Power line structure and range hood

Abstract

The utility model relates to the technical field of power lines, and discloses a power line structure and a range hood, the whole power line is divided into two parts, namely a first power line connected with a female joint and a second power line connected with a male joint, and the first power line and the second power line are electrically connected through plugging of the male joint and the female joint; no matter which one of the first power line and the second power line is damaged, the damaged one can be quickly replaced, and the maintenance efficiency of the power lines is improved. Besides, when the power line structure is used, for example, a wire box needing to be connected with an external power supply is used, one end, far away from the first power line, of the female joint penetrates out of a penetrating hole in a panel of the wire box and then is in threaded connection with an anti-loosening piece, the panel of the wire box is clamped between a limiting convex part and the anti-loosening piece, and fastening of the female joint is achieved. The stability of the female joint is good, the contact between the power line and the main control board in the wire box is effectively realized, the loosening is not easy, and the disassembly of the female joint is simple and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of power cords, in particular to a power cord structure and a range hood. Background Art

[0002] In the prior art, electrical appliances often use a single, unbroken power cord. If the power cord becomes damaged during use, the entire cord must be replaced, resulting in high costs and a poor user experience. Furthermore, existing power cords are often secured with screws. Specifically, the power cord's mounting bracket is fixed to the appliance's housing with multiple screws. This requires a screw assembly and disassembly tool, making assembly and disassembly cumbersome. Alternatively, the power cord's mounting bracket can be embedded in an electrical box. This embedded mounting method is prone to movement, and if subjected to external tension, it can easily loosen contact with the main control board inside the box, posing a safety risk.

[0003] Therefore, there is an urgent need for a power line structure to solve the above technical problems. Utility Model Content

[0004] One of the technical problems solved by the present invention is to provide a power cord structure that can improve the installation and replacement efficiency of the power cord and reduce the maintenance cost of the power cord; and the power cord connection has good stability and is not easy to shake, thereby improving the safety of the power cord.

[0005] The second technical problem solved by the present invention is to provide a range hood that can improve the maintenance efficiency of the range hood, reduce the maintenance cost of the range hood, and improve the safety of the range hood.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A power line structure, comprising:

[0008] a first power cord and a second power cord;

[0009] a female connector, one end of which is connected to the first power line, and an outer peripheral surface of which is provided with a limiting protrusion;

[0010] a male connector, one end of which is connected to the second power cord, and the other end of which is axially plugged into the other end of the female connector to electrically connect the first power cord and the second power cord;

[0011] An anti-loosening part is sleeved on the end of the female connector away from the first power supply, the anti-loosening part is threadedly connected to the female connector, the anti-loosening part is arranged on one side of the limiting protrusion at intervals along the axial direction of the female connector, and a clamping structure is formed between the anti-loosening part and the limiting protrusion.

[0012] Compared with the background technology, the power cord structure provided by the present invention has the following beneficial effects: the power cord structure divides the entire power cord into two parts, namely a first power cord connected to the female connector and a second power cord connected to the male connector, and the first power cord and the second power cord are electrically connected by plugging the male connector and the female connector; no matter which of the first power cord and the second power cord is damaged, it can be quickly replaced, thereby improving the maintenance efficiency of the power cord; and since the entire power cord is divided into two parts, only the damaged section needs to be replaced, and there is no need to replace the entire power cord, thereby reducing maintenance costs. In addition, when the power cord structure is used, for example, when an electrical box that needs to be connected to an external power supply is used, the end of the female connector away from the first power cord is passed through the hole on the panel of the electrical box and then threadedly connected to the anti-loosening piece. The anti-loosening piece and the limiting protrusion jointly clamp the panel of the electrical box, thereby achieving the tightening of the female connector, making the female connector more stable, effectively achieving the contact between the power cord and the main control board in the electrical box and not easy to loosen, thereby improving the safety of use; when the female connector and the first power cord are damaged, only the male connector needs to be pulled out, and the anti-loosening piece needs to be screwed to separate the anti-loosening piece from the female connector, and the female connector and the first power cord can be removed. The disassembly of the female connector is simple and quick; at the same time, no screws are required to fix the female connector and the electrical box, thereby improving the assembly and maintenance efficiency of the power cord.

