Wire pressing clamp, cable fixing assembly, electric appliance box and electric appliance equipment

Abstract

The utility model relates to a wire pressing clamp, a cable fixing assembly, an electric appliance box and electric appliance equipment, the wire pressing clamp comprises a wire pressing clamp main body and a cutting part, the cutting part is arranged on the outer surface of the wire pressing clamp main body in a protruding mode, and the cutting part comprises one or more cutting edges. According to the wire pressing clamp provided by the invention, the cutting part is arranged on the wire pressing clamp main body, and the cutting part comprises one or more cutting edges; when a cable is assembled, the wire passing plate on the wire passing ring can be directly cut through the cutting part on the wire pressing clamp, so that a wire passing hole matched with the diameter of the cable is formed in the wire passing ring. As the wire pressing clamp and the wire passing ring are usually matched for use, the storage areas are the same or adjacent. In the assembling process, a large amount of time does not need to be additionally spent in finding tools such as scissors or art knives in other storage areas or assembling stations to cut the wire passing ring, the hole opening efficiency of the wire passing hole of the wire passing ring can be improved, and then the assembling efficiency of the cable is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a wire crimping clamp, a cable fixing assembly, an electrical box, and an electrical equipment. Background Art

[0002] To install cables in an electrical box, they are often secured using cable clamps and wire loops. The clamps are primarily used to secure external wires (such as power cables) to the box, preventing them from moving inside. The wire loops are embedded in the box, allowing the cables to pass through a hole in the center of the wire loops.

[0003] In order to reduce the gap between the wire hole of the wire coil and the outer surface of the cable and improve the sealing performance of the electrical box, it is often necessary to open matching wire holes on the wire coil according to the wire diameter of the cable during assembly. The wire holes need to be cut using tools such as scissors or utility knives. Since the tools, wire crimping clamps and wire coils are stored in different areas, if the tools are not stored in a fixed location or are shared among various workstations, during the cable assembly process, it often takes a lot of time to find tools to cut the wire holes on the wire coils, resulting in low cable assembly efficiency. Utility Model Content

[0004] The present application provides a wire crimping clamp, a cable fixing assembly, an electrical box and an electrical device to solve the technical problem in the prior art that when assembling cables, a lot of time is required to find tools to cut the wire coils, resulting in low cable assembly efficiency.

[0005] In a first aspect, the present application provides a wire clamp, comprising:

[0006] Wire clamp body;

[0007] The cutting part is protrudingly arranged on the outer surface of the wire crimping clamp body, and the cutting part includes one or more cutting edges.

[0008] Optionally, the cutting portion includes a plurality of cutting edges, and the plurality of cutting edges are centrally symmetrically arranged on the outer surface of the wire crimping clamp body.

[0009] Optionally, the cutting edge includes a first edge facet and a second edge facet connected at an angle.

[0010] Optionally, the first blade surface and / or the second blade surface is an arc-shaped surface.

[0011] Optionally, a side of the cutting edge facing away from the wire clamp body has a pointed structure.

[0012] Optionally, the wire crimping clamp further includes a protective cover, which is detachably connected to the wire crimping clamp body, and the protective cover is arranged on the cutting portion.

[0013] Optionally, a first clamping portion is provided on the wire crimping clamp body, and a second clamping portion is provided on the protective cover, and the first clamping portion is clamped and connected with the second clamping portion.

[0014] Optionally, the protective cover has a relief portion matching the cutting portion.

[0015] In a second aspect, the present application provides a cable fixing assembly, comprising the wire crimping clamp provided in the first aspect of the present application, and also comprising a wire passing coil, the wire passing coil comprising a soft wire passing plate, and the cutting portion is used to cut the soft wire passing plate.

[0016] Optionally, a plurality of arc-shaped hollow grooves are provided on the soft wire-passing plate, and the plurality of arc-shaped hollow grooves are arranged in a ring shape on the soft wire-passing plate.

[0017] Optionally, in the circumferential direction of the arc-shaped hollow groove, the central angle corresponding to the arc length distance between two adjacent arc-shaped hollow grooves is smaller than the central angle corresponding to a single arc-shaped hollow groove.

[0018] Optionally, the soft wire-passing plate is provided with a plurality of cutting paths arranged in a concentric ring shape, and each cutting path includes a plurality of arc-shaped hollow grooves arranged in a ring shape.

[0019] Optionally, in the radial direction of the cutting path, the multiple arc-shaped hollow grooves in two adjacent cutting paths are circumferentially staggered.

[0020] Optionally, in the radial direction of the cutting path, the central angle corresponding to the single arc-shaped hollow groove located in the inner circle is greater than the central angle corresponding to the single arc-shaped hollow groove located in the outer circle.

[0021] Optionally, the cutting portion is provided with a first positioning portion, and the soft wire-passing plate is provided with a second positioning portion, and the first positioning portion and the second positioning portion are matched with each other.

[0022] In the third aspect, the present application provides an electrical box, including the cable fixing assembly provided in the second aspect of the present application, and also including a box body and a cable, the wire crimping clamp is arranged inside the box body, the wire passing coil is embedded in the side wall of the box body, and the cable passes through the wire crimping clamp and the soft wire passing plate in sequence.

