Pressure sensitive anti-loosening connection terminals and electrical equipment

Abstract

The present invention provides a pressure-sensitive anti-loosening connection terminal and electrical equipment. According to the connection terminal of the present invention, it includes an insulating seat, a first connection component and a second connection component arranged on the insulating seat, the first connection component is used to connect with the first joint, and the second connection component is used to connect with the second joint; the first connection component includes a first connection member and a first fastener for fastening the first joint, and the second connection component includes a second connection member and a second fastener for fastening the second joint; the first connection member and the second connection member are kept in contact by the pressing force applied by the first fastener and the second fastener, so that the first joint and the second joint are conductive. The connection of the connection terminal is more reliable.

Description

Technical Field

[0001] The present invention relates to the field of electrical equipment, and in particular to a pressure-sensitive anti-loosening connection terminal and electrical equipment. Background Art

[0002] In existing electrical equipment or electrical circuits, electrical connections are usually achieved through wiring terminals to achieve transmission of power or electrical signals. In order to ensure the reliability of transmission of power or electrical signals, it is necessary to ensure that the connection points of the electrical circuits (i.e., the mating points of the connection terminals) are in reliable contact, because once the contact of the connection points is unreliable or loose, the contact resistance at the connection points will be too large, which will lead to overheating at the connection points, affecting the safety of the operation of the electrical circuits, and even causing serious accidents.

[0003] Even if the existing connection terminals ensure reliable connection during installation, they may still become loose due to the influence of temperature, humidity, vibration, etc. over time, resulting in poor safety of the connection terminals. Summary of the invention

[0004] The present invention aims to provide a pressure-sensitive anti-loosening connection terminal and an electrical device to solve the problem of poor safety of the connection terminal in the prior art.

[0005] The present invention provides a connecting terminal, characterized in that it includes an insulating seat, a first connecting component and a second connecting component arranged on the insulating seat, the first connecting component is used to connect to a first joint, and the second connecting component is used to connect to a second joint; the first connecting component includes a first connecting piece and a first fastener for fastening the first joint, and the second connecting component includes a second connecting piece and a second fastener for fastening the second joint; the first connecting piece and the second connecting piece are kept in contact by the pressing force applied by the first fastener and the second fastener, so that the first joint and the second joint are conductive.

[0006] Furthermore, the first connecting member includes a first body and an anode structure, the first body has a first cavity, the anode structure is movably arranged on the first body, and the first body is deformed when subjected to the pressing force of the first fastener, so that the pressure in the first cavity increases and the anode structure is pushed out.

[0007] Furthermore, the first connecting member includes a first main body and an anode structure, wherein the anode structure is fixedly disposed on the first main body and moves along with the first main body when the first main body is deformed.

[0008] Furthermore, a first through hole is provided on the first main body, and the first fastener passes through the first through hole and cooperates with the first threaded hole on the insulating seat.

[0009] Furthermore, the second connecting member includes a second body and a cathode structure, the second body has a second cavity, the cathode structure is movably arranged on the second body, and the second body is deformed when subjected to the pressing force of the second fastener, so that the pressure in the second cavity increases and the cathode structure is pushed out.

[0010] Furthermore, the second connecting member includes a second main body and a cathode structure, wherein the cathode structure is fixedly disposed on the second main body and moves along with the second main body when the second main body is deformed.

[0011] Furthermore, a second through hole is provided on the second main body, and the second fastener passes through the second through hole and cooperates with the second threaded hole on the insulating seat.

[0012] Further, a first gap for accommodating the first joint is provided between the first fastener and the first connecting member, and / or a second gap for accommodating the second joint is provided between the second fastener and the second connecting member.

[0013] Furthermore, the first body is an arc-shaped conductive sheet structure with an opening.

[0014] Furthermore, the second body is an arc-shaped conductive sheet structure with an opening.

[0015] Furthermore, the first cavity is filled with an inert gas.

[0016] Furthermore, the second cavity is filled with an inert gas.

[0017] Furthermore, it also includes an insulating shell, and the contacting parts of the first connecting member and the second connecting member are both embedded in the insulating shell.

