Wire fixing structure and electrical equipment

Abstract

This utility model provides a wire fixing structure and an electrical device. The wire fixing structure includes a wire, a main body, and a sealing ring. A wire clip assembly is integrally formed on the wire. The wire clip assembly includes a pressure plate and a locking block. Along the insertion direction of the wire clip assembly, the pressure plate is located at the upstream end of the locking block. The main body has an insertion hole with a countersunk head and a through hole. A locking block is provided in the through hole. The locking block has a locking surface. Along the insertion direction, the locking surface is located at the downstream end of the locking block. The sealing ring is installed in the countersunk head. After the wire is assembled with the main body, the wire clip assembly is inserted into the insertion hole. The pressure plate presses the sealing ring against the bottom wall of the countersunk head. The sealing ring forces the locking block to fasten against the locking surface in the opposite direction of the insertion direction. The electrical device includes this wire fixing structure. This wire fixing structure is convenient to assemble, easy to operate, and low in cost, while meeting the requirements of waterproofing and tensile strength.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a wire fixing structure and an electrical device equipped with the wire fixing structure. Background Technology

[0002] Electrical equipment, especially outdoor equipment, has specific requirements for waterproof performance. Currently, a fitting is usually installed on the casing of the equipment, ensuring that the connection between the fitting and the casing meets waterproof requirements. The cable then enters the equipment through this fitting, ensuring that the connection between the cable and the fitting also meets waterproof requirements. In addition, based on national standards, the cable must meet certain tensile strength requirements in addition to meeting waterproof requirements to address the issue of waterproof failure caused by cable displacement due to tension.

[0003] There are currently two methods for handling this: The first method uses copper cable clamps as accessories, which can simultaneously meet the requirements for waterproofing and tensile strength of the cable; however, this method is costly, the assembly is relatively complicated, and it is easy to waste copper materials.

[0004] The second method uses a simple cable sheath as an accessory. Although the cable sheath can meet the waterproof requirements, it cannot meet the tensile requirements. Therefore, the cable needs to be fixed a second time. However, the assembly process for the second fixation is complicated and the process is unstable, which can easily lead to the tensile performance still not meeting the requirements. Utility Model Content

[0005] To address the aforementioned problems, the primary objective of this utility model is to provide a wire fixing structure that is easy to assemble, simple to operate, and low in cost, while meeting the requirements for waterproofing and tensile strength.

[0006] The second objective of this utility model is to provide an electrical device equipped with the aforementioned wire fixing structure.

[0007] To achieve the primary objective of this utility model, it provides a wire fixing structure, comprising a wire, a main body, and a sealing ring. A wire clip assembly is integrally formed on the wire, the wire clip assembly including a pressure plate and a snap-fit ​​block. Along the insertion direction of the wire clip assembly, the pressure plate is located at the upstream end of the snap-fit ​​block. The main body has an insertion hole with a countersunk head and a through hole. A locking block is provided in the through hole, and the locking block has a locking surface. Along the insertion direction, the locking surface is located at the downstream end of the locking block. The sealing ring is installed in the countersunk head. After the wire is assembled with the main body, the wire clip assembly is inserted into the insertion hole. The pressure plate presses the sealing ring against the bottom wall of the countersunk head, and the sealing ring forces the snap-fit ​​block to fasten against the locking surface in the opposite direction of the insertion direction.

[0008] As can be seen from the above, the design of the wire fixing structure enables the wire to be quickly assembled and disassembled from the main body, improving assembly efficiency and reducing the number of assembly parts, thus saving production costs. In addition, the sealing ring is formed elastically under pressure when it is used in conjunction with the pressure plate and the countersunk head, thereby ensuring a sealed connection between the wire and the main body and ensuring waterproof effect. Furthermore, the interlocking action of the snap-fit ​​block and the locking surface ensures that the tensile strength of the wire meets the requirements.

[0009] A further option is to have a retaining ring inside the countersunk head, which surrounds the opening of the through hole, forming a sealing groove between the retaining ring and the countersunk head, and a sealing ring installed inside the sealing groove.

[0010] As can be seen from the above, setting a retaining ring not only improves the waterproof effect, but also positions and limits the installation of the sealing ring, thereby improving the convenience and efficiency of assembling the wire fixing structure.