[0023] Optionally, an opening is provided on the side wall of the box body, and the coil has a slot matched with the opening.

[0024] In a fourth aspect, the present application provides an electrical device, including the electrical box provided in the third aspect of the present application.

[0025] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0026] The wire crimping clamp provided in the embodiment of the present application is provided with a cutting portion on the wire crimping clamp body, and the cutting portion includes one or more cutting edges. When assembling the cable, the wire coil can be directly cut by the cutting portion on the wire crimping clamp to prepare a wire hole on the wire coil that matches the cable diameter. Since the wire crimping clamp and the wire coil are usually used in conjunction with each other, the storage areas are the same or adjacent. There is no need to spend a lot of time going to other storage areas or assembly stations to find tools such as scissors or utility knives to cut the wire coil, which can improve the efficiency of opening the hole for the wire coil and thus improve the assembly efficiency of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0030] Figure 1 Schematic diagram of the structure of the wire clamp provided in the embodiment of the present application Figure 1 ;

[0031] Figure 2 Provided in the embodiments of this application Figure 1 A magnified view of the local details;

[0032] Figure 3 Schematic diagram of the structure of the wire clamp provided in the embodiment of the present application Figure 2 ;

[0033] Figure 4 Provided in the embodiments of this application Figure 3 A magnified view of the local details;

[0034] Figure 5 Provided in the embodiments of this application Figure 4 A top view of

[0035] Figure 6 A front view of a cutting edge provided in an embodiment of the present application, unfolded along its circumference;

[0036] Figure 7A schematic diagram of the connection between the protective cover and the wire clamp body provided in an embodiment of the present application;

[0037] Figure 8 A schematic diagram of the cooperation between the first clamping portion and the second clamping portion provided in an embodiment of the present application;

[0038] Figure 9 A schematic diagram of the structure of the coil provided in an embodiment of the present application;

[0039] Figure 10 An enlarged view of a local detail of the soft wire-passing plate provided in an embodiment of the present application;

[0040] Figure 11 A schematic diagram of a state where the wire clamp provided in an embodiment of the present application is cutting a wire hole on a wire coil;

[0041] Figure 12 Schematic diagram of the partial structure of the electrical box provided in the embodiment of the present application Figure 1 ;

[0042] Figure 13 Schematic diagram of the partial structure of the electrical box provided in the embodiment of the present application Figure 2 ;

[0043] Figure 14 A schematic diagram of the partial structure of the box body provided in an embodiment of the present application;

[0044] Figure 15 A side view of a coil provided in an embodiment of the present application;

[0045] Figure 16 The embodiment of this application provides Figure 15 Cross-sectional view of AA in the figure.

[0046] Description of reference numerals:

[0047] 1. Wire pressing clamp body; 11. Wire pressing portion; 12. First clamping portion; 13. Connecting portion;

[0048] 2. Cutting portion; 21. Cutting edge; 211. First cutting edge; 212. Second cutting edge; 213. Sharp angle structure; 22. First positioning portion;

[0049] 3. Protective cover; 31. Second clamping portion; 32. Avoidance portion;

[0050] 4. Positioning plate; 41. Card slot; 42. Connecting rib plate;

[0051] 5. Soft wire guide plate; 51. First cutting path; 511. First arc-shaped hollow groove; 52. Second cutting path; 521. Second arc-shaped hollow groove; 53. Second positioning portion; 54. Guide surface;

[0052] 6. Box body; 61. Side wall; 62. Opening;

[0053] 7. Cables. DETAILED DESCRIPTION

[0054] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0055] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0056] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0057] In order to solve the technical problem in the prior art that when assembling the cable 7, a lot of time needs to be spent in other storage areas or assembly stations to find tools to cut the wire coils, resulting in low assembly efficiency of the cable 7, the present application provides a wire crimping clamp, a cable fixing assembly, an electrical box and an electrical device, which can directly cut the wire coils used with it through the cutting part 2 on the wire crimping clamp, without spending time looking for wire hole cutting tools separately, which can improve the hole opening efficiency of the wire coils and thereby improve the assembly efficiency of the cable 7.

[0058] See also Figures 1 to 16 In a first aspect, the present invention provides a wire clamp comprising a wire clamp body 1 and a cutting portion 2. Figure 1 and Figure 3 The cutting portion 2 is protruding from the outer surface of the wire crimping clamp body 1 and includes one or more cutting edges 21. The cutting edges 21 can be used to cut the wire plate in the wire coil. When assembling the cable 7, a wire hole can be prepared on the wire plate of the wire coil used in conjunction with the wire crimping clamp.

[0059] It should be noted that since the wire crimping clamp and the wire pass coil are often used in conjunction with each other and their storage areas are the same or adjacent, during assembly, the wire pass coil can be directly cut using the cutting portion 2 on the wire crimping clamp to prepare a wire pass hole on the wire pass coil that matches the wire diameter of the cable 7. This eliminates the need to spend a lot of time searching for tools such as scissors or a utility knife in other storage areas or assembly stations to cut the wire pass coil, thereby improving the efficiency of opening the wire pass coil and, in turn, the efficiency of assembling the cable 7.

