Breakable wiring terminal

Abstract

The invention relates to the field of wiring terminals, and discloses a disconnectable wiring terminal which comprises an insulating shell composed of a first shell base body and a second shell base body which are connected in a mutually inserted mode, and a conductive assembly composed of at least one female pin and at least one corresponding male pin and matched with the insulating shell. The first shell base body and at least one first fixing piece base body inserted into the first shell base body form a female end terminal shell body used for fixing female pins one by one, and the second shell base body and at least one second fixing piece base body inserted into the second shell base body form a male end terminal shell body used for fixing male pins one by one. Insertion holes for the female needles or the male needles to be inserted one by one are formed in the single shell base body. The breaking function of the wiring terminal is realized through plugging, the operation is simple and convenient, the contact and grounding functions can be expanded, the use scene of the wiring terminal is enriched, the rapid assembly and low-cost redundancy design are convenient to carry out according to needs, the connection is reliable, and the maintenance is basically avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a terminal, in particular to a terminal housing structure. BACKGROUND

[0002] The terminal is a common connection device for electrical connection, and the conventional terminal structure includes a housing and a conductive part installed inside the housing for conductive connection.

[0003] In order to realize the breaking of the conductive part, the conventional terminal adopts the arrangement of the breaking plug to realize it, which does not change the existing conventional terminal conductive part structure setting, for example, a breaking terminal of CN220042381U, which realizes connection or breaking by plugging and unplugging the breaking plug, and its structure needs to increase the size of the terminal.

[0004] There is also a plug-in terminal in the prior art, for example, a plug-in terminal of CN221176820U. The plug-in terminal includes a male end and a female end. When the male end is inserted into the female end, the conductive parts of the two ends are conductively connected to each other. When the male end is separated from the female end, the conductive parts of the two ends are broken. This kind of terminal only needs to plug and unplug one side of the terminal when connecting or breaking, without the need to disconnect the connection between the wire and the terminal. However, due to the complex structure of the conductive part, the close contact between the conductive parts of the male end and the female end of this kind of terminal relies on the cooperation of the limiting part and the pressing part arranged in the plug-in part to make the plug-in structure abut, and the structure of the plug-in part is relatively complex. In addition, this kind of terminal does not consider the arrangement of the contact between the two adjacent groups of conductive parts and the grounding setting, etc. Therefore, the structure of this kind of plug-in terminal still needs to be further improved. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a breakable terminal to meet the diversified application scenarios.

[0006] The technical solution adopted by the present application to solve the technical problem is: a breakable terminal, including an insulating housing composed of a first housing base and a second housing base connected to each other, a conductive assembly adapted to the insulating housing composed of at least one female needle and at least one corresponding male needle, the first housing base and at least one first fixing base inserted into the first housing base to form a female terminal housing for fixing the female needles one by one, the second housing base and at least one second fixing base inserted into the second housing base to form a male terminal housing for fixing the male needles one by one, and a plug hole is arranged on the first housing base for inserting the female needles one by one, and a plug hole is arranged on the second housing base for inserting the male needles one by one.

[0007] Firstly, the terminal is a breakable shell structure, and the plug-in connection of the female terminal shell and the male terminal shell can be separated from each other, realizing the breakable function of the terminal. Secondly, the matched conductive part is a single male / female pin for plug-in connection, and the fixed part base cooperates with the shell base to form a fixed structure suitable for limiting and supporting the single pin body, which can prevent the contact between the male pin and the female pin from loosening. Compared with the conventional terminal for fixing the conductive part by screws, the terminal saves the tedious maintenance and maintenance work of tightening the screws regularly according to the safety regulations. In addition, the structure has another advantage: the first shell base and the first shell base are plug-in connected, the second shell base and the second fixed part base are also plug-in connected, and the female pin or the male pin as the conductive part is also plug-in connected with the corresponding shell base. In this way, the parts of the female assembly or the male assembly of the terminal are plug-in connected, so the terminal can be quickly assembled.