[0011] A preferred embodiment is that the maximum width of the sealing ring cross section is 0.8 to 1 times the width of the sealing groove; and the maximum height of the sealing ring cross section is 1.2 to 1.3 times the height of the retaining ring.

[0012] As can be seen from the above, the design can prevent the sealing ring from being torn due to excessive compression, and also prevent the sealing ring from failing to completely fill the sealing groove due to insufficient compression, thus preventing waterproofing failure.

[0013] Another preferred option is that a portion of the locking block is located inside the retaining ring.

[0014] As can be seen from the above, by placing a portion of the locking block inside the retaining ring, the hole wall of the through hole does not need to extend excessively into the body, thereby reducing the internal space occupied by the socket and wire clip assembly. This helps to reduce the volume of the body while optimizing the structural layout and making full use of the internal space of the body.

[0015] A further improvement is that the locking block also has a boss that protrudes from the locking surface along the insertion direction.

[0016] As can be seen from the above, the boss can prevent the wire clip assembly from rotating excessively relative to the locking block, thereby ensuring the reliability and stability of the locking engagement between the snap-fit ​​block and the locking block, and preventing the snap-fit ​​block from disengaging from the locking block due to excessive rotation relative to the locking block during assembly, thus improving assembly reliability and assembly experience.

[0017] A further improvement is that the locking block also has a locking groove, which is recessed into the locking block along the opposite direction from the locking surface, and the locking groove is located between the locking surface and the boss.

[0018] As can be seen from the above, the locking slot can prevent the wire clip assembly from retracting unexpectedly after engaging with the locking block, thereby preventing the snap-fit ​​block and the locking block from separating without disassembly, ensuring the waterproof effect and the tensile strength of the wire.

[0019] A further embodiment is that the locking block also has a first guide angle, a second guide angle, and a third guide angle. The first guide angle is formed at the junction of the first end face and the locking surface of the locking block. Along the locking rotation direction of the wire clip assembly, the first end face is the upstream end face of the locking block, and the first guide angle is located at the upstream end of the boss. The second guide angle is formed at the junction of the first end face and the top surface of the locking block. In the insertion direction, the top surface and the locking surface are located on both sides of the locking block. The third guide angle is located at the junction of the locking surface and the locking slot.

[0020] As can be seen from the above, the first guide angle is used to guide the snap-fit ​​block to move smoothly towards the locking surface and locking slot, while reducing the operating force required by the user during the assembly of the wire and the main body, making the assembly of the wire fixing structure more convenient and easier to operate; the second guide angle is used to guide the snap-fit ​​block to move smoothly towards the first guide angle, which can also reduce the operating force required by the user during the assembly of the wire and the main body, improving the convenience and assembly experience; the third guide angle allows the snap-fit ​​block to be more conveniently and effortlessly removed from the locking slot when the user disassembles the wire and the main body.

[0021] A further proposed solution is to have between two and four locking blocks, which are evenly distributed circumferentially along the through-hole, with an avoidance channel formed between adjacent locking blocks; the number of snap-fit ​​blocks is equal to the number of locking blocks, with one snap-fit ​​block engaging with one locking block; the locking block also has a fourth guide angle, which is formed at the junction of the top surface and the second end face, along the locking rotation direction, with the second end face being the downstream end face of the locking block.

[0022] As can be seen from the above, the number of locking blocks can ensure the locking effect between the wire clip assembly and the main body, as well as the waterproof effect and tensile strength; it can also avoid the main body structure from being too complex, reducing production difficulty and production cost; the fourth guide angle is used to cooperate with the second guide angle to guide the clip block to move towards the first guide angle, making assembly more convenient and easier to operate.

[0023] A further option is that the wire is also integrally formed with an operating part, which is located on the side of the pressure plate away from the snap-fit ​​block; the operating part is a nut, or the operating part includes two symmetrically arranged wings.

[0024] As can be seen from the above, the design of the operating section allows users to more easily control the rotation of the line card assembly relative to the main body, thereby facilitating the locking and engaging or disengaging of the locking block and the clamping block.

