Three-incoming-wire wiring terminal with novel structure
By designing a three-input terminal block with an angled layout and an independently controlled handle structure, the problems of loose wires and inconvenience in use of existing terminal blocks are solved, achieving stable three-input connection and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANLI ELECTRICAL MACHINERY (NINGBO) CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-17
AI Technical Summary
Terminal blocks on the market are generally of the dual-input type, and the wires cannot be removed independently, which can lead to loosening, poor contact, and inconvenience in use.
A novel three-input terminal block is designed, comprising a housing, current-carrying terminals, and a cover plate. The current-carrying terminals are equipped with first, second, and third spring contacts, allowing individual wire connections. The housing is provided with an inclined surface and insertion holes, and a handle independently controls each wire, ensuring oblique wire entry and stable connection.
It achieves a three-in-line layout in a small space, with stable wire connection, convenient individual connection, and improved ease of use and connection stability.
Smart Images
Figure CN224138369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of terminal blocks, and in particular to a novel three-input terminal block. Background Technology
[0002] Terminal blocks on the market are generally of the dual-inlet type, and the wires cannot be removed for independent use. When the handle is pressed, both wires are in a loose state, which may lead to poor contact due to loose wires. Moreover, when the handle needs to be pressed, it is very inconvenient to use because the pressing groove is between the two wires. Utility Model Content
[0003] To address the shortcomings and defects of existing technologies, a novel three-input terminal block is provided. To achieve the goal of implementing a three-input layout in a smaller space, this utility model provides the following technical solution.
[0004] A novel three-input terminal block includes a housing, a current-carrying terminal, and a cover plate. The current-carrying terminal is fixedly disposed in the inner cavity between the housing and the cover plate. The current-carrying terminal includes a top plate, a first support plate, a second support plate, and a bottom plate. A first connecting plate is integrally disposed between the top plate and the first support plate, a second connecting plate is integrally disposed between the first support plate and the second support plate, and a third connecting plate is integrally disposed between the second support plate and the bottom plate. The first connecting plate and the third connecting plate are disposed on the side away from the cover plate, and the second connecting plate is disposed on the side closer to the cover plate. A first spring is fixed to the upper end of the first support plate, a second spring is fixed to the upper end of the second support plate, and a third spring is fixed to the upper end of the bottom plate.
[0005] Compared with the prior art, the terminal block of this utility model has a first spring, a second spring, and a third spring inside the current-carrying terminal, which can realize a three-input layout in a small volume, and the wires can be connected individually. The structural layout is more reasonable; and the product is smaller in size, so it can be used in smaller products.
[0006] Furthermore, the lower end face of the bottom plate is attached to the inner wall of the housing, and the top plate, the first support plate and the second support plate are arranged in parallel within the housing, with an inclination angle between the second support plate and the bottom plate.
[0007] With the above improvements, the lower end face of the base plate fits into the inner wall of the housing, allowing the current-carrying terminal to be placed well inside the housing. The top plate, the first support plate, and the second support plate are arranged in parallel inside the housing, and an angle is set between the second support plate and the base plate, so that the current-carrying terminal is set at an angle, making the wires enter at an angle when connected, which facilitates wiring.
[0008] Furthermore, the housing is provided with an inclined surface, on which a first insertion hole, a second insertion hole, and a third insertion hole are respectively provided. A first insertion cavity is formed between the top plate and the first support plate, and the first insertion hole is correspondingly provided with the first insertion cavity. A second insertion cavity is formed between the first support plate and the second support plate, and the second insertion hole is correspondingly provided with the second insertion cavity. A third insertion cavity is formed between the second support plate and the bottom plate, and the third insertion hole is correspondingly provided with the third insertion cavity.
