A wiring terminal block for electrical installation

Abstract

The application relates to the field of electrical installation accessories, in particular to a wiring terminal block for electrical installation, which comprises a seat body, a terminal assembly and a cover body, the cover body and the seat body are detachably connected, a containing cavity is formed between the cover body and the seat body, a clamping mechanism is arranged on one side of the seat body facing the containing cavity, the terminal assembly is clamped and fixed in the containing cavity through the clamping mechanism, an opening is formed on the surface of the cover body, the opening is communicated with terminal holes of the terminal assembly, a transmission assembly is arranged on the cover body, the transmission assembly is matched with the terminal assembly to control the opening or closing of the terminal holes. The wiring terminal block is arranged in a structure composed of the seat body, the cover body and the terminal assembly, the seat body and the cover body are detachably connected, the clamping mechanism is arranged on the seat body, and the terminal assembly is clamped and fixed on the seat body through the clamping mechanism, so that the dismounting and mounting of the terminal assembly are facilitated.

Description

Technical Field

[0001] This application relates to the technical field of electrical installation accessories, and in particular to a terminal block for electrical installation. Background Technology

[0002] In the assembly process of electrical equipment and electronic devices, terminal blocks, as key components for realizing electrical connections between wires and electronic components, and between wires themselves, are widely used in many fields such as industrial control, home appliances, and automotive electronics.

[0003] Currently, most terminal blocks on the market adopt a one-piece molded housing structure, with the terminals directly fixed in pre-set slots within the housing cavity. While this structure can ensure the structural strength of the terminal block to a certain extent, it has significant drawbacks in the installation and replacement of terminals.

[0004] To address these issues, related technologies attempt to design terminal blocks as detachable structures, typically using a snap-fit ​​design between upper and lower housings. However, the problem with these technologies is that the terminals are mostly still fixed to a single component of the upper or lower housing via interference fit or adhesive bonding, failing to achieve independent, detachable connection of the terminals. Utility Model Content

[0005] To facilitate the easy installation and removal of terminals, this application provides a terminal block for electrical installation.

[0006] The electrical installation terminal block provided in this application adopts the following technical solution:

[0007] An electrical installation terminal block includes a base, a terminal assembly, and a cover. The cover and the base are detachably connected, and a receiving cavity is formed between the cover and the base. A locking mechanism is provided on the side of the base facing the receiving cavity. The terminal assembly is locked and fixed in the receiving cavity by the locking mechanism. An opening is formed on the surface of the cover, which communicates with the terminal hole of the terminal assembly. A transmission component is provided on the cover, which cooperates with the terminal assembly to control the opening or closing of the terminal hole.

[0008] Optionally, the terminal assembly includes a housing, an elastic conductive part, and a pressing part. The elastic conductive part is disposed inside the housing and abuts against each other. The pressing part is movably mounted on the housing and abuts against the elastic conductive part. The elastic conductive part can be deformed by the movable pressing part to form a terminal hole between the conductive part and the housing.

[0009] Optionally, the housing includes a first part and a second part, which are detachably connected. The pressing part is disposed on the first part, and the elastic conductive part is disposed on the second part. A connection structure is provided between the second part and the elastic conductive part.

[0010] Optionally, the connection structure includes a mounting base integrally formed on the second part, a connection hole correspondingly opened in the middle of the elastic conductive part, a connector passing through the connection hole, and the connector being threadedly connected to the mounting base.

[0011] Optionally, the pressing part has a pressing end and a transmission end, and the housing has a movable groove. The transmission end of the pressing part passes through the movable groove and abuts against the elastic conductive part, while the pressing end is located above the housing and cooperates with the transmission assembly.

[0012] Optionally, the transmission assembly includes a pressure rod and a reset elastic element. The surface of the cover has an inwardly recessed insertion hole. The pressure rod passes through the insertion hole and extends toward the terminal assembly. The reset elastic element is sleeved on the outside of the pressure rod. One end of the reset elastic element is connected to the cover, and the other end is connected to the pressure rod.

[0013] Optionally, the locking mechanism includes an external locking assembly, which is provided in multiple sets and evenly distributed on both sides of the terminal assembly. Each locking assembly includes a locking member and a spring. The locking member is slidably mounted on the side of the base facing the receiving cavity. The spring is mounted on the base and connected to the locking member. The deformation direction of the spring is parallel to the sliding direction of the locking member.

