阅读说明：本技术 一种易插接的感温变色二次接线端子 (Temperature sensing secondary binding post that discolours that easily inserts ) 是由 邓德茂 金基伟 王开波 胡兵轩 代运滔 周龙兴 黄岗 毛杰 代启璨 包义钊 覃禹 于 2020-04-16 设计创作，主要内容包括：本发明公开了一种易插接的感温变色二次接线端子,包括接线端子,包括壳体、与所述壳体插接的插头、位于所述插头内的线缆、与所述线缆连接的连接件；插接单元,包括位于所述壳体内的卡接座、位于所述卡接座内的滑块、与所述滑块抵触的卡扣,所述卡扣连接在所述插头外侧；本装置二次接线端子的连接或断开只需简单的按压即可,连接时按压进入,断开时稍用力按压下便会弹出,使二次接线端子的接线更加可靠安全,接入时,将插头按入壳体内,断路时,轻按插头即可拔出,方便快捷,在端子温度过高有危险时能够迅速察觉变色并断开端子的连接,能够及时发现潜在的电流开路等隐患,避免保护电流互感器等设备因开路而损坏,进而确保二次设备的可靠运行。(The invention discloses an easy-to-plug thermochromic secondary wiring terminal which comprises a wiring terminal, a temperature sensing and color changing secondary wiring terminal and a temperature sensing and color changing secondary wiring terminal, wherein the wiring terminal comprises a shell, a plug, a cable and a connecting piece, the plug is plugged into the shell, the cable is positioned in the plug, and the connecting piece is connected with the cable; the plug-in unit comprises a clamping seat positioned in the shell, a sliding block positioned in the clamping seat and a buckle abutted against the sliding block, and the buckle is connected to the outer side of the plug; this device secondary binding post's connection or disconnection only need simple press can, press the entering during connection, just can pop out according to pressing down slightly hard during the disconnection, make secondary binding post's wiring more reliable safety, during the access, press the plug into the casing, when opening circuit, gently press the plug and can extract, convenient and fast, can discover the connection of discolouring and disconnection terminal rapidly when terminal high temperature is dangerous, can in time discover hidden danger such as latent electric current opens a way, avoid equipment such as protective current transformer to damage because of opening a way, and then ensure secondary equipment's reliable operation.)

1. The utility model provides an easy temperature sensing of pegging graft secondary binding post that discolours which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the wiring terminal (100) comprises a shell (101), a plug (102) plugged with the shell (101), a cable (103) positioned in the plug (102), and a connecting piece (104) connected with the cable (103);

the plug-in unit (200) comprises a clamping seat (201) positioned in the shell (101), a sliding block (202) positioned in the clamping seat (201), and a buckle (203) abutted against the sliding block (202), wherein the buckle (203) is connected to the outer side of the plug (102).

2. The easy-to-plug thermochromic secondary connection terminal of claim 1, wherein: the shell (101) comprises an upper shell (101a) and a lower shell (101b), a containing groove (M) is formed between contact surfaces of the upper shell (101a) and the lower shell (101b), the clamping seat (201) is arranged in the containing groove (M), and the upper shell (101a) is connected with the lower shell (101b) through a bolt (105).

3. The easy-to-plug thermochromic secondary connection terminal of claim 1 or 2, wherein: the clamping seat (201) is provided with a sliding groove (201a) and a first spring seat (201b), the sliding block (202) is placed in the sliding groove (201a), the sliding block (202) is provided with a second spring seat (202a), and the first spring seat (201b) is connected with the second spring seat (202a) through a spring (204).

4. The easy-to-plug thermochromic secondary connection terminal of claim 3, wherein: the joint seat (201) is further provided with a hinge hole (201c), the sliding block (202) is provided with a positioning groove (202b), the hinge hole (201c) is connected with a connecting rod (205) between the positioning grooves (202b), one end of the connecting rod (205) rotates around the hinge hole (201c), and the other end of the connecting rod slides in the positioning groove (202 b).