[0008] Further, the first shell base and the second shell base are self-locked by the buckle structure, the first shell base and the first fixed part base are interlocked by the buckle structure, and the second shell base and the second fixed part base are interlocked by the buckle structure. In this way, the single-sided (female or male) terminal shell can lock the position of the female pin or the male pin, and when the shell bases are self-locked, the plug-in connection between the male pin and the female pin is also locked. The corresponding female / male terminal shell can be assembled and installed in advance during idle time, and after the female pin or the male pin is connected with the cable, it can be inserted into the corresponding shell for connection. Especially when a certain redundancy is required in the terminal cabinet, the prior art directly installs more finished terminals than the current required number. The terminal with this structure can install only more terminal shells than the current required number according to the requirement, saving cost (avoiding the use of redundant metal conductive parts).

[0009] Specifically, the first shell base is integrally formed with a female shell stop step and a female pin elastic stop inside, and the female shell stop step cooperates with the female base protrusion integrally formed on one end of the first fixed part base to form an interlocking structure. The second shell base is integrally formed with a male shell stop step and a male pin elastic stop inside, and the male shell stop step cooperates with the male base protrusion integrally formed on one end of the second fixed part base to form an interlocking structure. At the same time, the first fixed part base and the female pin elastic stop form an insertion stop structure suitable for the female pin, and the second fixed part base and the male pin elastic stop form an insertion stop structure suitable for the male pin.

[0010] The above structure is locked when assembled, the fixed part base and the shell base are locked by the cooperation of the shell stop step and the corresponding base protrusion, forming the front and rear limit of the needle body axis, the needle body with the corresponding anti-retreat step is stably fixed in the insulating shell after insertion, the elastic stop connected with the shell base acting on the needle body has elasticity, allowing one-time insertion only, and cannot be pulled out in reverse unless the position of the elastic stop is changed using a tool, which ensures that the female needle and the male needle are reliably connected in conductive connection after the first shell base and the second shell base are inserted.

[0011] Further, the first shell base is provided with an unlocking button hole, and the second shell base is provided with a shell buckle, the side wall of the unlocking button hole is used as a shell stop matched with the shell buckle to form a self-locking buckle structure, and a unlocking button is slidingly matched in the unlocking button hole, one end of the unlocking button has a free stroke for ejecting the shell buckle to unlock. Originally, the unlocking button hole is arranged on the second shell base, and the shell buckle is arranged on the first shell base, but considering that the expandable function structure to be mentioned below is more suitable for being arranged on the male terminal shell structure, therefore, the self-locking buckle between the female terminal shell and the male terminal shell is arranged on the female terminal shell structure. The structure facilitates the breaking operation and can meet the needs of some application scenarios.

[0012] In order to realize the accurate positioning of the plug-in connection, a guide groove and a guide piece are arranged on the first shell base and the second shell base respectively, and the extension directions of the guide groove and the guide piece should be parallel to the plug-in direction between the first shell base and the second shell base. When the guide groove and the guide piece are matched, the female needle and the male needle, and the first shell base and the second shell base can be smoothly inserted into each other.

[0013] Further, the guide groove is a special-shaped groove with a groove bottom size greater than a groove opening size, for example, it can be a T-shaped groove or a dovetail groove, and the cross-sectional shape and size of the guide piece are matched with the guide groove to realize accurate guidance. According to the material performance of the shell, the appropriate tolerance matching relationship between the guide groove and the guide piece can be determined to ensure the coaxiality between the female needle and the male needle, and the guide groove and the guide piece can also be used as a self-locking structure between the male / female terminal shell.

[0014] Further, the second shell base or the first shell base is connected with an elastic leg for connecting with a terminal rail, which facilitates fixing a plurality of terminals of the same specification on the same terminal rail to form a terminal row. The terminal can also be fixed by arranging mounting holes on the second shell base or the first shell base without affecting the arrangement of the internal conductive piece.

[0015] Further, the first and second housing bases are respectively provided with identification strip clamping areas, and the identification strips can be conveniently clamped on the terminal housing as required.

[0016] The first or second fixing member base can be made one-to-one with the needle to be installed, or two or more needles to be installed can be inserted one by one into the same first or second fixing member base, but the needle cavity formed by the fixing member base after being placed into the housing is one-to-one with a single female or male needle.

[0017] When two or more wires need to be connected in a terminal, the first and second fixing member bases can each have at least two, and the inner walls of the first and second housing bases are provided with rib walls between the first and second fixing member bases. The rib wall structure can guide the insertion of the first and second fixing member bases and increase the strength of the first and second housing bases.