[0009] Through the above improvements, the housing is provided with an inclined surface, on which a first insertion hole, a second insertion hole, and a third insertion hole are respectively provided. The inclined surface and the first, second, and third insertion holes on the inclined surface can further ensure that the wires are inserted at an angle. A first insertion cavity is formed between the top plate and the first support plate, a second insertion cavity is formed between the first support plate and the second support plate, and a third insertion cavity is formed between the second support plate and the bottom plate. The first, second, and third insertion cavities can be used to connect wires independently without affecting the layout of other wires.
[0010] Furthermore, the first spring includes a first elastic part and a first fixing part. The lower end face of the first fixing part abuts against the upper end face of the first support plate. The first support plate is provided with a first positioning protrusion, and the first fixing part is provided with a first positioning hole. The first positioning protrusion and the first positioning hole are engaged, and the first elastic part is inclined to correspond to the first insertion hole. The second spring includes a second elastic part and a second fixing part. The lower end face of the second fixing part abuts against the upper end face of the second support plate. The second support plate is provided with a second positioning protrusion, and the second fixing part is provided with a second positioning hole. The second positioning protrusion and the second positioning hole are engaged, and the second elastic part is inclined to correspond to the second insertion hole. The third spring includes a third elastic part and a third fixing part. The lower end face of the third fixing part abuts against the upper end face of the base plate. The base plate is provided with a third positioning protrusion, and the third fixing part is provided with a third positioning hole. The third positioning protrusion and the third positioning hole are engaged, and the third elastic part is inclined to correspond to the third insertion hole. The first, second, and third springs are arranged in a stepped manner.
[0011] Through the above improvements, the first fixing part of the first spring abuts against the upper end face of the first support plate, and the first positioning protrusion on the first support plate cooperates with the first positioning hole on the first fixing part, so that the first spring can be better fixed on the first support plate; the second fixing part of the second spring abuts against the upper end face of the second support plate, and the second positioning protrusion on the second support plate cooperates with the second positioning hole on the second fixing part, so that the second spring can be better fixed on the second support plate; the third fixing part of the third spring abuts against the upper end face of the base plate, and the third positioning protrusion on the base plate cooperates with the third positioning hole of the third fixing part, so that the third spring can be better fixed on the base plate, thus improving the stability of the connection.
[0012] Furthermore, the housing is provided with a handle, which includes a first handle, a second handle, and a third handle that are independently configured. The upper end of the first elastic part abuts against the lower end surface of the top plate, and the first elastic part has a first pressing part on the side away from the first connecting plate. The lower end of the first handle abuts against the first pressing part. The upper end of the second elastic part abuts against the lower end surface of the first support plate, and the second elastic part has a second pressing part on the side near the second connecting plate. The lower end of the second handle abuts against the second pressing part. The upper end of the third elastic part abuts against the lower end surface of the second support plate, and the third elastic part has a third pressing part on the side away from the third connecting plate. The lower end of the third handle abuts against the third pressing part.
[0013] Through the above improvements, the housing is equipped with a handle, which includes an independently set first handle, second handle, and third handle. Each wire has a separate handle for control, allowing for individual wire connection and disconnection. The upper end of the first elastic part of the first spring abuts against the lower end face of the top plate, the second elastic part of the second spring abuts against the lower end face of the first support plate, and the third elastic part of the third spring abuts against the lower end face of the second support plate, effectively clamping the wire and facilitating direct wire insertion. A first pressing part is provided on the first elastic part, and the lower end of the first handle abuts against the first pressing part, allowing control of the first insertion cavity by pressing the first handle. A second pressing part is provided on the second elastic part, and the lower end of the second handle abuts against the second pressing part, allowing control of the second insertion cavity by pressing the second handle. A third pressing part is provided on the third elastic part, and the lower end of the third handle abuts against the third pressing part, allowing control of the third insertion cavity by pressing the third handle.
[0014] Furthermore, the housing extends toward the cover plate to form a first guide post, a second guide post, and a third guide post. The first guide post is fitted at the connection between the first elastic part and the first fixed part, the second guide post is fitted at the connection between the second elastic part and the second fixed part, and the third guide post is fitted at the connection between the third elastic part and the third fixed part.
