Torque visualization wiring structure assembly and electrical equipment

Abstract

The invention provides a torque visualization wiring structure assembly and electrical equipment. The torque visualization wiring structure assembly comprises an insulation base body, a conducting bar, a fastening piece and an elastic piece. A torque indicating part is formed on the side wall of the assembling cavity in the insulating base body, and the wiring terminal can extend into the assembling cavity in the direction perpendicular to the front-back direction; the conducting bar is fixed in the insulating substrate, and a first connecting plate of the conducting bar is arranged in the assembling cavity; the fastener is connected with a fastening hole formed in the rear side wall of the assembly cavity; the elastic piece is elastically supported between the front side wall of the assembly cavity and the wiring terminal; when the fastening piece goes deep into the fastening hole, the elastic piece is compressed in the front-back direction and longitudinally deforms in the direction perpendicular to the front-back direction, and torque state information displayed by the torque indicating part can be changed through longitudinal deformation. According to the method, other torque testing equipment is not needed, visualization of the torque of the fastener is achieved in the assembling process, the assembling and debugging process of wiring is effectively shortened, and the torque control of the fastener is more visual and simpler.

Description

Technical Field

[0001] The invention belongs to the technical field of wiring structures, and in particular relates to a torque visualization wiring structure assembly and electrical equipment. Background Art

[0002] Electrical connection components are an important part of the power distribution system, among which the use of conductive bars is indispensable. The conductive bars can not only fix the wiring path and simplify the internal wiring structure of the module, but also fix the wiring terminals on the external cables through threaded fasteners, making external wiring more time-saving and labor-saving.

[0003] The existing wiring terminals and conductive bars are often directly fixed by threaded fasteners. During the screwing process of the threaded fasteners, the torque of the threaded fasteners needs to be strictly controlled, and the torque cannot be too large or too small. If the torque is too large, the threaded fasteners will be overloaded, causing the threaded fasteners to break, resulting in heavy equipment load and accelerated aging; if the torque is too small, the threaded fasteners will easily become loose, causing increased contact resistance and heat generation, resulting in serious consequences. The existing solution is generally to use torque testing equipment to test the torque of the threaded fasteners after assembly, and adjust the torque of the threaded fasteners according to the test results. This results in a long assembly cycle and affects the overall assembly and maintenance efficiency of electrical equipment. Summary of the invention

[0004] The embodiments of the present invention provide a torque visualized wiring structure assembly and electrical equipment, aiming to solve the problem that the torque of threaded fasteners is difficult to control when connecting existing wiring terminals and conductive bars.

[0005] To achieve the above object, the technical solution adopted by the present invention is: In a first aspect, an embodiment of the present invention provides a torque visualization wiring structure assembly, comprising: An insulating substrate is formed with an assembly cavity, a side wall of the assembly cavity is formed with a torque indicating portion, and the connection terminal can extend into the assembly cavity in a direction perpendicular to the front-rear direction; A conductive bar is fixed in the insulating base, a first connecting plate of the conductive bar is placed in the assembly cavity, a plate surface of the first connecting plate is perpendicular to the front-back direction, and the wiring terminal can be in contact with the first connecting plate; A fastener, which penetrates into the assembly cavity from the front side of the assembly cavity and is connected with a fastening hole provided on the rear side wall of the assembly cavity; An elastic member is placed in the assembly cavity and elastically supported between the front side wall of the assembly cavity and the terminal; as the fastener penetrates into the fastening hole, the elastic member is compressed in the front-to-back direction and also undergoes longitudinal deformation in a direction perpendicular to the front-to-back direction, and the longitudinal deformation can change the torque state information displayed by the torque indicating portion.

[0006] In combination with the first aspect, in a possible implementation, a display layer is provided on the elastic member, the torque indicating portion is a transparent window, and the longitudinal deformation can change the position of the display layer in a direction perpendicular to the front-to-back direction so that the display layer is exposed to the transparent window.

[0007] In some embodiments, the display layer has a plurality of display areas arranged side by side, and each display area corresponds to different torque state information.

[0008] In combination with the first aspect, in a possible implementation, a trigger portion is provided on the elastic member, the torque indicating portion is an electrically controlled indicating unit, and the longitudinal deformation can change the position of the trigger portion in a direction perpendicular to the front-to-back direction so that the trigger portion triggers the torque indicating portion.

[0009] In some embodiments, the elastic member is a U-shaped component, which includes a front contact arm, an arc-shaped connecting section and a rear contact arm connected sequentially from front to back, the front contact arm can abut against the front side wall of the assembly cavity, and the rear contact arm can abut against the terminal; the display layer is provided on the outer side of the arc-shaped connecting section.

[0010] In some embodiments, the torque indicating portion is disposed on a front side wall of the assembly cavity.

[0011] In some embodiments, the rear contact arm is a wave-shaped plate, and the wave crest of the rear contact arm can abut against the connecting terminal.

[0012] In combination with the first aspect, in a possible implementation manner, the elastic member is provided with a through hole for the fastener to pass through.

[0013] In some embodiments, a guide ring is provided on the outer periphery of the through hole, and the guide ring can limit the displacement of the fastener in a direction perpendicular to the front-rear direction.

