Protective terminal block

Abstract

The utility model relates to the technical field of terminal blocks, in particular to a protective terminal block, which comprises a terminal plate detachably assembled on the front side of a terminal shell, diodes arranged at equal intervals are arranged in the middle of the terminal plate, and terminal blocks are symmetrically arranged on the terminal plate along the two sides of the diodes. The connection stability between the terminal shell and the terminal plate can be guaranteed through the side cover plate, the diode is arranged in the middle of the terminal plate, the terminal bases can be conveniently and symmetrically arranged on the two sides of the diode, and the lower side of the end face, close to one side of the diode, of each terminal base is a vertical face. The side face of the terminal base on the upper side of the vertical face inclines towards the side gradually away from the diode, in this way, a Y-shaped space can be formed between the two sets of terminal bases which are symmetrically arranged, the diode is located on the bottom side of the Y-shaped space, and in the follow-up maintenance process, enough operation space can be provided for operating the diode.

Description

Technical Field

[0001] The utility model relates to the technical field of terminal blocks, in particular to a protective terminal block. Background Art

[0002] A terminal block refers to a sturdy device composed of an insulating base and more than one electrical component. Each conductive component can serve as a joint for connecting two or more conductors (wires), and at the same time, it can also be used as a tool for individually connecting or disconnecting conductors (wires). Terminal blocks are required in the fields of automatic control, control cabinet wiring, and data maintenance. A wiring terminal with a diode can protect the circuit from reverse voltage and extend the service life of circuit components. For a terminal block, on the terminal board equipped with a diode, it is necessary to consider the convenience of subsequent maintenance of the diode. The structure of the traditional terminal block is relatively simple. After installing a diode in a compact space, the structure of the traditional terminal block will affect the subsequent maintenance of the diode. Therefore, a protective terminal block is needed. Summary of the Utility Model

[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a protective terminal block, which is used to solve the problem of the influence on the subsequent maintenance convenience after the diode is installed on the terminal block in the prior art.

[0004] To achieve the above purpose and other related purposes, the present utility model provides the following technical solutions:

[0005] A protective terminal block, comprising:

[0006] A terminal housing, a terminal board detachably assembled on the front side of the terminal housing, a side cover plate covering the side of the terminal housing and covering the terminal board, and diodes arranged in an equally divided manner at the middle position of the terminal board;

[0007] A terminal block, the terminal block is symmetrically arranged on the terminal board on both sides of the diode, the lower side of the end surface of the terminal block close to the diode is a vertical surface, and the side surface of the terminal block above the vertical surface slopes gradually away from the diode side, and a wire slot is arranged on the side surface of the terminal block far from the diode.

[0008] By implementing the above technical solution, the side cover plate can ensure the connection stability between the terminal housing and the terminal board. Arranging the diodes at the middle position of the terminal board can facilitate the symmetrical arrangement of the terminal blocks on both sides of the diodes. The lower side of the end surface of the terminal block close to the diode is a vertical surface, and the side surface of the terminal block above the vertical surface slopes gradually away from the diode side, so that a Y-shaped space can be formed between the two symmetrically arranged terminal blocks, and the diode is located at the bottom of the Y-shaped space. In this way, there will be enough operating space to operate the diode during subsequent maintenance.

[0009] In an embodiment of the present utility model, a wire pressing screw is provided on the upper side of the terminal block. A wiring cavity is provided inside the terminal block. The wire slot is connected to the wiring cavity. The wire pressing screw penetrates through the upper side of the wiring cavity and extends into the interior of the wiring cavity.

[0010] Implementing the above technical solution, the wire pressing screw penetrates through the upper side of the wiring cavity and extends into the interior of the wiring cavity, which can press the wire harness extending into the wire slot, thereby ensuring the connection stability of the wire harness.

[0011] In an embodiment of the present utility model, a wiring pin is provided between the interior of the wiring cavity and the interior of the terminal housing. The front side of the wire pressing screw contacts the wiring pin. The wiring pin includes a set of pins in the slot and a set of pins in the housing. Both the pins in the slot and the pins in the housing are L-shaped pins. The short side portions of the pins in the slot and the pins in the housing are connected to each other.

[0012] Implementing the above technical solution, by providing a set of pins in the slot and a set of pins in the housing to respectively correspond to the force conditions at different positions, and making both the pins in the slot and the pins in the housing be L-shaped pins, it can make the pins have strong self-supporting and stability. Connecting the short side portions of the pins in the slot and the pins in the housing can improve the connection reliability between the two.

[0013] In an embodiment of the present utility model, the long side portion of the pin in the slot is located at the top of the wire slot and under the wire pressing screw. The short side portion of the pin in the slot is located at the rear side of the wire slot. The short side portion of the pin in the housing is provided between the upper side of the terminal board and the lower side of the wire slot. The short side portion of the pin in the housing is connected to the short side portion of the pin in the slot.