[0018] Furthermore, the first connecting member includes a first main body and an anode structure, the anode structure is connected to the first main body and is used for contact and conduction; the second connecting member includes a second main body and a cathode structure, the cathode structure is connected to the second main body and is used for contact and conduction with the anode structure; the anode structure and the cathode structure are both located in an insulating shell, the first main body is fixedly connected to the insulating shell, and the second main body is fixedly connected to the insulating shell.

[0019] According to the connection terminal of the present invention, the insulating seat of the connection terminal is used to install the first connection component and the second connection component, and can also play an insulating role while providing installation support to ensure the safety of the connection terminal. The first connection component is used to connect with the first joint, and the first fastener is used to fasten the first joint to fix it. The second connection component is used to connect with the second joint, and the second fastener is used to fasten the second joint. Since when the first fastener fastens the first joint, the first connection member is also subjected to the pressing force applied by the first fastener, and when the second fastener fastens the second joint, the second connection member is also subjected to the pressing force applied by the second fastener, and the first connection member and the second connection member need to maintain contact through the pressing force, and the first joint and the second joint member are connected, therefore, when the first joint and / or the second joint are loosened, the pressing force is reduced or disappears, so that the first connection member and the second connection member are no longer in contact, thereby achieving the effect of automatic disconnection, thereby avoiding the problem that the existing terminal cannot be discovered and handled in time when it is loose, resulting in excessive contact resistance, prone to overheating, and affecting the safety of electrical circuit operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 is a schematic diagram of the main structure of the connecting terminal according to the present invention;

[0022] Figure 2 is a schematic cross-sectional structural diagram of a connecting terminal according to the present invention;

[0023] Figure 3 It is a schematic cross-sectional structural diagram of the cooperation between the anode structure and the cathode structure of the connection terminal according to the present invention.

[0024] Description of reference numerals:

[0025] 21. First fastener; 10. Insulating seat; 31. Second fastener; 11. Seat body; 111. Nut; 33. Second gap; 32. Second connecting piece; 321. Cathode structure; 221. Anode structure; 12. Insulating cap; 23. First gap; 22. First connecting piece; 40. Insulating shell. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0027] like Figures 1 to 3As shown, according to an embodiment of the present invention, a pressure-sensitive anti-loosening connection terminal is provided, the connection terminal includes an insulating seat 10, a first connection component 20 and a second connection component 30 arranged on the insulating seat 10, the first connection component 20 is used to connect with the first joint, and the second connection component 30 is used to connect with the second joint; the first connection component 20 includes a first connection member 22 and a first fastener 21 for fastening the first joint, and the second connection component 30 includes a second connection member 32 and a second fastener 31 for fastening the second joint; the first connection member 22 and the second connection member 32 are kept in contact by the pressing force applied by the first fastener 21 and the second fastener 31, so that the first joint and the second joint are conductive.

[0028] The insulating seat 10 of the connection terminal is used to install the first connection component 20 and the second connection component 30, and can also play an insulating role while providing installation support to ensure the safety of the connection terminal. The first connection component 20 is used to connect with the first joint, and the first fastener 21 is used to fasten the first joint to fix it. The second connection component 30 is used to connect with the second joint, and the second fastener 31 is used to fasten the second joint. When the first fastener 21 fastens the first joint, the first connector 22 is also subjected to the pressing force applied by the first fastener 21, and when the second fastener 31 fastens the second joint, the second connector 32 is also subjected to the pressing force applied by the second fastener 32, and the first connector 22 and the second connector 32 need to maintain contact through the pressing force and make the first joint and the second joint member conductive. Therefore, when the first joint and / or the second joint becomes loose, the pressing force is reduced or disappears, so that the first connector 22 and the second connector 32 are no longer in contact, thereby achieving the effect of automatic disconnection, thereby avoiding the problem that the existing terminal blocks cannot be discovered and handled in time when they are loose, resulting in excessive contact resistance, prone to overheating, and affecting the safe operation of electrical circuits.

