Electric appliance box

Abstract

The utility model relates to an electric appliance box, which comprises a box body, a circuit board and a wire clamp, the circuit board is connected in the box body through a fixing piece, and a mounting gap is formed between the circuit board and the box body; the wire clamp is arranged in the mounting gap, the wire clamp comprises a first pressing plate piece and a second pressing plate piece, and at least one first wire slot part is formed on the first pressing plate piece; one end of the second pressing plate piece is hinged to the first pressing plate piece, the other end of the second pressing plate piece is connected with the first pressing plate piece in a buckled mode, second wire groove parts in one-to-one correspondence with the first wire groove parts are formed in the second pressing plate piece, the first wire groove parts and the second wire groove parts form limiting holes, and the wire harness is connected into the limiting holes; the wire harness is fixed on the circuit board through the wire clamp, and the wire harness and the electrical components are respectively positioned on two sides, so that the abrasion between the electrical components and the wire harness can be avoided, the safety is higher, the electromagnetic interference of the electrical components to the wire harness is avoided, the stability of electrical operation is higher, the wire harness is restrained by the wire clamp, the wiring is more orderly, and the operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning equipment technology, and in particular relates to an electrical box. Background Technology

[0002] In some industries and scenarios, there is a demand for miniaturization of the overall size of air conditioning equipment, and the corresponding electrical system layout of air conditioning equipment will also develop towards compactness and integration.

[0003] To reduce the size of the equipment, some of the external wiring harnesses of the electrical components on the circuit board inside the electrical box are routed from above the circuit board. The electrical components are densely arranged, and the wiring harnesses often come into contact with the electrical components on the circuit board when they run from above. When the air conditioning equipment is running, vibrations occur, and there is a risk of wear between the wiring harnesses and the electrical components. In addition, the electrical components can also generate electromagnetic interference to the wiring harnesses, affecting the stability of electrical operation.

[0004] If the traces are routed from the back of the circuit board, the close proximity between the circuit board and the electrical box, along with the presence of many sharp pins related to the installation of electrical components, can cause the wire harness to touch the bottom mounting plate or pins, resulting in wear and tear and creating a safety hazard. Utility Model Content

[0005] The purpose of this utility model is to provide an electrical box to solve the problems in the prior art, such as the large space required for the wiring harness of electrical components inside the electrical box, wear between the harness and the electrical components, electromagnetic interference from the electrical components, and poor electrical operation stability.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] This utility model proposes an electrical box, which includes:

[0008] The box body has an internal mounting cavity formed therein;

[0009] A circuit board is connected to the mounting cavity by a fastener, and a mounting gap is formed between the circuit board and the housing under the action of the fastener; an electrical component is provided on one side of the circuit board, and the electrical component is used to connect the wiring harness.

[0010] A wire clamp, disposed within the mounting gap, the wire clamp comprising:

[0011] The first pressure plate has at least one first groove portion formed thereon;

[0012] The second pressure plate has one end hinged to the first pressure plate and the other end snapped to the first pressure plate. The second pressure plate has a second groove portion that corresponds one-to-one with the first groove portion. The first groove portion and the second groove portion form a limiting hole. The limiting hole is used to connect the wire harness to the other side of the circuit board.

[0013] In some embodiments of this application, two or more wire clips are spaced apart within the mounting gap along the length of the circuit board.

[0014] Using multiple wire clamps to constrain the wire harness helps to improve the neatness of the wire harness routing and enhance the positioning effect of the wire harness.

[0015] In some embodiments of this application, the length direction of the wire clamp is perpendicular to the length direction of the circuit board, and two or more limit holes are formed along the length direction of the wire clamp.

[0016] The wire clamp is equipped with multiple limiting holes, which helps to constrain multiple wire harnesses.

[0017] In some embodiments of this application, a connecting portion is formed on the first pressure plate member extending in a direction away from the second pressure plate member, and a plug hole is formed on the circuit board, wherein the connecting portion is plugged into the corresponding plug hole.