[0015] Through the above improvements, the first guide post is set at the connection between the first elastic part and the first fixed part, the second guide post is set at the connection between the second elastic part and the second fixed part, and the third guide post is set at the connection between the third elastic part and the third fixed part, which can play a positioning and guiding role.
[0016] Furthermore, the current-carrying terminal is provided with a clamp on the side away from the first spring piece, and a connecting part is provided between the clamp and the first support plate.
[0017] With the above improvements, the current-carrying terminal is provided with a clamp on the side away from the first spring plate. The clamp can be used with the external terminal to achieve internal and external communication.
[0018] Furthermore, the top plate extends in a direction away from the first support plate and has a positioning part, and the housing is provided with a positioning groove, and the positioning part is engaged in the positioning groove.
[0019] With the above improvements, the top plate extends away from the first support plate and has a positioning part. The positioning part is snapped into the positioning groove of the housing, which can fix the current-carrying terminal and improve the stability during connection and use.
[0020] Furthermore, the handle is integrally formed and includes a first end, a second end, and a third end. The first end abuts against the first pressing part, the second end abuts against the second pressing part, and the third end abuts against the third pressing part. When the handle is pressed, the first pressing part, the second pressing part, and the third pressing part are simultaneously pressed.
[0021] With the above improvements, the handle is integrated into a single unit. The handle has a first end, a second end, and a third end. The first end abuts against the first pressing part, the second end abuts against the second pressing part, and the third end abuts against the third pressing part. When pressed, the handle can simultaneously control the first, second, and third springs, facilitating terminal wiring. Attached Figure Description
[0022] Figure 1 A schematic diagram of the overall structure of a novel three-input terminal block;
[0023] Figure 2This is a schematic diagram of the internal structure of a novel three-input terminal block.
[0024] Figure 3 This is a schematic diagram of the internal structure of a novel three-input terminal block (with the handle component removed).
[0025] Figure 4 This is a schematic diagram of the current-carrying terminal of a novel three-input terminal block.
[0026] Figure 5 This is a schematic diagram of the internal structure of a novel three-input terminal block (integrated handle).
[0027] The components include: 1. Housing; 1.1 Inclined surface; 1.2 First insertion hole; 1.3 Second insertion hole; 1.4 Third insertion hole; 1.5 First guide post; 1.6 Second guide post; 1.7 Third guide post; 1.8 Positioning groove; 2. Current-carrying terminal; 2.1 Top plate; 2.2 First support plate; 2.21 First positioning protrusion; 2.3 Second support plate; 2.31 Second positioning protrusion; 2.4 Bottom plate; 2.41 Third positioning protrusion; 2.5 First connecting plate; 2.6 Second connecting plate; 2.7 Third connecting plate; 2.8 First insertion cavity; 2.9 Second insertion cavity; 2.10 Third insertion hole. 3. Cavity; 4. Cover plate; 5. First spring piece; 6.1. First elastic part; 7.2. First fixing part; 8. First positioning hole; 9. First pressing part; 10. Second spring piece; 11. Second elastic part; 12. Second fixing part; 13. Second positioning hole; 14. Second pressing part; 15. Third spring piece; 16.1. Third elastic part; 17.2. Third fixing part; 18. Third positioning hole; 19. Third pressing part; 10. Handle piece; 11. First handle; 12. Second handle; 13. Third handle; 14. First end; 15. Second end; 16. Third end; 17. Positioning part; 18. Connecting section. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] Example 1: As Figures 1 to 5 The novel three-input terminal block shown includes a housing 1, a current-carrying terminal 2, and a cover plate 3. The current-carrying terminal 2 is fixedly disposed in the cavity between the housing 1 and the cover plate 3. The current-carrying terminal 2 includes a top plate 2.1, a first support plate 2.2, a second support plate 2.3, and a bottom plate 2.4. A first connecting plate 2.5 is integrally disposed between the top plate 2.1 and the first support plate 2.2. A second connecting plate 2.6 is integrally disposed between the first support plate 2.2 and the second support plate 2.3. A third connecting plate 2.7 is integrally disposed between the second support plate 2.3 and the bottom plate 2.4. The first connecting plate 2.5 and the third connecting plate 2.7 are disposed on the side away from the cover plate 3, and the second connecting plate 2.6 is disposed on the side closer to the cover plate 3. A first spring 4 is fixed to the upper end of the first support plate 2.2, a second spring 5 is fixed to the upper end of the second support plate 2.3, and a third spring 6 is fixed to the upper end of the bottom plate 2.4.
