounting cavities is located on the right side of the terminal mounting cavity.

[0026] Furthermore, the limiting part is the front end face of the cantilever.

[0027] The beneficial effects of the housing provided by this utility model are as follows: This utility model is a pioneering invention. When assembling a connector using the housing, the terminals are first inserted into the terminal mounting cavity to form a terminal module. At this time, since the cantilever does not deform, the operator can easily insert the terminals into the terminal mounting cavity. After installation, the limiting part is located behind the insertion part, meaning that the limiting part will not interfere with the terminals during installation. Finally, at least one terminal module is installed in the housing mounting cavity. During installation, the convex hull contacts the cavity wall of the housing mounting cavity or other terminal modules, causing the cantilever to deform. At this time, the limiting part moves to the rear of the insertion part, forming a TPA structure to limit the backward movement of the terminals. The TPA structure is composed of a deformed cantilever-convex hull structure, which is simple in structure. The entire connector assembly process only requires two steps, making assembly convenient and effectively improving production efficiency. Attached Figure Description

[0028] Figure 1 This is an exploded view of the first specific embodiment of the connector of this utility model;

[0029] Figure 2 for Figure 1 Exploded view of the middle terminal module

[0030] Figure 3 for Figure 1 Schematic diagram of the middle terminal module;

[0031] Figure 4 for Figure 1 Cross-sectional view of the middle terminal module;

[0032] Figure 5 for Figure 1 Rear view of the middle terminal module;

[0033] Figure 6 This is a rear view of the terminal module in the second specific embodiment of the connector of this utility model;

[0034] Figure 7 This is a rear view of the terminal module in the third specific embodiment of the connector of this utility model;

[0035] Figure 8 This is a rear view of the terminal module in the fourth specific embodiment of the connector of this utility model;

[0036] Figure 9 This is a rear view of the terminal module in the fifth specific embodiment of the connector of this utility model;

[0037] Figure 10 This is a structural schematic diagram of the sixth specific embodiment of the connector of this utility model;

[0038] Figure 11 This is a schematic diagram of the sixth specific embodiment of the connector of this utility model, omitting the protective cover;

[0039] Figure 12 This is a front view of the sixth specific embodiment of the connector of this utility model, omitting the protective cover;

[0040] Figure 13 for Figure 12 Structural diagram omitting terminal modules;

[0041] Figure 14 for Figure 12 A schematic diagram of the terminal module in the diagram;

[0042] Figure 15 for Figure 12 A front view of the terminal module in the middle;

[0043] Figure 16 for Figure 15 AA view;

[0044] Figure 17 This is a structural schematic diagram of the seventh specific embodiment of the connector of this utility model;

[0045] Figure 18 This is a schematic diagram of the seventh specific embodiment of the connector of this utility model, omitting the protective cover;

[0046] Figure 19 This is a front view of the seventh specific embodiment of the connector of this utility model, omitting the protective cover;

[0047] Figure 20 for Figure 19 Structural diagram omitting terminal modules;

[0048] Figure 21 for Figure 19 A schematic diagram of the terminal module after wires have been installed;

[0049] Figure 22 for Figure 19 A front view of the terminal module after the wires have been installed;

[0050] Figure 23 for Figure 22 BB view;

[0051] Figure 24 for Figure 19 A schematic diagram of the shell structure in the middle;

[0052] Figure 25 This is a front view of the terminal module after wires have been installed in the eighth specific embodiment of the connector of this utility model.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Plastic shell; 1-1. Shell mounting cavity; 2. Shell; 2-1. Guide hole; 2-2. Limiting hole; 2-3. Protrusion; 2-4. Cantilever; 2-5. Barb; 2-6. Terminal mounting cavity; 3. Terminal; 3-1. Insertion part; 3-2. Spring; 4. Protective cover; 5. Wire. Detailed Implementation

[0055] To address the problems in the background technology, the core inventive concept of this utility model is as follows: the connector is assembled in two steps using the deformable characteristics of the cantilever. In the first step, the cantilever is kept undeformed, which facilitates the insertion of the terminal into the housing. In the second step, the cantilever is deformed and locked behind the terminal insertion part, thereby forming a TPA structure.