[0018] Further, a communication conductive member installation cavity is reserved between the second fixing member base and the first fixing member base in the insulating housing, and a communication conductive member for electrically connecting two or more male needles to each other is installed in the communication conductive member installation cavity. The communication conductive member installed in the installation cavity can realize the communication function. When there are two or more male needles in the same terminal, one end of the male needle can be arranged to communicate with each other. When necessary, a communication conductive member is installed in the communication conductive member installation cavity, and the communication conductive member is used to electrically connect two or more male needles to each other, realizing the functions of "one in and two out" or "one in and multiple out". That is, the current input end has only one interface and is connected to one female needle, but the current output end has two or more interfaces, one male needle is inserted into the female needle, and the remaining male needles are electrically connected to the male needle inserted into the female needle through the communication conductive member.

[0019] Specifically, the communication conductive member is provided with an inner communication hole matched with the male needle, and a single male needle is installed in the inner communication hole through a contact spring to be electrically connected to the communication conductive member.

[0020] In addition, a cross-communication hole communicating with the communication conductive member installation cavity can be formed in the insulating housing. When the cross-communication member is inserted into the housing of two or more side-by-side terminals through the cross-communication hole and is electrically connected to the communication conductive member, the function of cross-communication between adjacent terminals is realized.

[0021] Specifically, the communication conductive member is provided with an outer communication hole and is electrically connected to the cross-communication member through the outer communication hole. The cross-communication member is inserted through the cross-communication hole reserved in the insulating housing, and the cross-communication member and the cross-communication hole are electrically connected through a contact coil spring.

[0022] Further, in the insulating shell, a grounding conductive piece mounting cavity is reserved, and the grounding conductive piece is mounted in the mounting cavity in cooperation, so that the grounding function of the terminal is realized, the terminal without grounding does not need to be equipped with the corresponding grounding conductive piece, and the multiple terminals can share one grounding conductive piece through cooperation of the cross-connection function and the corresponding structure, so that the material of the conductive piece is saved.

[0023] The application has the advantages that the disconnecting function of the terminal is realized through plugging and unplugging, the operation is simple, the cross-connection and grounding functions can be expanded, the use scene of the terminal is enriched, the terminal can be quickly assembled and designed with low cost redundancy according to the needs, the connection is reliable, and the maintenance is basically unnecessary. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall schematic diagram of the disconnectable terminal of the application (separated state).

[0025] Figure 2 is the overall schematic diagram of the disconnectable terminal of the application (connected state).

[0026] Figure 3 is Figure 1 the perspective view of the female terminal shell.

[0027] Figure 4 is Figure 1 the exploded view of the female terminal shell and the corresponding local enlarged schematic view.

[0028] Figure 5 is the schematic diagram of inserting the female needle into Figure 1 the female terminal shell.

[0029] Figure 6 is the sectional view of the female terminal shell after the female needle is inserted.

[0030] Figure 7 is Figure 1 the perspective view of the male shell base body.

[0031] Figure 8 is Figure 1 the perspective view of the male shell base body from another view direction.

[0032] Figure 9 is Figure 1 the exploded view of the male terminal shell and the corresponding local enlarged schematic view.

[0033] Figure 10 is the schematic diagram of inserting the male needle into Figure 1 the male terminal shell.

[0034] Figure 11is a cross-sectional view of the male terminal housing after the male pin is installed.

[0035] Figure 12 is a schematic view of one female pin structure (crown spring).

[0036] Figure 13 is a schematic view of another female pin structure (closed spring).

[0037] Figure 14 is a schematic view of the female or male pin being able to be individually removed from the insulating housing.

[0038] Figure 15 is a schematic view of the disconnectable terminal with expandable tie-in functionality.

[0039] Figure 16 is Figure 15 a schematic view of the tie-in conductive member and the male pin connection.

[0040] Figure 17 is Figure 16 a schematic view of the tie-in conductive member and the contact clip connection.

[0041] Figure 18 is Figure 16 a schematic view of the contact clip.

[0042] Figure 19 is a schematic view of the disconnectable terminal with expandable tie-in and ground functionality.