[0014] Compared with the prior art, the solution shown in the embodiment of the present application is that when wiring, the insulating substrate, the conductive bar and the elastic member are first assembled into one, and then the wiring terminal is extended into the assembly cavity, and then the fastener is aligned and extended into the fastening hole; in the process of the fastener extending into the fastening hole, the torque change of the fastener prompts the fastener to squeeze the elastic member, which not only compresses the elastic member in the front-to-back direction to provide an extrusion force on the wiring terminal to ensure effective contact between the wiring terminal and the conductive bar, but also causes the elastic member to undergo longitudinal deformation in a direction perpendicular to the front-to-back direction. The longitudinal deformation can change the torque status information displayed by the torque indicating part. If the torque status information on the torque indicating part shows that the torque is appropriate, stop screwing the fastener. At this time, the torque of the fastener is in a state that meets the assembly standard. If the torque status information on the torque indicating part is in an inappropriate state, continue to tighten or loosen the fastener appropriately. By setting up a torque indicator, the present application realizes visualization of the fastener torque during the assembly process without the need for other torque testing equipment. The operator can determine whether the torque of the fastener is appropriate by directly observing the state changes of the torque indicator with the naked eye, thereby realizing the integration of the assembly process and the debugging process, effectively shortening the assembly and debugging process of wiring, and making the fastener torque control more intuitive and simpler.

[0015] In a second aspect, an embodiment of the present invention further provides an electrical device, comprising the above-mentioned torque visualization wiring structure assembly.

[0016] Compared with the prior art, the solution shown in the embodiment of the present application realizes visualization of the torque of the fastener during the assembly process by adopting the above-mentioned torque visualization wiring structure assembly, without the aid of other torque testing equipment. The operator can judge whether the torque of the fastener is appropriate by directly observing the state change of the torque indicator part with the naked eye, thereby realizing the integration of the assembly process and the debugging process, effectively shortening the assembly and debugging process of the wiring, making the fastener torque control more intuitive and simpler, effectively shortening the assembly cycle of the electrical equipment, and improving the overall assembly and maintenance efficiency of the electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An assembly stereogram of a torque visualization wiring structure assembly and wiring terminals provided in an embodiment of the present invention; Figure 2 An assembly cross-sectional view of a torque visualization wiring structure assembly and a wiring terminal provided in an embodiment of the present invention; Figure 3 A schematic diagram of the assembly process of the torque visualization wiring structure assembly and the wiring terminal provided in an embodiment of the present invention; Figure 4 A cross-sectional view of a torque visualization wiring structure assembly provided by an embodiment of the present invention; Figure 5It is a side view of the assembly of the conductive bar, the fastener and the elastic member used in the embodiment of the present invention; Figure 6 A three-dimensional diagram of an elastic member used in an embodiment of the present invention; Description of reference numerals: 1. Insulating substrate; 101. Assembly cavity; 102. Torque indicating part; 103. Fastening hole; 2. Conductive bar; 210. First connecting plate; 220. Second connecting plate; 3. Fastener; 4. Elastic member; 401. Through hole; 410. Guide ring; 420. Front contact arm; 430. Arc-shaped connecting section; 440. Rear contact arm; 441. Contact arm crest; 5. Wiring terminal; 6. Display layer. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0020] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0021] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0022] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0023] Please also read Figures 1 to 5 , the torque visualization wiring structure assembly provided by the present invention is now described. The torque visualization wiring structure assembly includes an insulating substrate 1, a conductive bar 2, a fastener 3 and an elastic member 4; an assembly cavity 101 is formed in the insulating substrate 1, and a torque indicating portion 102 is formed on the side wall of the assembly cavity 101, and the wiring terminal 5 can extend into the assembly cavity 101 in a direction perpendicular to the front-to-back direction; the conductive bar 2 is fixed in the insulating substrate 1, and the first connecting plate 210 of the conductive bar 2 is placed in the assembly cavity 101, and the plate surface of the first connecting plate 210 is perpendicular to the front-to-back direction, and the wiring terminal 5 can be connected to the first connecting plate 210 The fastener 3 penetrates the assembly cavity 101 from the front side of the assembly cavity 101 and is connected to the fastening hole 103 provided on the rear side wall of the assembly cavity 101; the elastic member 4 is placed in the assembly cavity 101 and elastically supported between the front side wall of the assembly cavity 101 and the terminal 5; as the fastener 3 penetrates into the fastening hole 103 (i.e., the degree of fastening is deepened), the elastic member 4 is compressed in the front-to-back direction and also undergoes longitudinal deformation in a direction perpendicular to the front-to-back direction, and the longitudinal deformation can change the torque state information displayed by the torque indicating part 102. Among them, the terminal 5 is located in front of the first connecting plate 210 and is adjacent to the first connecting plate 210; the elastic member 4 is supported between the front side wall of the assembly cavity 101 and the front side of the terminal 5.

[0024] In this embodiment, the implementation of the conductive bar 2 includes but is not limited to a copper bar, and any material that can meet the requirements of conductive performance and cost of use can be used. The implementation of the insulating substrate 1 includes but is not limited to an insulating plastic substrate, an insulating rubber substrate, etc., which can meet the insulation performance requirements and have a certain rigidity to meet the assembly support requirements of components such as the conductive bar 2, the fastener 3, and the elastic member 4. The fastener 3 can be an insulating component or a conductive component (such as a stainless steel component), which is not limited here.

[0025] In this embodiment, the fastener 3 is a threaded fastener 3, and the fastening hole 103 is correspondingly set as a threaded hole. The assembly and fastening function of the fastener 3 is achieved by screwing the fastener 3, which will affect the size of the assembly force between the terminal 5 and the first connecting plate 210, thereby affecting the effectiveness of the conductive contact between the terminal 5 and the first connecting plate 210.