[0029] like Figure 1 and 2 As shown, in this embodiment, the insulating seat 10 includes a seat body 11 and an insulating cap 12, the seat body 11 and the insulating cap 12 are detachably connected, and both are made of insulating materials to ensure insulation performance and improve safety in use. For example, in this embodiment, the base 11 is an injection molded base, and the insulating cap 12 is a plastic shell, which can be made of materials such as melamine with high fire resistance.

[0030] The specific structures of the base body 11 and the insulating cap 12 can be determined as needed. The base body 11 and the insulating cap 12 can be circular, square or other structures.

[0031] In this embodiment, two receiving grooves are provided on the base body 11, which are respectively matched with the first connecting component 20 and the second connecting component 30. Nuts are fixedly provided in the receiving grooves, so that threaded holes are formed on the base body 11 through the nuts. This makes it more convenient to form a first threaded hole for matching with the first fastener 21 and a second threaded hole for matching with the second fastener 31 on the base body 11, and the structural strength of the base body 11 can be ensured.

[0032] Preferably, in order to improve the electrical conductivity and avoid excessive resistance and heat generation that may affect the reliability of the base 11, the nut may be a galvanized nut. Accordingly, the surfaces of the first fastener 21 and the second fastener 31 may also be galvanized.

[0033] The first fastener 21 and the second fastener 31 can be any threaded structure such as a bolt, a screw, etc., as long as they can achieve the fastening of the first joint and the second joint and provide a tightening force for the first connecting member 22 and the second connecting member 23.

[0034] In a feasible way of the present embodiment, in order to make the contact between the first connecting member 22 and the second connecting member 32 more reliable and to be able to promptly break away from the contact when looseness occurs, the first connecting member 22 includes a first main body and an anode structure 221, the first main body has a first cavity, the anode structure 221 is movably arranged on the first main body, and the first main body is deformed when subjected to the pressing force of the first fastener 21, so that the pressure in the first cavity increases and the anode structure 221 is pushed out.

[0035] Optionally, in order to improve insulation, the first cavity is filled with an inert gas, such as nitrogen.

[0036] In another feasible manner of this embodiment, the first connecting member 22 includes a first body and an anode structure 221 . The anode structure 221 is fixedly disposed on the first body and moves with the first body when the first body is deformed.

[0037] For example, when the first body is stretched by the pressing force, it moves with the first body and contacts the second connecting member 32 .

[0038] Optionally, a pin is provided on the anode structure 221 , and the pin may be round, square, etc., to cooperate with the second connector 32 .

[0039] Optionally, in order to make it easier for the first fastener 21 to fasten the first joint and cooperate with the nut, a first through hole is provided on the first body, and the first fastener 21 passes through the first through hole and cooperates with the first threaded hole on the insulating seat 10.

[0040] Optionally, a first gap 23 for accommodating the first joint is provided between the first fastener 21 and the first connecting member 22 . The first gap 23 is located between the first fastener 21 and the first connecting member 22 , so that the first joint is fixed more firmly.

[0041] Specifically, the first gap 23 is located between the annular washer on the first fastening member 21 and the first connecting member 22 .

[0042] Optionally, the longitudinal section of the first body is arc-shaped, and the arc-shaped protrusion faces the first gap 23, so that the first connecting member 22 is easier to deform, thereby improving sensitivity.

[0043] In a feasible manner of this embodiment, the second connecting member 32 includes a second main body and a cathode structure 321, the second main body has a second cavity, and the cathode structure 321 is movably arranged on the second main body. When the second main body is subjected to the pressing force of the second fastener 31, it is deformed, so that the pressure in the second cavity increases and the cathode structure 321 is pushed out.

[0044] Optionally, the second cavity is filled with an inert gas, which can serve as a medium to generate pressure changes when the second connector 32 is deformed to push the cathode structure 321 to move, and can also have good insulation properties to ensure safety.

[0045] In another feasible manner of this embodiment, the second connecting member 22 includes a second main body and a cathode structure 321 . The cathode structure 321 is fixedly disposed on the second main body and moves along with the second main body when the second main body is deformed.