[0025] To achieve the second objective of this utility model, this utility model provides an electrical device, which includes the above-mentioned wire fixing structure, with the main body formed on the housing of the electrical device.

[0026] As can be seen from the above, by setting the above-mentioned wire fixing structure, the electrical equipment has excellent waterproof effect and wire tensile strength, while making waterproofing and wire tensile strength treatment more convenient, requiring fewer assembly parts, simple assembly and low cost. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an embodiment of the wire fixing structure of this utility model.

[0028] Figure 2 This is an exploded view of an embodiment of the wire fixing structure of this utility model.

[0029] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the wire fixing structure of this utility model.

[0030] Figure 4 This is a structural diagram of the wire in an embodiment of the wire fixing structure of this utility model.

[0031] Figure 5 This is a structural diagram of the end cap of an embodiment of the wire fixing structure of this utility model.

[0032] Figure 6 This is a partial structural diagram of the end cap of an embodiment of the wire fixing structure of this utility model.

[0033] Figure 7 This is a partial structural diagram of an embodiment of the wire fixing structure of this utility model.

[0034] Figure 8 This is a schematic diagram of the wire fixing structure embodiment of the present invention, with some components omitted.

[0035] Figure 9 This is a schematic diagram of an embodiment of the wire fixing structure of this utility model, which has two insertion holes.

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0037] Example of wire fixing structure Reference Figures 1 to 3The wire fixing structure 100 includes a main body 1, a wire 2, and a sealing ring 3. When the wire fixing structure 100 is applied to an electrical device, the main body 1 can be part of the housing of the electrical device, that is, the main body 1 is formed on the housing of the electrical device. This embodiment uses the end cap of an electrical device (such as a power supply or lamp) as an example for illustration; it should be noted that the specific shape and type of the main body 1 in this embodiment cannot be used to limit the scope of application of the main body 1. For example, the main body 1 can also be the lamp body of a lamp, or the housing of a power supply, or the housing of a washing machine, dishwasher, exhaust fan, etc., so examples will not be given here.

[0038] Combination Figure 4 The wire 2 is provided with a wire clamp assembly 21, which is integrally formed with the sheath of the wire 2 (i.e., the outermost insulating layer of the wire 2). The wire clamp assembly 21 includes an integrally formed pressure plate 211, a snap-fit ​​block 212, and an operating part 213. Along the insertion direction X of the wire clamp assembly 21, the pressure plate 211 is located upstream of the snap-fit ​​block 212, and the operating part 213 is located upstream of the pressure plate 211. A locking position is formed between the pressure plate 211 and the snap-fit ​​block 212 for cooperating with the main body 1 to fix the wire clamp assembly 21 on the main body 1 and ensure the tensile strength of the wire 2.

[0039] The operating part 213 is preferably formed on the pressure plate 211 to make the user's operation of the wire clamp assembly 21 relative to the main body 1 more reliable. It can be seen that the operating part 213 provides a force point for the user to rotate the wire clamp assembly 21. In this embodiment, the operating part 213 is hexagonal nut-shaped, allowing the user to operate the operating part 213 by hand or with the aid of a tool (such as a wrench) to control the rotation of the wire clamp assembly 21 relative to the main body 1, thereby completing the assembly between the wire 2 and the main body 1, making the assembly process more labor-saving and easier to operate. It is understood that in some embodiments, the operating part 213 includes two mirror-symmetrically arranged wings, which act like a wing nut, thereby making it easier for the user to control the rotation of the wire clamp assembly 21 relative to the main body 1, thus making the assembly and disassembly of the wire 2 and the main body 1 more convenient, while also having the advantages of being labor-saving and easy to operate.

[0040] Combination Figure 5 and Figure 6 The main body 1 is provided with a socket 11, which is used to connect with the wire clip assembly 21 of the wire 2. The socket 11 includes a countersunk head 111 and a through hole 112. That is, the socket 11 is preferably a hole similar to the countersunk head hole. The socket 11 connects the inner side and the outer side of the main body 1, and the through hole 112 is located between the countersunk head 111 and the inner side of the main body 1. The inner side of the main body 1 refers to the side of the main body 1 exposed to the external environment, and the inner side of the main body 1 refers to the side of the main body 1 close to the inside of the appliance.

