Insulating framework, electric machine and electric appliance comprising the same

Abstract

The application provides an insulating framework, a motor and an electrical product comprising the motor, relates to the technical field of motor equipment, and solves the technical problem of high motor power line fixing cost or quality hidden danger. The insulating framework comprises an insulating framework body; the insulating framework body is annular, an outer wall of the insulating framework body is provided with a power line notch and a bridge notch, the power line notch and the bridge notch can accommodate the power line to pass through; the power line notch has different cross-sectional areas on the inner and outer sides of the outer wall; after the power line passes through the bridge notch and the power line notch in sequence, the power line is fixed to the insulating framework body on the inner and outer sides of the outer wall. The power line passes through the bridge notch and the power line notch in sequence, and due to the different cross-sectional areas of the power line notch on the inner and outer sides, the operation of fixing the power line is simple, and the fixing effect is good and the cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor equipment, in particular to an insulation framework, a motor and an electrical product comprising the motor. BACKGROUND

[0002] A motor is a kind of rotary electric machine, which can convert electric energy into mechanical energy. Generally composed of two parts of motor stator and rotor; wherein, the motor stator is fixedly installed on the shell, generally with a coil, mainly to generate a rotating magnetic field, and the motor stator mainly comprises a stator core, a winding and an insulation framework. The insulation framework is an injection molding part provided at the end of the motor stator and having an overline structure design, which is used for insulating the stator core.

[0003] In the prior art, there are two ways to fix the motor power line: one is to use a circuit board process, and the power line is directly welded on the circuit board; the other is to rely on a strap to bind the power line to the insulation framework or other components.

[0004] The applicant finds that the prior art at least has the following technical problems:

[0005] The cost of fixing the motor power line by the circuit board process is high, and the binding effect by the strap is poor and has quality risks. SUMMARY

[0006] The purpose of the present application is to provide an insulation framework, a motor and an electrical product comprising the motor, to solve the technical problems of high cost or quality risks of fixing the motor power line in the prior art. The preferred technical solutions in the many technical solutions provided by the present application can produce many technical effects, which are described in detail below.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The insulation framework provided by the present application comprises an insulation framework body; the insulation framework body is annular, the outer wall of the insulation framework body is provided with a power line notch and a bridge notch, the power line notch and the bridge notch can accommodate the power line; the cross-sectional area of the power line notch on the inner and outer sides of the outer wall is different; the power line passes through the bridge notch and the power line notch in sequence, and is fixed with the insulation framework body on the inner and outer sides of the outer wall.

[0009] Optionally, the insulation framework further comprises a wire fixing clamp, the wire fixing clamp is divided into a first wire fixing clamp and a second wire fixing clamp, the first wire fixing clamp is integrally formed with the insulation framework body, and the second wire fixing clamp is separately provided.

[0010] Optionally, the outer wall of the insulating framework body is further provided with a bridge gap, which can accommodate at least one of the power lines.

[0011] Optionally, the power lines pass through the wire fixing clamp and the bridge gap in sequence, and then enter the power line gap from the outside of the outer wall and are fixed to the insulating framework body.

[0012] Optionally, the cross-sectional area of the power line gap on the outside of the outer wall is smaller than that on the inside of the outer wall.

[0013] Optionally, the bridge gap includes two gaps, which are respectively located on the two sides of the wire fixing clamp.

[0014] Optionally, the power line gap includes three gaps, which respectively correspond to the U-phase power line, the V-phase power line and the W-phase power line.

[0015] Optionally, two of the power line gaps are located on one side of the wire fixing clamp, and the two power line gaps have different heights on the outer wall.

[0016] Optionally, the first wire fixing clamp and the second wire fixing clamp are both provided with a wire outlet hole with a semicircular cross section, and the wire outlet hole can fix the power line after the first wire fixing clamp and the second wire fixing clamp are connected.

[0017] Optionally, the cross-sectional diameter of the wire outlet hole is smaller than that of the power line, and the wire outlet hole and the power line are in interference fit.

[0018] An electric machine, comprising a stator and a rotor, the stator comprising a stator core, an insulating framework and a stator winding, the insulating framework covering the outside of the stator core, and the stator winding being wound on the insulating framework, characterized in that the insulating framework is the above-mentioned insulating framework.

[0019] An electric appliance, comprising an electric machine, the electric machine being the above-mentioned electric machine.