[0046] For example, when the second body is stretched by the pressing force, it moves with the second body and contacts the first connecting member 22 .

[0047] Optionally, a socket for accommodating a pin is provided on the cathode structure 321 . The socket is used to cooperate with the pin, and its shape is adapted to the pin, such as round or square.

[0048] Optionally, in order to facilitate the passing of the second fastener 31 , a second through hole is provided on the second body, and the second fastener 31 passes through the second through hole and cooperates with the second threaded hole on the insulating seat 10 .

[0049] Optionally, in order to improve the reliability of the connection with the second joint, a second gap 33 for accommodating the second joint is provided between the second fastener 31 and the second connector 32 .

[0050] Specifically, the second gap 33 is located between the annular washer on the second fastening member 31 and the second connecting member 32 .

[0051] Preferably, the second body is arc-shaped, and the arc-shaped protrusion faces the second gap 33, so that the second connecting member 32 is easier to deform, thereby improving sensitivity.

[0052] In this embodiment, when the height of the first joint space between the first fastener 21 and the first connecting member 22 is greater than the first set value, and / or the height of the second joint space between the second fastener 31 and the second connecting member 32 is greater than the second set value, the first connecting member 22 and the second connecting member 32 are out of contact.

[0053] The first body is an arc-shaped conductive sheet structure with an opening. The second body is an arc-shaped conductive sheet structure with an opening. Since the first connector 22 and the second connector 32 are pressure-sensitive conductive connecting sheets with an open semicircular arc-shaped galvanized steel tile structure, when the first connector and the second connector (which can be U-shaped or pin-type terminals) are placed in the first gap 23 and the second gap 33, and the first fastener 21 and the second fastener 31 are tightened and fixed, they can better withstand force and deform to generate pressure.

[0054] Combination Figure 2 and Figure 3 The connection terminal further includes an insulating shell 40, and the contacting parts of the first connector 22 and the second connector 32 are both embedded in the insulating shell 40. The insulating shell 40 can support the first connector 22 and the second connector 32.

[0055] The first connector 22 includes a first body and an anode structure 221, the anode structure 221 is connected to the first body and used for contact and conduction; the second connector 32 includes a second body and a cathode structure 321, the cathode structure 321 is connected to the second body and used for contact and conduction with the anode structure 221. The anode structure 221 and the cathode structure 321 are both located in the insulating shell 40, the first body is fixedly connected to the insulating shell 40, and the second body is fixedly connected to the insulating shell 40. The insulating shell 40 can support and limit the anode structure 221 and the cathode structure 321, and provide a sealed isolation and reliable connection place for the two.

[0056] Since the first connecting member 22 and the second connecting member 32 are hollow and filled with inert gas (the inert gas can be nitrogen or other similar gas with fire-proof and arc-extinguishing properties), the anode structure 221 of the metal led out near the inner side of the terminal of the first connecting member 22 can cooperate with the cathode structure 321 of the metal led out near the inner side of the terminal of the second connecting member 22 in the insulating shell 40 in which it is embedded to achieve contact or separation.

[0057] During the use of the connection terminal, the first connector is inserted into the first gap 23, and the first fastener 21 passes through the first through hole in the middle of the first connector 22 and is tightened with the nut 111 in the seat body 11 to achieve tightening. During the tightening process of the first fastener 21, the stroke between the annular gasket on it and the first connector 22 is reduced to contact. After the contact stroke exceeds the stroke, the first connector 22 will produce a slight deformation, and its internal pressure will increase. The slight internal pressure change is reflected in the sudden increase in the pressure of the inert gas filled inside. The force of the sudden increase in internal pressure pushes the anode structure 221 forward and reliably contacts the cathode structure 321 on the second connector 32, thereby ensuring conduction. The working process of the second fastener 31 and the second connector 32 is the same as that of the first fastener 21 and the first connector 22, so it will not be repeated.