[0043] Figure 20 is Figure 19 a schematic view of the tie-in conductive member and the ground conductive member connection.

[0044] Figure 21 is Figure 15 a schematic view of the structure continuing the tie-in functionality between the terminals.

[0045] Figure 22 is Figure 21 a schematic view of one of the terminals and the jumper tie-in member connection.

[0046] Figure 23 is Figure 22 a schematic view of the jumper tie-in member and the tie-in conductive member within the terminal connection.

[0047] Figure 24 is a schematic view of the jumper tie-in member construction.

[0048] The markings in the diagram are as follows: 1-Female pin, 2-Male pin, 3-First fixing component base, 4-Second fixing component base, 5-First outer shell base, 6-Second outer shell base, 7-Unlock button, 8-Elastic leg, 9-Identifier strip snap-fit ​​area, 10-Rib wall, 11-Anti-reverse step, 12-Cable crimping hole, 13-Contact area, 14-Crown spring, 15-Closing spring, 32-Female end base protrusion, 33-Female end pin body front stop step, 41-Base fixing hook, 42-Male end base protrusion, 43-Male end pin body front stop step, 44-Extension hook, 50-Female pin insertion hole, 51-Female pin elastic stop, 52-Female end outer shell anti-reverse step, 53-Guide groove, 57-Unlock button hole 60-Male pin insertion hole, 61-Male pin elastic stop, 62-Male end housing anti-reverse step, 63-Guide component, 65-Housing buckle, 70-Connecting conductive component, 71-Contact spring, 72-Inner connecting hole, 73-Outer connecting hole, 74-Connecting component fixing hook, 78-Grounding mounting slot, 79-Bridging connecting hole, 80-Grounding conductive component, 81-Guide rail slot, 90-Bridging connecting component, 91-Bridging conductive piece, 92-Conductive post, 93-Contact drum spring, 94-Insulating rubber coating component, 101-Female end assembly, 102-Male end assembly, 700-Connecting conductive component mounting cavity, 711-Reduced diameter spring, 800-Grounding conductive component mounting cavity, K-Pressure position. Detailed Implementation

[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0050] like Figures 1-2 As shown, the detachable terminal block of the present invention includes an insulating shell composed of a first outer shell base 5 and a second outer shell base 6 that are interlocked with each other; a conductive assembly adapted to the insulating shell is composed of at least one female pin 1 and at least one corresponding male pin 2; the first outer shell base 5 and at least one first fixing base 3 inserted into the first outer shell base 5 form a female terminal shell for fixing the female pins 1 one by one; the second outer shell base 6 and at least one second fixing base 4 inserted into the second outer shell base 6 form a male terminal shell for fixing the male pins 2 one by one; the first outer shell base 5 is provided with a socket for inserting the female pins 1 one by one, and the second outer shell base 6 is provided with a socket for inserting the male pins 2 one by one. The sockets include, for example,... Figure 5 The female needle insertion hole 50 shown and as shown Figure 10 The male needle insertion hole 60 shown, the rear ends of the needle bodies of both the female needle 1 and the male needle 2 are cable crimping holes 12, and the front end of the needle body of the female needle 1 is a hollow contact area 13 that mates with the front end of the needle body of the male needle.

[0051] A female pin 1 and a corresponding male pin 2 are installed in the insulating housing structure, forming an in-out terminal. According to the need, two groups of conductive components can be installed in the insulating housing, forming a two-in-two-out terminal. In this case, the two first fixing member bases 3 can be shaped and installed in the housing respectively, and the two first fixing member bases 3 can also be made into an integrated structure. The same applies to the second fixing member base 4. Obviously, more than three groups of conductive components can also be installed in the same terminal.

[0052] As shown in Figure 1 and Figure 2 , the first housing base 5 and the second housing base 6 are locked by a buckle structure, the first housing base 5 and the first fixing member base 3 are interlocked by a buckle structure, and the second housing base 6 and the second fixing member base 5 are interlocked by a buckle structure. That is, the female terminal housing and the male terminal housing can be separated, and the fixing member base will not be separated from the housing base after separation, forming a more reliable disconnectable terminal. Other structures or connection means can also be used to fix the fixing member base to the housing base, so that the male terminal housing and the female terminal housing can still fix the conductive components of the end when disconnected.