[0026] In this embodiment, the shape of the insulating substrate 1 includes but is not limited to a cube, a cuboid, a sphere, etc., as long as it can meet the assembly requirements with the wiring terminal 5 and the substrate conductive unit (such as a circuit board).

[0027] Compared with the prior art, the torque visualized wiring structure assembly provided in the present embodiment is as follows: when wiring, the insulating substrate 1, the conductive bar 2 and the elastic member 4 are first assembled into one body, and then the wiring terminal 5 is inserted into the assembly cavity 101, and then the fastener 3 is aligned and inserted into the fastening hole 103; in the process of the fastener 3 inserting into the fastening hole 103, the torque change of the fastener 3 prompts the fastener 3 to squeeze the elastic member 4, which not only compresses the elastic member 4 in the front-to-back direction, provides a squeezing force on the wiring terminal 5 to ensure effective contact between the wiring terminal 5 and the conductive bar 2, but also causes the elastic member 4 to deform longitudinally in a direction perpendicular to the front-to-back direction. The longitudinal deformation can change the torque state information displayed by the torque indicating part 102. If the torque state information on the torque indicating part 102 shows that the torque is appropriate, the fastener 3 is stopped from being screwed on. At this time, the torque of the fastener 3 is in a state that meets the assembly standard. If the torque state information on the torque indicating part 102 is an inappropriate state, the fastener 3 is continued to be tightened or loosened appropriately. By setting the torque indicating part 102, this embodiment does not need to rely on other torque testing equipment, and realizes the visualization of the torque of the fastener 3 during the assembly process. The operator can judge whether the torque of the fastener 3 is appropriate by directly observing the state change of the torque indicating part 102 with the naked eye, thereby realizing the integration of the assembly process and the debugging process, effectively shortening the assembly and debugging process of the wiring, and making the torque control of the fastener 3 more intuitive and simpler.

[0028] In some embodiments where the connection terminal 5 is limited in a direction perpendicular to the front-rear direction, the connection terminal 5 can be fixed to the first connection plate 210 by the extrusion force of the elastic member 4, so that the fastener 3 may not penetrate the connection terminal 5 and the first connection plate 210 at the same time. Of course, such a setting method requires a large friction force to be generated between the connection terminal 5 and the elastic member 4 to prevent the connection terminal 5 from moving in a direction perpendicular to the front-rear direction; in order to achieve a large friction force, an elastic damping layer may be provided on the rear side of the elastic member 4.

[0029] In other embodiments where the connection terminal 5 is limited in a direction perpendicular to the front-rear direction, the connection terminal 5 can be fixed to the first connection plate 210 by limiting the position of the protrusion of the first connection plate 210, so that the fastener 3 may not penetrate the connection terminal 5 and the first connection plate 210 at the same time. An elastic limiting structure for limiting the connection terminal 5 in the insertion direction is provided between the first connection plate 210 and the connection terminal 5. For example, an embodiment where the connection terminal 5 is inserted into the assembly cavity 101 from top to bottom is used as an example. Spherical protrusions are provided on both sides of the first connection plate 210, and limiting grooves are provided on both side edges of the connection terminal 5. During the insertion of the connection terminal 5, the spherical protrusions are tightly abutted against the two side edges of the connection terminal 5. After the connection terminal 5 is inserted into place, the spherical protrusions are stuck in the limiting grooves and will not easily fall out upward without external force.

[0030] In some other embodiments, the connection terminal 5 is limited in a direction perpendicular to the front-rear direction. Figure 2 and Figure 3 , via holes corresponding to the fastening holes 103 are respectively provided on the wiring terminal 5 and the first connecting plate 210, and the fastener 3 passes through the via holes on the wiring terminal 5 and the via holes on the first connecting plate 210 in sequence, and the position is limited by the fastener 3. This embodiment also realizes the integration of fastening and limiting functions, and the structure is simpler and more compact.

[0031] In some specific embodiments of the conductive bar 2, see Figures 1 to 5 In addition to the first connecting plate 210, the conductive bar 2 also has a second connecting plate 220. The first connecting plate 210 is used to connect with the wiring terminal 5. One end of the second connecting plate 220 extends out of the insulating base 1 to be used for conductive connection with the substrate conductive unit such as a circuit board; wherein the specific connection method between the second circuit board and the substrate conductive unit includes but is not limited to welding, connection through a threaded connector, etc. In this embodiment, by setting the insulating base 1, an electrical connection end (first connecting plate 210) of the conductive bar 2 connected to the wiring terminal 5 is set in the assembly cavity 101 of the insulating base 1, so that the electrical connection end (first connecting plate 210) of the conductive bar 2 connected to the wiring terminal 5 and the end (exposed end of the second connecting plate 220) connected to the substrate conductive unit are isolated, and isolation protection between the two electrical connection ends is achieved, and there is no need to set an excessive safety protection example between the two electrical connection ends, which is conducive to shortening the distance between the two electrical connection ends, thereby improving the overall structural compactness of the torque visualization wiring structure assembly.

[0032] Based on this, the specific adaptation method of the insulating substrate 1 and the conductive bar 2 is exemplified as follows: 1-1), through secondary injection molding and other processes, the insulating base 1 is wrapped around the outer periphery of the second connecting plate 220, and the insulating base 1 and the second connecting plate 220 are fixed as a whole, and the power connection end of the second connecting plate 220 is exposed to achieve electrical connection with the base conductive unit. In this way, the connection area between the insulating base 1 and the conductive bar 2 is larger, and the connection reliability between the two is better.