[0041] A locking block 113 is provided in the through hole 112. The locking block 113 has a locking surface 1131. The locking surface 1131 is located at the downstream end of the locking block 113 along the insertion direction X of the wire clamp assembly 21 inserted into the socket 11. This allows the locking block 212 to be located at the downstream end of the locking surface 1131 and to contact the locking surface 1131 when the wire clamp assembly 21 is inserted into the socket 11. This restricts the reverse movement of the wire 2 along the insertion direction X, thereby enabling the wire 2 to have the required tensile strength.

[0042] Furthermore, the locking block 113 also has a boss 1132, which protrudes from the locking surface 1131 along the insertion direction X and along the locking rotation direction R of the wire clip assembly 21. The boss 1132 is located on the downstream end side of the locking block 113, preferably on the most downstream end side of the locking block 113. The boss 1132 is provided to limit the rotation of the latching block 212 during the assembly of the wire clip assembly 21 and the main body 1, so as to prevent the latching block 212 from disengaging from the locking engagement with the locking block 113 due to excessive rotation of the wire clip assembly 21 relative to the main body 1, thereby improving the assembly reliability and assembly experience, while ensuring the stability of the locking engagement between the latching block 212 and the locking block 113.

[0043] In this embodiment, the locking block 113 also has a locking groove 1133. The locking groove 1133 is recessed into the locking block 113 from the locking surface 1131 in the opposite direction of the insertion direction X. When the latching block 212 moves to the locking groove 1133, under the elastic action of the sealing ring 3, the wire clamp assembly 21 is forced to move in the opposite direction of the insertion direction X, thereby causing the latching block 212 to fall into the locking groove 1133. The locking groove 1133 can prevent the wire clamp assembly 21 from undesired retraction after engaging with the locking block 113 (such as the latching block 212 retracting in the opposite direction of the locking rotation direction R in a non-disassembled state), thereby preventing the latching block 212 from separating from the locking block 113 without disassembly, ensuring the waterproof effect and the tensile strength of the wire 2. Along the locking rotation direction R, the boss 1132 is located at the downstream end of the locking block.

[0044] Preferably, in the insertion direction X, the locking surface 1131 is 0.2 mm to 0.5 mm higher than the bottom of the locking slot 1133, that is, the depth of the locking slot 1133 is between 0.2 mm and 0.5 mm. This design enables the locking slot 1133 to effectively limit the undesirable retraction of the latching block 212, and also allows the latching block 212 to move smoothly toward the locking surface 1131 when the operating line card assembly 21 is separated from the main body 1, thereby disengaging from the locking engagement with the locking block 113.

[0045] It is understood that in this embodiment, the locking block 113 mainly relies on the cooperation between the locking slot 1133 and the snap-fit ​​block 212 of the wire clamp assembly 21 to lock and fix the wire 2 to the main body 1, thereby ensuring the tensile performance of the wire 2 and having better waterproof effect and tensile performance. Of course, in some embodiments, if the locking block 113 does not have a locking slot 1133, the locking and fixing of the wire 2 and the main body 1 can also be achieved by relying on the locking surface 1131. When the locking block 113 only has a locking surface 1131 to cooperate with the snap block 212, the locking surface 1131 can be inclined. That is, along the locking rotation direction R, the distance between the upstream end of the locking surface 1131 and the top surface 1130 of the locking block 113 is greater than the distance between the downstream end of the locking block 113 and the locking surface 1131. In the insertion direction X, the top surface 1130 and the locking surface 1131 of the locking block 113 are located on opposite sides of the locking block 113.