[0060] Because the wire passing hole in the prior art is prepared by preparing a cross-shaped cutting groove in the wire passing hole area, and then the cable 7 is passed through the cross-shaped cutting groove, the cable 7 comes into contact with the triangular slices around the cross-shaped cutting groove when threading, and the sliding resistance encountered by the cable 7 is large. Moreover, the wire passing hole formed by this cutting method is a square or rectangular wire passing hole. When the cable 7 is a cylindrical structure, there is a large gap between the four corners of the wire passing hole and the outer peripheral surface of the cable 7, which is not conducive to improving the sealing effect between the cable 7 and the wire passing hole.

[0061] In order to solve the above problems, in some embodiments of the present application, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4The cutting portion 2 includes multiple cutting edges 21, which are centrally symmetrically arranged on the outer surface of the wire crimping clamp body 1. When the cutting portion 2 rotates relative to the wire coil, each cutting edge 21 generates a spiral shear force on the wire coil. The multiple cutting edges 21 can cut a circular wire hole in the wire plate on the wire coil, which can match the outer circumference of the cylindrical cable 7, reduce the gap between the wire hole and the outer circumference of the cable 7, and improve the sealing effect between the cable 7 and the wire hole.

[0062] In some embodiments of this application, please refer to Figure 2 、 Figure 4 and Figure 5 The cutting edge 21 includes a first blade surface 211 and a second blade surface 212 connected at an angle. A sharp edge line can be formed by connecting the first blade surface 211 and the second blade surface 212. The wire plate on the wire coil can be cut through the sharp edge line, which can improve the cutting effect of the cutting edge 21.

[0063] In some embodiments of the present application, the connection angle between the first blade surface 211 and the second blade surface 212 is θ1. Specifically, θ1 is the angle between the tangent line of the first blade surface 211 at the connection and the tangent line of the second blade surface 212 at the connection, such as Figure 5 shown.

[0064] In some preferred embodiments of the present application, θ1 is in the range of 25° to 30°. This is because, when θ1 is less than 25°, the manufacturing difficulty of the cutting edge 21 is greater, which leads to an increase in the manufacturing cost of the wire clamp, and the structural strength of the thin cutting edge is also poor. When θ1 is greater than 30°, the sharp edge formed by the connection between the first cutting edge 211 and the second cutting edge 212 is too blunt, resulting in poor cutting performance of the cutting edge 21.

[0065] In some embodiments of the present application, in order to cut a circular hole that fits the outer circumference of the cable 7 through the cutting edge 21, the first blade surface 211 and / or the second blade surface 212 are arc-shaped surfaces, and the radius of the arc-shaped surface matches the radius of the cable 7, so that the first blade surface 211 or the second blade surface 212 can be rotated to form a full circle that matches the outer circumference of the cable 7, and then a wire hole (circular hole) that matches the outer circumference of the cable 7 is cut out on the wire coil.

[0066] As a specific embodiment of the present application, the first blade surface 211 is located on the outside of the second blade surface 212 (i.e., on the side away from the center of symmetry), the first blade surface 211 is a first arcuate surface, the second blade surface 212 is a second arcuate surface, and the multiple first arcuate surfaces are located on the same circular trajectory, such as Figure 5The radius of the circular trajectory (i.e., the radius of the first arc-shaped surface) is R1, and the maximum cable radius that can be pressed by the wire pressing portion 11 of the wire pressing clamp is R(max). The value of R1 is greater than the value of the radius R(max) of the cable 7, and the difference between R1 and R(max) is less than 0.5mm. This can not only form a clearance fit between the cable 7 and the wire hole to reduce threading resistance, but also reduce the gap between the wire hole and the outer peripheral surface of the cable 7, thereby improving the sealing effect between the cable 7 and the wire hole.

[0067] In some embodiments of this application, please refer to Figure 2 、 Figure 4 and Figure 11 The cutting edge 21 has a sharp angle structure 213 on the side away from the wire clamp body 1. The sharp angle structure 213 can penetrate objects with a certain thickness. The wire plate of the coil can be pierced through the sharp angle structure 213, and then the cutting edge 21 is rotated to perform a hole opening operation on the wire plate starting from the piercing position, which is conducive to improving the convenience of the hole opening operation.

[0068] In some embodiments of this application, please refer to Figure 2 The pointed angle structure 213 can be directly formed at the connection between the first blade surface 211 and the second blade surface 212, so that the sharp edge formed by the connection of the first blade surface 211 and the second blade surface 212 becomes an edge of the pointed angle structure 213; the edge line of the first blade surface 211 and the second blade surface 212 on the side away from the wire clamp body 1 is in a spiral ascending state (i.e., a spiral edge line) along the direction of its rotation axis, so as to form the pointed angle structure 213 on the side of the cutting edge 21 away from the wire clamp body 1.