[0058] When the overtravel of the tightening of any first connector 22 and the first fastener 21 disappears and the pressure of the first connector 22 or the second connector 32 is released, it is directly reflected that the terminal connection is loose. At this time, the pressure of the anode structure 221 or the cathode structure 321 is released, and the corresponding retraction of the loosened end occurs, which can disconnect the connection point to avoid overheating due to poor terminal contact.

[0059] The connecting terminal according to the present invention has the following technical effects:

[0060] The connection terminal is a pressure-sensitive anti-loosening terminal, which can provide two-side contact points for electrical connection, realize the connection reliability detection of the line electrical connection point, and the tightening pressure reflects the connection stability; when the connection point is abnormally loose, the tightening pressure is released to disconnect the line, avoiding the burning of the line due to unreliable contact and overheating.

[0061] According to an embodiment of the present invention, an embodiment of an electrical device is provided. The electrical device includes a pressure-sensitive anti-loosening connection terminal of the above embodiment. Figure 1 The connecting terminal includes an insulating seat 10, a first connecting component 20 and a second connecting component 30 arranged on the insulating seat 10, the first connecting component 20 is used to connect to the first joint, and the second connecting component 30 is used to connect to the second joint; the first connecting component 20 includes a first connecting member 22 and a first fastener 21 for fastening the first joint, and the second connecting component 30 includes a second connecting member 32 and a second fastener 31 for fastening the second joint; the first connecting member 22 and the second connecting member 32 are kept in contact by the pressing force applied by the first fastener 21 and the second fastener 31, so that the first joint and the second joint are conductive.

[0062] The insulating seat 10 of the connection terminal is used to install the first connection component 20 and the second connection component 30, and can also play an insulating role while providing installation support to ensure the safety of the connection terminal. The first connection component 20 is used to connect with the first joint, and the first fastener 21 is used to fasten the first joint to fix it. The second connection component 30 is used to connect with the second joint, and the second fastener 31 is used to fasten the second joint. When the first fastener 21 fastens the first joint, the first connector 22 is also subjected to the pressing force applied by the first fastener 21, and when the second fastener 31 fastens the second joint, the second connector 32 is also subjected to the pressing force applied by the second fastener 32, and the first connector 22 and the second connector 32 need to maintain contact through the pressing force and make the first joint and the second joint member conductive. Therefore, when the first joint and / or the second joint becomes loose, the pressing force is reduced or disappears, so that the first connector 22 and the second connector 32 are no longer in contact, thereby achieving the effect of automatic disconnection, thereby avoiding the problem that the existing terminal blocks cannot be discovered and handled in time when they are loose, resulting in excessive contact resistance, prone to overheating, and affecting the safe operation of electrical circuits.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connecting terminal, characterized in that: It comprises an insulating seat (10), a first connecting component (20) and a second connecting component (30) arranged on the insulating seat (10), wherein the first connecting component (20) is used to connect to a first joint, and the second connecting component (30) is used to connect to a second joint; The first connection assembly (20) comprises a first connection member (22) and a first fastener (21) for fastening the first joint, and the second connection assembly (30) comprises a second connection member (32) and a second fastener (31) for fastening the second joint; The first connecting member (22) and the second connecting member (32) are kept in contact with each other by the pressing force applied by the first fastening member (21) and the second fastening member (31), so that the first joint and the second joint are connected; It also includes an insulating shell (40), wherein the contacting parts of the first connecting member (22) and the second connecting member (32) are both embedded in the insulating shell (40); The first connecting member (22) comprises a first main body and an anode structure (221), wherein the anode structure (221) is connected to the first main body and is used for contact and conduction; The second connecting member (32) comprises a second main body and a cathode structure (321), wherein the cathode structure (321) is connected to the second main body and is used to contact and conduct with the anode structure (221); The anode structure (221) and the cathode structure (321) are both located in the insulating shell (40), the first body is fixedly connected to the insulating shell (40), and the second body is fixedly connected to the insulating shell (40); The anode structure (221) is fixedly arranged on the first body, and moves along with the first body when the first body is deformed; The cathode structure (321) is fixedly arranged on the second body, and moves along with the second body when the second body is deformed; When the first joint and / or the second joint is loosened, the first connecting member and the second connecting member are no longer in contact with each other to achieve automatic disconnection.