[0033] 1-2), a fixed channel is provided inside the insulating base 1, and the second connecting plate 220 is inserted into the fixed channel by interference fit to achieve a fixed connection between the conductive bar 2 and the insulating base 1.

[0034] 1-3), an installation channel is provided inside the insulating base 1, and the second connecting plate 220 is inserted into the installation channel. There is a certain gap between the installation channel and the second connecting plate 220. By injecting glue into the gap, the conductive bar 2 can be fixedly connected to the insulating base 1 after the glue is cured.

[0035] In addition, based on the above-mentioned adaptation method of the insulating substrate 1 and the conductive bar 2, the adaptation methods between the first connecting plate 210 and the second connecting plate 220 include but are not limited to the following: 2-1), the first connecting plate 210 and the second connecting plate 220 are both flat plates, and the two are L-shaped. The second connecting plate 220 passes through the top of the insulating base 1 in the front-to-back direction, and its electrical connection end extends backward and is located at the rear side of the insulating base 1, such as Figures 1 to 5 As shown; the assembly cavity 101 is arranged at the front of the insulating substrate 1, and the first connecting plate 210 extends downward and is placed in the assembly cavity 101.

[0036] 2-2), the first connecting plate 210 is a straight plate, and the second connecting plate 220 is an L-shaped plate, and the two constitute a Z-shaped conductive bar 2; the second connecting plate 220 passes through the top of the insulating base 1 in the front-to-back direction, and its power connection end extends upward, and the power connection end is located above the insulating base 1; the assembly cavity 101 is set at the front part of the insulating base 1, and the first connecting plate 210 extends downward and is placed in the assembly cavity 101.

[0037] 2-3), the first connecting plate 210 is a straight plate, and the second connecting plate 220 is an L-shaped plate, and the two constitute a C-shaped conductive bar 2; the second connecting plate 220 passes through the top of the insulating base 1 in the front-to-back direction, and its power connection end extends downward, and the power connection end is located below the insulating base 1; the assembly cavity 101 is set at the front part of the insulating base 1, and the first connecting plate 210 extends downward and is placed in the assembly cavity 101.

[0038] It should be understood that the specific configuration of the conductive bar 2 can be flexibly set according to actual assembly requirements, and any conductive bar 2 that can meet the adaptation requirements of the insulating substrate 1 can be used, and they will not be listed one by one here.

[0039] In the first embodiment of realizing torque status information display, see Figures 1 to 6 , a display layer 6 is provided on the elastic member 4, and the torque indicating part 102 is a transparent window. The longitudinal deformation can change the position of the display layer 6 in a direction perpendicular to the front-back direction, so that the display layer 6 is exposed to the transparent window, thereby displaying different torque information. Among them, the display layer 6 is implemented in a manner including but not limited to color blocks, text, patterns, etc. Taking the color blocks as an example, the specific setting of the display layer 6 is exemplified as follows: a color block of a single color is provided on the display layer 6. When the torque of the fastener 3 is small or large, the color block is not in the display area of ​​the transparent window, or the transparent window cannot fully display the color block. When the torque of the fastener 3 is appropriate, the color block can be fully displayed in the transparent window. Therefore, the color block of the specified color fully displayed in the transparent window is the torque state information indicating that the torque is appropriate. In this way, the design of the display layer 6 and the torque indicating part 102 are simpler, and the information display is more intuitive and easy to understand.

[0040] More specifically, the transparent window may be realized by a hole provided on the side wall of the assembly cavity 101 , or a visible area covered by a transparent layer (eg, a glass layer, an acrylic layer, etc.) may be provided on the side wall of the assembly cavity 101 .

[0041] On the basis of the above embodiment, the display layer 6 has multiple display areas arranged side by side, and each display area corresponds to different torque state information. Taking the display layer 6 composed of color blocks as an example, the display area is formed by blocks of a single color, and the colors of different display areas are different. When the torque of the fastener 3 is appropriate, one of the blocks of a specified color can be fully displayed in the transparent window. When the torque of the fastener 3 is small or large, blocks of other colors are displayed in the transparent window, or the transparent window cannot fully display the block of the specified color. Therefore, the color block of the specified color fully displayed in the transparent window is the torque state information indicating that the torque is appropriate. Among them, the distribution path of multiple display areas is the movement path of the display layer 6 when the longitudinal deformation occurs.

[0042] In the second embodiment of realizing torque state information display, a trigger part is provided on the elastic member 4, and the torque indicating part 102 is an electrically controlled indicating unit. The longitudinal deformation can change the position of the trigger part in a direction perpendicular to the front-back direction, so that the trigger part triggers the torque indicating part 102. Among them, the information displayed by the indicating unit can be light information of different colors, light flashing information of different frequencies, text information or pattern information of different contents, different sound information, etc. The indicating unit has a trigger switch, and the trigger part can control the information emitted by the indicating unit by touching the trigger switch. In specific implementation, taking the displayed information as light information of different colors as an example, the indicating unit includes a light-emitting part and a trigger switch connected to each other. When the torque of the fastener 3 is small, the trigger part cannot touch the trigger switch, and the light-emitting part emits the initial color light (or does not emit light); as the longitudinal deformation continues to occur, the trigger part touches the trigger switch, and the light-emitting part emits a light of a specified color, prompting the operator that the current torque of the fastener 3 is appropriate. Once the light of the specified color is emitted, there is no need to deepen the tightening degree. It should be understood that the other information display methods are similar, and they are not listed one by one here.