[0069] In other embodiments of this application, please refer to Figure 4 and Figure 6 A triangular pointed structure 213 is additionally provided above the spiral edge lines of the first edge surface 211 and the second edge surface 212, which is beneficial to increase the length of the cutting edge 21 in the direction of the rotation axis, thereby increasing the penetrable thickness range of the cutting edge 21.

[0070] As a specific embodiment of this application, please refer to Figure 6After the cutting edge 21 is expanded along its circumference, the spiral edge line of the first blade surface 211 and the spiral edge line of the second blade surface 212 are both low on the left and high on the right. There is an angle θ2 between the spiral edge line of the first blade surface 211 (i.e., the edge line away from the side of the wire clamp body 1) and the sharp edge line formed by the first blade surface 211 and the second blade surface 212. There is an angle θ3 between the edge line of the side of the sharp-angle structure 213 away from the wire clamp body 1 and the spiral edge line of the first blade surface 211, preferably 10 5°≤θ2+θ3≤150°, when the sum of θ2 and θ3 is above 105°, the edge line of the sharp angle structure 213 away from the side of the wire clamp body 1 can be at least 15° inclined with the horizontal direction, which is conducive to the sharp angle structure 213 at the top of the cutting edge 21 piercing the wire plate of the coil; when the sum of θ2 and θ3 is below 150°, it can avoid the sharp angle structure 213 away from the side of the wire clamp body 1 being close to the vertical state, resulting in the sharp angle structure 213 being in the vertical state. Figure 6 The extension length in the vertical direction (ie the direction of the rotation axis of the cutting edge 21) is too long, resulting in a larger spatial dimension of the cutting edge 21, which in turn results in an excessively large space occupancy rate of the entire wire clamp inside the electrical box.

[0071] In some embodiments of this application, please refer to Figure 1 and Figure 3 The wire clamp body 1 includes a wire pressing portion 11 and a connecting portion 13. The wire pressing portion 11 has a wire pressing groove that matches the cable 7, allowing the cable 7 to pass through the wire pressing portion 11. The connecting portion 13 is provided with a connecting hole, and components such as bolts or screws can be inserted into the connecting hole and the box body 6 of the electrical box in sequence to achieve a fixed connection between the wire clamp body 1 and the electrical box.

[0072] It should be noted that various specifications of the wire clamp body 1 can be set correspondingly to cables 7 with different wire diameters, such as Figure 1 and Figure 3 As shown, corresponding press-fitting of cables 7 of various specifications can be achieved.

[0073] As a specific embodiment of the present application, the wire crimping clamp body 1 has an "X"-shaped structure, a wire crimping portion 11 is provided in the middle of the "X"-shaped structure, and connecting portions 13 are provided on both sides of the "X"-shaped structure, so that the two sides of the wire crimping clamp body 1 can be symmetrically connected to the electrical box body, thereby uniformly pressing the cable 7 in the wire crimping portion 11.

[0074] In some embodiments of this application, please refer to Figure 1 and Figure 3 The wire pressing portion 11 is arranged on one side of the wire pressing clamp body 1, and the cutting portion 2 is arranged on the other side of the wire pressing clamp body 1. When the cable 7 is pressed and installed, the cutting portion 2 can be moved away from the cable 7 to prevent the cutting edge 21 in the cutting portion 2 from cutting the cable 7.

[0075] In some embodiments of this application, please refer to Figure 7 、 Figure 8 、 Figure 12 and Figure 13 The crimping clamp further includes a protective cover 3, which is detachably connected to the crimping clamp body 1, allowing for connection and separation. The protective cover 3 covers the cutting portion 2 and shields it when not in use, preventing the cutting edge 21 from accidentally injuring the operator or cutting other components in the electrical box.

[0076] It should be noted that the detachable connection between the protective cover 3 and the wire clamp body 1 can be achieved by either screw connection or snap connection. However, when the protective cover 3 and the wire clamp body 1 are detachably connected by screw connection, multiple screws need to be removed and installed in sequence, and the screw removal and installation time is longer than that of the snap connection. Therefore, it is preferred that the protective cover 3 and the wire clamp body 1 be detachably connected by snap connection.

[0077] In some embodiments of this application, please refer to Figure 7 and Figure 8 The wire clamp body 1 is provided with a first clamping portion 12, and the protective cover 3 is provided with a second clamping portion 31. The first clamping portion 12 is engaged with the second clamping portion 31, which can improve the efficiency of quick disassembly and assembly between the protective cover 3 and the wire clamp body 1.

[0078] As a specific embodiment of the present application, the first clamping portion 12 is a concave clamping groove provided on both sides of the wire clamp body 1, and the second connecting portion 13 is a hook provided on both sides of the protective cover 3. By cooperating with the hook and the concave clamping groove, the clamping connection between the protective cover 3 and the wire clamp body 1 can be quickly achieved. Figure 8 shown.

[0079] In some embodiments of this application, please refer to Figure 7 The protective cover 3 has a relief portion 32 that matches the cutting portion 2 to prevent the cutting portion 2 from being squeezed and damaged when the protective cover 3 is placed over the cutting portion 2. The relief portion 32 can be a groove or a through-slot structure provided on the protective cover 3, and the depth of the relief portion 32 is greater than the height of the cutting portion 2 protruding from the outer surface of the wire crimping clamp body 1.