[0053] As shown in Figure 2 , the insulating housing can lock the axial position between the female pin 1 and the male pin 2. When the male pin 2 is inserted into the female pin 1, the axial position of the two can be locked by the insulating housing, avoiding the disconnection of the conductive components.

[0054] Referring to Figure 2 , Figure 4 and Figure 8 , the first housing base 5 is provided with an unlocking button hole 57, and the second housing base 6 is provided with a housing buckle 65. The side wall of the unlocking button hole 57 serves as a housing stop cooperating with the housing buckle 65, forming a buckle structure for self-locking of the male / female housing. An unlocking button 7 is slidingly fitted in the unlocking button hole 57, and one end of the unlocking button 7 has a free stroke for ejecting the housing buckle 65 to unlock. With this arrangement, the second housing base 6 can be separated from the first housing base 5 when the unlocking button 7 is pressed, realizing the quick disconnecting function of the terminal. For easy operation, the unlocking button hole 57 is arranged at the end of the terminal away from the fixed installation position, for example, the end away from the arrangement of the elastic leg.

[0055] As shown in Figure 1 , Figure 3 , Figure 8As shown, guide grooves 53 and guide members 63 are respectively provided on the first outer shell base 5 and the second outer shell base 6 to achieve a precise mating connection for the male / female end shells. It is recommended that the guide groove 53 be an irregularly shaped groove with a bottom dimension larger than the opening dimension. This ensures that when a suitable tolerance fit between the guide groove and the guide member is determined based on the shell material properties, the coaxiality between the female and male pins can be guaranteed. The guide groove 53 shown in the figure is a T-shaped groove, and its opening direction is perpendicular to the shell mating direction. It can also serve as a self-locking structure between the male / female end shells in different directions.

[0056] After the female terminal housing and the male terminal housing are separated, the interlocking buckle can be released using a tool, and the first fixing base 3 can be removed from the first outer shell base 5, or the second fixing base 4 can be removed from the second outer shell base 6, thereby facilitating the removal of the female pin 1 or the male pin 2 for maintenance or replacement of the conductive components.

[0057] like Figures 3-6 As shown, the female end of the terminal block has an anti-retraction step 11 on its needle body. At least one first fixing base 3 is inserted into the first outer shell base 5. The first outer shell base 5 has an integrally formed female end outer shell anti-retraction step 52 and a female needle elastic stop 51. The female end outer shell anti-retraction step 52 cooperates with the female end base protrusion 32 integrally formed on the outer side of one end of the first fixing base 3 to form a snap-lock structure. The first fixing base 3 and the female needle elastic stop 51 form an insertion anti-retraction structure adapted to the female needle 1 and cooperating with its anti-retraction step 11. Specifically, there are two first fixing bases 3, and a rib wall 10 is provided on the inner wall of the first outer shell base 5 between the two first fixing bases 3. The assembly of this part of the shell assembly is completed by inserting the two first fixing bases 3 into the first outer shell base 5.

[0058] like Figures 7-11As shown, the male terminal of the terminal is provided with a retreat prevention step 11 on the needle body of the male pin 2, the second housing base body 6 is integrally formed with a male terminal housing retreat prevention step 62 and a male pin elastic stop 61 inside, the second housing base body 6 is formed with a guide 63 outside, at least one second fixing member base body 4 is inserted into the second housing base body 6, the second housing base body 6 is integrally formed with a male terminal housing retreat prevention step 62 and a male pin elastic stop 61 inside, the male terminal housing retreat prevention step 62 cooperates with the male terminal base body protrusion 42 integrally formed on one end of the second fixing member base body 4 to form a buckle type interlocking structure, and the second fixing member base body 4 cooperates with the male pin elastic stop 61 to form an insertion retreat prevention structure suitable for the male pin 2 and cooperating with the retreat prevention step 11 thereof. Specifically, the second fixing member base body 4 has two, and a rib wall 10 between the two second fixing member base bodies 4 is arranged on the inner wall of the second housing base body 6. The assembly of the shell assembly is completed by inserting each second fixing member base body 4 into the second housing base body 6.