[0018] The wire clamp is fixed to the circuit board through the connecting part, thereby realizing the connection between the wire harness and the circuit board.

[0019] In some embodiments of this application, a stop portion is formed on the connecting portion, and the stop portion is snapped onto the side of the circuit board away from the wire clamp to prevent the connecting portion from coming out of the plug hole.

[0020] As the connecting part connects from one side of the circuit board to the other, the stop part on the connecting part retracts inward toward the connecting part when it is connected to the insertion hole. After passing through the insertion hole, the stop part expands outward and resets, fixing the connecting part on the insertion hole.

[0021] In some embodiments of this application, the first pressure plate and the second pressure plate are further provided with weight-reducing holes to reduce the weight of the first pressure plate and the second pressure plate.

[0022] The weight-reducing holes are designed to reduce the overall weight of the wire clamp.

[0023] In some embodiments of this application, a snap-fit ​​portion is formed on the first pressure plate member, and a snap-fit ​​portion is formed on the second pressure plate member. The snap-fit ​​portion and the snap-fit ​​portion are connected to each other to realize the opening and closing of the first pressure plate member and the second pressure plate member.

[0024] In some embodiments of this application, a guide slope is formed on the latching portion, and a snap-fit ​​end face is formed at the top of the guide slope. The latching portion is configured to move below the snap-fit ​​portion under the action of the guide slope, so that the snap-fit ​​portion is connected to the snap-fit ​​end face.

[0025] In some embodiments of this application, the first pressure plate is further provided with an operating part for convenient hand-held operation by an operator.

[0026] During the opening and closing of the online clamp, the user holds the operating unit to engage or disengage the first and second pressure plates, making it more convenient and faster.

[0027] In some embodiments of this application, the fixing member includes a fixing leg and a fastener. The fixing leg is fixed to the housing. A connection hole is formed at one end of the fixing leg that contacts and connects with the circuit board. A fastening hole is formed on the circuit board. The fastener passes through the corresponding fastening hole and is fixed into the connection hole to realize the connection and fixation between the circuit board and the housing.

[0028] The height of the fixed support foot is matched with the height of the installation gap. The fixed support foot provides support for the circuit board, and the fasteners fix the circuit board on the fixed support foot, thus fixing the position of the circuit board.

[0029] This application also proposes an electrical box, which includes:

[0030] The box body has an internal mounting cavity formed therein;

[0031] A circuit board is connected to the mounting cavity by a fastener, and a mounting gap is formed between the circuit board and the housing under the action of the fastener; electrical components are provided on the circuit board, and the electrical components are externally connected to wiring harnesses;

[0032] A wire clamp is disposed within the mounting gap. The wire clamp includes a first pressure plate and a second pressure plate, and at least one limiting hole is formed between the first pressure plate and the second pressure plate. The limiting hole is configured to provide a limiting position for the wire harness.

[0033] Compared with the prior art, the advantages and positive effects of this utility model are:

[0034] The electrical box proposed in this application has an installation gap between its body and the circuit board. The external wiring harness of the electrical components on the circuit board runs through the installation gap. In order to position the wiring harness, a wire clamp is provided in the installation gap. The wire clamp includes a first pressure plate and a second pressure plate. In the closed state, a limiting hole is formed between the first pressure plate and the second pressure plate. In the open state of the first pressure plate and the second pressure plate, the wiring harness is released from the limiting hole.

[0035] The small size of the wire clamps does not significantly affect the overall size of the electrical box. By fixing the wire harness to the circuit board and placing it on opposite sides of the electrical components, wear between the components and the wire harness can be avoided, resulting in higher safety. Furthermore, the wire clamps prevent electromagnetic interference from the components, leading to higher stability in electrical operation. The wire clamps also provide constraint on the wire harness, resulting in neater wiring and easier operation.