[0043] More specifically, in order to provide a prompt for the situation where the torque of the fastener 3 is too large, the trigger switch is a toggle switch with three gears. When the torque of the fastener 3 is small, the trigger part cannot touch the trigger switch, the toggle button of the trigger switch is in the first gear, and the light-emitting part emits the initial color light (or does not emit light); as the longitudinal deformation continues to occur, the trigger part touches the trigger switch, the edge of the disc spring touches the toggle button, the toggle button is pushed to the second gear, and the light-emitting part emits a light of a specified color, prompting the operator that the current torque of the fastener 3 is appropriate; if the torque of the fastener 3 continues to increase, the edge of the disc spring pushes the toggle button to the third gear, and the light-emitting part emits another specified color light, warning the operator that the torque is too large.

[0044] In some embodiments, see Figures 4 to 6 The elastic member 4 is provided with a through hole 401 for the fastener 3 to pass through, so that the fastener 3 can not only achieve the fastening effect, but also limit the position of the elastic member 4 in the direction perpendicular to the front-to-back direction, thereby ensuring that the elastic member 4 provides a reliable extrusion force on the terminal 5; in addition, through this setting method, the limiting and fastening functions are integrated, and there is no need to occupy the space around the first connecting plate 210 to set the fastening hole 103, thereby achieving a compact design in the direction perpendicular to the front-to-back direction.

[0045] Based on the above embodiments, see Figures 4 to 6 A guide ring 410 is provided on the outer periphery of the through hole 401. The guide ring 410 can limit the displacement of the fastener 3 in a direction perpendicular to the front-rear direction. During the insertion process of the fastener 3, the fastener 3 is prevented from being deflected, which facilitates alignment with the fastening hole 103 and facilitates the smooth introduction of the fastener 3 into the fastening hole 103.

[0046] In order to achieve the extrusion of the elastic member 4 in the front-to-back direction, the adaptation method between the elastic member 4 and the insulating substrate 1 is exemplified as follows: 3-1), the elastic member 4 is a disc spring, and the two axial ends of the disc spring are respectively in contact with the front side wall of the assembly cavity 101 and the front side of the connecting terminal. The fastener 3 can penetrate the hollow area of ​​the disc spring. During the fastening process, the fastener 3 can also limit the disc spring in a direction perpendicular to the front and rear directions to avoid the position deviation of the disc spring and ensure that a reliable elastic extrusion force is provided to the connecting terminal 5.

[0047] In this adaptation mode, the hollow area of ​​the disc spring forms the aforementioned through hole 401, and a guide ring 410 can be set around the area. In addition, if a display layer 6 is set on the elastic member 4 of this adaptation mode, the display layer 6 is set at a position near the outer peripheral edge on the front side of the disc spring, and the transparent window is correspondingly set on the front side wall of the assembly cavity 101; if an electrically controlled unit is used, the trigger switch is set corresponding to the edge of the disc spring (that is, the edge of the disc spring forms the trigger part), and the disc spring can expand toward the periphery after being squeezed, and the switch is triggered by touching the edge.

[0048] 3-2), the elastic member 4 includes a main board and a plurality of elastic legs integrally connected to the main board, and the plurality of elastic legs are evenly and symmetrically distributed along the circumference of the main board; wherein the main board is a straight plate, which is in contact with the front side of the terminal block 5, and at this time, the plurality of elastic legs are inclined to extend forward, and the front end of the elastic legs is in contact with the front side wall of the assembly cavity 101, and, in the direction from back to front, the elastic legs are gradually inclined away from the central axis of the main board; or, the main board is a straight plate, which is in contact with the front side wall of the assembly cavity 101, and at this time, the plurality of elastic legs are inclined to extend backward, and the rear end of the elastic legs is in contact with the front side of the terminal block 5, and, in the direction from front to back, the elastic legs are gradually inclined away from the central axis of the main board. In this embodiment, as the degree of tightening of the elastic legs increases, the free ends slide in a direction perpendicular to the front-to-back direction, and the degree of inclination of each elastic leg gradually increases, thereby achieving elastic deformation.

[0049] In this adaptation mode, if the display layer 6 is provided on the elastic member 4 of this adaptation mode, when the front end of the elastic leg is a free end, the display layer 6 is provided on the front end surface of the elastic leg, and the transparent window is provided on the front side wall of the assembly cavity 101; when the rear end of the elastic leg is a free end, the display layer 6 is provided on the front side surface of the elastic leg near the rear end, and the transparent window is provided on the front side wall of the assembly cavity 101. If an electrically controlled unit is provided, the trigger switch is provided corresponding to the free end of the elastic leg (i.e., the free end of the elastic leg forms a trigger portion), and the free end of the elastic leg can expand outward after being squeezed, and the trigger switch is touched by the free end.

[0050] Based on adaptation method 3-2), a through hole 401 can be opened on the mainboard, and the fastener 3 passes through the through hole 401. During the fastening process, the fastener 3 can also limit the elastic part 4 in a direction perpendicular to the front and rear directions, thereby avoiding position displacement of the elastic part 4 and ensuring that a reliable elastic extrusion force is provided to the terminal 5.

