Junction box and motor
By using an integrated titanium alloy box body and lid, combined with seals and penetration parts, the problem of poor vibration absorption ability of the existing motor junction box is solved, and the effect of reducing motor vibration noise and improving motor performance is achieved.
Patent Information
- Application Number
- CN202420847556.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The assembly and welding structure of existing motor junction boxes has poor vibration absorption ability, resulting in an increase in motor vibration noise, affecting the production environment and the stability of internal parts of the motor.
The one-piece titanium alloy box body and lid are used, combined with seals and penetration parts, to form stronger structural strength and better vibration dispersion capabilities, reducing vibration noise.
Through the one-piece box structure, the vibration absorption capacity is improved, the vibration noise of the motor is reduced, the performance of the motor is improved, and component damage and signal transmission disturbance are avoided.
Smart Images
Figure CN222381444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor wiring, in particular to a junction box and a motor. Background Art
[0002] In recent years, with the rapid changes in the equipment manufacturing industry, especially the vigorous development of the military industry, the requirements for the indicators of corresponding military products have become increasingly higher. For military special motors, vibration and noise indicators are important assessment parameters.
[0003] The motor junction box in the prior art is usually composed of stainless steel wall panels or cast iron wall panels assembled and welded. The assembled and welded structure has poor vibration absorption capacity, which will increase the vibration noise of the motor. The increase in vibration noise will have a negative impact on the production environment and various internal components of the motor. Utility Model Content
[0004] In view of this, in order to solve at least one of the above technical problems, an embodiment of the utility model provides a junction box and a motor.
[0005] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:
[0006] On the one hand, an embodiment of the utility model provides a junction box for a motor, comprising:
[0007] A box body (100), the box body (100) is used to be connected to a motor;
[0008] A box cover (200), the box cover (200) is connected to the box body (100), and the box cover (200) is used to cooperate with the box body (100) to enclose a receiving space (101);
[0009] The box body (100) is integrally formed.
[0010] The box body (100) is made of titanium alloy and is formed by casting;
[0011] And / or, the material of the box cover (200) is titanium alloy, and the box cover (200) is formed by casting.
[0012] The junction box further comprises: a sealing member (300), wherein the sealing member (300) is located between the box body (100) and the box cover (200).
[0013] The box body (100) comprises a top opening, and the sealing member (300) surrounds the top opening;
[0014] Alternatively, there are multiple sealing members (300), and the multiple sealing members (300) are distributed around the top opening.
[0015] The box body (100) comprises a top opening, the edge of the top opening comprises a limiting groove (102), the box cover (200) is provided with a boss (201), and the boss (201) is at least partially embedded in the limiting groove (102).
[0016] The box body (100) comprises a top opening, and the box cover (200) is used to cover the top opening, so as to cooperate with the box body (100) to enclose a receiving space (101);
[0017] An extension platform (110) is provided on the box body (100), and the box cover (200) is connected to the box body (100) via the extension platform (110).
[0018] The box body (100) is provided with a through hole (103), and the through hole (103) is used to pass the cable of the motor.
[0019] The junction box further comprises: a through-piece (400), the through-piece (400) is provided with a mounting hole (401), the through-piece (400) is connected to the through-hole (103), and the through-piece (400) is connected to the box body (100), and the mounting hole (401) is used to pass the cable of the motor.
[0020] Wherein, at least one mounting plate (120) is arranged on the bottom wall of the box body (100) opposite to the box cover (200), and the at least one mounting plate (120) is used to connect to a plug board of the motor.
[0021] On the other hand, the utility model further provides a motor, comprising any one of the above-mentioned junction boxes.
[0022] The junction box and motor proposed in the utility model mainly avoid the problem of poor vibration reduction and noise reduction performance of the spliced box body through the one-piece molded box body, thereby reducing the vibration noise of the motor. In the prior art, the motor junction box is usually composed of stainless steel wall panels or cast iron wall panels assembled and welded. The assembled and welded structure has poor vibration absorption capacity, which will increase the vibration noise of the motor. The increase in vibration noise will have a negative impact on the production environment and various components inside the motor. Compared with the prior art, in the present application document, the box body is integrally molded, has high structural strength, has a better dispersion effect on vibration, can increase the vibration absorption capacity of the box body, and then assist in the vibration reduction and noise reduction of the motor, improve motor performance, and avoid component damage and signal transmission disturbance. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of the structure of a box body provided by an embodiment of the utility model;
[0024] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the junction box at position AA shown in FIG.
[0025] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the junction box at the BB position shown in FIG.