[0031] The lower end face of the base plate 2.4 fits against the inner wall of the housing 1, so that the current-carrying terminal 2 can be placed well inside the housing 1. The top plate 2.1, the first support plate 2.2 and the second support plate 2.3 are arranged in parallel inside the housing 1, and the second support plate 2.3 and the base plate 2.4 are inclined, so that the current-carrying terminal 2 is inclined as a whole, so that the wire is inclined when connected, which facilitates wiring.
[0032] The housing 1 is provided with a slope 1.1, on which a first insertion hole 1.2, a second insertion hole 1.3 and a third insertion hole 1.4 are respectively provided. The slope 1.1 and the first insertion hole 1.2, the second insertion hole 1.3 and the third insertion hole 1.4 on the slope 1.1 can further ensure that the wire is inserted at an angle.
[0033] The housing 1 is provided with a handle 7, which includes a first handle 7.1, a second handle 7.2 and a third handle 7.3 that are independently set. Each wire is controlled by a separate handle, and the wire can be connected and disconnected individually.
[0034] The lower end of the housing 1 is provided with a connecting post and an elastic buckle. The connecting post and the elastic buckle are integrated with the housing 1, which can facilitate installation and disassembly.
[0035] A first insertion cavity 2.8 is formed between the top plate 2.1 and the first support plate 2.2, and a first insertion hole 1.2 is correspondingly set to the first insertion cavity 2.8. A second insertion cavity 2.9 is formed between the first support plate 2.2 and the second support plate 2.3, and a second insertion hole 1.3 is correspondingly set to the second insertion cavity 2.9. A third insertion cavity 2.10 is formed between the second support plate 2.3 and the bottom plate 2.4, and a third insertion hole 1.4 is correspondingly set to the third insertion cavity 2.10. The first insertion cavity 2.8, the second insertion cavity 2.9, and the third insertion cavity 2.10 can be used to connect wires independently without affecting the layout of other wires.
[0036] The first spring piece 4 includes a first elastic part 4.1 and a first fixing part 4.2. The first fixing part 4.2 of the first spring piece 4 abuts against the upper end surface of the first support plate 2.2, and the first positioning protrusion 2.21 provided on the first support plate 2.2 cooperates with the first positioning hole 4.3 on the first fixing part 4.2, so that the first spring piece 4 can be well fixed on the first support plate 2.2; the first elastic part 4.1 of the first spring piece 4 is inclined to correspond to the first insertion hole 1.2, and the upper end of the first elastic part 4.1 is inclined to the first insertion hole 1.2. It abuts against the lower end face of the top plate 2.1; the first elastic part 4.1 is provided with a first pressing part 4.4, and the lower end of the first handle 7.1 abuts against the first pressing part 4.4. The first insertion cavity 2.8 can be controlled by pressing the first handle 7.1. When the first insertion cavity 2.8 is being plugged in, the first handle 7.1 is pressed down, the first handle 7.1 presses down the first elastic part 4.1, and the wire is smoothly plugged in from the first insertion hole 1.2. After that, the first handle 7.1 is released, the first elastic part 4.1 returns to its original position, and the wire is locked.