[0056] The present invention will be further described in detail below with reference to the embodiments.

[0057] Specific embodiments of the connector provided by this utility model:

[0058] like Figures 1-25 As shown, to facilitate understanding by those skilled in the art, seven specific embodiments are provided in this utility model, all of which are variations of the same basic specific embodiment.

[0059] As a specific embodiment of the first type, the connector includes a plastic shell 1 and at least one terminal module. The plastic shell 1 has a shell mounting cavity 1-1. The terminal module includes a shell 2 and n terminals 3 installed in the shell 2, where n ≥ 1. At least a portion of the shell 2 is used to be installed in the shell mounting cavity 1-1 of the connector during use. The extension direction of the terminal 3 is defined as the front-rear direction. The shell 2 is provided with n terminal mounting cavities 2-6 extending in the front-rear direction. Each terminal mounting cavity 2-6 has a terminal 3 installed in it. Each terminal 3 has an insertion portion 3-1 for inserting a pin in the front-rear direction during connector mating. Each terminal mounting cavity 2-6 is provided with a cantilever-protrusion structure, which includes a cantilever 2-4 and a protrusion 2-3 provided at the end of the cantilever 2-4. The protrusion 2-3 is used to contact the cavity wall of the shell mounting cavity 1-1 during use. Other terminal modules press against each other to deform the cantilever 2-4 and extend it into the corresponding terminal mounting cavity 2-6. The front end of the cantilever 2-4 has a limiting part that is located behind the insertion part 3-1 before the cantilever 2-4 deforms and directly behind the insertion part 3-1 after the cantilever 2-4 deforms, so as to form a TPA structure for limiting the extreme position of the terminal 3 to move backward. The width of all terminal modules in the left-right direction is greater than the width of the housing mounting cavity 1-1 in the left-right direction. When there is one terminal module, the protrusion 2-3 of the terminal module presses against the cavity wall of the housing mounting cavity 1-1. When there are at least two terminal modules, each terminal module is arranged adjacent to each other in the left-right direction in the terminal mounting cavity 2-6, and each protrusion 2-3 of each terminal module presses against the housing 2 or the cavity wall of the housing mounting cavity 1-1 of other terminal modules.

[0060] Before use, the connector can be protected by the protective cover 4. When using the connector, the protective cover 4 needs to be removed. At the same time, the terminal 3 is electrically connected to the wire 5. After the connector is plugged in, the signal or current can be transmitted to other devices through the wire 5.

[0061] In the specific implementation of the basic category 1-1, such as Figures 1-5 As shown, terminal 3 is a power terminal, and there are an even number of power terminals, specifically two. The housing 2 also has a limiting hole 2-2 that mates with the spring contact 3-2 on the power terminal. In use, the pin is inserted into the power terminal through the guide hole 2-1, and the entire housing 2 is located within the housing mounting cavity 1-1. Of course, in this embodiment, the guide hole 2-1 can also be replaced with a clearance hole, as long as it ensures that the pin can be inserted into terminal 3.

[0062] In the first and second basic implementation methods, with reference to Figures 1-5 On the basis of, such as Figure 6 As shown, there is one terminal module and four power terminals.

[0063] In the specific implementation methods of the first to third basic categories, with reference to Figures 1-5 On the basis of, such as Figure 7 As shown, there are two terminal modules and four power terminals. At this time, all the protrusions 2-3 are in contact with the cavity wall of the housing mounting cavity 1-1.

[0064] In the specific implementations of the first to fourth basic categories, with reference to Figures 1-5 On the basis of, such as Figure 8 As shown, there are two terminal modules and four power terminals. At this time, the protrusion 2-3 of the first terminal module is in contact with the cavity wall of the housing mounting cavity 1-1, and the protrusion 2-3 of the second terminal module is in contact with the housing 2 of the first terminal module.