[0013] In some embodiments, a groove is provided at the end of the female connector away from the first power cord, and a partition is provided in the groove. The partition divides the inner cavity of the groove to form a plurality of circumferentially spaced plug-in slots. The end of the male connector away from the second power cord is provided with a plug-in protrusion that can be inserted into the plug-in slot, and an avoidance groove for inserting the partition is formed between two adjacent plug-in protrusions, and the plurality of plug-in protrusions and the plurality of plug-in slots are plugged in one-to-one.

[0014] In some embodiments, a plurality of first wire cores are formed at one end of the first power cord, and the plurality of first wire cores extend into the plugging slot from different bottoms of the plugging slot respectively;

[0015] One end of the second power cord is formed with a plurality of second cores, and the plurality of second cores are respectively fixed in different plug-in protrusions. The first core can be plugged into the plug-in protrusion and electrically contact with the corresponding second core.

[0016] In some embodiments, the inner peripheral wall of the groove is provided with a first anti-foolproofing part, and the outer peripheral wall of the male connector is provided with a second anti-foolproofing part, and the first anti-foolproofing part and the second anti-foolproofing part are plug-fitted.

[0017] In some embodiments, the power cord structure further includes a rotary switch, one end of which is connected to the male connector and is restricted from axial movement relative to the male connector, and the other end of which is sleeved outside the female connector;

[0018] The rotary switch is capable of circumferentially rotating relative to the female connector to switch the rotary switch between an unlocked state and a locked state;

[0019] When the rotary switch is in the unlocked state, the rotary switch can move axially relative to the female connector so that one end of the female connector moves in and out of the rotary switch; when the rotary switch is in the locked state, the rotary switch is restricted from axially disengaging from the female connector.

[0020] In some embodiments, the inner peripheral wall of the rotary switch is provided with a first limiting portion;

[0021] The outer peripheral wall of the female connector is provided with a circumferential groove extending along the circumference of the female connector and an axial groove extending along the axial direction of the female connector; one end of the axial groove extends to the axial end surface of the female connector, and the other end of the axial groove is connected to one end of the circumferential groove;

[0022] When the rotary switch is in the unlocked state, the first limiting portion can slide in the axial groove; when the rotary switch is in the locked state, the first limiting portion is limited in the circumferential groove along the axial direction of the female connector;

[0023] The power cord structure further includes an elastic reset member, which releases elastic force when the rotary switch is in a locked state so that the first limiting portion can enter and remain in the circumferential groove;

[0024] When the rotary switch is in the unlocked state, the elastic return member tightens the elastic force under the action of an external force, so that the first limiting portion exits the circumferential groove.

[0025] In some embodiments, the inner peripheral wall of the rotary switch is provided with a second limiting portion extending along the axial direction of the rotary switch, the first limiting portion is connected to the second limiting portion, and the first limiting portion and the second limiting portion are both distributed along the circumference of the rotary switch;

[0026] The second limiting portion is capable of sliding in the axial groove along the axial direction of the rotary switch, and the second limiting portion is also capable of sliding in the axial groove along the circumferential direction of the rotary switch; the axial groove has an unlocking inner wall and a locking inner wall arranged opposite to each other along the circumference of the female connector;

[0027] When the rotary switch is in the unlocked state, the second limit portion abuts against the unlocked inner wall along the circumferential direction of the rotary switch; when the rotary switch is in the locked state, the second limit portion abuts against the locked inner wall along the circumferential direction of the rotary switch.

[0028] In some embodiments, the rotary switch is sleeved outside the male connector, and the elastic reset member is disposed between the male connector and the rotary switch;

[0029] A guide mounting groove is provided on one of the inner peripheral wall of the male connector and the outer peripheral wall of the rotary switch, and a pushing portion is convexly provided on the other one. The elastic return member is installed in the guide mounting groove. The pushing portion is inserted into the guide mounting groove along the circumferential direction of the rotary switch and abuts against one end of the elastic return member.

[0030] The rotary switch can rotate circumferentially relative to the male connector, so that the elastic reset member can expand and contract along the circumferential direction of the rotary switch under the action of the pushing portion.

[0031] In some embodiments, a seal is provided between the male connector and the female connector.