[0051] 3-3), the elastic member 4 includes a main board and a plurality of elastic legs integrally connected to the main board, the plurality of elastic legs are evenly and symmetrically distributed along the circumference of the main board, and each leg is an arc-shaped leg, and the center of curvature of each leg is located on the side of the leg facing the central axis of the main board; wherein, the main board is a straight plate, which is in contact with the front side of the terminal 5, and at this time, the plurality of elastic legs extend forward, and the front end of the elastic legs abuts the front side wall of the assembly cavity 101; or, the main board is a straight plate, which is in contact with the front side wall of the assembly cavity 101, and at this time, the plurality of elastic legs extend backward, and the rear end of the elastic legs abuts the front side of the terminal 5. In this embodiment, as the degree of tightening increases, the degree of bending of each elastic leg gradually increases, thereby achieving elastic deformation.

[0052] This adaptation method is applicable to the scenario where an electronically controlled unit is used. In this case, the trigger switch corresponds to the area where the elastic leg is arched outward (that is, the arched end of the elastic leg forms the trigger portion). The degree of bending of the elastic leg gradually increases after being squeezed, and the outermost end of the arched area gradually moves outward, touching the trigger switch through the outermost end of the arched area.

[0053] Based on the adaptation method 3-3), a through hole 401 can be opened on the mainboard, and the fastener 3 passes through the through hole 401. During the fastening process, the fastener 3 can also limit the elastic member 4 in the direction perpendicular to the front and rear directions to avoid the position deviation of the elastic member 4 and ensure that a reliable elastic extrusion force is provided to the wiring terminal 5. In addition, the front ends of the multiple elastic legs can be separated from each other, and during the fastening process, the front ends of the elastic legs slide inward; or, the front ends of the various elastic legs are connected as one, and during the fastening process, the position of the integrally connected area remains fixed.

[0054] 3-4) See Figure 2 , Figures 4 to 6 The elastic member 4 is a U-shaped member, which includes a front contact arm 420, an arc-shaped connecting section 430 and a rear contact arm 440 connected in sequence from front to rear, the front contact arm 420 can abut against the front side wall of the assembly cavity 101, and the rear contact arm 440 can abut against the front side of the terminal 5. As the degree of tightening deepens, the bending degree of the arc-shaped connecting section 430 gradually increases, and the distance between the front contact arm 420 and the rear contact arm 440 decreases, thereby achieving elastic deformation.

[0055] In this adaptation method, if a display layer 6 (such as Figure 6 As shown), the display layer 6 is arranged on the outer side of the arc-shaped connecting section 430, and the transparent window is correspondingly arranged on the front side wall of the assembly cavity 101 as shown in FIG. Figures 1 to 3 If an electronically controlled unit is used, the trigger switch is arranged corresponding to the arched end of the arc-shaped connecting section 430 (that is, the arched end of the arc-shaped connecting section 430 forms a trigger portion), and the arched end of the arc-shaped connecting section 430 can gradually move outward after being squeezed, and touch the trigger switch through the arched end.

[0056] Based on the adaptation method 3-4), corresponding through holes 401 can be respectively opened on the front contact arm 420 and the rear contact arm 440 (such as Figure 6 As shown in the figure), the fastener 3 passes through the through hole 401 of the front contact arm 420 and the rear contact arm 440. During the fastening process, the fastener 3 can also limit the elastic member 4 in a direction perpendicular to the front and rear directions, thereby avoiding position deviation of the elastic member 4 and ensuring that a reliable elastic extrusion force is provided to the terminal 5.

[0057] In addition, based on adaptation method 3-4), see Figure 2 , Figure 4 and Figure 5 The rear contact arm 440 is a wavy plate extending perpendicularly to the front-to-back direction, and the rear side of the rear contact arm 440 abuts against the front side of the terminal 5. When the terminal 5 is not inserted into the assembly cavity 101, the gap between the crest of the rear contact arm 440 and the first connecting plate 210 is smaller than the thickness of the terminal 5, or there is no gap between the two; when the terminal 5 is inserted, the crest of the rear contact arm 440 (defined as the contact arm crest 441) can squeeze the terminal 5, and assist in pre-positioning the terminal 5; after the fastener 3 is inserted, as the degree of tightening deepens, the force provided by the rear contact arm 440 on the terminal 5 gradually increases until the tightening is completed.

[0058] On the basis that the rear contact arm 440 is a wavy plate, one of the wave crests of the rear contact arm 440 can abut against the outer peripheral edge of the terminal 5 to limit the displacement of the terminal 5 in the direction perpendicular to the front-to-back direction, and facilitate the alignment of the terminal 5 with the first connecting plate 210, especially when the fastener 3 sequentially penetrates the terminal 5 and the first connecting plate 210, the through hole on the terminal 5 can be better aligned with the through hole on the first connecting plate 210. If the elastic member 4 with a wavy or serrated structure is also used in other adaptation methods, some of the wave crest structures or tooth peak structures therein can also be set in this way, thereby reducing the difficulty of aligning the terminal 5 with the first connecting plate in the direction perpendicular to the front-to-back direction, and there is no need to set other additional limiting structures, the structure is simpler and more compact, and the assembly efficiency is higher.

[0059] 3-5), the elastic member 4 includes the elastic member 4 being a disc-shaped member having a plurality of concentrically distributed wavy protrusions, the front side of the wavy protrusion abuts against the front side wall of the assembly cavity 101, and the rear side of the wavy protrusion abuts against the front side of the terminal 5. As the degree of tightening deepens, the wavy protrusion is compressed, the degree of protrusion decreases, and elastic deformation is achieved.