[0014] Implementing the above technical solution, by locating the long side portion of the pin in the slot at the top of the wire slot and under the wire pressing screw, it can ensure the contact stability between the wire pressing screw and the pin in the slot, and can increase the contact area between the pin in the slot and the wire harness inserted into the wire slot, ensuring the connection reliability. The short side portion of the pin in the slot being located at the rear side of the wire slot can play a role in limiting the inserted wire harness. The short side portion of the pin in the housing is connected to the short side portion of the pin in the slot, and using the connection of the short side portions can improve the support stability of the pins.

[0015] In an embodiment of the present utility model, the long side portion of the pin in the housing penetrates through the terminal board and extends into the interior of the terminal housing.

[0016] Implementing the above technical solution, extending the long side portion of the pin in the housing into the interior of the terminal housing can facilitate the electrical connection of the pin in the housing.

[0017] In an embodiment of the present utility model, a ventilation hole communicating with the outside is provided at the rear side of the wire slot.

[0018] To implement the above technical solution, the ventilation holes can ensure the ventilation effect in the wire insertion groove and the stability of the working environment in the wire insertion groove.

[0019] In an embodiment of the present utility model, a guiding panel is provided at the upper end of the front side of the wire insertion groove, and the guiding panel is inclined downward to the lower side of the wire insertion groove.

[0020] To implement the above technical solution, the guiding panel can provide a guiding function when the wire harness is inserted into the wire insertion groove, improving the smoothness of the wire harness insertion.

[0021] As described above, a protective terminal block of the present utility model has the following beneficial effects: the side cover plate can ensure the connection stability between the terminal housing and the terminal board. By arranging the diode in the middle position of the terminal board, it is convenient to symmetrically arrange the terminal seats on both sides of the diode. The lower side of the end face of the terminal seat close to the diode is a vertical plane, and the side face of the terminal seat above the vertical plane is inclined gradually away from the diode side. In this way, a Y-shaped space can be formed between the two symmetrically arranged terminal seats, and the diode is located at the bottom of the Y-shaped space. Thus, there will be enough operating space to operate on the diode during subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It shows a schematic structural view of the protective terminal block disclosed in the embodiment of the present utility model.

[0023] Figure 2 It shows a schematic structural view of the terminal seat of the protective terminal block disclosed in the embodiment of the present utility model.

[0024] Figure 3 It shows a schematic cross-sectional view of the terminal seat of the protective terminal block disclosed in the embodiment of the present utility model.

[0025] DESCRIPTION OF REFERENCE NUMERALS

[0026] 1. Terminal housing; 2. Terminal board; 3. Side cover plate; 4. Diode; 5. Terminal seat; 6. Wire insertion groove; 7. Pressing screw; 8. Wiring cavity; 9. Ventilation hole; 10. Guiding panel; 11. Short side part of the pin in the groove; 12. Short side of the pin in the housing; 13. Long side part of the pin in the groove; 14. Long side part of the pin in the housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0028] Please refer to Figures 1 to 3, the present utility model provides a protective terminal block, which includes a terminal board 2 detachably assembled on the front side of a terminal housing 1, a side cover plate 3 wrapping the side of the terminal housing 1 and covering the terminal board 2. A diode 4 arranged in an equally divided manner is provided at the middle position of the terminal board 2. Terminal seats 5 are symmetrically arranged on the terminal board 2 on both sides of the diode 4. The lower side of the end face of the terminal seat 5 close to the diode 4 is a vertical surface, and the side surface of the terminal seat 5 above the vertical surface is inclined gradually away from the diode 4. A wire insertion groove 6 is provided on the side surface of the terminal seat 5 far away from the diode 4.

[0029] The side cover plate 3 can ensure the connection stability between the terminal housing 1 and the terminal board 2. Arranging the diode 4 at the middle position of the terminal board 2 can facilitate the symmetrical arrangement of the terminal seats 5 on both sides of the diode 4. The lower side of the end face of the terminal seat 5 close to the diode 4 is a vertical surface, and the side surface of the terminal seat 5 above the vertical surface is inclined gradually away from the diode 4. In this way, a Y-shaped space can be formed between the two symmetrically arranged terminal seats 5, and the diode 4 is located at the bottom of the Y-shaped space. In this way, during subsequent maintenance, there will be enough operating space to operate on the diode 4.

[0030] A pressing screw 7 is provided on the upper side of the terminal seat 5. A wiring cavity 8 is arranged inside the terminal seat 5. The wire insertion groove 6 is communicated with the wiring cavity 8. The pressing screw 7 penetrates through the upper side of the wiring cavity 8 and extends into the interior of the wiring cavity 8, which can press the wire harness extending into the wire insertion groove 6, thereby ensuring the connection stability of the wire harness.

[0031] A wiring pin is arranged between the interior of the wiring cavity 8 and the interior of the terminal housing 1. The front side of the pressing screw 7 contacts the wiring pin. The wiring pin includes a set of pins in the groove and a set of pins in the housing. Both the pins in the groove and the pins in the housing are L-shaped pins. The short sides 12 of the pins in the groove and the pins in the housing are connected to each other. By setting a set of pins in the groove and a set of pins in the housing to respectively correspond to the force conditions at different positions, and making both the pins in the groove and the pins in the housing be L-shaped pins, the pins themselves can have strong support and stability. Connecting the short sides 12 of the pins in the groove and the pins in the housing can improve the connection reliability between the two.