[0036] Other features and advantages of this utility model will become clearer after reading the specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the circuit board and electrical box assembly structure according to an embodiment;

[0039] Figure 2 According to Figure 1 A structural breakdown diagram;

[0040] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram;

[0041] Figure 4 for Figure 1 Schematic diagram of the end face structure;

[0042] Figure 5 This is a diagram of the wire clamp connection structure;

[0043] Figure 6 This is a schematic diagram showing the separation of the wire clamp and the circuit board.

[0044] Figure 7 This is a diagram showing the connection structure between the connector and the circuit board.

[0045] Figure 8 This is a perspective view of the wire clamp in the open state according to the embodiment;

[0046] Figure 9 This is a plan view of the wire clamp in the open position.

[0047] Figure 10 A 3D view of the clamp in the closed state;

[0048] Figure 11 This is a plan view of the clamp in its closed state;

[0049] Figure label:

[0050] 100. Circuit board; 110. Electrical component; 120. Wire harness; 130. Fastening hole; 140. Plug-in hole;

[0051] 200. Box body; 210. Support foot fixing holes;

[0052] 300. Fixing component; 310. Fixing leg; 311. Fastener; 320. Leg protrusion;

[0053] 400. Wire clamp; 401. Limiting hole; 402. Weight reduction hole;

[0054] 410. First pressure plate; 411. First groove section; 412. Buckling section; 4121. Guide slope; 4122. Snap-fit ​​end face; 413. Operating section;

[0055] 420. Second pressure plate; 421. Second groove section; 422. Snap-fit ​​section;

[0056] 430. Connecting part; 431. Stop part. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0063] refer to Figure 1 , Figure 4 This utility model proposes an electrical box, which includes a box body 200, a circuit board 100 and a wire clamp 400. An installation cavity is formed inside the box body 200, and the circuit board 100 is connected to the installation cavity through a fixing member 300.

[0064] Specifically, under the action of the fastener 300, an installation gap is formed between the circuit board 100 and the housing 200, and an electrical component 110 is provided on the circuit board 100, with an external wiring harness 120 for the electrical component 110.

[0065] In other words, the fasteners 300 are located at the four corners of the circuit board 100. The fasteners 300 themselves have a certain height, and the two ends of the fasteners 300 are respectively connected to a plate of the circuit board 100 and the box 200, so that an installation gap is formed between the box 200 and the circuit board 100.

[0066] The wire clamp 400 is set in the installation gap. For ease of understanding, the side of the circuit board 100 where the electrical component 110 is installed is defined as the front and the other end as the back. The wire clamp 400 fixes the wire harness 120 to the back of the circuit board 100.

[0067] The wire clamp 400 has a small thickness, and the wire harness 120 is located on the back of the circuit board 100, so it will not have a significant impact on the overall size of the electrical box.

[0068] In addition, by fixing the wire harness 120 to the circuit board 100 with the wire clamp 400, and placing it on both sides of the electrical component 110, wear between the electrical component 110 and the wire harness 120 can be avoided, resulting in higher safety. Furthermore, the electrical component 110 can be prevented from causing electromagnetic interference to the wire harness 120, resulting in higher stability of electrical operation. The wire clamp 400 provides constraint on the wire harness 120, making the wiring neater and easier to operate.

[0069] refer to Figures 8-11 The wire clamp 400 includes a first pressure plate 410 and a second pressure plate 420. At least one first wire groove portion 411 is formed on the side of the first pressure plate 410 opposite to the second pressure plate 420, and a second wire groove portion 421 corresponding to the first wire groove portion 411 is formed on the side of the second pressure plate 420 opposite to the first pressure plate 410.

[0070] The diameters of the first groove portion 411 and the second groove portion 421 are adapted to the diameter of the wire harness 120 to provide constraint on the wire harness 120.

[0071] One end of the second pressure plate 420 is hinged to the first pressure plate 410, and the other end is snapped to the first pressure plate 410.

[0072] In some embodiments, the first pressure plate 410 and the second pressure plate 420 can be separate structures, with one end rotatably connected together by a pivot and the other end detachably connected by a snap-fit ​​connection.