[0032] The second technical problem mentioned above is solved by the following technical solution:

[0033] A range hood comprising a wire box and a power cord structure as described in any of the above solutions;

[0034] The electrical box is formed by enclosing a plurality of panels, one of the panels is provided with a through hole, the female connector is arranged through the through hole, the anti-loosening part abuts against the outer side surface of the panel, and the limiting protrusion abuts against the inner side surface of the panel.

[0035] Compared with the background technology, the range hood provided by the utility model has the following beneficial effects: the range hood uses the above-mentioned power cord structure to divide the entire power cord into two parts, namely a first power cord connected to the female connector and a second power cord connected to the male connector, and the first power cord and the second power cord are electrically connected by plugging the male connector and the female connector; no matter which of the first power cord and the second power cord is damaged, it can be quickly replaced, thereby improving the maintenance efficiency of the power cord; and since the entire power cord is divided into two parts, only the damaged section needs to be replaced, and there is no need to replace the entire power cord, thereby reducing maintenance costs. In addition, the end of the female connector away from the first power cord is passed through the hole on the panel and threadedly connected to the anti-loosening piece to clamp the panel between the limiting protrusion and the anti-loosening piece, thereby achieving the tightening of the female connector. The female connector has better stability, effectively achieving the contact between the power cord and the main control board in the electrical box, which is not easy to loosen, thereby improving the safety of use. When the female connector and the first power cord are damaged, only the male connector needs to be pulled out, and the anti-loosening piece needs to be screwed out to separate the anti-loosening piece from the female connector. The female connector and the first power cord can be removed. The disassembly of the female connector is simple and quick. At the same time, no screws are required to fix the female connector and the electrical box, thereby improving the assembly and maintenance efficiency of the power cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0037] Figure 1 This is a structural diagram of a wire box with a power cord structure installed provided by an embodiment of the present utility model;

[0038] Figure 2 yes Figure 1 Middle AA section view;

[0039] Figure 3 This is a schematic diagram of the disassembled power cord structure provided by an embodiment of the utility model;

[0040] Figure 4 This is a schematic structural diagram of a male connector provided by an embodiment of the present utility model;

[0041] Figure 5 This is a schematic structural diagram of a female connector provided by an embodiment of the present utility model;

[0042] Figure 6 It is a structural schematic diagram of a rotary switch provided by an embodiment of the utility model.

[0043] In the picture:

[0044] 1. First power cord; 11. First wire core; 2. Second power cord;

[0045] 3. Male connector; 31. Connecting protrusion; 32. Avoidance groove; 321. Slot division; 33. Wire core slot; 34. Second anti-mistake feature; 35. Guide installation groove;

[0046] 4. Female connector; 41. Position-limiting protrusion; 42. Position-limiting groove; 421. Axial groove; 4211. Unlocking inner wall; 4212. Locking inner wall; 422. Circumferential groove; 43. First foolproofing member; 44. Separator; 45. Insertion slot;

[0047] 5. Anti-loosening parts;

[0048] 6. Rotary switch; 61. First limiter; 62. Pusher; 63. Second limiter; 64. Rotation direction indicator;

[0049] 7. Elastic reset element; 8. Sealing element;

[0050] 10. Electrical box; 101. Panel. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0052] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0053] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0054] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0055] like Figures 1 to 3 As shown, an embodiment of the utility model provides a power cord structure, which includes a first power cord 1, a second power cord 2, a female connector 4, a male connector 3 and an anti-loosening member 5, wherein one end of the female connector 4 is connected to the first power cord 1 and the outer peripheral surface of the end is convexly provided with a limiting protrusion 41; one end of the male connector 3 is connected to the second power cord 2, and the other end of the male connector 3 and the other end of the female connector 4 are axially plugged in to electrically connect the first power cord 1 and the second power cord 2; the anti-loosening member 5 is sleeved on the end of the female connector 4 away from the first power cord 1, and the anti-loosening member 5 is threadedly connected to the female connector 4, and the anti-loosening member 5 is arranged on one side of the limiting protrusion 41 at intervals along the axial direction of the female connector 4, and a clamping structure is formed between the anti-loosening member 5 and the limiting protrusion 41.