[0046] Combination Figure 7 The sealing ring 3 is installed inside the countersunk head 111. When the wire 2 is assembled with the main body 1, the wire clamp assembly 21 is inserted into the socket 11 along the insertion direction X, so that the pressure plate 211 presses the sealing ring 3 against the bottom wall of the countersunk head 111. Then, the wire clamp assembly 21 is rotated along the locking rotation direction R, so that the snap-fit ​​block 212 moves to the downstream end of the locking surface 1131. In this embodiment, the wire clamp assembly 21 is rotated along the locking rotation direction R until it can no longer be rotated. At this time, the force applied to the wire clamp assembly 21 along the insertion direction X is released. Under the elastic recovery of the sealing ring 3, the snap-fit ​​block 212 will be fastened to the bottom wall of the locking groove 1133 in the opposite direction of the insertion direction X. It can be understood that when the locking block 113 is not provided with the locking groove 1133, the snap-fit ​​block 212 will be fastened to the locking surface 1131 in the opposite direction of the insertion direction X. Preferably, after the line card assembly 21 is assembled with the main body 1, the pressure plate 211 is located inside the countersunk head 111 and almost completely covers the opening of the countersunk head 111, so as to further achieve the effect of waterproofing and dustproofing.

[0047] Combination Figure 8Preferably, a retaining ring 1111 is provided inside the countersunk head 111. The retaining ring 1111 surrounds the opening of the through hole 112, and a sealing groove 1110 is formed between the retaining ring 1111 and the countersunk head 111. The sealing ring 3 is installed in the sealing groove 1110. The retaining ring 1111 serves two purposes. First, it acts as a retaining wall to further prevent external water from entering the inner side of the main body 1 through the through hole 112. Especially when the sealing ring 3 ages, the retaining wall can reduce the impact of poor sealing effect and water seepage caused by the aging of the sealing ring 3, thus preventing water from entering the inner side of the main body 1 through the through hole 112. Second, the retaining ring 1111 can position and limit the installation of the sealing ring 3, preventing the sealing ring 3 from being affected by positional displacement or misalignment during assembly, which would affect the waterproof effect. It also improves the convenience and efficiency of assembling the wire fixing structure 100.

[0048] Preferably, the maximum width W1 of the sealing ring 3 is 0.8 to 1 times the width W2 of the sealing groove 1110, and the maximum height H1 of the sealing ring 3 is 1.2 to 1.3 times the height H2 of the retaining ring 1111. Since the fit between the sealing groove 1110 and the sealing ring 3 must be just right, this dimensional design ensures a reliable fit between the sealing ring 3 and the sealing groove 1110, guaranteeing a waterproof effect. This avoids both excessive compression of the sealing ring 3, preventing it from tearing due to excessive pressure when the locking block 212 is screwed into the locking groove 1133 or rotated to the locking surface 1131, and insufficient compression of the sealing ring 3, thus preventing waterproofing failure.

[0049] Furthermore, in this embodiment, a portion of the locking block 113 is located within the retaining ring 1111. By placing a portion of the locking block 113 within the retaining ring 1111, the wall of the through hole 112 does not need to extend excessively into the body 1, thereby reducing the internal space of the body 1 occupied by the insertion hole 11 and the wire clip assembly 21. This helps to reduce the volume of the body 1 while optimizing the structural layout, making full use of the internal space of the body 1. Further, the top surface 1130 of the locking block 113 is preferably flush with the top surface 1130 of the retaining ring 1111, and the bottom surface of the boss 1132 is preferably flush with the bottom surface of the through hole 112. It is understood that in other embodiments, the locking block 113 may not be located within the retaining ring 1111. In these embodiments, the insertion hole 11 and the locking block 113 are integrally formed on the body 1.

[0050] Furthermore, the locking block 113 also has a first guide angle 1134, a second guide angle 1135, a third guide angle 1136, and a fourth guide angle 1137. The first guide angle 1134 is formed at the junction of the first end face 1138 and the locking surface 1131 of the locking block 113, along the locking rotation direction R of the wire clamp assembly 21. The first end face 1138 is the upstream end face of the locking block 113, so that the first guide angle 1134 is located at the upstream end of the boss 1132. The setting of the first guide angle 1134 makes the locking block 113 form a first inclined guide surface at the first guide angle 1134, which can guide the latch block 212 to move smoothly towards the locking surface 1131 and the locking slot 1133. At the same time, it can reduce the operating force required by the user during the assembly of the wire 2 and the main body 1, making the assembly of the wire fixing structure 100 more convenient and easier to operate.