[0020] Optionally, the electric appliance is an air conditioner, a washing machine or a refrigerator.

[0021] The above-mentioned any technical solution can at least produce the following technical effects:

[0022] The power line gap and the bridge gap are arranged on the motor insulation framework, the cross-sectional area of the power line gap is different on the inner and outer sides, the structure increases the friction between the power line and the power line gap, effectively prevents the power line from sliding out of the power line gap, meanwhile, part of the power line is fixed on the inner side of the outer wall, and the other part of the power line is fixed on the outer side of the outer wall, the friction between the power line and the insulation framework body is increased, the power line is better fixed, and the operation of fixing the power line is simple. Compared with fixing the power line by welding the circuit board, the cost is reduced, meanwhile, the problems of poor fixing effect and quality hidden danger caused by binding the power line with the cable tie are avoided, and the fixing effect is good and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, below the drawings needed to be used in the embodiments or the prior art description will be briefly introduced, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 is a schematic diagram of the connection of the power line and the insulation framework;

[0025] Figure 2 is a schematic diagram of the second wire fixing clamp;

[0026] Figure 3 is a schematic diagram of the insulation framework.

[0027] In the figure, 1 is an insulation framework body; 2 is an outer wall; 21 is a bridge gap; 22 is a power line gap; 221 is a U-phase gap; 222 is a V-phase gap; 223 is a W-phase gap; 24 is a total gap; 3 is a wire fixing clamp; 31 is a first wire fixing clamp; 311 is a guide column; 312 is a guide groove; 32 is a second wire fixing clamp; 321 is a guide hole; 322 is a boss; 33 is a wire outlet hole; 4 is a power line; 41 is a U-phase power line; 42 is a V-phase power line; 43 is a W-phase power line. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] The present application provides an insulation framework, such as Figure 1 , Figure 3As shown, the insulating framework body 1 is annular, and the outer wall 2 of the insulating framework body 1 is provided with a power line notch 22 and a bridge notch 21 capable of accommodating the power line 4 to pass through. The power line notch 22 has different cross-sectional areas on the inner and outer sides of the outer wall 2, which increases the friction between the power line 4 and the power line notch 22, effectively prevents the power line 4 from slipping out of the power line notch 22, and has better fixing effect. After the power line 4 passes through the bridge notch 21 and the power line notch 22, it is fixed with the insulating framework body 1 on the inner and outer sides of the outer wall 2. After the power line 4 passes through the bridge notch 21 and the power line notch 22, it is inserted into the insulating framework body 1 on the inner and outer sides of the outer wall 2. Part of the power line 4 is fixed on the inner side of the outer wall 2, and the other part of the power line 4 is fixed on the outer side of the outer wall 2. By this way of insertion, the friction between the power line 4 and the insulating framework body 1 is increased, and the power line 4 is better fixed. The structure of the power line notch 22 and the bridge notch 21 on the insulating framework body 1 realizes the fixation of the power line 4, which is simple to operate and has good fixing effect, and reduces the cost compared with the fixation by the circuit board welding, and avoids the problems of poor fixing effect and quality hidden danger caused by the fixing by the cable tie.

[0030] As an optional implementation, as shown in Figure 2 、 Figure 3 The insulating framework further includes a wire fixing clamp 3 for passing through and fixing the power line 4. The wire fixing clamp 3 is divided into a first wire fixing clamp 31 and a second wire fixing clamp 32. The first wire fixing clamp 31 is integrally formed with the insulating framework body 1, and the second wire fixing clamp 32 is separately provided. The first wire fixing clamp 31 is integrally formed with the insulating framework body 1, which shortens the production steps and reduces the production cost compared with the complete separate production of the wire fixing clamp 3 and the insulating framework body 1 and then assembling. At the same time, the second wire fixing clamp 32 is a separate piece, and the cooperation between the second wire fixing clamp 32 and the first wire fixing clamp 31 is simple, which is easier to operate and is convenient for fixing the power line 4.

[0031] As an optional implementation, as shown in Figure 3 The bridge notch 21 can accommodate at least one power line 4 to pass through, and the bridge notch 21 can pass through multiple power lines 4 to make it easier for the power line 4 to pass through the bridge notch 21 and then be fixed with each power line notch 22. The power line 4 passes through the wire fixing clamp 3 and the bridge notch 21, and then enters the power line notch 22 from the outer side of the outer wall 2 and is fixed with the insulating framework body 1. Here, the "outer" refers to the direction away from the geometric center of the insulating framework body 1 or the center of the stator core, and vice versa.