[0060] In this adaptation mode, if the display layer 6 is provided on the elastic member 4 of this adaptation mode, the display layer 6 is provided on the front side of the elastic member 4. Since the overall deformation of the elastic member 4 is relatively uniform, the display layer 6 can be close to the edge of the elastic member 4 or located in the middle of the elastic member 4. The transparent window is provided on the front side wall of the assembly cavity 101. If an electrically controlled unit is provided, the trigger switch is provided corresponding to the outer peripheral edge of the elastic member 4, or an additional trigger protrusion is provided on the front side of the elastic member 4, and the trigger switch is touched by the outer peripheral edge of the elastic member 4 or the trigger protrusion (that is, the outer peripheral edge of the elastic member 4 or the trigger protrusion forms the trigger portion).

[0061] Based on adaptation method 3-5), a through hole 401 can be opened in the center of the elastic member 4, and the fastener 3 passes through the through hole 401. During the fastening process, the fastener 3 can also limit the elastic member 4 in a direction perpendicular to the front and rear directions to avoid position displacement of the elastic member 4 and ensure that a reliable elastic extrusion force is provided to the terminal 5.

[0062] 3-6), the elastic member 4 includes a main board and a plurality of elastic legs integrally connected to the main board, the plurality of elastic legs are radially distributed around the center of the main board, and the extension direction is perpendicular to the front and rear direction; each elastic leg is a wavy or sawtooth plate extending along its own long axis direction, the front side of the elastic leg abuts against the front side wall of the assembly cavity 101, and the rear side of the elastic leg abuts against the front side of the terminal 5. As the degree of tightening deepens, the elastic legs are compressed, the protrusion of the wavy structure or the sawtooth structure decreases, and elastic deformation is achieved.

[0063] In this adaptation mode, if the display layer 6 is provided on the elastic member 4 of this adaptation mode, the display layer 6 is provided on the front side of the elastic leg. Since the overall deformation of the elastic leg is relatively uniform, the display layer 6 can be close to the edge of the elastic leg or located in the middle of the elastic leg. The transparent window is correspondingly provided on the front side wall of the assembly cavity 101. If an electrically controlled unit is used, the trigger switch is provided corresponding to the free end of the elastic leg, or an additional trigger protrusion is provided on the front side of the elastic leg, and the trigger switch is touched by the free end of the elastic leg or the trigger protrusion (that is, the free end of the elastic leg or the trigger protrusion forms a trigger portion).

[0064] In some embodiments, the fastener 3 may be pre-connected to the insulating base 1 (i.e., pre-inserted into the assembly cavity 101), but not inserted into the fastening hole 103, so as to facilitate the subsequent insertion of the wiring terminal 5; if in accordance with the aforementioned adaptation methods 3-1) to 3-6), on the premise that a through hole 401 is opened on the elastic member 4, the fastener 3 may be at least partially located in the through hole 401, and the positions of the elastic member 4 and the fastener 3 are limited by the through hole 401, and the elastic member 4 and the insulating base 1 may have a pre-connected relationship or may not have a connected relationship. If the insulating base 1 and the fastener 3 are separated from each other in advance, then for the convenience of assembly, a pre-connected relationship is formed between the front part of the elastic member 4 and the insulating base 1, and the elastic member 4 does not need to be placed separately during the later assembly. Among them, the pre-connected relationship between the elastic member 4 and the insulating base 1 can be achieved by pre-bonding the two, or by realizing an integral connection between the two by secondary injection molding (such as Figure 2 and Figure 4 as shown).

[0065] In order to achieve the extrusion of the elastic member 4 in the front-to-back direction during the tightening process of the fastener 3, the following solutions are adopted: 4-1) See Figure 2 and Figure 4 The wall panel on the front side of the assembly cavity 101 is relatively thin (for example, 2 mm to 4 mm). After being squeezed by the protruding structure at the front end of the fastener 3, it can be deformed to a certain extent, and then squeeze the elastic member 4 backward as the protrusion at the front end of the fastener 3 moves.

[0066] 4-2), the wall plate on the front side of the assembly cavity 101 includes a frame-shaped main body and a movable part arranged in the middle of the main body. The main body is a rigid part and is fixedly connected to the main body of the insulating substrate 1. The movable part is a rigid part, and an elastic part that can be elastically deformed is connected between it and the main body. The fastener 3 penetrates into the assembly cavity 101 from the front side of the movable part. During the process of connecting and fastening the fastener 3 with the fastening hole 103, the protruding structure at the front end of the fastener 3 pushes the movable part to move backward, thereby squeezing the elastic part 4. Among them, the implementation method of the elastic part includes but is not limited to an elastic rubber layer arranged around the movable part, a plurality of tension springs arranged around the movable part, etc.; it should be understood that the elastic part needs to have a large rigidity to balance the fastening force of the fastener 3 and the movable distance of the movable part, to avoid the problem that the elastic part 4 is overly compressed due to the excessive flexibility of the movable part, and to maintain the reliability of the fastening of the fastener 3.

[0067] 4-3), the wall plate on the front side of the assembly cavity 101 includes a frame-shaped main body and an elastic deformation part arranged in the middle of the main body. The main body is a rigid part fixedly connected to the main body of the insulating substrate 1; the fastener 3 penetrates the assembly cavity 101 from the front side of the elastic deformation part. During the process of connecting and fastening the fastener 3 with the fastening hole 103, the protruding structure at the front end of the fastener 3 pushes the elastic deformation part to elastically deform backwards, thereby squeezing the elastic part 4. Among them, the implementation method of the elastic deformation part includes but is not limited to an elastic rubber layer.