[0073] Alternatively, in some other embodiments, the first pressure plate 410 and the second pressure plate 420 are an integral structure, formed by injection molding.

[0074] When the first pressure plate 410 and the second pressure plate 420 are closed, the first wire groove portion 411 and the second wire groove portion 421 form a limiting hole 401, and the wire harness 120 is connected in the limiting hole 401.

[0075] When the first pressure plate 410 and the second pressure plate 420 are in the open state, the first wire groove 411 and the second wire groove 421 separate, releasing the wire harness 120.

[0076] Combination Figure 5 In some embodiments of this application, two or more wire clips 400 are provided at intervals within the mounting gap along the length of the circuit board 100.

[0077] Using multiple wire clamps 400 to constrain the wire harness 120 helps to improve the neatness of the wire harness 120 routing and improve the positioning effect of the wire harness 120.

[0078] In some embodiments of this application, the length direction of the wire clamp 400 is perpendicular to the length direction of the circuit board 100, and two or more limit holes 401 are formed along the length direction of the wire clamp 400.

[0079] In other words, the first pressure plate 410 is provided with a plurality of first grooves 411 at intervals, and the second pressure plate 420 is provided with a plurality of second grooves 421 correspondingly. In the closed state, a plurality of limiting holes 401 are formed between the first pressure plate 410 and the second pressure plate 420.

[0080] The wire clamp 400 is provided with multiple limiting holes 401, which helps to constrain multiple wire harnesses 120, and can constrain multiple wire harnesses 120 connected to the electrical components 110 on the circuit board 100.

[0081] Combination Figure 6 , Figure 7 as well as Figure 8 In some embodiments of this application, a connecting portion 430 is formed on the first pressure plate member 410, extending in a direction away from the second pressure plate member 420, and a plug hole 140 is formed on the circuit board 100, and the connecting portion 430 is plugged into the corresponding plug hole 140.

[0082] In the installed state, the first pressure plate 410 is located on the side close to the circuit board 100, and a connecting portion 430 extending toward the circuit board 100 is formed on the first pressure plate 410 for connecting with the circuit board 100.

[0083] The wire clamp 400 is fixed to the circuit board 100 via the connecting part 430, thereby realizing the connection between the wire harness 120 and the circuit board 100.

[0084] In some embodiments of this application, please refer to the specific references. Figure 10 A stop portion 431 is formed on the connecting portion 430. The stop portion 431 is snapped onto the other side of the back clip 400 of the circuit board 100 to prevent the connecting portion 430 from coming out of the insertion hole 140.

[0085] As the connecting part 430 connects from one side of the circuit board 100 to the other side, the stop part 431 on the connecting part 430 retracts inward toward the connecting part 430 when it is connected to the insertion hole 140. After passing through the insertion hole 140, the stop part 431 expands outward and resets, fixing the connecting part 430 on the insertion hole 140.

[0086] Refer again Figure 8 In some embodiments of this application, the first pressure plate 410 and the second pressure plate 420 are also provided with weight reduction holes 402 to reduce the weight of the first pressure plate 410 and the second pressure plate 420.

[0087] The weight reduction hole 402 is designed to reduce the overall weight of the wire clamp 400, thereby reducing the weight of the entire electrical box.

[0088] refer to Figure 8 , Figure 11 In some embodiments of this application, a latching portion 412 is formed on the first pressure plate member 410, and a snap-fit ​​portion 422 is formed on the second pressure plate member 420. The latching portion 412 and the snap-fit ​​portion 422 are connected to each other to realize the opening and closing of the first pressure plate member 410 and the second pressure plate member 420.

[0089] In some embodiments of this application, a guide slope 4121 is formed on the latching portion 412, and a snap-fit ​​end face 4122 is formed on the top of the guide slope 4121. The latching portion 412 is configured to move under the action of the guide slope 4121 to the bottom of the snap-fit ​​portion 422 so that the snap-fit ​​portion 422 is connected to the snap-fit ​​end face 4122.