[0014] Optionally, the mounting mechanism further includes an internal snap-fit ​​component, with an installation groove reserved in the middle of the base. The internal snap-fit ​​component includes a buckle fixed in the installation groove, and a corresponding slot is provided on the side of the terminal component that contacts the base. The buckle cooperates with the slot.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. By setting the terminal block socket as a structure consisting of three parts: a base, a cover, and a terminal assembly, wherein the base and the cover are detachably connected, and a snap-fit ​​mechanism is provided on the base, the terminal assembly is snapped and fixed on the base by the snap-fit ​​mechanism, so as to facilitate the assembly and disassembly of the terminal assembly;

[0017] 2. By configuring the terminal housing as consisting of a first part and a second part, and fixing the elastic conductive sheet to the second part via a connecting structure, the elastic conductive part can be detachably connected with the cooperation of the mounting base and the connector, thereby facilitating the individual disassembly and replacement of the elastic conductive part and reducing maintenance costs. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of an embodiment of this application.

[0019] Figure 2 This is a side view cross-sectional structural diagram of an embodiment of this application.

[0020] Figure 3 This is a top cross-sectional structural diagram of an embodiment of this application.

[0021] Figure 4 This is an embodiment of the present application. Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] Reference numerals: 1. Base; 2. Terminal assembly; 21. Housing; 211. First part; 212. Second part; 22. Elastic conductive part; 23. Pressing part; 231. Pressing end; 232. Transmission end; 24. Connecting structure; 241. Mounting base; 242. Connector; 3. Cover; 4. Transmission assembly; 41. Pressure rod; 42. Reset elastic element; 5. External snap-fit ​​assembly; 51. Snap-fit ​​element; 52. Spring; 6. Internal snap-fit ​​assembly; 61. Buckle. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a terminal block for electrical installation. (Refer to...) Figure 1 An electrical installation terminal block includes a base 1, a terminal assembly 2, and a cover 3. These three components are detachably connected and fitted together by a locking mechanism to form a complete assembly, enabling stable wire connection and convenient maintenance. The terminal serves as the upper protective and operating component of the terminal block and is detachably connected to the base 1 (e.g., a snap-fit ​​connection, determined according to the actual application scenario). When the terminal and base 1 are assembled, they form a receiving cavity. The size of this cavity is larger than the external dimensions of the terminal assembly 2, providing installation space and protection for the terminal assembly 2. Depending on the wiring method of the terminal assembly 2 (single-sided wiring / double-sided wiring), an opening is formed on the corresponding side of the cover 3 to allow cables to pass through.

[0025] Furthermore, a transmission component 4 for controlling the terminal hole switch of the terminal assembly 2 is also mounted on the cover 3. The transmission component 4 extends into the receiving cavity along the thickness direction of the cover 3 and directly cooperates with the terminal assembly 2. The structural deformation of the terminal assembly 2 can be driven by external operation, thereby realizing the opening and closing of the terminal hole. The insertion and removal of wires can be completed without disassembling the cover 3.

[0026] Reference Figure 2As the core internal component for realizing electrical connection, the terminal assembly 2 consists of a housing 21, an elastic conductive part 22, and a pressing part 23. The terminal serves as the structural framework of the terminal assembly 2 and is divided into a first part 211 and a second part 212. The two parts are connected in a detachable manner (such as plug-in connection, screw connection, etc.) to facilitate the installation and maintenance of the elastic conductive part 22. The pressing part 23 is integrated on the first part 211 of the housing 21 and has a pressing end 231 located above the housing 21 and a transmission end 232 extending into the inner cavity of the housing 21. The first part 211 of the housing 21 has a through movable groove corresponding to the transmission end 232 of the pressing part 23. The size of the movable groove is adapted to the movement stroke of the pressing part 23. The transmission end 232 of the pressing part 23 passes through the movable groove and extends into the inner cavity of the housing 21, directly abutting against the elastic conductive part 22 located inside the housing 21. The pressing end 231 of the pressing part 23 is exposed above the housing 21 and corresponds to the transmission assembly 4 on the cover 3.

[0027] The elastic conductive part 22 is installed on the second part 212 of the housing 21. In its natural state, the end of the elastic conductive part 22 abuts against the inner wall of the housing 21 and the transmission end 232 of the pressing part 23 respectively. At this time, the terminal hole is closed. When the pressing part 23 is subjected to an external force in a certain direction, the external force is transmitted to the elastic conductive part 22 through the transmission end 232, causing the end of the elastic conductive part 22 to deform and separate from the inner wall of the housing 21. At this time, the terminal hole is opened.