5. The easy-to-plug thermochromic secondary connection terminal of claim 4, wherein: a limiting block (202c) is arranged in the middle of the positioning groove (202b), a concave surface (202c-1) is arranged at one end, away from the hinge hole (201c), of the limiting block (202c), and a V-shaped surface (202c-2) is arranged at one end, close to the hinge hole (201c), of the limiting block (202 c);

a first groove (202b-1), a second groove (202b-4), a third groove (202b-3), a fourth groove (202b-4), a fifth groove (202b-5) and a sixth groove (202b-6) are sequentially arranged between the limiting block (202c) and the positioning groove (202b), the depth of the first groove (202b-1) is greater than that of the second groove (202b-4), the first groove (202b-1) is smoothly connected with the second groove (202b-4), the depth of the second groove (202b-4) is less than that of the third groove (202b-3), a step is formed between the second groove (202b-4) and the third groove (202b-3), and the depth of the third groove (202b-3) is less than that of the fourth groove (202b-4), a step is formed between the third groove (202b-3) and the fourth groove (202b-4), the depth of the fourth groove (202b-4) is less than that of the fifth groove (202b-5), the step is formed between the fourth groove (202b-4) and the fifth groove (202b-5), the depth of the fifth groove (202b-5) is greater than that of the sixth groove (202b-6), the fifth groove (202b-5) is smoothly connected with the sixth groove (202b-6), the depth of the sixth groove (202b-6) is less than that of the first groove (202b-1), and the step is formed between the sixth groove (202b-6) and the first groove (202 b-1).

6. The easy-to-plug thermochromic secondary connection terminal of claim 5, wherein: the connecting rod (205) comprises a first end (205a) and a second end (205b), the first end (205a) is fixed in the hinge hole (201c), and the second end (205b) sequentially slides along the first groove (202b-1), the second groove (202b-4), the third groove (202b-3), the fourth groove (202b-4), the fifth groove (202b-5) and the sixth groove (202 b-6).

7. The easy-to-plug thermochromic secondary connection terminal of claim 6, wherein: the sliding block (202) is also provided with a first inclined surface (202d), and the corresponding buckle (203) is provided with a second inclined surface (203 a); the sliding block (202) is also provided with an elastic hook (202e), and the corresponding buckle (203) is provided with a clamping groove (203 b).

8. The easy-to-plug thermochromic secondary connection terminal of claim 7, wherein: the connecting piece (104) comprises a cone (104a), an elastic piece (104b) connected with the cone (104a), and a terminal (104c) connected with the elastic piece (104b), and the cable (103) forms a current path with the cone (104a), the elastic piece (104b) and the terminal (104 c).

9. The easy-to-plug thermochromic secondary connection terminal of any one of claims 1, 4 to 8, wherein: the plug-in unit (200) is at least provided with a pair of plug-in units and symmetrically arranged in the wiring terminal (100).

10. The easy-to-plug thermochromic secondary connection terminal of claim 9, wherein: the surface of the shell (101) is wrapped with temperature-sensitive variable color powder (106).

Technical Field

The invention relates to the field of electric power safety, in particular to a temperature-sensing color-changing secondary wiring terminal easy to plug.

Background

The secondary wiring terminal is widely applied to the transformer substation. The operation condition of the terminal is generally healthy, and the terminal is only required to be subjected to periodical appearance inspection, dust removal, temperature detection and other works in daily life. The connecting terminal is an important component in the electrical industry, plays an irreplaceable and non-negligible role, and is particularly important in design because engineering technicians firstly check the connector when overhauling the connector, namely, the terminal. The connecting terminal is used for conveniently connecting the wires, and is actually a section of metal sheet sealed in insulating plastic, both ends of the metal sheet are provided with holes for inserting the wires, and screws are used for fastening or loosening, for example, two wires are connected at times and disconnected at times, and then the two wires can be connected by using the terminal and disconnected at any time without welding or winding the two wires together, so that convenience and rapidness are realized. However, the terminal may generate heat due to loose wiring and the like, and the terminal can be burnt seriously, so that a secondary circuit is interrupted, and the operation of secondary equipment is threatened. Such heat generation defects occur relatively frequently at the current terminals. In order to find the defect of terminal heating in time, a common method is to regularly use an infrared imager or a laser thermometer to perform temperature patrol on the terminal. The method needs special instruments for assistance, is inconvenient for finding potential defects in time in daily life, needs corresponding tools and time for operation when the wiring terminal needs to be disconnected due to the fact that most wiring is carried out in a welding or bolt mode after temperature abnormity is found, and is tedious in steps and long in time consumption.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.