[0032] As an optional implementation, the cross-sectional area of the power cord notch 22 on the outer side of the outer wall 2 is smaller than the cross-sectional area on the inner side of the outer wall 2, and the cross-sectional area of the power cord notch 22 on the outer side is smaller, which increases the friction between the power cord 4 and the outer side of the power cord notch 22. This structure avoids the power cord 4 from being pulled out to the outer side, and facilitates better fixation of the power cord 4 at the position of the power cord notch 22.

[0033] As an optional implementation, as shown in Figure 1 , Figure 3 The bridge notches 21 include two, which are located on both sides of the wire clamp 3. The bridge notches 21 are located on both sides of the wire clamp 3 (as shown in Figure 1 , the two sides refer to the position of the insulating body 1 on both sides of the wire clamp 2 after the wire clamp 3 is connected to the insulating body 1), which facilitates the power cord 4 to pass through the wire clamp 3 on both sides and be fixed to the insulating skeleton. The power cord notch 22 includes three, and the corresponding motor of the insulating skeleton is a three-phase motor, which includes a U-phase notch 221, a V-phase notch 222, and a W-phase notch 223, which correspond to the U-phase power cord 41, the V-phase power cord 42, and the W-phase power cord 43, respectively. Figure 1 The corresponding relationship between the power cord notch 22 and the power cord 4 shown in Figure 3 is only one of several corresponding relationships. Two of the power cord notches 22 are located on one side of the wire clamp 3, as shown in Figure 3 , the U-phase notch 221 and the V-phase notch 222 are located on one side of the wire clamp 3, and the W-phase notch 223 is located on the other side of the wire clamp 3. The heights of the two power cord notches 22 on the outer wall 2 are different, i.e., the heights of the U-phase notch 221 and the V-phase notch 222 are different, and the height of the U-phase notch 221 is lower than that of the V-phase notch 222, which facilitates the parallel arrangement of the U-phase power cord 41 and the V-phase power cord 42, making the wiring of the power cord 4 more neat and beautiful, and also less likely to fall off.

[0034] As an optional implementation, as shown in Figure 1 , Figure 3 The first wire clamp 31 and the second wire clamp 32 are provided with wire outlet holes 33 with a semicircular cross section, which facilitates shape matching between the wire outlet holes 33 with a semicircular cross section and the power cord 4 with a circular cross section. After shape matching, the power cord 4 can be better fixed between the first wire clamp 31 and the second wire clamp 32. The number of wire outlet holes 33 is preferably three, and the three wire outlet holes 33 are arranged side by side, which matches the number of the power cord 4 and the power cord notch 22. As shown in Figure 1 , Figure 3As shown, after the first wire clamp 31 and the second wire clamp 32 are engaged, the outlet hole 33 can fix the power cord 4. The first wire clamp 31 is provided with a guide post 311 and a guide groove 312, and the second wire clamp 32 is provided with a guide hole 321 and a boss 322. The guide post 311 cooperates with the guide hole 321, and the guide groove 312 cooperates with the boss 322. The two types of engagement structures realize a firm connection between the first wire clamp 31 and the second wire clamp 32, and also facilitate better fixation of the power cord in the outlet hole 33. The cross-sectional diameter of the outlet hole 33 is smaller than the cross-sectional diameter of the power cord 4. The outlet hole 33 and the power cord 4 are interference-fitted. Preferably, the cross-sectional diameter of the outlet hole 33 is slightly smaller than the cross-sectional diameter of the power cord 4, or the power cord 4 can be inserted into the outlet hole 33 with the largest cross-sectional diameter, so as to achieve better fixation of the power cord 4 and the wire clamp 3. During the process of fixing the power cord 4 to the wire clamp 3, the wire clamp 3 can be heated appropriately to increase the cross-sectional area of ​​the wire outlet hole 33 to facilitate the assembly of the power cord 4.