[0028] To ensure the connection stability between the elastic conductive part 22 and the second part 212 of the housing 21, a connection structure 24 is provided between them. This connection structure 24 includes a mounting base 241 integrally formed on the inner wall of the second part 212. The surface of the mounting base 241 has external threads. A through-hole is provided in the central region of the elastic conductive part 22 corresponding to the position of the mounting base 241. A connector 242 is inserted into the connection hole and threadedly connected to the mounting base 241. This connection structure 24 also facilitates the individual disassembly and replacement of the elastic conductive part 22, reducing maintenance costs.

[0029] Reference Figure 2The transmission assembly 4 consists of a pressure rod 41 and a reset elastic element 42. The cover 3 has an inwardly recessed insertion hole corresponding to the installation position of the transmission assembly 4. The diameter of the insertion hole matches the outer diameter of the pressure rod 41. One end of the pressure rod 41 passes through the insertion hole from the outside of the cover 3 and extends towards the terminal assembly 2 inside the cavity. Its extension length is based on being able to release from the operating part (pressing end 231) of the terminal assembly 2. The reset elastic element 42 is a cylindrical helical spring, which is sleeved on the outside of the pressure rod 41. One end of the reset elastic element 42 is fixedly connected to the inner wall of the insertion hole of the cover 3 or the inner surface of the cover 3, and the other end is fixedly connected to the protruding structure (such as an annular shoulder) of the pressure rod 41. The deformation direction of the reset elastic element 42 is parallel to the sliding direction of the pressure rod 41.

[0030] When the operator applies downward pressure to the lever 41, the lever 41 slides along the insertion hole into the receiving cavity, while compressing the reset elastic element 42, thereby pushing the pressing end 231 of the terminal assembly 2 to open the terminal hole. When the operator releases the lever 41, the reset elastic element 42 will push the lever 41 upward under its own elastic restoring force. At this time, the elastic conductive part 22 of the terminal assembly 2 will also reset, causing the terminal hole to close again, thereby realizing the switching of the terminal hole opening and closing state and improving the convenience of operation.

[0031] Reference Figure 2 and Figure 4 The clamping mechanism for fixing the terminal assembly 2 includes an outer clamping component 5 and an inner clamping component 6. The two cooperate to form a dual positioning, ensuring the installation stability of the terminal assembly 2 within the receiving cavity of the base 1. The outer clamping component 5 is provided in multiple sets (e.g., 2 sets, 4 sets, etc., the specific number can be adjusted according to the length of the terminal assembly 2), and each set of outer clamping components 5 is evenly distributed on both sides of the terminal assembly 2 along its length. Each set of outer clamping components 5 consists of a clamping element 51 and a spring 52. The clamping element 51 adopts a slider structure, which is slidably installed on the side of the base 1 facing the receiving cavity via a slide rail or slide groove, and can slide in a direction close to or away from the terminal assembly 2. The spring 52 is horizontally installed in a pre-set spring groove on the base 1. One end of the spring 52 is fixedly connected to the inner wall of the spring groove of the base 1, and the other end is fixedly connected to the end of the clamping element 51. The deformation direction of the spring 52 is parallel to the sliding direction of the clamping element 51.

[0032] When the terminal assembly 2 is placed into the receiving cavity, the two sides of the terminal assembly 2 will squeeze the snap-fit ​​member 51, pushing the snap-fit ​​member 51 to slide away from the terminal assembly 2 and causing the tension spring 52 to move. When the terminal assembly 2 is fully in place, the spring 52 will push the snap-fit ​​member 51 to reset, so that the inner side of the snap-fit ​​member 51 is in close contact with the outer wall of the terminal, forming a lateral clamping force.

[0033] The inner snap-fit ​​component 6 is designed to work in conjunction with the mounting groove located in the middle of the base 1. Its core component is a snap-fit ​​61 (made of elastic plastic with a certain degree of deformation capability) fixed within the mounting groove. A slot is provided on the side of the terminal assembly 2 that contacts the base 1, corresponding to the position of the snap-fit ​​61. The shape and size of this slot perfectly match the shape of the snap-fit ​​61. When the terminal assembly 2 is installed downwards, the snap-fit ​​61 elastically deforms due to the pressure of the terminal assembly 2. After the terminal assembly 2 is in place, the snap-fit ​​61 returns to its original shape and snaps into the slot, forming a longitudinal positioning. Together with the outer snap-fit ​​component 5, this achieves a secure fixation of the terminal assembly 2 and facilitates its disassembly. Disassembly simply requires applying an upward force to the terminal assembly 2 to disengage the snap-fit ​​61 from the slot, allowing the terminal assembly 2 to be removed from the receiving cavity without damaging any structure.