[0026] Figure 4 A schematic diagram of the structure of a box cover provided by an embodiment of the utility model;
[0027] Figure 5 A schematic diagram of the structure of a junction box provided by an embodiment of the utility model;
[0028] Figure 6 A schematic structural diagram of another box body provided in an embodiment of the utility model. DETAILED DESCRIPTION
[0029] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the present invention, the following is a detailed description of the specific implementation method, structure, characteristics and effects of a junction box proposed according to the present invention in combination with the accompanying drawings and preferred embodiments.
[0030] On the one hand, if Figure 1-6 As shown, the embodiment of the utility model provides a junction box for a motor, comprising:
[0031] A box body (100), the box body (100) is used to be connected to a motor;
[0032] A box cover (200), the box cover (200) is connected to the box body (100), and the box cover (200) is used to cooperate with the box body (100) to enclose a receiving space (101);
[0033] The box body (100) is integrally formed.
[0034] The box body (100) can be connected to the stator of the motor, such as by using multiple bolts. The box body (100) and the box cover (200) can be a variety of shapes that can be matched with each other, in order to form a relatively closed space, at least to accommodate the power strip. Compared with the box cover (200), the box body (100) accounts for a larger weight proportion of the junction box. In one embodiment, the junction box can be an approximate cubic structure, and the outer contour of the box body (100) is an approximate hollow cube, including a bottom plate and a surrounding plate connected to the bottom plate and extending to one side of the bottom plate, surrounding the bottom plate, and the surrounding plate and the bottom plate together enclose a receiving groove and a top opening connected to the receiving groove. The box cover (200) is an approximate square plate structure, and the top opening can be selectively covered or opened. When the box cover (200) covers the top opening, the receiving groove is closed to form a receiving space (101). The connection between the box cover (200) and the box body (100) can be connected by multiple mounting bolts (500), and the mounting bolts (500) can be arranged circumferentially around the top opening. Alternatively, in some embodiments, the junction box can also be an approximate cylindrical structure, the enclosure is an arcuate surface, and the box cover (200) is an approximate circular plate-like structure. Alternatively, there can be other structures, which are not described one by one here. The contour of the bottom plate of the box body (100) can be adapted to the outer surface contour of the motor. For example, the outer shell shape of the motor is approximately cylindrical, and the surface contour of the area where the motor is used to fix the box body (100) is an arc, then the bottom plate of the box body (100) can be an arcuate surface consistent with the surface of the motor, and then when the box body (100) is fixed to the motor, the box body (100) can fit with the surface of the motor, thereby making the position of the box body (100) or the junction box more stable. Alternatively, the box body (100) may not be in close contact with the surface of the motor, but may be separated by a certain distance or separated by other components, which is not limited in the present application.
[0035] The box body (100) is integrally formed, which means that all areas of the box body (100) are integrally formed, and are not formed by splicing multiple plates. For example, when the box body (100) includes a bottom plate and a surrounding plate, the bottom plate and the surrounding plate are integrally formed, not welded, and the surrounding plate is also integrally formed. The integrally formed box body (100) has a better vibration dispersion effect in a vibration environment, avoiding poor vibration transmission at the welding seams of the box body (100), resulting in the inability of the vibration to dissipate. The integrally formed box body (100) has better vibration absorption performance, which can help alleviate the overall vibration of the motor, and then help ensure that the motor meets the vibration and noise indicators. The material of the box body (100) can be a variety of materials, as long as it can be integrally formed.
[0036] The junction box and motor proposed in the embodiment of the utility model mainly avoid the problem of poor vibration reduction and noise reduction performance of the spliced box body through the integrally formed box body, thereby reducing the vibration noise of the motor. In the prior art, the motor junction box is usually composed of stainless steel wall panels or cast iron wall panels assembled and welded. The assembled and welded structure has poor vibration absorption capacity, which will increase the vibration noise of the motor. The increase in vibration noise will have a negative impact on the production environment and various components inside the motor. Compared with the prior art, in the present application document, the box body is integrally formed, with high structural strength, better dispersion effect on vibration, which can increase the vibration absorption capacity of the box body, and then assist in the vibration reduction and noise reduction of the motor, improve motor performance, and avoid component damage and signal transmission disturbance.
[0037] The box body (100) may be made of plastic and may be injection molded to achieve integration of the box body (100). Alternatively, the box body (100) may be made of titanium alloy and may be cast. Compared with plastic, titanium alloy has higher hardness and wear resistance, which can ensure a longer service life of the junction box. Plastic and titanium alloy are both light in weight. Compared with stainless steel or iron junction boxes, junction boxes made of plastic or titanium alloy are light in weight, which can avoid the increase of vibration caused by the weight of the junction box itself. By reducing the weight of the junction box, vibration noise can be effectively reduced.
[0038] The material of the box cover (200) and the box body (100) can be the same, such as the same plastic as the box body (100), and the box cover (200) is injection molded, or the box cover (200) is a titanium alloy, and the box cover (200) is cast. It can be set as needed.