[0068] 4-4), the middle part of the wall panel on the front side of the assembly cavity 101 is left hollow, and the fastener 3 directly extends into the assembly cavity 101 from the hollow. The protruding structure at the front end of the fastener 3 gradually approaches the hollow as the fastener 3 is tightened, and finally enters the hollow. The protruding structure directly contacts the elastic member 4 to achieve extrusion of the elastic member 4.

[0069] 4-5), the wall plate on the front side of the assembly cavity 101 includes a frame-shaped main body and a flexible shielding part arranged in the middle of the main body. The main body is a rigid part fixedly connected to the main body of the insulating substrate 1; the fastener 3 penetrates into the assembly cavity 101 from the front side of the flexible shielding part, and the flexible shielding part forms a shield between the fastener 3 and the main body to maintain the sealing of the front side of the assembly cavity 101; in the process of connecting and fastening the fastener 3 to the fastening hole 103, the flexible shielding part is deformed as the protruding structure at the front end of the fastener 3 moves, and the protruding part of the fastener 3 squeezes the elastic part 4. In this process, the flexible shielding part does not undergo elastic deformation, and the implementation method of the flexible shielding part includes but is not limited to plastic film, etc.

[0070] Based on the same inventive concept, an embodiment of the present application also provides an electrical device, including the above-mentioned torque visualization wiring structure assembly.

[0071] Compared with the prior art, the electrical equipment provided in this embodiment realizes visualization of the torque of the fastener 3 during the assembly process by adopting the above-mentioned torque visualization wiring structure assembly without the aid of other torque testing equipment. The operator can judge whether the torque of the fastener 3 is appropriate by directly observing the state change of the torque indicating part 102 with the naked eye, thereby realizing the integration of the assembly process and the debugging process, effectively shortening the assembly and debugging process of the wiring, making the torque control of the fastener 3 more intuitive and simpler, effectively shortening the assembly cycle of the electrical equipment, and improving the overall assembly and maintenance efficiency of the electrical equipment.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A torque visualization wiring structure assembly, characterized in that: include: An insulating base (1) is formed with an assembly cavity (101), a side wall of the assembly cavity (101) is formed with a torque indicating portion (102), and a connection terminal (5) can extend into the assembly cavity (101) in a direction perpendicular to the front-rear direction; A conductive bar (2) is fixed in the insulating base (1), a first connecting plate (210) of the conductive bar (2) is placed in the assembly cavity (101), a plate surface of the first connecting plate (210) is perpendicular to the front-rear direction, and the connecting terminal (5) can be in close contact with the first connecting plate (210); A fastener (3) is inserted into the assembly cavity (101) from the front side of the assembly cavity (101) and connected to a fastening hole (103) provided on the rear side wall of the assembly cavity (101); An elastic member (4) is disposed in the assembly cavity (101) and elastically supported between the front side wall of the assembly cavity (101) and the wiring terminal (5); as the fastener (3) penetrates into the fastening hole (103), the elastic member (4) is compressed in the front-to-back direction and also undergoes longitudinal deformation in a direction perpendicular to the front-to-back direction, and the longitudinal deformation can change the torque state information displayed by the torque indicating portion (102).

2. The torque visualization wiring structure assembly according to claim 1, characterized in that: A display layer (6) is provided on the elastic member (4), the torque indicating portion (102) is a transparent window, and the longitudinal deformation can change the position of the display layer (6) in a direction perpendicular to the front-rear direction so that the display layer (6) is exposed to the transparent window.

3. The torque visualization wiring structure assembly according to claim 2, characterized in that: The display layer (6) has a plurality of display areas arranged side by side, and each display area corresponds to different torque state information.

4. The torque visualization wiring structure assembly according to claim 1, characterized in that: The elastic member (4) is provided with a trigger portion, the torque indicating portion (102) is an electrically controlled indicating unit, and the longitudinal deformation can change the position of the trigger portion in a direction perpendicular to the front-rear direction so that the trigger portion triggers the torque indicating portion (102).

5. The torque visualization wiring structure assembly according to claim 2, characterized in that: The elastic member (4) is a U-shaped component, comprising a front contact arm (420), an arc-shaped connecting section (430) and a rear contact arm (440) connected in sequence from front to back, the front contact arm (420) being capable of abutting against the front side wall of the assembly cavity (101), and the rear contact arm (440) being capable of abutting against the connecting terminal (5); the display layer (6) is provided on the outer side of the arc-shaped connecting section (430).

6. The torque visualization wiring structure assembly according to claim 5, characterized in that: The torque indicating portion (102) is arranged on the front side wall of the assembly cavity (101).

7. The torque visualization wiring structure assembly according to claim 5, characterized in that: The rear contact arm (440) is a wave-shaped plate, and the wave crest of the rear contact arm (440) can abut against the connection terminal (5).

8. The torque visualization wiring structure assembly according to claim 1, characterized in that: The elastic member (4) is provided with a through hole (401) for the fastener (3) to pass through.

9. The torque visualization wiring structure assembly according to claim 8, characterized in that: A guide ring (410) is provided on the outer periphery of the through hole (401), and the guide ring (410) can limit the displacement of the fastener (3) in a direction perpendicular to the front-rear direction.

10. An electrical device, characterized in that: It comprises the torque visualization wiring structure assembly as described in any one of claims 1-9.

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