[0080] As a specific embodiment of this application, please refer to Figure 7 The avoidance portion 32 is a cylindrical through groove, and the depth of the cylindrical through groove is greater than the height of the cutting portion 2 protruding from the outer surface of the wire clamp body 1. While preventing the cutting edge 21 from causing accidental injury to external components or operators, the specifications and dimensions of the cutting portion 2 can be observed through the through groove, so that a suitable wire clamp can be selected according to the specifications of the cable 7 for cutting the wire hole without opening the protective cover 3.

[0081] See also Figures 1 to 16 The second aspect of the embodiment of the present application provides a cable fixing assembly, including the wire clamp in the above embodiment, and also including a wire passing coil, the wire passing coil including a soft wire passing plate 5, and the cutting part 2 is used to cut the soft wire passing plate 5 to prepare a wire passing hole on the soft wire passing plate 5, so that the cable 7 inside the electrical box can be led out to the outside of the electrical box through the wire passing hole.

[0082] It should be noted that the soft wire-passing plate 5 is usually made of rubber material. When cutting the wire-passing hole, the sharp corner structure 213 of the cutting edge 21 is first inserted into the soft wire-passing plate 5, such as Figure 11 As shown, the wire clamp and the wire passing coil are rotated relative to each other, and the cutting edge 21 generates a spiral shear force on the soft wire passing plate 5, and a wire passing hole that matches the outer peripheral surface of the cable 7 is prepared on the soft wire passing plate 5. When the cable 7 passes through the wire passing hole, since the soft wire passing plate 5 is made of rubber material, the wear caused by the inner wall of the wire passing hole on the outer surface of the cable 7 can be reduced. Since the radius of the wire passing hole cut by the cutting edge 21 is usually 0.1 to 0.2 mm larger than the radius of the cable 7, when the cable 7 passes through the wire passing hole, it will not affect the coil structure like the cross-type wire passing coil in the prior art, so there will be no major obstacles in the threading process. After threading, the gap between the wire passing hole and the outer surface of the cable 7 is small, which will limit the cable 7 from shaking at will, and it will also be more aesthetically pleasing from the appearance of the electrical box.

[0083] In some embodiments of this application, please refer to Figure 9 、 Figure 10 and Figure 11 The soft wire-passing plate 5 is provided with a plurality of arc-shaped hollow grooves, which are arranged in a ring shape on the soft wire-passing plate 5 and can be used to indicate the cutting path of the wire-passing hole. They can be regarded as virtual knife features that guide the movement path of the cutting edge 21. The presence of the plurality of arc-shaped hollow grooves reduces the amount of cutting in the circumferential direction of the wire-passing hole (because the arc-shaped hollow groove portion does not need to be cut), which helps to reduce the cutting difficulty of the cutting edge 21 and improve cutting efficiency. At the same time, the wire-passing hole cutting path indicated by the plurality of arc-shaped hollow grooves can improve the opening accuracy of the wire-passing hole.

[0084] In some embodiments of this application, please refer to Figure 10 The central angle corresponding to the arc length distance between two adjacent arc-shaped hollow grooves is smaller than the central angle corresponding to a single arc-shaped hollow groove, so that the total arc length of multiple arc-shaped hollow grooves is greater than 50% of the circumference of the through-hole. Since the cutting edge 21 only needs to cut the arc length segment between two adjacent arc-shaped hollow grooves, when the total arc length of multiple arc-shaped hollow grooves accounts for a large proportion, the cutting amount of the cutting edge 21 in the circumferential direction of the through-hole can be reduced.

[0085] In some embodiments of this application, please refer to Figure 10The flexible wire guide plate 5 is provided with multiple cutting paths arranged in a concentric ring shape, each of which includes multiple circularly arranged arc-shaped hollow grooves. Since the radii of the multiple concentrically arranged cutting paths are different, they can be used to indicate the cutting paths for wire guide holes of various specifications. The operator can select the corresponding cutting path for cutting according to the actual wire diameter of the cable 7. The wire guide coil can be used with cables 7 of various specifications, which is conducive to improving the versatility of the wire guide coil. Preferably, two or more cutting paths are arranged in a concentric ring shape, and the radius difference between two adjacent cutting paths is 1 to 1.5 mm.

[0086] In some embodiments of this application, please refer to Figure 9 、 Figure 10 and Figure 11 The soft wire-passing plate 5 is provided with a first cutting path 51 and a second cutting path 52 arranged in a concentric ring shape, wherein the radius of the first cutting path 51 is R2, and the radius of the second cutting path 52 is R3, which can be used to prepare wire-passing holes with a radius of R2 or a radius of R3 respectively. When the radius of the cable 7 is close to R2, the cutting is performed along the first cutting path 51 by the cutting edge 21 matching the radius of the cable 7; when the radius of the cable 7 is close to R3, the cutting is performed along the second cutting path 52 by the cutting edge 21 matching the radius of the cable 7.