[0056] The power cord structure divides the entire power cord into two parts, namely a first power cord 1 connected to the female connector 4 and a second power cord 2 connected to the male connector 3. The first power cord 1 and the second power cord 2 are electrically connected by plugging the male connector 3 and the female connector 4. No matter which of the first power cord 1 and the second power cord 2 is damaged, it can be quickly replaced, thereby improving the maintenance efficiency of the power cord. Moreover, since the entire power cord is divided into two parts, only the damaged section needs to be replaced, and there is no need to replace the entire power cord, thereby reducing maintenance costs. In addition, when the power cord structure is used, for example, when an electrical box 10 that needs to be connected to an external power supply is used, the end of the female connector 4 away from the first power cord is passed through the hole on the panel 101 of the electrical box 10 and then threadedly connected to the anti-loosening part 5. The anti-loosening part 5 and the limiting protrusion 41 jointly clamp the panel 101 of the electrical box 10, thereby achieving the tightening of the female connector 4, making the female connector 4 more stable, and effectively achieving the contact between the power cord and the main control board in the electrical box 10 that is not easy to loosen, thereby improving the safety of use. When the female connector 4 and the first power cord 1 are damaged, it is only necessary to pull out the male connector 3 and screw the anti-loosening part 5 to separate the anti-loosening part 5 from the female connector 4, and then the female connector 4 and the first power cord 1 can be removed. The disassembly of the female connector 4 is simple and quick; at the same time, no screws are required to be used for fixing during the connection between the female connector and the electrical box, thereby improving the assembly and maintenance efficiency of the power cord.

[0057] In some embodiments, as Figure 4 and Figure 5 As shown, the end of the female connector 4 away from the first power cord 1 is provided with a groove, and a separator 44 is provided in the groove. The separator 44 divides the inner cavity of the groove into multiple circumferentially spaced insertion grooves 45. The end of the male connector 3 away from the second power cord 2 is provided with an insertion protrusion 31 that can be inserted into the insertion groove 45. An avoidance groove 32 for the separator 44 to be inserted is formed between two adjacent insertion protrusions 31. The multiple insertion protrusions 31 and the multiple insertion grooves 45 are plugged in one by one. The insertion and mating of the separator 44 and the avoidance groove 32 along the axial direction of the female connector 4, as well as the insertion and mating of the insertion protrusion 31 and the insertion groove 45 along the axial direction of the female connector 4, position the male connector 3 and the female connector 4, and improve the insertion stability.

[0058] For example, the insertion groove 45 has a fan-shaped cross-section perpendicular to the axial direction of the female connector 4. There are three insertion grooves 45, corresponding to three insertion protrusions 31. The avoidance groove 32 includes multiple groove sections 321 extending from the center of the male connector 3 to the outer peripheral wall of the male connector 3. It should be noted that the insertion groove 45 can also have a fan-shaped, triangular, or trapezoidal cross-section perpendicular to the axial direction of the female connector 4.

[0059] In some embodiments, as Figures 3 to 5As shown, one end of the first power cord 1 is formed with multiple first cores 11, and the multiple first cores 11 extend into the plug-in slot 45 from the bottom of different plug-in slots 45 respectively. One end of the second power cord 2 is formed with multiple second cores corresponding to the multiple first cores 11 one by one, and the multiple second cores are respectively fixed in different plug-in protrusions 31. The first core 11 can be plugged into the plug-in protrusion 31 and electrically contact with the corresponding second core.

[0060] Specifically, the plug-in protrusion 31 is provided with a core slot 33. The plurality of second cores are inserted into the corresponding plug-in protrusions 31 in a one-to-one correspondence and extend through the bottom wall of the core slot 33 on the plug-in protrusion 31. When the male connector 3 and the female connector 4 are plugged together, the first core 11 is inserted into the corresponding core slot 33 and electrically contacts the corresponding second core. The core slot 33 guides the insertion of the first core 11 and prevents the first core 11 from tilting.

[0061] In some embodiments, the female connector 4 and the male connector 3 are both integrally formed structural members, the first wire core 11 is injection-molded and fixed to the female connector 4, and the second wire core is injection-molded and fixed to the male connector 3. The connection method is simple and low-cost.

[0062] In some embodiments, as Figure 4 and Figure 5 As shown, the inner wall of the groove is provided with a first foolproof member 43, and the outer wall of the male connector 3 is provided with a second foolproof member 34. The first foolproof member 43 and the second foolproof member 34 are plugged into each other. This allows the first wire core 11 to be electrically connected to the corresponding second wire core, preventing the male connector 3 and the female connector 4 from being plugged in incorrectly.