[0059] In this way, the corresponding terminal female / male shell assembly can be assembled and installed in advance during idle time for connection. Especially when a certain redundancy is required in the terminal cabinet, the prior art directly installs more finished terminals than the current required number, and the application can install only more terminal shell assemblies than the current required number according to the requirement, thereby saving cost because the cost of the metal conductor is higher than that of the plastic shell. After the female pin 1 and the male pin 2 are connected with the cable respectively, they are inserted into the corresponding shell assemblies respectively, and the wiring is completed.

[0060] In order to facilitate the close arrangement of the terminal in the form of terminal row, as shown in Figures 7-11 The elastic leg 8 for connecting with the terminal guide rail can be connected to the second housing base body 6. The elastic leg 8 can also be arranged on the first housing base body 5.

[0061] As shown in Figure 3 , Figure 4 , Figure 8 , Figure 9 and the like, in order to facilitate the differentiation of the respective conductive members of the terminal, the first housing base body 5 and the second housing base body 6 are respectively provided with an identification strip clamping area 9. The shape of the identification strip clamping area 9 can be the same as or different from the prior art, and generally adopts a dovetail groove form for identification on the terminal row. Since there are two groups of conductive members, it is recommended to use two different marks on a single identification strip to differentiate the two groups of conductive members.

[0062] Embodiment 1: As shown in Figures 1-12As shown, a disengageable terminal block includes the aforementioned terminal block body structure. The front end of the female pin 1 forms a hollow contact area 13 that mates with the front end of the male pin. A crown spring 14 is installed within the contact area 13 to ensure the conductive contact between the female pin 1 and the male pin 2. The female pin 1 and male pin 2 are made of copper, and the crown spring 14 is made of beryllium copper alloy.

[0063] Example 2: like Figures 1-11 and Figure 13 As shown, a detachable terminal block includes the terminal body structure described above. Unlike Embodiment 1, the front end of the female pin 1 is a hollow contact area 13 that mates with the front end of the male pin. The contact area 13 is a closed spring sheet 15 with uniformly grooved openings. The thickness of the spring sheet remains basically unchanged. The surface of the spring sheet is a curved surface that is approximately cylindrical. There are grooves between adjacent spring sheets that extend approximately along the axial direction of the pin body. From the base end of the spring sheet connected to the pin body to its free end, the radial dimension of the surface of the spring sheet to the axis of the pin body is uniformly reduced. The spring sheet is used to ensure the contact conductivity between the female pin 1 and the male pin 2. There are usually 2 to 4 spring sheets.

[0064] Example 3: like Figures 1-11 and Figure 14 As shown, a detachable terminal block includes the terminal body structure described above. However, unlike Embodiment 1, its main body structure does not have an unlocking button hole 57 and a corresponding unlocking structure on the insulating housing. Instead, an unlocking tool is used to press against an elastic stop on the pin body. For example, pressing against... Figure 14 The position of point K on the elastic stop of the female or male needle shown in the figure allows the elastic stop to disengage from the anti-reverse step of the female or male needle. By using the weight of the needle or pulling the wire connected to the needle body, the female or male needle can be disassembled, thereby completing the maintenance and replacement of the conductive components.

[0065] Example 4: like Figures 1-17 As shown, a disconnectable terminal block, based on the structure of Embodiment 1, has a connecting conductive element mounting cavity 700 reserved between the second fixing base 4 and the first fixing base 3 inside the insulating housing. The connecting conductive element mounting cavity 700 is equipped with a connecting conductive element 70 that electrically connects two male pins 2 to each other.

[0066] like Figure 15As shown, the contact conductor 70 is provided with a contact fixing hook 74, which is shaped as an inner groove in the middle of the contact conductor 70. Correspondingly, an extension hook 44 is provided on one of the second fixing member base bodies 4. The contact fixing hook 74 and the extension hook 44 are interlocked, and the contact conductor 70 is fixed by cooperation of the second housing base body 6 and the first fixing member base body 3.