[0090] In some embodiments of this application, the first pressure plate 410 is further provided with an operating part 413 for convenient hand operation by the operator.

[0091] During the opening and closing of the online clamp 400, the user holds the operating unit 413 to engage or disengage the first pressure plate 410 and the second pressure plate 420, making it more convenient and faster.

[0092] The wire harness 120 moves from the opening side of the clamp 400 to the corresponding wire groove position. When closing, the user holds the operating part 413 to position the first pressure plate 410, and then fastens the second pressure plate 420 towards the first pressure plate 410. During the fastening process, the snap-fit ​​part 422 on the second pressure plate 420 contacts the guide slope 4121. As the snap-fit ​​part 422 continues to move, the guide slope 4121 expands outward until the snap-fit ​​part 422 moves to the inner side of the guide slope 4121 and connects with the snap-fit ​​end face 4122. At this time, the snap-fit ​​part 412 resets, the clamp 400 closes, and the wire harness 120 is fixed.

[0093] The end of the wire harness 120 extends from the through hole reserved on the circuit board 100 to the front side of the circuit board 100 and is connected to the electrical component 110. In order to improve the stability of the wire harness 120, the end of the wire harness 120 can also be soldered to the circuit board 100.

[0094] Refer again Figures 1-3 In some embodiments of this application, the fixing member 300 includes a fixing leg 310 and a fastener 311. The fixing leg 310 is fixed on the housing 200. A connection hole is formed at the end of the fixing leg 310 that contacts and connects with the circuit board 100. A fastening hole 130 is formed on the circuit board 100. The fastener 311 passes through the corresponding fastening hole 130 and is fixed into the connection hole to realize the connection and fixation between the circuit board 100 and the housing 200.

[0095] In some embodiments, the fastener 311 is a fastening screw, and a threaded hole is formed in the fastening hole 130, and the fastener 311 is threadedly connected to the threaded hole.

[0096] The height of the fixed support 310 is adapted to the height of the installation gap. The fixed support 310 provides support for the circuit board 100. The fastener 311 fixes the circuit board 100 on the fixed support 310 and fixes the position of the circuit board 100.

[0097] Specifically, the fixed foot 310 is cylindrical or other shapes, and the dimension of the fixed foot 310 along the cross section parallel to the circuit board 100 is larger than that of the fastening hole 130, so as to provide support for the circuit board 100.

[0098] The fixed support leg 310 has a support leg protrusion 320 at one end connected to the box body 200, and a support leg fixing hole 210 is formed at the corresponding position of the box body 200. The size of the support leg protrusion 320 is adapted to the support leg fixing hole 210. The support leg protrusion 320 is inserted into the corresponding support leg fixing hole 210. The support leg protrusion 320 and the support leg fixing hole 210 can be connected and fixed by interference fit, or they can be further fixed by adhesive.

[0099] This application also proposes an electrical box, which includes a box body 200, a circuit board 100, and a wire clamp 400.

[0100] An installation cavity is formed inside the box body 200.

[0101] The circuit board 100 is connected to the mounting cavity by the fastener 300. Under the action of the fastener 300, an installation gap is formed between the circuit board 100 and the housing 200. An electrical component 110 is provided on the circuit board 100, and an external wiring harness 120 is provided on the electrical component 110.

[0102] The wire clamp 400 is disposed within the installation gap. The wire clamp 400 includes a first pressure plate 410 and a second pressure plate 420. At least one limiting hole 401 is formed between the first pressure plate 410 and the second pressure plate 420. The limiting hole 401 is configured to provide a limit for the wire harness 120.

[0103] The specific structural design of the wire clamp 400 can adopt the following methods, or a combination of some of them.

[0104] Method 1:

[0105] The wire clamp 400 includes a first pressure plate 410 and a second pressure plate 420. The two ends of the first pressure plate 410 and the second pressure plate 420 are detachably connected. A first wire groove 411 is formed on the first pressure plate 410 and a second wire groove 421 is formed on the second pressure plate 420. The first wire groove 411 and the second wire groove 421 correspond one-to-one.