[0063] Exemplarily, the first anti-idiot part 43 is a raised structure protruding from the inner circumferential wall of the groove, and the two ends of the first anti-idiot part 43 along the circumference of the female connector 4 are respectively located in two adjacent plug-in grooves 45, and the second anti-idiot part 34 is a groove structure recessed from the outer circumferential wall of the male connector 3, and the two ends of the second anti-idiot part 34 along the circumference of the male connector 3 are respectively located on two adjacent plug-in protrusions 31.

[0064] It should be noted that the first foolproofing member 43 and the second foolproofing member 34 are not limited to the above-described structures. The first foolproofing member 43 can also be configured as a slot structure, and the second foolproofing member 34 can be configured as a protrusion structure. The shapes of one of the insertion slots 45 and the corresponding insertion protrusion 31 can also be limited to achieve a foolproofing effect. Other foolproofing structures can also be used, which will not be described in detail here.

[0065] In some embodiments, as Figures 3 to 6As shown, the power cord structure also includes a rotary switch 6. One end of the rotary switch 6 is connected to the male connector 3 and is restricted from axial movement relative to the male connector 3. The other end is sleeved outside the female connector 4. The rotary switch 6 can rotate circumferentially relative to the female connector 4 to switch between an unlocked state and a locked state. In the unlocked state, the rotary switch 6 can move axially relative to the female connector 4, allowing one end of the female connector 4 to enter and exit the rotary switch 6. In the locked state, the rotary switch 6 is restricted from axially separating from the female connector 4.

[0066] Specifically, the inner circumferential wall of the rotary switch 6 is provided with a first stopper 61. The outer circumferential wall of the female connector 4 is provided with a circumferential groove 422 extending circumferentially along the female connector 4, and an axial groove 421 extending axially along the female connector 4. One end of the axial groove 421 extends to the axial end surface of the female connector 4, and the other end of the axial groove 421 connects with one end of the circumferential groove 422. When the rotary switch 6 is unlocked, the first stopper 61 can slide within the axial groove 421. When the rotary switch 6 is locked, the first stopper 61 is retained within the circumferential groove 422 along the axial direction of the female connector 4.

[0067] The power cord structure further includes an elastic reset member. When the rotary switch 6 is in the locked state, the elastic reset member 7 releases elastic force to enable the first limiting portion 61 to enter and remain in the circumferential groove 422.

[0068] When the rotary switch 6 is in the unlocked state, the elastic return member 7 tightens its elastic force under the action of an external force, causing the first limiting portion 61 to exit the circumferential groove 422. It is understood that the direction of the external force is opposite to the direction of the elastic force, and the external force is greater than the elastic force, so as to overcome the elastic force of the elastic return member 7. Exemplarily, the limiting groove 42 is an L-shaped groove.

[0069] When the male connector 3 and the female connector 4 are axially plugged in, the first anti-mistake piece 43 and the second anti-mistake piece 34 can be aligned along the axial direction of the female connector 4, and then the male connector 3 is pushed along the axial direction of the female connector 4 to drive the rotary switch 6 axially close to the female connector 4, and the rotary switch 6 is rotated so that the first limiting portion 61 is aligned with the axial groove 421 along the axial direction of the rotary switch 6. During this process, the elastic reset member 7 is circumferentially squeezed; the male plug is continued to be pushed axially, and the first limiting portion 61 enters the axial groove 421. The first limiting portion 61 loses the circumferential limiting effect of the inner wall of the axial groove 421, and the elastic reset member 7 is automatically reset, so that the rotary switch 6 rotates circumferentially under the action of the elastic reset member 7, so that the first limiting portion 61 slides into the circumferential groove 422, so as to switch the rotary switch 6 from the unlocked state to the locked state. The first limiting portion 61 is limited in the circumferential groove 422 along the axial direction of the female connector 4, limiting the rotary switch 6 from detaching from the female connector 4 along its own axial direction, which can well prevent the male connector 3 from detaching from the female connector 4 when being pulled. Furthermore, the circumferential force applied by the elastic reset member 7 to the rotary switch 6 can keep the first limiting portion 61 in the circumferential groove 422 , thereby improving the connection stability between the rotary switch 6 and the female connector 4 .