[0032] The long side portion 13 of the pin inside the slot is located at the top of the wire insertion slot 6 and below the wire pressing screw 7. The short side portion 11 of the pin inside the slot is located at the rear side of the wire insertion slot 6. The short side 12 of the pin inside the shell is arranged between the upper side of the terminal board 2 and the lower side of the wire insertion slot 6. The short side 12 of the pin inside the shell is connected to the short side portion 11 of the pin inside the slot. By locating the long side portion 13 of the pin inside the slot at the top of the wire insertion slot 6 and below the wire pressing screw 7, the contact stability between the wire pressing screw 7 and the pin inside the slot can be ensured, and the contact area between the pin inside the slot and the wire harness inserted into the wire insertion slot 6 can be increased, ensuring the reliability of the connection. The short side portion 11 of the pin inside the slot is located at the rear side of the wire insertion slot 6, which can play a role in limiting the inserted wire harness. The short side 12 of the pin inside the shell is connected to the short side portion 11 of the pin inside the slot, and the connection of the short side portions can improve the support stability of the pin.

[0033] The long side portion 14 of the pin inside the shell penetrates through the terminal board 2 and extends into the terminal housing 1. Extending the long side portion 14 of the pin inside the shell into the terminal housing 1 can facilitate the electrical connection of the pin inside the shell.

[0034] Vent holes 9 communicating with the outside are provided at the rear side of the wire insertion slot 6. The provision of the vent holes 9 can ensure the ventilation effect inside the wire insertion slot 6 and the stability of the working environment inside the wire insertion slot 6.

[0035] A guiding panel 10 is provided at the upper end of the front side of the wire insertion slot 6. The guiding panel 10 is inclined downward towards the wire insertion slot 6. The provision of the guiding panel 10 can provide a guiding function when the wire harness is inserted into the wire insertion slot 6 and improve the smoothness of the wire harness insertion.

[0036] The utility model can ensure the connection stability between the terminal housing and the terminal board through the side cover plate. By arranging the diode at the middle position of the terminal board, it is convenient to symmetrically arrange the terminal seats on both sides of the diode. The lower side of the end face of the terminal seat close to the diode is a vertical surface, and the side face of the terminal seat above the vertical surface gradually inclines away from the diode side. In this way, a Y-shaped space can be formed between the two symmetrically arranged terminal seats, and the diode is located at the bottom of the Y-shaped space. In this way, sufficient operating space can be provided for operating the diode during subsequent maintenance.

[0037] The above embodiments are only illustrative of the principles and effects of the utility model and are not used to limit the utility model. All equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A protective terminal block, characterized in that: include: A terminal housing, a terminal board detachably mounted on the front side of the terminal housing, a side cover that wraps around the side of the terminal housing and covers the terminal board, and diodes arranged in equal parts in the middle of the terminal board; The terminal seat is symmetrically arranged on the terminal board along both sides of the diode. The lower side of the end face of the terminal seat close to the diode is a vertical surface, and the side face of the terminal seat on the upper side of the vertical surface is gradually inclined away from the diode. A wire insertion groove is provided on the side of the terminal seat away from the diode.

2. The protective terminal block according to claim 1, wherein: A wire pressing screw is provided on the upper side of the terminal seat, a wiring cavity is provided in the terminal seat, the wire insertion slot is connected to the wiring cavity, and the wire pressing screw passes through the upper side of the wiring cavity and extends to the inside of the wiring cavity.

3. The protective terminal block according to claim 2, wherein: Wiring pins are arranged between the wiring cavity and the inside of the terminal shell, and the front side of the wire pressing screw contacts the wiring pins. The wiring pins include a group of pins in the slot and a group of pins in the shell. The pins in the slot and the pins in the shell are both L-shaped pins, and the short sides of the pins in the slot and the short sides of the pins in the shell are connected to each other.

4. The protective terminal block according to claim 3, wherein: The long side of the pin in the slot is located at the top of the wire insertion slot and the bottom of the wire pressing screw, the short side of the pin in the slot is located at the rear side of the wire insertion slot, the short side of the pin in the shell is arranged between the upper side of the terminal board and the lower side of the wire insertion slot, and the short side of the pin in the shell is connected to the short side of the pin in the slot.

5. The protective terminal block according to claim 3, wherein: The long sides of the inner-shell pins penetrate the terminal board and extend into the interior of the terminal housing.

6. The protective terminal block according to claim 1, wherein: A vent hole communicating with the outside world is provided at the rear side of the wire insertion slot.

7. The protective terminal block according to claim 1, wherein: A guide panel is provided at the upper end of the front side of the wire insertion slot, and the guide panel is inclined toward the lower side of the wire insertion slot.

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