[0087] The first cutting path 51 includes a plurality of first arcuate hollow grooves 511 arranged in a ring shape. The central angle corresponding to each of the first arcuate hollow grooves 511 is θ4, and the central angle corresponding to the arc length between two adjacent first arcuate hollow grooves 511 is θ5. θ4 is greater than θ5, which increases the proportion of the circumference of the plurality of first arcuate hollow grooves 511 on the first cutting path 51 and reduces the amount of cutting by the cutting edge 21 along the first cutting path 51.

[0088] The second cutting path 52 includes a plurality of second arcuate hollow grooves 521 arranged in a ring shape. The central angle corresponding to each of the second arcuate hollow grooves 521 is θ6, and the central angle corresponding to the arc length between two adjacent second arcuate hollow grooves 521 is θ7. θ6 is greater than θ7, which increases the proportion of the circumference of the plurality of second arcuate hollow grooves 521 on the second cutting path 52 and reduces the amount of cutting by the cutting edge 21 along the second cutting path 52.

[0089] In some embodiments of the present application, the number of arc-shaped hollow grooves in the same cutting path is x times the number of cutting edges 21 of the cutting part 2 used therewith, and x is a positive integer; at the same time, the multiple arc-shaped hollow grooves in the same cutting path are arranged in a centrally symmetrical manner with the center of the cutting path as the center. When opening a hole, each cutting edge 21 can have an arc-shaped hollow groove corresponding to a position, so that the multiple cutting edges 21 can move along the arc surface of the arc-shaped hollow groove to realize hole opening.

[0090] In some embodiments of the present application, when the cutting portion 2 has three cutting edges 21, it is preferred to pre-prepare a cutting path and an arc-shaped hollow groove on the soft wire-passing plate 5 according to the following rules:

[0091] When Y-circle cutting paths are provided on the soft wire-passing plate 5, the cutting path closest to the rotation center is taken as the first-circle cutting path, and the number of arc-shaped hollow grooves in the n-th (n=1, 2, ..., Y) cutting path is 3n+3, and the multiple arc-shaped hollow grooves are arranged on the soft wire-passing plate 5 in a centrally symmetrical manner.

[0092] The central angle of the arc-shaped hollow groove in the n-th cutting path is 216° / (3n+3).

[0093] Specifically, when the flexible wire-passing plate 5 is provided with a first cutting path 51 and a second cutting path 52, the first cutting path 51 located on the inner circle is provided with six first arc-shaped hollow grooves 511, each corresponding to a central angle θ4 of 36°, and the arc length distance between two adjacent first arc-shaped hollow grooves 511 corresponding to a central angle θ5 of 24°. The second cutting path 52 located on the outer circle is provided with nine second arc-shaped hollow grooves 521, each corresponding to a central angle θ6 of 24°, and the arc length distance between two adjacent second arc-shaped hollow grooves 521 corresponding to a central angle θ7 of 16°.

[0094] In some embodiments of this application, please refer to Figure 10 In the radial direction of the cutting path, the multiple arc-shaped hollow grooves in the two adjacent cutting paths are circumferentially staggered, so that the arc-shaped hollow grooves in the two adjacent circles are circumferentially staggered at an angle of θ8. In this way, when opening a hole along the cutting path of the inner circle, the cutting path of the outer circle can be prevented from being pulled to a broken state.

[0095] Specifically, the circumferential misalignment angle between the arc-shaped hollow grooves in the n-th cutting path and the n-1-th cutting path is θ8=72° / 3n.

[0096] In some embodiments of this application, please refer to Figure 10 When the soft wire-passing plate 5 is provided with a first cutting path 51 and a second cutting path 52, there is a circumferential offset angle θ8 between the first arc-shaped hollow groove 511 and the second arc-shaped hollow groove 521. When cutting the connecting section between two adjacent first arc-shaped hollow grooves 511, the connecting section of the two second arc-shaped hollow grooves 521 in the second cutting path 52 can avoid a distance. When the cutting edge 21 applies a spiral shear force to the connecting section between the two first arc-shaped hollow grooves 511, the connecting section between the two second arc-shaped hollow grooves 521 located on the outer ring will not be easily torn apart by the spiral shear force applied to the inner ring.

[0097] In some embodiments of this application, please refer to Figure 10 In the radial direction of the cutting path, the central angle corresponding to the single arc-shaped hollow groove located on the inner ring is larger than the central angle corresponding to the single arc-shaped hollow groove located on the outer ring, so that the spiral shear force required for cutting the outer ring through-hole is greater than the spiral shear force required for cutting the inner ring through-hole. When preparing the through-hole along the inner ring cutting path, the outer ring cutting path is not easy to break due to pulling.

[0098] Specifically, when the soft wire-passing plate 5 is provided with a first cutting path 51 and a second cutting path 52, the central angle θ4 corresponding to each first arc-shaped hollow groove 511 in the first cutting path 51 is 36°, and the central angle θ5 corresponding to the arc length distance between two adjacent first arc-shaped hollow grooves 511 is 24°. The central angle θ6 corresponding to each second arc-shaped hollow groove 521 in the outer ring of the second cutting path 52 is 24°, and the central angle θ7 corresponding to the arc length distance between two adjacent second arc-shaped hollow grooves 521 is 16°. When cutting wire-passing holes along the first cutting path 51, the connecting section in the second cutting path 52 is not easily broken by the spiral shear force applied by the cutting edge 21.