[0070] When the male connector 3 and the female connector 4 need to be disassembled, an external force is applied to the rotary switch 6 to rotate the rotary switch 6 circumferentially. The first limiting portion 61 rotates along with the rotary switch 6 until the first limiting portion 61 exits the circumferential groove 422, thereby rotating the rotary switch 6 from the locked state to the unlocked state. Thereafter, the male connector 3 is pulled along the axial direction of the female connector 4 to move the male connector 3 axially away from the female connector 4. During this process, the first limiting portion 61 slides axially in the axial groove 421 until the first limiting portion 61 exits the axial groove 421, thereby pulling the male connector 3 out of the female connector 4.

[0071] In some embodiments, as Figures 3 to 6 As shown, the inner circumferential wall of the rotary switch 6 is provided with a second stopper 63, which extends axially along the rotary switch 6. The first stopper 61 is connected to the second stopper 63, and both the first stopper 61 and the second stopper 63 are distributed along the circumference of the rotary switch 6. The second stopper 63 can slide within the axial groove 421 along the axial direction of the rotary switch 6. The second stopper 63 can also slide within the axial groove 422 along the circumference of the rotary switch 6. The axial groove 421 has a locking inner wall 4212 and an unlocking inner wall 4211, which are arranged opposite each other along the circumference of the rotary switch 6.

[0072] When the rotary switch 6 is switched from the unlocked state to the locked state, the rotary switch 6 rotates circumferentially under the action of the elastic return member 7, causing the first limit portion 61 to gradually slide into the circumferential groove 422. The second limit portion 63 also rotates circumferentially with the rotary switch 6 and continuously approaches the locked-in-place inner wall 4212. When the second limit portion 63 abuts against the locked-in-place inner wall 4212 along the circumference of the rotary switch 6, the rotary switch 6 will be unable to continue rotating. At this time, the first limit portion 61 has completely entered the circumferential groove 422. The first limit portion 61 is limited in the circumferential groove 422 under the action of the elastic return member 7, and the rotary switch 6 is switched to the locked state.

[0073] During the process of switching the rotary switch 6 from the locked state to the unlocked state, the rotary switch 6 rotates circumferentially, the first limit portion 61 continuously exits the circumferential groove 422, and the second limit portion 63 follows the circumferential rotation of the rotary switch 6 and continuously approaches the unlocked position inner wall 4211. When the second limit portion 63 abuts against the unlocked position inner wall 4211, the first limit portion 61 has completely exited the circumferential groove 422. At this time, the rotary switch 6 switches to the unlocked state, and the rotary switch 6 cannot continue to rotate, to prompt the user that the rotary switch 6 has switched to the unlocked state, and the male connector 3 can be pulled axially to separate the male connector 3 from the female connector 4.

[0074] Exemplarily, the first limiting portion 61 and the second limiting portion 63 are integrally formed on the rotary switch 6 .

[0075] In some embodiments, as Figure 4 and Figure 5 As shown, there are multiple first limiting portions 61, which are spaced apart along the circumference of the rotary switch 6, and the limiting grooves 42 are arranged one-to-one with the first limiting portions 61. This can improve the stability of the male connector 3 and the female connector 4 after connection.

[0076] Exemplarily, three first limiting portions 61 are provided, and the three first limiting portions 61 are evenly spaced along the circumference of the rotary switch 6 , and three limiting grooves 42 are provided.

[0077] In some embodiments, as Figures 3 to 6 As shown, the rotary switch 6 is sleeved on the outside of the male connector 3, and the elastic return member 7 is provided between the male connector 3 and the rotary switch 6; one of the inner circumferential wall of the male connector 3 and the outer circumferential wall of the rotary switch 6 is provided with a guide mounting groove 35, and the other is provided with a protruding push portion 62. The elastic return member 7 is installed in the guide mounting groove 35, and the push portion 62 is inserted into the guide mounting groove 35 along the circumferential direction of the rotary switch 6 and abuts against one end of the elastic return member 7; the rotary switch 6 can rotate circumferentially relative to the male connector 3, so that the elastic return member 7 can be extended and retracted along the circumferential direction of the rotary switch 6 under the action of the push portion 62. For example, the inner circumferential wall of the male connector 3 is provided with a guide mounting groove 35, and the inner circumferential wall of the rotary switch 6 is provided with a protruding push portion 62.