[0039] In one embodiment, the junction box further comprises a sealing member (300), and the sealing member (300) is located between the box body (100) and the box cover (200).
[0040] The seal (300) is used to seal the connection between the box body (100) and the box cover (200). On the one hand, the seal (300) can play a certain vibration absorption role, preventing the box cover (200) from vibrating excessively due to the connection gap between the box body (100) and the box cover (200); on the other hand, the seal (300) is used to seal the receiving space (101), preventing external dust or water vapor from entering the receiving space (101), and protecting the plug board in the receiving space (101). The seal (300) can be made of a variety of materials, such as foam, rubber or soft glue of other materials.
[0041] In one embodiment, the box body (100) includes a top opening, the sealing member (300) is arranged outside the top opening, and the sealing member (300) is arranged on the top end surface of the enclosure, for example, an embedding groove may be arranged on the top end surface of the enclosure, and the sealing member (300) may be embedded in the embedding groove. Furthermore, the sealing member (300) may be connected and fixed to the groove wall or groove bottom of the embedding groove by gluing or ultrasonic connection. The top surface of the sealing member (300) protrudes from the embedding groove. When the box cover (200) is connected to the box body (100), the box cover (200) will squeeze the sealing member (300), thereby achieving the aforementioned sealing effect.
[0042] The seal (300) may surround the top opening, that is, the seal (300) is an annular member, such as an annular rubber ring. Alternatively, there are multiple seals (300), and the multiple seals (300) are distributed around the top opening. For example, the seals (300) may be distributed at intervals around the top opening. In the embodiment in which the seal (300) is annular or distributed at intervals, the seals (300) may be arranged in a direction close to or away from the top opening. For example, in the embodiment in which the seal (300) is annular, there may be multiple seals (300), which may be arranged one by one around the previous seal (300) from the top opening to the outside, thereby achieving better vibration reduction and sealing effects. In some embodiments, the seal (300) may also be fixed on the box cover (200), or the box body (100) and the box cover (200) may be provided with seals (300).
[0043] In one embodiment, the box body (100) comprises a top opening, the edge of the top opening comprises a limiting groove (102), and the box cover (200) is provided with a boss (201), and the boss (201) is at least partially embedded in the limiting groove (102).
[0044] The limiting groove (102) is a groove that passes through the inner surface of the surrounding wall of the box body (100) and the top end surface, and is an annular groove that directly connects to the receiving groove of the box body (100). The boss (201) is adapted to the annular groove. Figure 5 As shown, after the box cover (200) and the box body (100) are installed, the boss (201) is partially embedded in the limiting groove (102). On the one hand, the box cover (200) can be limited, so that the position of the box cover (200) is more accurate, and the problem of the box cover (200) vibrating due to the loosening of a single bolt is reduced. On the other hand, the accommodating space (101) can be further sealed to avoid the problem of loose sealing caused by the failure of the sealing member (300) due to long-term use.
[0045] In one embodiment, the box body (100) includes a top opening, and the box cover (200) is used to cover the top opening to cooperate with the box body (100) to enclose a receiving space (101). An extension platform (110) is provided on the box body (100), and the box cover (200) is connected to the box body (100) via the extension platform (110).
[0046] The provision of the extension platform (110) serves to increase the area or width of the top end surface of the enclosure. On the one hand, it facilitates the arrangement of the seal (300) and the provision of screw holes for bolting the box cover (200). On the other hand, it can reduce the thickness of the non-extension platform (110) area of the box body (100), or reduce the thickness of the non-extension platform (110) area of the enclosure. For example, the thickness of the non-extension platform (110) area of the enclosure can be one-third of the thickness of the extension platform (110) area. This further reduces the weight of the box body (100) while ensuring the stability of the seal and connection, and further reduces the vibration caused by the weight of the box body (100). The extension platform (110) can extend to the outside of the accommodating space (101), or it can extend to the inside of the accommodating space (101). Figure 2 In the embodiment, the extension platforms (110) on opposite sides of the surrounding wall extend toward the accommodation space (101) on one side and extend away from the accommodation space (101) on the other side. Figure 5 In the embodiment, the extension platforms (110) on the opposite sides of the surrounding wall both extend away from the accommodating space (101) and can be arranged as required.
[0047] In one embodiment, a through hole (103) is provided on the box body (100), and the through hole (103) is used to pass the cable of the motor.