[0099] In some embodiments of this application, please refer to Figure 4 、 Figure 5 、 Figure 10 and Figure 11 The cutting part 2 is provided with a first positioning part 22, and the soft wire-passing plate 5 is provided with a second positioning part 53. The first positioning part 22 and the second positioning part 53 are matched with each other and can be used to realize shear positioning when the wire clamp and the wire-passing coil rotate relative to each other, so as to avoid the movement path of the cutting edge 21 from being offset from the cutting path on the soft wire-passing plate 5.

[0100] Specifically, the first positioning portion 22 is a positioning column arranged at the rotation center of multiple cutting edges 21, and the second positioning portion 53 is a positioning hole arranged at the center of the cutting path. When cutting the wire hole on the soft wire plate 5 through the wire pressing clamp, the positioning column is inserted into the positioning hole, and the cutting edge 21 is inserted into the corresponding arc-shaped hollow groove. Then, the wire pressing clamp and the wire coil are rotated relative to each other under the cooperation of the positioning column and the positioning hole. The shear positioning between the wire pressing clamp and the wire coil can be realized, and the wire hole with the same shape and size as the cutting path can be prepared.

[0101] See also Figures 1 to 16 In a third aspect, an embodiment of the present application provides an electrical box, comprising the cable fixing assembly of the above embodiment, further comprising a box body 6 and a cable 7, wherein a wire pressing clamp is arranged inside the box body 6, a wire passing coil is embedded in the side wall 61 of the box body 6, and the cable 7 passes through the wire pressing portion 11 of the wire pressing clamp and the wire passing hole on the soft wire passing plate 5 in sequence, as shown in FIG. Figure 12 and Figure 13The cable 7 can be fixed inside the electrical box by a wire clamp, and the swing range of the cable 7 after it extends out of the electrical box can be limited by the wire coil, so as to prevent the cable 7 from swinging freely inside and outside the electrical box and affecting the electromagnetic balance inside the electrical box.

[0102] In some embodiments of this application, please refer to Figure 12 、 Figure 13 、 Figure 14 and Figure 15 An opening 62 is provided on the side wall 61 of the box body 6, and the coil has a card slot 41 that matches the opening 62. The wall thickness of the side wall 61 matches the width of the card slot 41, and the card slot 41 can be connected to the side wall 61 at the opening 62 to achieve the installation of the coil on the box body 6.

[0103] In some embodiments of the present application, the wire passing coil further includes a positioning plate 4 arranged opposite to the soft wire passing plate 5, the soft wire passing plate 5 and the positioning plate 4 are connected by a connecting rib plate 42, and a slot 41 is formed between the soft wire passing plate 5, the connecting rib plate 42 and the positioning plate 4, such as Figure 15 When the wire passing coil is connected to the opening 62 on the side wall 61 , the soft wire passing plate 5 abuts against the inner side of the side wall 61 , the positioning plate 4 abuts against the outer side of the side wall 61 , and the connecting rib 42 abuts against the circumferential edge of the opening 62 .

[0104] In some embodiments of the present application, a guide surface 54 is provided on the side of the soft wire passing plate 5 facing the box body 6, and the side wall 61 of the box body 6 can smoothly enter the slot 41 along the guide surface 54, which can improve the assembly efficiency between the wire passing coil and the box body 6.

[0105] In some embodiments of the present application, the coil is made of an elastic material such as rubber and is integrally molded. When the width of the opening 62 is L, the cross section of the connecting rib 42 is a trapezoidal structure, such as Figure 16 The bottom width of the trapezoidal structure is greater than L. When the coil is connected to the opening 62 through the slot 41, the bottom sides of the connecting rib 42 can be pressed against the sides of the opening 62, increasing the friction between the connecting rib 42 and the edge of the opening 62, and improving the connection reliability between the coil and the side wall 61 of the box body 6.

[0106] The fourth aspect of the embodiments of the present application provides an electrical device, including the electrical box described in the above embodiments. The electrical box can be used as an electrical control module of the electrical device, and is used to fix the external cable 7 in the electrical control module to avoid the cable 7 swinging too far, affecting the normal use of the electrical device, thereby reducing the failure rate of the electrical device.

[0107] In some embodiments of the present application, the electrical device may be a household appliance such as an air conditioner, refrigerator, washing machine, or water heater; in other embodiments of the present application, the electrical device may also be an industrial automation device such as a steam generator. Applying the electrical box of the present application to the electrical control module of the aforementioned electrical device can improve the assembly efficiency of the cable 7 of the electrical control module in the aforementioned electrical device, prevent the electrical control module of the aforementioned electrical device from swinging freely inside and outside the electrical box due to the cable 7, thereby affecting the electromagnetic balance inside the electrical box and the service life of the cable 7. This can reduce the failure rate of the aforementioned electrical device during use and improve the user experience.