[0037] The second spring piece 5 includes a second elastic part 5.1 and a second fixing part 5.2. The second fixing part 5.2 of the second spring piece 5 abuts against the upper end surface of the second support plate 2.3, and the second positioning protrusion 2.31 provided on the second support plate 2.3 cooperates with the second positioning hole 5.3 on the second fixing part, so that the second spring piece 5 can be well fixed on the second support plate 2.3; the second elastic part 5.1 of the second spring piece 5 is inclined to correspond to the second insertion hole 1.3, and the upper end of the second elastic part 5.1 is perpendicular to the second insertion hole 1.3. The lower end face of a support plate 2.2 abuts against each other; a second pressing part 5.4 is provided on the second elastic part 5.1, and the lower end of the second handle 7.2 abuts against the second pressing part 5.4. The second insertion cavity 2.9 can be controlled by pressing the second handle 7.2. When the second insertion cavity 2.9 is being plugged in, the second handle 7.2 is pressed down, and the second handle 7.2 presses down the second elastic part 5.1, and the wire is smoothly plugged in from the second insertion hole 1.3. After that, the second handle 7.2 is released, the second elastic part 5.1 returns to its original position, and the wire is locked.
[0038] The third spring piece 6 includes a second elastic part 5.1 and a third fixing part 6.2. The third fixing part 6.2 of the third spring piece 6 abuts against the upper end surface of the base plate 2.4, and the third positioning protrusion 2.41 provided on the base plate 2.4 cooperates with the third positioning hole 6.3 of the third fixing part 6.2, so that the third spring piece 6 can be well fixed on the base plate 2.4; the third elastic part 6.1 of the third spring piece 6 is inclined to correspond to the third insertion hole 1.4, and the upper end of the third elastic part 6.1 is flush with the base plate 2.4. The lower end faces abut against each other; the third elastic part 6.1 is provided with a third pressing part 6.4, and the lower end of the third handle 7.3 abuts against the third pressing part 6.4. The third insertion cavity 2.10 can be controlled by pressing the third handle 7.3. When the third insertion cavity 2.10 is being plugged in, the third handle 7.3 is pressed down, and the third handle 7.3 presses down the first elastic part 4.1. The wire is smoothly plugged in from the third insertion hole 1.4. After that, the third handle 7.3 is released, the third elastic part 6.1 is reset, and the wire is locked.
[0039] The first shrapnel 4, the second shrapnel 5, and the third shrapnel 6 are arranged in a stepped pattern.
[0040] The housing 1 extends toward the cover plate 3 to form a first guide post 1.5, a second guide post 1.6, and a third guide post 1.7. The first guide post 1.5 is located at the connection between the first elastic part 4.1 and the first fixed part 4.2, the second guide post 1.6 is located at the connection between the second elastic part 5.1 and the second fixed part 5.2, and the third guide post 1.7 is located at the connection between the third elastic part 6.1 and the third fixed part 6.2, which can play a positioning and guiding role.
[0041] The top plate 2.1 extends in a direction away from the first support plate 2.2 and has a positioning part 8. A positioning groove 1.8 is provided on the housing 1. The positioning part 8 is snapped into the positioning groove 1.8 of the housing 1, which can fix the current-carrying terminal 2 and improve the stability during connection and use.
[0042] The current-carrying terminal 2 has a clamp on the side away from the first spring 4. The clamp can be used with an external terminal to achieve internal and external communication.
[0043] Example 2: Figure 4As shown, a novel three-input terminal block includes a housing 1, a current-carrying terminal 2, and a cover plate 3. The current-carrying terminal 2 is fixedly disposed in the cavity between the housing 1 and the cover plate 3. The current-carrying terminal 2 includes a top plate 2.1, a first support plate 2.2, a second support plate 2.3, and a bottom plate 2.4. A first connecting plate 2.5 is integrally disposed between the top plate 2.1 and the first support plate 2.2. A second connecting plate 2.6 is integrally disposed between the first support plate 2.2 and the second support plate 2.3. A third connecting plate 2.7 is integrally disposed between the second support plate 2.3 and the bottom plate 2.4. The first connecting plate 2.5 and the third connecting plate 2.7 are disposed on the side away from the cover plate 3, and the second connecting plate 2.6 is disposed on the side close to the cover plate 3. A first spring 4 is fixed to the upper end of the first support plate 2.2, a second spring 5 is fixed to the upper end of the second support plate 2.3, and a third spring 6 is fixed to the upper end of the bottom plate 2.4.