[0106] When the first pressure plate 410 and the second pressure plate 420 are closed, a limiting hole 401 is formed between the first groove portion 411 and the second groove portion 421, and the wire harness 120 is connected in the limiting hole 401.

[0107] The first pressure plate 410 of the wire clamp 400 is located on one side close to the circuit board 100. The first pressure plate 410 is connected to the back side of the circuit board 100, and an electrical component 110 is mounted on the other side of the circuit board 100.

[0108] The total height H of the wire clamp 400 is less than or equal to the distance between the circuit board 100 and the electrical box, and the difference is controlled within 0~1mm.

[0109] The wire clamp 400 has a small thickness, and the wire harness 120 is located on the back of the circuit board 100, which will not have a significant impact on the overall size of the electrical box. The wire clamp 400 fixes the wire harness 120 to the circuit board 100, and the wire harness 120 is located on both sides of the electrical component 110. This can avoid wear between the electrical component 110 and the wire harness 120, which is safer. It also avoids electromagnetic interference from the electrical component 110 to the wire harness 120, which is more stable in electrical operation. The wire clamp 400 provides a constraint on the wire harness 120, making the wiring neater and easier to operate.

[0110] The two ends of the first pressure plate 410 and the second pressure plate 420 can be detachably connected by fasteners 311, or they can be connected and fixed by snap-fit.

[0111] Method 2:

[0112] One end of the second pressure plate 420 is hinged to the first pressure plate 410, and the other end is snapped to the first pressure plate 410.

[0113] The first pressure plate 410 and the second pressure plate 420 can be separate structures, with one end rotatably connected together by a pivot and the other end detachably connected by a snap-fit ​​connection.

[0114] Alternatively, in some other embodiments, the first pressure plate 410 and the second pressure plate 420 are an integral structure formed by injection molding.

[0115] When the first pressure plate 410 and the second pressure plate 420 are in the open state, the first wire groove 411 and the second wire groove 421 separate, releasing the wire harness 120.

[0116] Along the length of the circuit board 100, multiple wire clips 400 are spaced apart within the mounting gap.

[0117] Using multiple wire clamps 400 to constrain the wire harness 120 helps to improve the neatness of the wire harness 120 routing and improve the positioning effect of the wire harness 120.

[0118] In some embodiments of this application, the length direction of the wire clamp 400 is perpendicular to the length direction of the circuit board 100, and a plurality of limiting holes 401 are formed along the length direction of the wire clamp 400.

[0119] In the closed state, a limiting hole 401 is formed between the first pressure plate 410 and the second pressure plate 420; in the open state of the first pressure plate and the second pressure plate, the wire harness 120 is released from the limiting hole 401.

[0120] The wire clamp 400 is provided with multiple limiting holes 401, which helps to constrain multiple wire harnesses 120, and can constrain multiple wire harnesses 120 connected to the electrical components 110 on the circuit board 100.

[0121] Method 3:

[0122] In some embodiments of this application, a connecting portion 430 is formed on the first pressure plate member 410, extending in a direction away from the second pressure plate member 420, and a plug hole 140 is formed on the circuit board 100, and the connecting portion 430 is plugged into the corresponding plug hole 140.

[0123] In the installed state, the first pressure plate 410 is located on the side close to the circuit board 100, and a connecting portion 430 extending toward the circuit board 100 is formed on the first pressure plate 410 for connecting with the circuit board 100.

[0124] The wire clamp 400 is fixed to the circuit board 100 via the connecting part 430, thereby realizing the connection between the wire harness 120 and the circuit board 100.

[0125] In some embodiments of this application, a stop portion 431 is formed on the connecting portion 430. The stop portion 431 is snapped onto the other side of the back clip 400 of the circuit board 100 to prevent the connecting portion 430 from coming out of the insertion hole 140.

[0126] As the connecting part 430 connects from one side of the circuit board 100 to the other side, the stop part 431 on the connecting part 430 retracts inward toward the connecting part 430 when it is connected to the insertion hole 140. After passing through the insertion hole 140, the stop part 431 expands outward and resets, fixing the connecting part 430 on the insertion hole 140.