[0067] As shown in Figure 15 and Figure 17 , the contact conductor 70 is provided with an inner contact hole 72 adapted to the male needle 2. The single male needle 2 is installed in the inner contact hole 72 by a contact spring 71 to be in conductive connection with the contact conductor 70. Figure 16 and Figure 17 , 18 As shown, one end of the contact spring 71 is composed of four pieces of reduced diameter spring sheets 711 with axial slits. The inner diameter of the free end of the spring sheet is smaller than the outer diameter of the corresponding matching part of the needle body of the male needle 2, so as to ensure conductive contact and connection between the contact spring 71 and the needle body of the male needle 2. The other end of the contact spring 71 is a circular ring in transition or interference fit with the inner contact hole 72, so as to ensure conductive contact and connection between the contact spring 71 and the contact conductor 70. The contact spring 71 is preferably made of beryllium copper alloy. The terminal has an expansion function of one-in and two-out. The contact conductor 70 is preferably made of copper material.

[0068] Example 5: As shown in Figure 19 , Figure 20 , a disconnectable terminal, based on the structure of example 4, a grounding conductor installation cavity 800 is reserved in the insulating housing, and the grounding conductor installation cavity 800 is in communication with the contact conductor installation cavity 700. A grounding conductor 80 with at least part of the surface exposed outside the insulating housing can be installed in the grounding conductor installation cavity 800, and the grounding conductor 80 is in conductive contact with the contact conductor 70. The terminal has an expansion function of grounding. The grounding conductor 80 can be designed to have a similar shape structure as the elastic leg, so as to facilitate unified grounding.

[0069] Example 6: As shown in Figures 21-24 , a disconnectable terminal, based on the structure of example 4, a cross contact hole 79 is provided on the insulating housing in communication with the contact conductor installation cavity 700.

[0070] The contact conductor 70 is provided with an outer contact hole 73 and is electrically connected with the cross contact 90 through the outer contact hole 73. The cross contact 90 is inserted into the cross contact hole 79 reserved on the insulating shell, and the cross contact 90 and the cross contact hole 79 are electrically connected through the contact coil spring 93. The terminal has the expansion function of the cross contact, and the several terminals connected by the cross contact 90 and the contact conductor 70 have equal potential through the electrically connected public pins.

[0071] As shown in Figure 24 The cross contact 90 includes a cross contact conductor 91, the cross contact conductor 91 is provided with a mounting hole for inserting the conductive column 92, the conductive column 92 is in interference fit with the mounting hole, and the end of the conductive column 92 for inserting the outer contact hole 73 of the contact conductor 70 is fixed with the contact coil spring 93. The conductive column 92 and the cross contact conductor 91 are wrapped by the insulating coating member 94 to be integrated, but the part where the contact coil spring 93 is located is exposed. The contact coil spring 93 is composed of several elastic sheets and has a gap in the shape of a waist drum. The maximum outer diameter is greater than the inner diameter of the outer contact hole 73, so that the cross contact 90 and the contact conductor 70 can be reliably connected after being inserted into the outer contact hole 73.

[0072] The cross contact conductor 91 and the conductive column 92 are recommended to be made of copper, the contact coil spring 93 is recommended to be made of beryllium copper alloy, and the cross contact 90 can be made into 2, 3, 5 or even 10 positions, that is, it can be used to connect two, three, five or even ten adjacent parallel terminals of the same specification. Figure 23 and 24 The cross contact 90 shown in the and is four positions.

Claims

1. A detachable terminal block, comprising an insulating housing consisting of a first housing base (5) and a second housing base (6) that are interlocked with each other, characterized in that: A conductive assembly adapted to the insulating housing is composed of at least one female needle (1) and at least one corresponding male needle (2). The first housing base (5) and at least one first fixing base (3) inserted into the first housing base (5) form a female terminal housing for fixing the female needles (1) one by one. The second housing base (6) and at least one second fixing base (4) inserted into the second housing base (6) form a male terminal housing for fixing the male needles (2) one by one. The first housing base (5) is provided with a socket for inserting the female needles (1) one by one, and the second housing base (6) is provided with a socket for inserting the male needles (2) one by one.

2. The disconnectable terminal block as described in claim 1, characterized in that: The first outer shell base (5) and the second outer shell base (6) are self-locked by a snap-fit ​​structure, the first outer shell base (5) and the first fixing base (3) are interlocked by a snap-fit ​​structure, and the second outer shell base (6) and the second fixing base (5) are interlocked by a snap-fit ​​structure.