[0044] The handle 7 is an integral part, comprising a first end 7.4, a second end 7.5, and a third end 7.6. The first end 7.4 abuts against the first pressing part 4.4 on the first spring 4, the second end 7.5 abuts against the second pressing part 5.4 on the second spring 5, and the third end 7.6 abuts against the third pressing part 6.4 on the third spring 6. When the handle 7 is pressed, the first end 7.4, the second end 7.5, and the third end 7.6 on the handle 7 will simultaneously press down the first pressing part 4.4, the second pressing part 5.4, and the third pressing part 6.4 to facilitate wiring.
[0045] like Figure 1 As shown, several terminals can be spliced together to form a terminal block, and a connecting section 9 with the same external shape as the terminal block is provided between the terminals.
[0046] Example 3: A novel three-input terminal block with at least a first insertion cavity 2.8, a second insertion cavity 2.9, and a third insertion cavity 2.10 between the top plate 2.1 and the bottom plate 2.4 of the current-carrying terminal block 2. Depending on different requirements, more connecting plates and support plates can be provided between the top plate 2.1 and the bottom plate 2.4 to form a multi-layer structure with more than three layers.
[0047] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A new and improved three-phase terminal, characterized by: The device includes a housing (1), a current-carrying terminal (2), and a cover plate (3). The current-carrying terminal (2) is fixedly disposed in the cavity between the housing (1) and the cover plate (3). The current-carrying terminal (2) includes a top plate (2.1), a first support plate (2.2), a second support plate (2.3), and a bottom plate (2.4). A first connecting plate (2.5) is integrally disposed between the top plate (2.1) and the first support plate (2.2), and a second connecting plate is integrally disposed between the first support plate (2.2) and the second support plate (2.3). (2.6) A third connecting plate (2.7) is integrally provided between the second support plate (2.3) and the bottom plate (2.4). The first connecting plate (2.5) and the third connecting plate (2.7) are located on the side away from the cover plate (3), and the second connecting plate (2.6) is located on the side close to the cover plate (3). A first spring piece (4) is fixed at the upper end of the first support plate (2.2), a second spring piece (5) is fixed at the upper end of the second support plate (2.3), and a third spring piece (6) is fixed at the upper end of the bottom plate (2.4).
2. A three-phase terminal of novel construction according to claim 1, characterized in that: The lower end face of the bottom plate (2.4) is attached to the inner wall of the shell (1). The top plate (2.1), the first support plate (2.2) and the second support plate (2.3) are arranged in parallel inside the shell (1), and an inclination angle is provided between the second support plate (2.3) and the bottom plate (2.4).
3. A three-phase terminal of novel construction according to claim 1, characterized in that: The housing (1) is provided with an inclined surface (1.1), on which a first insertion hole (1.2), a second insertion hole (1.3), and a third insertion hole (1.4) are respectively provided. A first insertion cavity (2.8) is formed between the top plate (2.1) and the first support plate (2.2), and the first insertion hole (1.2) is correspondingly provided with the first insertion cavity (2.8). A second insertion cavity (2.9) is formed between the first support plate (2.2) and the second support plate (2.3), and the second insertion hole (1.3) is correspondingly provided with the second insertion cavity (2.9). A third insertion cavity (2.10) is formed between the second support plate (2.3) and the bottom plate (2.4), and the third insertion hole (1.4) is correspondingly provided with the third insertion cavity (2.10).