[0065] In the specific implementation methods of the first to fifth basic categories, with reference to Figures 1-5 On the basis of, such as Figure 9 As shown, there are two terminal modules and four power terminals. At this time, the protrusion 2-3 of the first terminal module is in contact with the cavity wall of the housing mounting cavity 1-1, and each protrusion 2-3 of the second terminal module is in contact with the cavity wall of the housing mounting cavity 1-1 and the housing 2 of the first terminal module, respectively.

[0066] In other specific implementations, the number of terminal modules may be three, four or more, and the number of terminals 3 may be six, eight or more, which will not be listed here.

[0067] In the specific embodiments of categories 1-1, 1-2, 1-3, 1-4 and 1-5, terminal 3 is a power supply terminal; in the following three specific embodiments, terminal 3 is a signal terminal.

[0068] In specific implementations of categories 1-6, such as Figures 10-16 As shown, terminal 3 is a signal terminal, and housing 2 is completely located within housing mounting cavity 1-1.

[0069] In specific implementations of categories 1-7, such as Figures 17-24 As shown, terminal 3 is a signal terminal, and the front end of housing 2 protrudes from housing mounting cavity 1-1, that is, part of housing 2 is located inside housing mounting cavity 1-1.

[0070] In specific embodiments of categories 1-8, such as Figure 25 As shown, terminal 3 is a signal terminal, and the number of terminals 3 is an odd number, specifically three.

[0071] Unlike the specific implementations of categories 1-1, 1-2, 1-3, 1-4 and 1-5, in the specific implementations of categories 1-6, 1-7 and 1-8, terminal 3 is a signal terminal, so the number of terminals 3 can be an odd number. In different specific implementations, there can be one, two, three or more signal terminals.

[0072] Unlike the specific embodiments of classes 1-1, 1-2, 1-3, 1-4, 1-5 and 1-6, in the specific embodiments of classes 1-7 and 1-8, the front end of the housing 2 protrudes from the housing mounting cavity 1-1, that is, a part of the housing 2 is installed in the housing mounting cavity 1-1.

[0073] In summary, in this embodiment, one, two, three, or more terminal modules can be installed in the housing mounting cavity 1-1. For each terminal module, at least a portion of the housing 2 needs to be located within the housing mounting cavity 1-1, as long as the protrusion 2-3 can press against the housing mounting cavity 1-1 or the housing 2 of other terminal modules. Meanwhile, for the connector, the total number of terminals 3 (i.e., the number of terminals 3 in all terminal modules) can be one, two, three, or more. When the number of terminals 3 is odd, the terminals 3 include signal terminals and may also include power terminals (for example, there are three terminals 3, two of which are power terminals and one is a signal terminal). When the number of terminals 3 is even, the terminals 3 can all be signal terminals, all of which can be power terminals, or both signal terminals and power terminals can be included simultaneously.

[0074] When assembling the connector, terminal 3 is first inserted into terminal mounting cavity 2-6. At this time, since cantilever 2-4 is not deformed, the operator can easily insert terminal 3 into terminal mounting cavity 2-6. After installation, the limiting part is located behind the insertion part 3-1, meaning that the limiting part will not interfere with terminal 3 during installation. Finally, at least one terminal module is installed in housing mounting cavity 1-1. During installation, protrusion 2-3 presses against the cavity wall of housing mounting cavity 1-1 or other terminal modules, causing cantilever 2-4 to deform. At this time, the limiting part moves to the rear of insertion part 3-1, forming a TPA structure to limit the backward movement of terminal 3. The TPA structure is composed of the deformed cantilever-protrusion structure, which is simple in structure and only requires two steps in the entire connector assembly process, making assembly convenient and effectively improving production efficiency.

[0075] To simplify the structure, the position of the cantilever-convex hull structure in this invention has been improved as follows:

[0076] like Figures 1-5 and Figures 7-8As shown, in the second-1st specific embodiment, all terminals 3 are arranged in a row along the vertical direction. The cantilever-protrusion structure (including cantilever 2-4 and protrusion 2-3) is located on the left, right, or both sides of the terminal mounting cavity 2-6, resulting in a compact and simple structure. Barbs 2-5 are provided on the upper and lower sides of the housing 2. Corresponding grooves are provided on the plastic shell 1 (specifically, on the cavity wall of the housing mounting cavity 1-1). The barbs 2-5 cooperate with the grooves to limit the position of the terminal module.