[0127] The wire clamp 400 can constrain the displacement of the wire harness 120 in all directions, preventing vibration displacement from causing friction.

[0128] The wire clamp 400 has a simple structure and is easy to operate. It can constrain each degree of freedom of the wire harness 120, preventing electrical components 110 and other components from rubbing or colliding with the wire harness 120, thus ensuring higher safety and stable electrical operation.

[0129] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0130] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0131] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electrical box, characterized by, The utility model relates to an electric appliance box, comprising: a box body, an installation cavity is formed in the box body; a circuit board is connected in the installation cavity through a fixing piece, an installation gap is formed between the circuit board and the box body under the action of the fixing piece, one side of the circuit board is provided with an electric element, and the electric element is used for connecting a wire harness; a wire clamp is arranged in the installation gap, and the wire clamp comprises: a first pressing plate part, at least one first wire slot part is formed on the first pressing plate part; a second pressing plate part, one end of the second pressing plate part is hinged to the first pressing plate part, the other end of the second pressing plate part is buckled to the first pressing plate part, the second pressing plate part is formed with a second wire slot part corresponding to the first wire slot part, the first wire slot part and the second wire slot part form a limiting hole, and the limiting hole is used for connecting the wire harness to the other side of the circuit board.

2. The electric appliance box according to claim 1, wherein: two or more wire clamps are arranged in the installation gap along the length direction of the circuit board; and / or the length direction of the wire clamp is perpendicular to the length direction of the circuit board, and two or more limiting holes are formed along the length direction of the wire clamp.

3. The electric appliance box according to claim 1, wherein: the first pressing plate part is formed with a connecting part extending away from the second pressing plate part, the circuit board is formed with a plug hole, and the connecting part is plugged into the plug hole.

4. The electric appliance box according to claim 3, wherein: the connecting part is formed with a stop part, the stop part is clamped to the other side of the circuit board away from the wire clamp, and the stop part is used for preventing the connecting part from being pulled out of the plug hole.

5. The electric appliance box according to claim 1, wherein: the first pressing plate part and the second pressing plate part are further provided with lightening holes, and the lightening holes are used for reducing the weight of the first pressing plate part and the second pressing plate part.

6. The electric appliance box according to claim 1, wherein: the first pressing plate part is formed with a buckle part, the second pressing plate part is formed with a clamping part, the buckle part is connected to the clamping part in a matched mode, and the buckle part and the clamping part are used for opening and closing the first pressing plate part and the second pressing plate part.

7. The electric appliance box according to claim 6, wherein: the buckle part is formed with a guide inclined surface, the top of the guide inclined surface is formed with a clamping end surface, and the buckle part is configured to move below the clamping part under the action of the guide inclined surface, so that the clamping part is connected to the clamping end surface.

8. The electric appliance box according to claim 1, wherein: the first pressing plate part is further formed with an operation part, and the operation part is used for facilitating the hand operation of an operator.

9. The electric appliance box according to claim 1, wherein: the fixing piece comprises a fixing leg and a fastener, the fixing leg is fixed to the box body, one end of the fixing leg in contact with the circuit board is formed with a connecting hole, the circuit board is formed with a fastening hole, and the fastener is fixed to the connecting hole through the fastening hole, so as to realize the connection and fixation of the circuit board and the box body.

10. An electrical box, characterized by, a box body, an installation cavity is formed in the box body; ​ A circuit board is connected in the mounting inner cavity through a fixing member, and an installation gap is formed between the circuit board and the box body under the action of the fixing member; an electrical element is arranged on the circuit board, and the electrical element is connected with a wire harness; A wire clamp is arranged in the installation gap, and the wire clamp includes a first pressing plate member and a second pressing plate member; at least one limiting hole is formed between the first pressing plate member and the second pressing plate member, and the limiting hole is configured to limit the wire harness.

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