[0048] The cable is led out from the stator of the motor, and the perforation (103) corresponds to the lead-out position on the stator, and then the cable can be introduced into the storage space (101) through the perforation (103), and then the cable can be electrically connected to the power strip in the storage space (101). In addition, the box body (100) is also provided with a lead-out hole (104), and the external cable of the external controller, etc. is introduced into the storage space (101) through the lead-out hole (104), and then electrically connected to the power strip in the storage space (101), so as to realize the electrical connection between the controller, etc. and the motor. Depending on the number or specification of the external cables that the lead-out hole (104) is used to connect, the size of the lead-out hole (104) is also different. The box body (100) can be provided with a single lead-out hole (104), or multiple lead-out holes (104), such as lead-out holes (104) of different sizes. In some embodiments, the upper connection flexible member of the lead-out hole (104) may be a rubber sleeve, and the flexible member is used to abut against external cables, thereby ensuring the sealing of the accommodating space (101) and protecting the external cables.
[0049] In one embodiment, if Figure 6 As shown, the junction box further includes: a penetration piece (400), a mounting hole (401) is provided on the penetration piece (400), the penetration piece (400) is connected to the through hole (103), and the penetration piece (400) is connected to the box body (100), and the mounting hole (401) is used to pass the cable of the motor.
[0050] The through-piece (400) is used for threading the cable. The main body of the through-piece (400) is an approximately cylindrical structure. The through-piece (400) also includes a connecting portion. The through-piece (400) is connected to the box body (100) through the connecting portion, such as a bolt connection. The main body of the through-piece (400) is connected to the perforation (103) and abuts against the edge of the perforation (103), that is, the through-piece (400) and the perforation (103) are closely connected, thereby reducing vibration noise. The through-piece (400) can be made of ceramics, which have good damping properties and can absorb vibration energy, thereby further reducing vibration.
[0051] In one embodiment, at least one mounting plate (120) is provided on the bottom wall of the box body (100) opposite to the box cover (200), and the at least one mounting plate (120) is used to connect a power strip.
[0052] The number of mounting plates (120) can be a single one or multiple ones. The mounting plate (120) is used to open screw holes for connecting bolts. For example, the mounting plate (120) is used to connect the bolts of the power strip, thereby fixing the power strip. The mounting plate (120) can also be used to connect the through-piece (400) or other internal components of the accommodating space (101), or can be used to fix cables, etc. The provision of the mounting plate (120) ensures the strength of the bolt connection and avoids increasing the wall thickness of the bottom plate of the box body (100), thereby reducing the overall weight of the box body (100). It can be understood that the mounting plate (120) and the box body (100) are integrally formed.
[0053] On the other hand, the utility model further provides a motor, comprising any of the aforementioned junction boxes, including the advantages of any of the aforementioned junction boxes, which will not be repeated here.
[0054] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A junction box for a motor, characterized in that: The junction box comprises: A box body (100), the box body (100) being used to be connected to the motor; A box cover (200), the box cover (200) being connected to the box body (100), and the box cover (200) being used to cooperate with the box body (100) to enclose a receiving space (101); The box body (100) is integrally formed.
2. The junction box according to claim 1, characterized in that: The box body (100) is made of titanium alloy and is formed by casting; And / or, the box cover (200) is made of titanium alloy, and the box cover (200) is formed by casting.
3. The junction box according to claim 1, characterized in that: The junction box also includes: A sealing member (300), wherein the sealing member (300) is located between the box body (100) and the box cover (200).
4. The junction box according to claim 3, characterized in that: The box body (100) comprises a top opening, and the sealing member (300) surrounds the top opening; Alternatively, there are a plurality of sealing members (300), and the plurality of sealing members (300) are distributed around the top opening.
5. The junction box according to claim 1, characterized in that: The box body (100) comprises a top opening, the edge of the top opening comprises a limiting groove (102), the box cover (200) is provided with a boss (201), and the boss (201) is at least partially embedded in the limiting groove (102).
6. The junction box according to claim 1, characterized in that: The box body (100) comprises a top opening, and the box cover (200) is used to cover the top opening so as to cooperate with the box body (100) to enclose the accommodation space (101); An extension platform (110) is provided on the box body (100), and the box cover (200) is connected to the box body (100) via the extension platform (110).
7. The junction box according to claim 1, characterized in that: The box body (100) is provided with a through hole (103), and the through hole (103) is used to pass the cable of the motor.
8. The junction box according to claim 7, characterized in that: The junction box also includes: A through-piece (400), wherein a mounting hole (401) is provided on the through-piece (400), the through-piece (400) is connected to the through-hole (103), and the through-piece (400) is connected to the box body (100), and the mounting hole (401) is used to pass the cable of the motor.
9. The junction box according to claim 1, characterized in that: At least one mounting plate (120) is provided on the bottom wall of the box body (100) opposite to the box cover (200), and at least one mounting plate (120) is used to connect to a plugboard of the motor.
10. A motor, characterized in that: The invention comprises a junction box as claimed in any one of claims 1 to 9.