[0077] When the number of terminals 3 is large, such as Figure 6 As shown, in the second-2nd specific embodiment, all terminals 3 are divided into two groups, namely the first group of terminals on the left and the second group of terminals on the right. In each group of terminals, all terminals 3 in the group are arranged in a row along the vertical direction. The cantilever-convex structure corresponding to the first group of terminals is located on the left side of the terminal mounting cavity 2-6, and the cantilever-convex structure corresponding to the second group of terminals is located on the right side of the terminal mounting cavity 2-6. The structure is compact and simple.

[0078] In the second and third specific embodiments, all terminals 3 are divided into three groups: the third group on the left, the fourth group on the right, and the fifth group in the middle. Within each group, all terminals 3 are arranged in a vertical column. The cantilever-protrusion structure corresponding to the third group is located on the left side of the terminal mounting cavity 2-6, the cantilever-protrusion structure corresponding to the fifth group is located on the right side of the terminal mounting cavity 2-6, and the fourth group has only two terminals, one upper and one lower. The cantilever-protrusion structure of the upper terminal 3 is located on the upper side of the terminal mounting cavity 2-6, and the cantilever-protrusion structure of the lower terminal 3 is located on the lower side of the terminal mounting cavity 2-6. Since the protrusion 2-3 needs to be in contact with other structures (including the cavity wall of the housing mounting cavity 1-1 and the housing 2 of other terminal modules), the cantilever-protrusion structure must be located on the outer circumferential surface of the housing 2. Therefore, the terminals 3 can only be arranged close to the four sides of the housing 2, and the central area of ​​the housing 2 cannot be used to install terminals 3, resulting in low space utilization.

[0079] It should be noted that in the second and third specific embodiments, only two steps are required to assemble the connector, making assembly convenient.

[0080] To further simplify the structure, the structure of the limiting part in this utility model is limited as follows:

[0081] In the specific embodiment of type 3-1, the limiting part is the front end face of the cantilever 2-4, which has a simple structure.

[0082] In the specific implementation of type 3-2, the limiting part is a convex hull 2-3, which has a simple structure.

[0083] In the third-third type of specific embodiment, the limiting part is a convex hull 2-3 and a cantilever 2-4.

[0084] Specific embodiments of the terminal module provided by this utility model:

[0085] The specific structure of the terminal module in this utility model is the same as that of the terminal module in the connector of this utility model, and will not be described again here.

[0086] Specific embodiments of the housing provided by this utility model:

[0087] The specific structure of the housing 2 in this utility model is the same as that of the housing 2 in the connector terminal module of this utility model, and will not be described again here.

[0088] It should be noted that the classification of specific embodiments in this utility model is based solely on specific features and does not imply that other categories do not contain this specific feature. For example, the structure of a Class 1 embodiment may be the same as that of a Class 2 or Class 3 embodiment.

[0089] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features, or organically combine different types of specific implementation methods to create appendices. Figures 1-25 The eight specific embodiments given are, of course, those skilled in the art can combine them to create other specific embodiments not shown in the accompanying drawings. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A terminal module, characterized in that, The connector includes a housing (2) and n terminals (3) installed within the housing (2), where n ≥ 1. At least a portion of the housing (2) is used to be installed in a housing mounting cavity (1-1) of the connector during use. The extension direction of the terminals (3) is defined as the front-rear direction. The housing (2) is provided with n terminal mounting cavities (2-6). Each terminal mounting cavity (2-6) has a terminal (3) installed in it. Each terminal (3) has an insertion portion (3-1) for inserting a pin during connector mating. Each terminal mounting cavity (2-6) is equipped with a cantilever-convex structure, which includes a cantilever-convex structure. The arm (2-4) and the protrusion (2-3) provided at the end of the cantilever (2-4) are used to press against the cavity wall of the housing mounting cavity (1-1) or other terminal modules during use, so that the cantilever (2-4) deforms and extends into the corresponding terminal mounting cavity (2-6). The front end of the cantilever (2-4) has a limiting part that is located behind the insertion part (3-1) before the cantilever (2-4) deforms and directly behind the insertion part (3-1) after the cantilever (2-4) deforms, so as to form a TPA structure for limiting the extreme position of the terminal (3) to move backward.