[0108] See also Figures 1 to 16 In some embodiments of the present application, the assembly process of the above-mentioned electrical box is as follows:

[0109] Step 1: Select the corresponding specifications of the wire clamp and wire coil according to the outer diameter of the cable 7;

[0110] Step 2: Match the first positioning portion 22 of the cutting portion 2 with the second positioning portion 53 on the soft wire-passing plate 5, and insert the cutting edge 21 into the corresponding arc-shaped hollow groove, so that the wire clamp and the wire-passing coil rotate relative to each other, and prepare a wire-passing hole on the soft wire-passing plate 5 that matches the outer diameter of the cable 7;

[0111] Step 3: Engage the protective cover 3 with the wire pressing clamp body 1, place the cable 7 in the wire pressing portion 11, and securely connect the wire pressing clamp to the box body 6 via the connecting portion 13;

[0112] Step 4: embed the wire coil in the opening 62 of the side wall 61 of the box body 6, pass one end of the cable 7 through the wire hole on the soft wire plate 5, and connect it to the external load or other components.

[0113] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0114] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0115] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A wire clamp, characterized in that: include: Wire clamp body (1); A cutting portion (2), the cutting portion (2) is protrudingly arranged on the outer surface of the wire clamp body (1), and the cutting portion (2) includes one or more cutting edges (21).

2. The wire clamp according to claim 1, characterized in that: The cutting portion (2) comprises a plurality of cutting edges (21), and the plurality of cutting edges (21) are centrally symmetrically arranged on the outer surface of the wire clamp body (1).

3. The wire clamp according to claim 1, characterized in that: The cutting edge (21) comprises a first edge surface (211) and a second edge surface (212) connected at an angle.

4. The wire clamp according to claim 3, characterized in that: The first blade surface (211) and / or the second blade surface (212) are arc-shaped surfaces.

5. The wire clamp according to claim 1, characterized in that: The side of the cutting edge (21) facing away from the wire clamp body (1) has a pointed structure (213).

6. The wire clamp according to any one of claims 1 to 5, characterized in that: It also includes a protective cover (3), which is detachably connected to the wire clamp body (1), and the protective cover (3) is arranged on the cutting part (2).

7. The wire clamp according to claim 6, characterized in that: The wire pressing clamp body (1) is provided with a first clamping portion (12), and the protective cover (3) is provided with a second clamping portion (31), and the first clamping portion (12) and the second clamping portion (31) are clamped and connected.

8. The wire clamp according to claim 6, characterized in that: The protective cover (3) has a relief portion (32) matching the cutting portion (2).

9. A cable fixing assembly, characterized in that: It comprises the wire crimping clamp according to any one of claims 1 to 8, and further comprises a wire passing coil, wherein the wire passing coil comprises a soft wire passing plate (5), and the cutting portion (2) is used to cut the soft wire passing plate (5).

10. The cable fixing assembly according to claim 9, wherein: The soft wire-passing plate (5) is provided with a plurality of arc-shaped hollow grooves, and the plurality of arc-shaped hollow grooves are arranged in a ring shape on the soft wire-passing plate (5).

11. The cable fixing assembly according to claim 10, wherein: In the circumferential direction of the arc-shaped hollow grooves, the central angle corresponding to the arc length distance between two adjacent arc-shaped hollow grooves is smaller than the central angle corresponding to a single arc-shaped hollow groove.

12. The cable fixing assembly according to claim 10, wherein: The soft wire-passing plate (5) is provided with a plurality of cutting paths arranged in a concentric ring shape, and each of the cutting paths comprises a plurality of arc-shaped hollow grooves arranged in a ring shape.

13. The cable fixing assembly according to claim 12, wherein: In the radial direction of the cutting path, the plurality of arc-shaped hollow grooves in two adjacent cutting paths are circumferentially staggered.

14. The cable fixing assembly according to claim 12, wherein: In the radial direction of the cutting path, the central angle corresponding to the single arc-shaped hollow groove located in the inner circle is greater than the central angle corresponding to the single arc-shaped hollow groove located in the outer circle.

15. The cable fixing assembly according to any one of claims 9 to 14, characterized in that: The cutting portion (2) is provided with a first positioning portion (22), and the soft wire-crossing plate (5) is provided with a second positioning portion (53), and the first positioning portion (22) and the second positioning portion (53) are matched and arranged.

16. An electrical appliance box, characterized in that: It comprises a cable fixing assembly as described in any one of claims 9 to 15, and also comprises a box body (6) and a cable (7), wherein the wire clamp is arranged inside the box body (6), the wire passing coil is embedded in the side wall (61) of the box body (6), and the cable (7) passes through the wire clamp and the soft wire passing plate (5) in sequence.

17. The electrical appliance box according to claim 16, characterized in that: An opening (62) is provided on the side wall (61) of the box body (6), and the coil has a slot (41) matched with the opening (62).

18. An electrical device, characterized in that: Comprising the electrical box as described in claim 16 or 17.

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