[0035] The specific procedure for fixing the power lines 4 to the insulating frame is as follows: After the U-phase power line 41, V-phase power line 42, and W-phase power line 43 enter the motor stator from the outside, they first pass through the outlet holes 33 of the first wire clamp 31, fixing the three power lines 4 within the three outlet holes 33; then, the three power lines 4 (with the V-phase power line 42 located in the middle) enter the inner side of the outer wall 2 through the total notch 24 at the position of the first wire clamp 31 (e.g., Figure 1 (As shown by the dashed line of the power supply line 4), the U-phase power supply line 41 and the V-phase power supply line 42 enter from one side of the fixed clamp 3, and the W-phase power supply line 43 enters from the other side; the U-phase power supply line 41 and the V-phase power supply line 42 then pass in parallel through the bridging gap 21 on this side of the fixed clamp 3 (the bridging gap 21 on this side passes through two power supply lines 4), and enter the outer side of the outer wall 3. The W-phase power supply line 43 also passes through the bridging gap 21 on the corresponding side of the fixed clamp 3 (the bridging gap 21 on this side passes through only one power supply line 4), and enters the outer side of the outer wall 3; the U-phase power supply line 41 then passes through the U-phase gap 221, the V-phase power supply line 42 passes through the V-phase gap 222, and the W-phase power supply line 43 passes through the W-phase gap 223 and enters the inner side of the outer wall 3 again, and then connects to the corresponding stator windings respectively, thus realizing the fixation of the power supply line 4 on the insulating frame.

[0036] An electric motor includes a stator and a rotor. The stator includes a stator core, an insulating frame, and stator windings. The insulating frame covers the outside of the stator core, and the stator windings are wound on the insulating frame. The insulating frame is the one provided by this invention. The electric motor achieves a low-cost and effective fixation using the insulating frame of this invention, thus reducing the cost of the motor while ensuring its performance.

[0037] An electric appliance product comprises an electric machine, the electric machine is provided by the application, when reducing the cost of the electric appliance product, the quality of the power line is ensured, and the service life of the electric appliance product is improved. Preferably, the electric appliance product is an air conditioner, a washing machine or a refrigerator, and other electric appliance products such as a water heater and a range hood. The beneficial effects are similar to those brought by the above-mentioned electric machine, and thus are not described here again.

[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An insulating framework, characterized in that, The insulation framework body is annular, and an outer wall of the insulation framework body is provided with a power line notch and a bridge notch, the power line notch and the bridge notch can accommodate the power line to pass through, the power line notch has different cross-sectional areas on the inner and outer sides of the outer wall, and the power line successively passes through the bridge notch and the power line notch and is fixed with the insulation framework body on the inner and outer sides of the outer wall. The insulation framework further comprises a wire fixing clamp, the wire fixing clamp is divided into a first wire fixing clamp and a second wire fixing clamp, the first wire fixing clamp is integrally formed with the insulation framework body, and the second wire fixing clamp is separately provided. The cross-sectional area of the power line notch on the outer side of the outer wall is smaller than that on the inner side of the outer wall. The bridge notch comprises two bridge notches which are respectively located on the two sides of the wire fixing clamp. Two power line notches are located on one side of the wire fixing clamp, and the two power line notches have different heights on the outer wall. The power line notch comprises three power line notches which respectively correspond to U-phase power lines, V-phase power lines and W-phase power lines. The first wire fixing clamp and the second wire fixing clamp are provided with wire outlet holes with semicircular cross sections, the wire outlet holes can fix the power line after the first wire fixing clamp and the second wire fixing clamp are clamped and connected. The cross-sectional diameter of the wire outlet hole is smaller than that of the power line, and the wire outlet hole and the power line are in interference fit.

2. The insulating skeleton according to claim 1, characterized in that, The bridge notch can accommodate at least one power line to pass through.

3. The insulating skeleton according to claim 1, characterized in that, The power line successively passes through the wire fixing clamp and the bridge notch, enters the power line notch from the outer side of the outer wall, and is fixed with the insulation framework body.

4. An electric machine comprising a stator and a rotor, the stator comprising a stator core, an insulating framework, and a stator winding, the insulating framework being coated on the outside of the stator core, the stator winding being wound on the insulating framework, characterized in that, The insulation framework is the insulation framework as claimed in any one of claims 1-3.

5. An electric appliance product comprising an electric motor, characterized in that The motor is the motor as claimed in claim 4.

6. The electrical product of claim 5, wherein, The electric appliance is an air conditioner, a washing machine or a refrigerator.

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