[0051] The second guide angle 1135 is formed at the junction of the first end face 1138 and the top surface 1130 of the locking block 113. The setting of the second guide angle 1135 makes the locking block 113 form a second inclined guide surface at the second guide angle 1135, which can guide the snap-fit ​​block 212 into the clearance channel (see below) and move smoothly towards the first guide angle 1134. It can also reduce the operating force required by the user during the assembly of the wire 2 and the main body 1, and improve the convenience and assembly experience of the assembly.

[0052] The third guide angle 1136 is located at the junction of the locking surface 1131 and the locking slot 1133. The setting of the third guide angle 1136 makes the locking block 113 form a third inclined guide surface at the third guide angle 1136, so that when the user disassembles the wire 2 and the main body 1, the snap-fit ​​block 212 can be disengaged from the locking slot 1133 more smoothly, making it easier and less strenuous for the user to disassemble the wire 2 and the main body 1.

[0053] The fourth guide angle 1137 is formed at the junction of the top surface 1130 and the second end surface 1139, along the locking rotation direction R. The second end surface 1139 is the downstream end surface of the locking block 113. The fourth guide angle 1137 is set so that the locking block 113 forms a fourth inclined guide surface at the fourth guide angle 1137, which can cooperate with the second guide angle 1135 to guide the latching block 212 to move towards the clearance channel and the first guide angle 1134, making assembly more convenient and easier to operate.

[0054] The number of locking blocks 113 is between two and four, and these two to four locking blocks 113 are evenly distributed circumferentially along the through hole portion 112. An obstacle clearance channel is formed between adjacent locking blocks 113, that is, an obstacle clearance channel is formed between the first end face 1138 of the locking block 113 and the second end of the adjacent locking block 113, allowing the snap-fit ​​block 212 to pass through and guide the wire clamp assembly 21 to move to the correct installation position. The number of snap-fit ​​blocks 212 is equal to the number of locking blocks 113, such that one snap-fit ​​block 212 is engaged with one locking block 113. In this embodiment, the number of locking blocks 113 and the number of snap-fit ​​blocks 212 are both three. By setting the number of locking blocks 113, on the one hand, the locking effect between the wire clamp assembly 21 and the main body 1 can be guaranteed, ensuring waterproofing and tensile strength; on the other hand, it can also avoid excessive structural complexity of the main body 1, reducing production difficulty and cost.

[0055] It should be noted that the main body 1 can be provided with more than two sockets 11, and correspondingly, the number of wires 2 and sealing rings 3 is also more than two. Each socket 11 is connected to one wire 2 and one sealing ring 3. Figure 9 As shown, in some embodiments, there are two sockets 11, two wires 2, and two sealing rings 3.

[0056] In summary, the design of the wire fixing structure 100 allows for quick assembly and disassembly of the wire 2 from the main body 1. Compared to existing methods that rely on accessories to ensure waterproofing and tensile strength at the connection point, the integrated design of the socket 11, locking block 113, and other components on the main body 1 eliminates the need for additional parts during the assembly of the wire clip assembly 21 with the main body 1, and also eliminates the need for further processing. Furthermore, the wire fixing structure 100 design eliminates the need for manual or tool insertion into the main body 1 during assembly, making the assembly of the wire 2 and main body 1 more efficient. Convenient and easy to operate, the assembly of the wire clip assembly 21 with the main body 1 is less restricted by the inner space of the main body 1. Even if the inner space of the main body 1 is not conducive to the insertion of hands or tools, it does not affect the assembly speed and convenience of the wire clip assembly 21 with the main body 1, effectively improving assembly efficiency. At the same time, it reduces the number of parts required for waterproofing and tensile treatment, saving production costs. Furthermore, the sealing ring 3 is formed elastically under pressure when it is used in conjunction with the pressure plate 211 and the countersunk head 111, thereby ensuring the sealed connection between the wire 2 and the main body 1 and ensuring the waterproof effect. In addition, under the interlocking action of the snap-fit ​​block 212 and the locking surface 1131, the tensile performance of the wire 2 can be guaranteed to meet the requirements.