3. The disposable terminal block as described in claim 2, characterized in that: The first outer shell base (5) has an integrally formed female end outer shell anti-retraction step (52) and female needle elastic stop (51). The female end outer shell anti-retraction step (52) cooperates with the female end base protrusion (32) integrally formed on the outer side of one end of the first fixing base (3) to form an interlocking structure. The second outer shell base (6) has an integrally formed male end outer shell anti-retraction step (62) and male needle elastic stop (61). The male end outer shell anti-retraction step (62) cooperates with the male end base protrusion (42) integrally formed on the outer side of one end of the second fixing base (4) to form an interlocking structure. At the same time, the first fixing base (3) and the female needle elastic stop (51) form an insertion anti-retraction structure adapted to the female needle (1). The second fixing base (4) and the male needle elastic stop (61) form an insertion anti-retraction structure adapted to the male needle (2).

4. The disconnectable terminal block as described in claim 2, characterized in that: The first outer shell base (5) is provided with an unlock button hole (57), and the second outer shell base (6) is provided with an outer shell buckle (65). The side wall of the unlock button hole (57) serves as an outer shell stop that cooperates with the outer shell buckle (65), forming the self-locking buckle structure. An unlock button (7) is slidably fitted in the unlock button hole (57), and one end of the unlock button (7) has a free stroke to push out the outer shell buckle (65) to unlock.

5. The disengageable terminal block as described in claim 1, 2, 3 or 4, characterized in that: Guide grooves (53) and guide members (63) that interlock are provided on the first outer shell base (5) and the second outer shell base (6), respectively.

6. The disposable terminal block as described in claim 5, characterized in that: The guide groove (53) is an irregularly shaped groove with a bottom dimension larger than the opening dimension.

7. The disengageable terminal block as described in claim 1, 2, 3 or 4, characterized in that: The second housing base (6) or the first housing base (5) is connected to an elastic leg (8) for connection with a terminal rail.

8. The disengageable terminal block as described in claim 1, 2, 3 or 4, characterized in that: The first outer shell base (5) and the second outer shell base (6) are respectively provided with identification strip snap-fit ​​areas (9).

9. The disengageable terminal block as described in claim 1, 2, 3 or 4, characterized in that: There are at least two of the first fastener base (3) and the second fastener base (4), and ribs (10) located between the first fastener base (3) or the second fastener base (4) are provided on the inner walls of the first outer shell base (5) and the second outer shell base (6).

10. The disengageable terminal block as described in claim 1, 2, 3 or 4, characterized in that: in Inside the insulating housing, a connecting conductive component mounting cavity (700) is reserved between the second fixing component base (4) and the first fixing component base (3). A connecting conductive component (70) that electrically connects two or more male pins (2) to each other is installed in the connecting conductive component mounting cavity (700).

11. The disposable terminal block as described in claim 10, characterized in that: The communication conductive element (70) is provided with an inner communication hole (72) adapted to the male pin (2). A single male pin (2) is installed in the inner communication hole (72) through a contact spring (71) and is electrically connected to the communication conductive element (70).

12. The disposable terminal block as claimed in claim 10, characterized in that: [The following text appears to be incomplete and requires further context: "in..."] The insulating housing has a bridging connection hole (79) that communicates with the connecting conductive component mounting cavity (700).

13. The terminal block as described in claim 12, characterized in that: The connecting conductive element (70) is provided with an external connecting hole (73) and is electrically connected to the bridging connecting element (90) through the external connecting hole (73). The bridging connecting element (90) is inserted through the bridging connecting hole (79) reserved on the insulating shell. The bridging connecting element (90) and the bridging connecting hole (79) are electrically connected through a contact drum spring (93).

14. The disposable terminal block as described in claim 10, characterized in that: in The insulating housing also has a reserved grounding conductive component mounting cavity (800), and the grounding conductive component mounting cavity (800) is connected to the connecting conductive component mounting cavity (700).

15. The disposable terminal block as described in claim 14, characterized in that: The grounding conductive element (80) with at least a portion of its surface exposed outside the insulating shell is installed in the grounding conductive element mounting cavity (800), and the grounding conductive element (80) is in conductive contact with the connecting conductive element (70).

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