4. A three-phase terminal of novel construction according to claim 3, characterized in that: The first spring (4) includes a first elastic part (4.1) and a first fixing part (4.2). The lower end face of the first fixing part (4.2) abuts against the upper end face of the first support plate (2.2). The first support plate (2.2) is provided with a first positioning protrusion (2.21). The first fixing part (4.2) is provided with a first positioning hole (4.3). The first positioning protrusion (2.21) and the first positioning hole (4.3) are fitted together. The first elastic part (4.1) is inclined to correspond to the first insertion hole (1.2). The second spring (5) includes a second elastic part (5.1) and a second fixing part (5.2). The lower end face of the second fixing part (5.2) abuts against the upper end face of the second support plate (2.3). The second support plate (2.3) is provided with a second positioning protrusion (2.31). The second fixing part (5.1) is inclined to the first insertion hole (1.2). 5.2) is provided with a second positioning hole (5.3), the second positioning protrusion (2.31) is provided in cooperation with the second positioning hole (5.3), and the second elastic part (5.1) is inclined to correspond to the second insertion hole (1.3); the third spring piece (6) includes a third elastic part (6.1) and a third fixing part (6.2), the lower end face of the third fixing part (6.2) abuts against the upper end face of the base plate (2.4), the base plate (2.4) is provided with a third positioning protrusion (2.41), the third fixing part (6.2) is provided with a third positioning hole (6.3), the third positioning protrusion (2.41) is provided in cooperation with the third positioning hole (6.3), and the third elastic part (6.1) is inclined to correspond to the third insertion hole (1.4); the first spring piece (4), the second spring piece (5), and the third spring piece (6) are arranged in a stepped manner.
5. A three-phase terminal of novel construction according to claim 4, characterized in that: The housing (1) is provided with a handle (7), which includes a first handle (7.1), a second handle (7.2), and a third handle (7.3) that are independently provided. The upper end of the first elastic part (4.1) abuts against the lower end face of the top plate (2.1). The first elastic part (4.1) is provided with a first pressing part (4.4) on the side away from the first connecting plate (2.5). The lower end of the first handle (7.1) abuts against the first pressing part (4.4). The upper end of the second elastic part (5.1) is connected to the first support plate. The lower end face of the second elastic part (5.1) abuts against the lower end face of the second elastic part (2.2). The second elastic part (5.1) is provided with a second pressing part (5.4) on the side near the second connecting plate (2.6). The lower end of the second handle (7.2) abuts against the second pressing part (5.4). The upper end of the third elastic part (6.1) abuts against the lower end face of the second support plate (2.3). The third elastic part (6.1) is provided with a third pressing part (6.4) on the side away from the third connecting plate (2.7). The lower end of the third handle (7.3) abuts against the third pressing part (6.4).
6. A three-phase terminal of novel construction according to claim 4, characterized in that: The housing (1) extends toward the cover plate (3) to form a first guide post (1.5), a second guide post (1.6), and a third guide post (1.7). The first guide post (1.5) is disposed at the connection between the first elastic part (4.1) and the first fixed part (4.2). The second guide post (1.6) is disposed at the connection between the second elastic part (5.1) and the second fixed part (5.2). The third guide post (1.7) is disposed at the connection between the third elastic part (6.1) and the third fixed part (6.2).
7. A three-phase terminal of novel construction according to claim 1, characterized in that: The top plate (2.1) has a positioning part (8) extending away from the first support plate (2.2), and the housing (1) is provided with a positioning groove (1.8), and the positioning part (8) is disposed in the positioning groove (1.8) by snap-fit.
8. A three-phase terminal of novel construction according to claim 5, characterized in that: The handle (7) is integrally formed and includes a first end (7.4), a second end (7.5) and a third end (7.6). The first end (7.4) abuts against the first pressing part (4.4), the second end (7.5) abuts against the second pressing part (5.4), and the third end (7.6) abuts against the third pressing part (6.4). When the handle (7) is pressed, the first pressing part (4.4), the second pressing part (5.4) and the third pressing part (6.4) are simultaneously pressed.