Therefore, the technical problems to be solved by the invention are that the operation is complicated, the time consumption is long, the safety is poor, and the potential defects are not convenient to find in time in daily life when the secondary wiring terminal is disconnected in the prior art.

In order to solve the technical problems, the invention provides the following technical scheme: an easy-to-plug thermochromic secondary wiring terminal comprises a wiring terminal body, a plug, a cable and a connecting piece, wherein the plug is plugged into the shell body; the plug-in unit comprises a clamping seat positioned in the shell, a sliding block positioned in the clamping seat and a buckle abutted against the sliding block, wherein the buckle is connected to the outer side of the plug.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the shell comprises an upper shell and a lower shell, a containing groove M is formed between the contact surfaces of the upper shell and the lower shell, the clamping seat is arranged in the containing groove, and the upper shell is connected with the lower shell through a bolt.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the joint seat is provided with spout, first spring holder, the slider is placed in the spout, the slider is provided with the second spring holder, pass through spring coupling between first spring holder and the second spring holder.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the joint seat still is provided with the hinge hole, the slider is provided with the constant head tank, the hinge hole with be connected with the connecting rod between the constant head tank, connecting rod one end rotates around the hinge hole, and the other end slides in the constant head tank.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: a limiting block is arranged in the middle of the positioning groove, one end, far away from the hinge hole, of the limiting block is a concave surface, and one end, close to the hinge hole, of the limiting block is a V-shaped surface; the stopper with include first groove, second groove, third groove, fourth groove, fifth groove and sixth groove in proper order between the constant head tank, the degree of depth in first groove is greater than the degree of depth in second groove, first groove with second groove smooth connection, the degree of depth in second groove is less than the degree of depth in third groove, form the ladder between second groove and the third groove, the degree of depth in third groove is less than the degree of depth in fourth groove, form the ladder between third groove and the fourth groove, the degree of depth in fourth groove is less than the fifth groove, form the ladder between fourth groove and the fifth groove, the degree of depth in fifth groove is greater than the degree of depth in sixth groove, fifth groove and sixth groove smooth connection, the degree of depth in sixth groove is less than the degree of depth in first groove, form the ladder between sixth groove and the first groove.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the connecting rod includes first end and second end, first end is fixed in the hinge hole, the second end slides along first groove, second groove, third groove, fourth groove, fifth groove and sixth groove in proper order.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the sliding block is also provided with a first inclined surface, and the corresponding buckle is provided with a second inclined surface; the sliding block is also provided with an elastic clamping hook, and the corresponding clamping buckle is provided with a clamping groove.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the connecting piece comprises a cone, an elastic piece connected with the cone and a terminal connected with the elastic piece, and the cable, the cone, the elastic piece and the terminal form a current path.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the plug-in unit is provided with a pair of and symmetry are placed at least in the binding post.

As a preferable scheme of the easy-to-insert thermochromic secondary terminal, the invention comprises the following steps: the surface of the shell is wrapped with temperature-sensitive color-changing powder.

The invention has the beneficial effects that: through the grafting unit that sets up, this device secondary binding post's connection or disconnection only need simple press can, press the entering during connection, just can pop out according to pressing down slightly hard during the disconnection, the structure is ingenious, make secondary binding post's wiring more reliable safety, during the access, press into the plug in the casing, when opening circuit, gently press the plug and can extract, convenient and fast, can discover rapidly when terminal high temperature is dangerous that the terminal discolours and breaks off terminal's connection, can in time discover hidden danger such as latent electric current opens a way, avoid equipment such as protective current transformer to damage because of opening a way, and then ensure the reliable operation of a secondary equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic structural view of an easy-to-insert thermochromic secondary terminal according to an embodiment of the invention;

fig. 2 is a schematic structural view illustrating a developed housing of a thermochromic secondary terminal easy to insert according to an embodiment of the present invention;

fig. 3 is a front view of an easy-to-plug thermochromic secondary terminal according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an insertion unit in an easy-to-insert thermochromic secondary terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a clamping seat and a sliding block in the easy-to-insert thermochromic secondary terminal provided in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a slider in the easy-to-insert thermochromic secondary terminal according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an insertion process of the easy-to-insert thermochromic secondary terminal according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.