[0057] Example of electrical equipment The electrical equipment includes the wire fixing structure described in the above-mentioned wire fixing structure embodiments, with the main body formed on the housing of the electrical equipment. The electrical equipment includes, but is not limited to, lighting fixtures (especially outdoor lighting fixtures), power supplies (especially outdoor waterproof power supplies), and household appliances (including but not limited to rice cookers, blenders, induction cookers, washing machines, dishwashers, water purifiers, water dispensers, etc.). For example, when the electrical equipment is a lighting fixture, the main body of the wire fixing structure can be the lamp housing or end cap of the lighting fixture; when the electrical equipment is a power supply, the main body can be the power supply housing or end cap; and when the electrical equipment is a household appliance, the main body can be the housing of a specific type of household appliance. It is understood that the wire fixing structure can be used on all electrical equipment requiring waterproofing and / or tensile strength of the wire, therefore, specific examples will not be provided here.

[0058] By setting up the above-mentioned wire fixing structure, electrical equipment has excellent waterproof effect and wire tensile strength, while making waterproofing and wire tensile strength treatment more convenient, requiring fewer assembly parts, simple assembly and low cost.

[0059] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire fixing structure, characterized in that, include: A wire, on which a wire clip assembly is integrally formed, the wire clip assembly including a pressure plate and a snap-fit ​​block, wherein the pressure plate is located at the upstream end of the snap-fit ​​block along the insertion direction of the wire clip assembly; The main body is provided with an insertion hole, the insertion hole having a countersunk head and a through hole, the through hole having a locking block, the locking block having a locking surface, and along the insertion direction, the locking surface being located at the downstream end of the locking block; A sealing ring is installed inside the countersunk head. After the wire is assembled with the main body, the wire clip assembly is inserted into the socket. The pressure plate presses the sealing ring against the bottom wall of the countersunk head. The sealing ring forces the snap-fit ​​block to fasten to the locking surface in the opposite direction of the insertion direction.

2. The wire fixing structure according to claim 1, characterized in that: The countersunk head is provided with a retaining ring, which surrounds the opening of the through hole. A sealing groove is formed between the retaining ring and the countersunk head, and the sealing ring is installed in the sealing groove.

3. The wire fixing structure according to claim 2, characterized in that: The maximum width of the cross-section of the sealing ring is 0.8 to 1 times the width of the sealing groove; The maximum height of the cross-section of the sealing ring is 1.2 to 1.3 times the height of the retaining ring.

4. The wire fixing structure according to claim 2, characterized in that: A portion of the locking block is located within the retaining ring.

5. The wire fixing structure according to claim 4, characterized in that: The locking block also has a boss that protrudes from the locking surface along the insertion direction.

6. The wire fixing structure according to claim 5, characterized in that: The locking block also has a locking groove, which is recessed into the locking block from the locking surface in the opposite direction, and the locking groove is located between the locking surface and the boss.

7. The wire fixing structure according to claim 6, characterized in that: The locking block also has: The first guide angle is formed at the junction of the first end face of the locking block and the locking surface, along the locking rotation direction of the wire clamp assembly. The first end face is the upstream end face of the locking block, and the first guide angle is located at the upstream end of the boss. The second guide angle is formed at the junction of the first end face and the top surface of the locking block. In the insertion direction, the top surface and the locking surface are located on opposite sides of the locking block. The third guide angle is located at the junction of the locking surface and the locking groove.

8. The wire fixing structure according to claim 7, characterized in that: The number of locking blocks is between 2 and 4, and the 2 to 4 locking blocks are evenly distributed along the circumference of the through hole, with an avoidance channel formed between two adjacent locking blocks; The number of the snap-fit ​​blocks is equal to the number of the locking blocks, and one snap-fit ​​block is connected to one locking block. The locking block also has a fourth guide angle, which is formed at the junction of the top surface and the second end surface along the locking rotation direction, and the second end surface is the downstream end surface of the locking block.

9. The wire fixing structure according to any one of claims 1 to 8, characterized in that: The wire is also integrally formed with an operating part, which is located on the side of the pressure plate opposite to the snap-fit ​​block; The operating part is a nut, or The operating part includes two symmetrically arranged wings.

10. Electrical equipment, characterized in that, Includes the wire fixing structure as described in any one of claims 1 to 9, wherein the main body is formed on the housing of the electrical equipment.

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