2. The terminal module as described in claim 1, characterized in that, All terminals (3) are arranged in a row along the vertical direction, and the cantilever (2-4) is located on the left, right or left and right sides of the terminal mounting cavity (2-6).

3. The terminal module as described in claim 1, characterized in that, All terminals (3) are divided into two groups, namely the first group of terminals on the left and the second group of terminals on the right. In each group of terminals, all terminals (3) are arranged in a row along the vertical direction. The cantilever-convex structure corresponding to the first group of terminals is located on the left side of the terminal mounting cavity (2-6), and the cantilever-convex structure corresponding to the second group of terminals is located on the right side of the terminal mounting cavity (2-6).

4. The terminal module as described in any one of claims 1 to 3, characterized in that, The terminal (3) is a signal terminal used for transmitting signals.

5. The terminal module as described in any one of claims 1 to 3, characterized in that, The limiting part is the front end face of the cantilever (2-4).

6. A connector, characterized in that, The device includes a plastic shell (1) and at least one terminal module. The plastic shell (1) has a shell mounting cavity (1-1). The terminal module is the terminal module described in any one of claims 1 to 5. When there is one terminal module, the protrusion (2-3) of the terminal module is in pressure contact with the cavity wall of the shell mounting cavity (1-1). When there are at least two terminal modules, each terminal module is arranged adjacent to each other in the terminal mounting cavity (2-6) in the left-right direction, and each protrusion (2-3) of each terminal module is in pressure contact with the shell (2) of other terminal modules or the cavity wall of the shell mounting cavity (1-1).

7. A housing, characterized in that, At least a portion of the housing (2) is used to be installed in the housing mounting cavity (1-1) of the connector during use. The housing (2) includes n terminal mounting cavities (2-6), where n ≥ 1. The extension direction of the terminal mounting cavities (2-6) is defined as the front-back direction. Each terminal mounting cavity (2-6) is used to install a terminal (3) for insertion of a pin in the front-back direction during use. Each terminal mounting cavity (2-6) is equipped with a cantilever-protrusion structure, which includes a cantilever (2-4) and a protrusion (2-3) located at the end of the cantilever (2-4). -3), the convex bulge (2-3) is used to press against the cavity wall of the housing mounting cavity (1-1) or other housing (2) during use, so that the cantilever (2-4) deforms and extends into the corresponding terminal mounting cavity (2-6). The front end of the cantilever (2-4) has a limiting part that is located behind the insertion part (3-1) of the terminal (3) before the cantilever (2-4) deforms and is located directly behind the insertion part (3-1) after the cantilever (2-4) deforms, so as to form a TPA structure for limiting the extreme position of the terminal (3) to move backward.

8. The housing as claimed in claim 7, characterized in that, All terminal mounting cavities (2-6) are arranged in a row along the vertical direction, and the cantilever (2-4) is located on the left, right or both sides of the terminal mounting cavity (2-6).

9. The housing as claimed in claim 7, characterized in that, All terminal mounting cavities (2-6) are divided into two groups, namely the first group of terminal mounting cavities located on the left and the second group of terminal mounting cavities located on the right. In each group of terminal mounting cavities, all terminal mounting cavities (2-6) are arranged in a row along the vertical direction. The cantilever-convex hull structure corresponding to the first group of terminal mounting cavities is located on the left side of the terminal mounting cavity (2-6), and the cantilever-convex hull structure corresponding to the second group of terminal mounting cavities is located on the right side of the terminal mounting cavity (2-6).

10. The housing as described in any one of claims 7 to 9, characterized in that, The limiting part is the front end face of the cantilever (2-4).

Images