[0078] When an external force is applied to the rotary switch 6, causing it to rotate circumferentially relative to the male connector 3, the pusher 62 exerts a force on the elastic reset member 7, causing it to be continuously compressed. After the external force on the rotary switch 6 is removed, the elastic reset member 7 automatically resets and exerts a circumferential force on the pusher 62, causing it to rotate and reset the connected rotary switch 6 relative to the male connector 3.

[0079] In some embodiments, as Figures 3 to 6 As shown, the pushing portion 62 is slidably arranged in the guide mounting groove 35 along the circumference of the rotary switch 6. Not only can the pushing portion 62 and the elastic reset member 7 cooperate to achieve circumferential rotational reset of the rotary switch 6, but the circumferential rotation of the rotary switch 6 can also be guided by the sliding cooperation between the pushing portion 62 and the guide mounting groove 35.

[0080] It should be noted that, the elastic return member 7 can be provided in one, two, or more numbers, which is not specifically limited here.

[0081] In some embodiments, as Figure 3 As shown, the outer peripheral surface of the rotary switch 6 is provided with a rotation direction mark 64 to indicate the rotation direction from the locked state to the unlocked state, and the rotation direction from the unlocked state to the locked state, so as to facilitate operation of the rotary switch 6 according to the prompt.

[0082] In some embodiments, as Figure 2 As shown, a seal 8 is provided between the male connector 3 and the female connector 4, which can prevent external water vapor from entering the interior of the male connector 3 and the female connector 4 through the contact surface between the male connector 3 and the female connector 4, thereby avoiding leakage.

[0083] In some embodiments, the present invention further provides a range hood comprising an electrical wiring box 10 and the aforementioned power cord structure. The electrical wiring box 10 is enclosed by multiple panels 101. One panel 101 is provided with a through-hole through which a female connector 4 is disposed. A clamping structure consisting of a locking member 5 and a retaining protrusion 41 can be used to clamp the panel 101 between the locking member 5 and the retaining protrusion 41. Specifically, the locking member 5 abuts the outer side of the panel 101, and the retaining protrusion 41 abuts the inner side of the panel 101. This range hood has the same beneficial effects as the aforementioned power cord structure and will not be repeated here.

[0084] Furthermore, the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A power line structure, It is characterized in that include: A first power line (1) and a second power line (2); A female connector (4), one end of the female connector (4) being connected to the first power line (1), and a limiting protrusion (41) being convexly provided on the outer peripheral surface of the end; A male connector (3), one end of the male connector (3) being connected to the second power cord (2), and the other end of the male connector (3) and the other end of the female connector (4) being axially plugged into each other to electrically connect the first power cord (1) and the second power cord (2); An anti-loosening member (5), wherein the anti-loosening member (5) is sleeved on one end of the female connector (4) away from the first power cord (1), the anti-loosening member (5) is threadedly connected to the female connector (4), and the anti-loosening member (5) is arranged at intervals along the axial direction of the female connector (4) on one side of the limiting protrusion (41), and a clamping structure is formed between the anti-loosening member (5) and the limiting protrusion (41).

2. The power line structure according to claim 1, It is characterized in that The end of the female connector (4) away from the first power cord (1) is provided with a groove, and a partition (44) is provided in the groove. The partition (44) divides the inner cavity of the groove into a plurality of circumferentially spaced plug-in slots (45). The end of the male connector (3) away from the second power cord (2) is provided with a plug-in protrusion (31) that can be inserted into the plug-in slot (45), and an avoidance groove (32) for the partition (44) to be inserted is formed between two adjacent plug-in protrusions (31). The plurality of plug-in protrusions (31) and the plurality of plug-in slots (45) are plugged in one-to-one.

3. The power line structure according to claim 2, It is characterized in that One end of the first power line (1) is formed with a plurality of first wire cores (11), and the plurality of first wire cores (11) respectively extend into the plugging slot (45) from the bottom of different plugging slots (45); One end of the second power cord (2) is formed with a plurality of second cores, the plurality of second cores being respectively fixed in different plug-in protrusions (31), and the first core (11) can be plugged into the plug-in protrusion (31) and electrically contact the corresponding second core.

4. The power line structure according to claim 2, It is characterized in that The inner peripheral wall of the groove is provided with a first foolproof part (43), and the outer peripheral wall of the male connector (3) is provided with a second foolproof part (34), and the first foolproof part (43) and the second foolproof part (34) are plug-fitted.