2. The connecting terminal according to claim 1, characterized in that: The first main body is provided with a first through hole, and the first fastener (21) passes through the first through hole and cooperates with the first threaded hole on the insulating seat (10).

3. The connecting terminal according to claim 1, characterized in that: The second main body is provided with a second through hole, and the second fastener (31) passes through the second through hole and cooperates with the second threaded hole on the insulating seat (10).

4. The connecting terminal according to claim 1, characterized in that: A first gap (23) for accommodating the first joint is provided between the first fastener (21) and the first connecting member (22).

5. The connecting terminal according to claim 1, characterized in that: The first body is an arc-shaped conductive sheet structure with an opening.

6. The connecting terminal according to claim 1, characterized in that: The second body is an arc-shaped conductive sheet structure with an opening.

7. The connecting terminal according to claim 1, characterized in that: The first cavity is filled with an inert gas.

8. The connecting terminal according to claim 1, characterized in that: The second cavity is filled with an inert gas.

9. A connecting terminal, characterized in that: It comprises an insulating seat (10), a first connecting component (20) and a second connecting component (30) arranged on the insulating seat (10), wherein the first connecting component (20) is used to connect to a first joint, and the second connecting component (30) is used to connect to a second joint; The first connection assembly (20) comprises a first connection member (22) and a first fastener (21) for fastening the first joint, and the second connection assembly (30) comprises a second connection member (32) and a second fastener (31) for fastening the second joint; The first connecting member (22) and the second connecting member (32) are kept in contact with each other by the pressing force applied by the first fastening member (21) and the second fastening member (31), so that the first joint and the second joint are connected; It also includes an insulating shell (40), wherein the contacting parts of the first connecting member (22) and the second connecting member (32) are both embedded in the insulating shell (40); The first connecting member (22) comprises a first main body and an anode structure (221), wherein the anode structure (221) is connected to the first main body and is used for contact and conduction; The second connecting member (32) comprises a second main body and a cathode structure (321), wherein the cathode structure (321) is connected to the second main body and is used to contact and conduct with the anode structure (221); The anode structure (221) and the cathode structure (321) are both located in the insulating shell (40), the first body is fixedly connected to the insulating shell (40), and the second body is fixedly connected to the insulating shell (40); The first body has a first cavity, the anode structure (221) is movably arranged on the first body, and the first body is deformed when subjected to the pressing force of the first fastener, so that the pressure in the first cavity increases and the anode structure (221) is pushed out; The second body has a second cavity, the cathode structure (321) is movably arranged on the second body, and the second body is deformed when subjected to the pressing force of the second fastener (31), so that the pressure in the second cavity increases and the cathode structure (321) is pushed out; When the first joint and / or the second joint is loosened, the first connecting member and the second connecting member are no longer in contact with each other to achieve automatic disconnection.

10. The connecting terminal according to claim 9, characterized in that: The first main body is provided with a first through hole, and the first fastener (21) passes through the first through hole and cooperates with the first threaded hole on the insulating seat (10).

11. The connecting terminal according to claim 9, characterized in that: The second main body is provided with a second through hole, and the second fastener (31) passes through the second through hole and cooperates with the second threaded hole on the insulating seat (10).

12. The connecting terminal according to claim 9, characterized in that: A first gap (23) for accommodating the first joint is provided between the first fastener (21) and the first connecting member (22).

13. The connecting terminal according to claim 9, characterized in that: The first body is an arc-shaped conductive sheet structure with an opening.

14. The connecting terminal according to claim 9, characterized in that: The second body is an arc-shaped conductive sheet structure with an opening.

15. The connecting terminal according to claim 9, characterized in that: The first cavity is filled with an inert gas.

16. The connecting terminal according to claim 9, characterized in that: The second cavity is filled with an inert gas.

17. An electrical device, characterized in that: The invention comprises the connecting terminal according to any one of claims 1 to 8 or the connecting terminal according to any one of claims 9 to 16.

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