[0034] The implementation principle of an electrical installation terminal block according to an embodiment of this application is as follows: When a wire connection operation is required, the operator only needs to press down the pressure rod 41 on the cover 3. The pressure rod 41 will push the pressing end 231 of the pressing part 23, causing the transmission end 232 of the pressing part 23 to squeeze the elastic conductive part 22, forcing the elastic conductive part 22 to deform and separate it from the housing 21. This forms a terminal hole between the elastic conductive part 22 and the inner wall of the housing 21, allowing the wire to be inserted. At this time, the operator can insert the wire through the opening of the cover 3 into the terminal hole. Then, the pressure rod 41 is released, and the reset elastic member 42 pushes the pressure rod 41 to reset. The pressing force of the pressing part 23 on the elastic conductive part 22 disappears, and the elastic conductive part 22 resets under its own elastic restoring force. Its two ends re-abut and clamp the wire, realizing a stable electrical connection of the wire.

[0035] If the wire needs to be removed, simply press the lever 41 repeatedly to reopen the terminal hole, and then pull the wire out from the opening. The entire operation does not require disassembling the base 1 and the cover 3, thus improving wiring efficiency.

[0036] When the terminal assembly 2 malfunctions and requires maintenance, simply remove the cover 3, pull the terminal assembly 2 upwards to disengage the buckle 61 from the slot, and the terminal assembly 2 can be removed from the receiving cavity of the base 1. If further repair of the elastic conductive part 22 is required, the first part 211 and the second part 212 of the housing 21 can be separated to disassemble the elastic conductive part 22 separately, which effectively improves the convenience of maintenance and the reusability of parts.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A terminal block for electrical installation, characterized in that: The device includes a base, a terminal assembly, and a cover. The cover and the base are detachably connected, and a receiving cavity is formed between the cover and the base. A locking mechanism is provided on the side of the base facing the receiving cavity. The terminal assembly is locked and fixed in the receiving cavity by the locking mechanism. An opening is formed on the surface of the cover, which communicates with the terminal hole of the terminal assembly. A transmission component is provided on the cover, which cooperates with the terminal assembly to control the opening or closing of the terminal hole.

2. The electrical installation terminal block according to claim 1, characterized in that: The terminal assembly includes a housing, an elastic conductive part, and a pressing part. The elastic conductive part is disposed inside the housing and abuts against each other. The pressing part is movably mounted on the housing and abuts against the elastic conductive part. The elastic conductive part can be deformed by the movable pressing part to form a terminal hole between the conductive part and the housing.

3. The electrical installation terminal block according to claim 2, characterized in that: The housing includes a first part and a second part, which are detachably connected. The pressing part is disposed on the first part, and the elastic conductive part is disposed on the second part. A connection structure is provided between the second part and the elastic conductive part.

4. The electrical installation terminal block according to claim 3, characterized in that: The connection structure includes a mounting base integrally formed on the second part, and a connection hole is correspondingly opened in the middle of the elastic conductive part. A connector is inserted into the connection hole, and the connector is threadedly connected to the mounting base.

5. The electrical installation terminal block according to claim 2, characterized in that: The pressing part has a pressing end and a transmission end. The housing has a movable groove. The transmission end of the pressing part passes through the movable groove and abuts against the elastic conductive part. The pressing end is located above the housing and cooperates with the transmission assembly.

6. The electrical installation terminal block according to claim 1, characterized in that: The transmission assembly includes a pressure rod and a reset elastic element. The surface of the cover has an inwardly recessed insertion hole. The pressure rod passes through the insertion hole and extends toward the terminal assembly. The reset elastic element is sleeved on the outside of the pressure rod. One end of the reset elastic element is connected to the cover, and the other end is connected to the pressure rod.

7. The electrical installation terminal block according to claim 1, characterized in that: The locking mechanism includes an external locking assembly, which is provided in multiple sets and evenly distributed on both sides of the terminal assembly. Each locking assembly includes a locking member and a spring. The locking member is slidably installed on the side of the base facing the receiving cavity. The spring is installed on the base and connected to the locking member. The deformation direction of the spring is parallel to the sliding direction of the locking member.

8. The electrical installation terminal block according to claim 1, characterized in that: The mounting mechanism also includes an inner snap-fit ​​component. An installation groove is reserved in the middle of the base. The inner snap-fit ​​component includes a buckle fixed in the installation groove. A corresponding slot is opened on the side of the terminal component that contacts the base. The buckle cooperates with the slot.

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