5. The power line structure according to claim 1, It is characterized in that The power cord structure further comprises a rotary switch (6), one end of which is connected to the male connector (3) and is restricted from axial movement relative to the male connector (3), and the other end of which is sleeved outside the female connector (4); The rotary switch (6) is capable of circumferentially rotating relative to the female connector (4) so ​​that the rotary switch (6) is switched between an unlocked state and a locked state; When the rotary switch (6) is in the unlocked state, the rotary switch (6) can move axially relative to the female connector (4) so ​​that one end of the female connector (4) can enter and exit the rotary switch (6); when the rotary switch (6) is in the locked state, the rotary switch (6) is restricted from detaching from the female connector (4) along its own axial direction.

6. The power line structure according to claim 5, It is characterized in that The inner peripheral wall of the rotary switch (6) is provided with a first limiting portion (61); the outer peripheral wall of the female connector (4) is provided with a circumferential groove (422) extending in the circumferential direction of the female connector (4), and an axial groove (421) extending in the axial direction of the female connector (4); one end of the axial groove (421) extends to the axial end surface of the female connector (4), and the other end of the axial groove (421) is connected to one end of the circumferential groove (422); When the rotary switch (6) is in the unlocked state, the first limiting portion (61) can slide in the axial groove (421); when the rotary switch (6) is in the locked state, the first limiting portion (61) is limited in the circumferential groove (422) along the axial direction of the female connector (4); The power cord structure further comprises an elastic return member (7), and when the rotary switch (6) is in a locked state, the elastic return member (7) releases elastic force to enable the first limiting portion (61) to enter and remain in the circumferential groove (422); When the rotary switch (6) is in an unlocked state, the elastic return member (7) tightens the elastic force under the action of an external force, so that the first limiting portion (61) withdraws from the circumferential groove (422).

7. The power line structure according to claim 6, It is characterized in that The inner peripheral wall of the rotary switch (6) is provided with a second limiting portion (63) extending in the axial direction of the rotary switch (6); the first limiting portion (61) is connected to the second limiting portion (63); and the first limiting portion (61) and the second limiting portion (63) are both distributed in the circumferential direction of the rotary switch (6); The second limiting portion (63) can slide in the axial groove (421) along the axial direction of the rotary switch (6), and the second limiting portion (63) can also slide in the axial groove (421) along the circumferential direction of the rotary switch (6); the axial groove (421) has an unlocking inner wall (4211) and a locking inner wall (4212) which are arranged opposite to each other along the circumferential direction of the female connector (4); When the rotary switch (6) is in the unlocked state, the second limit portion (63) abuts against the unlocked inner wall (4211) along the circumference of the rotary switch (6); when the rotary switch (6) is in the locked state, the second limit portion (63) abuts against the locked inner wall (4212) along the circumference of the rotary switch (6).

8. The power line structure according to claim 6, It is characterized in that The rotary switch (6) is sleeved outside the male connector (3), and the elastic reset member (7) is arranged between the male connector (3) and the rotary switch (6); A guide installation groove (35) is provided on one of the inner peripheral wall of the male connector (3) and the outer peripheral wall of the rotary switch (6), and a pushing portion (62) is convexly provided on the other, the elastic reset member (7) is installed in the guide installation groove (35), and the pushing portion (62) is inserted into the guide installation groove (35) along the circumferential direction of the rotary switch (6) and abuts against one end of the elastic reset member (7); The rotary switch (6) can rotate circumferentially relative to the male connector (3), so that the elastic reset member (7) can be extended and retracted along the circumferential direction of the rotary switch (6) under the action of the pushing portion (62).

9. The power line structure according to any one of claims 1 to 8, It is characterized in that A sealing member (8) is provided between the male connector (3) and the female connector (4).

10. A range hood, It is characterized in that It comprises a wire box (10), and a power cord structure as claimed in any one of claims 1 to 9; The electrical wire box (10) is formed by enclosing a plurality of panels (101); a through hole is provided on one of the panels (101); the female connector (4) passes through the through hole; the anti-loosening member (5) abuts against the outer side surface of the panel (101); and the limiting protrusion (41) abuts against the inner side surface of the panel (101).

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