Motor junction box

Abstract

The utility model discloses a motor junction box which comprises a box body, a cover plate and a bottom plate. The upper side and the lower side of the box body are open. The cover plate and the bottom plate are installed on the upper side and the lower side of the box body respectively and used for covering an opening of the box body and forming a closed space. The box body is formed by splicing a pair of non-edge side plates and a pair of edge side plates, and the non-edge side plates and the edge side plates are connected through bolts; according to the size of the motor, the cover plate, the bottom plate, the side plate, the sealing ring and other parts with corresponding sizes can be selected for assembly, and the size of the junction box can be flexibly adjusted to adapt to motors with different specifications.

Description

Technical Field

[0001] The utility model relates to the field of motor auxiliary components, which are installed on the shell of a DSP motor, and in particular to a motor junction box. Background Art

[0002] DSP motor is a small size, high power, high torque motor. Figure 1 The figure shown above shows a DSP motor designed by our company. The junction box specifications for this motor are not standardized. If a smaller junction box is installed on a slightly larger motor, the overall motor appearance will be inconsistent. If a larger junction box is installed on a slightly smaller motor, the junction box will protrude from the motor housing, affecting customer installation and use.

[0003] Currently, most junction boxes on the market have fixed structures, meaning that once produced, the user cannot adjust the size of the junction box. To address the aforementioned non-uniform specifications for motor junction boxes, the existing approach is to customize junction boxes of various sizes. However, this approach can lead to shortages of certain junction boxes, impacting motor shipments, or excessive inventory, leading to increased production costs, given the unstable order volume of motor manufacturers. Utility Model Content

[0004] The main technical problem solved by the utility model is that the existing junction box cannot flexibly adjust the size and is difficult to meet the installation requirements of motors of different specifications and sizes.

[0005] In order to solve the above technical problems, the present invention adopts a technical solution: providing a motor junction box, comprising: a box body, a cover plate and a bottom plate; the box body has openings on the upper and lower sides; the cover plate and the bottom plate are respectively mounted on the upper and lower sides of the box body to cover the openings of the box body and form a closed space;

[0006] The box body is formed by splicing a pair of edgeless side panels and a pair of edged side panels, and the edgeless side panels are connected to the edged side panels by bolts.

[0007] As an improved solution, the edgeless side panel includes a first side panel and a pair of first ridges and a plurality of second ridges provided on the inner wall of the first side panel, wherein the two first ridges extend along the upper and lower edges of the first side panel respectively, and the two first ridges are flush with the upper and lower edges of the first side panel respectively; the left and right ends of the first ridge are flush with the left and right ends of the first side panel;

[0008] The upper and lower sides of the edgeless side panels are both provided with first strip grooves extending along the upper and lower edges of the edgeless side panels, and the first strip grooves are provided at the junction of the first side panels and the first convex strips;

[0009] A pair of first notches are formed on the groove wall of each of the first strip-shaped grooves close to the inner part of the box body. The first notches communicate with the first strip-shaped grooves, and the first notches extend towards the inner wall of the first convex strip and penetrate through the first convex strip. The two first notches are respectively arranged close to the left and right ends of the rimless side plate.

[0010] The second convex strip is parallel to the first strip-shaped groove, and the left and right ends of the second convex strip are flush with the left and right ends of the first side plate; the outer shape of the second convex strip is approximately cylindrical; first threaded holes are formed at the end faces of the left and right ends of the second convex strip; first countersunk holes are formed at the positions corresponding to the first threaded holes on the rimmed side plate.

[0011] As an improved scheme, the rimmed side plate includes a second side plate, a third convex strip arranged on the inner wall of the second side plate, and a fourth convex strip arranged on the outer wall of the second side plate;

[0012] The third convex strip extends along the upper edge of the first side plate, and the upper surface of the third convex strip is flush with the upper edge of the second side plate; a first gap is left between the left and right ends of the third convex strip and the left and right ends of the second side plate respectively, and the length of the first gap is equal to the distance between the outer wall of the first side plate and the inner wall of the first convex strip;

[0013] The fourth convex strip extends along the lower edge of the first side plate, and the lower surface of the fourth convex strip is flush with the lower edge of the second side plate; the left and right ends of the fourth convex strip are flush with the left and right ends of the second side plate; the outer shape of the fourth convex strip is approximately a long strip plate, which is convenient for connecting with the bottom plate and increases the connection strength.

[0014] As an improved scheme, a third strip-shaped groove extending along the upper edge of the rimmed side plate is formed on the upper surface of the third convex strip, and the distance from the third strip-shaped groove to the inner wall of the second side plate is equal to the distance from the first notch to the end of the rimless side plate;

[0015] A fourth strip-shaped groove extending along the length direction of the lower edge of the rimmed side plate is formed on the lower side of the rimmed side plate. The fourth strip-shaped groove is formed at the joint of the second side plate and the fourth convex strip; a pair of second notches are formed on the groove wall of the fourth strip-shaped groove close to the inner part of the box body. The second notches communicate with the fourth strip-shaped groove, and the second notches extend towards the inner wall of the fourth convex strip and penetrate through the fourth convex strip. The two second notches are respectively arranged close to the left and right ends of the rimmed side plate; the distance from the second notch to the end of the rimmed side plate is equal to the distance from the first strip-shaped groove to the outer wall of the first side plate.

[0016] As an improved solution, when a pair of said edge - less side plates and a pair of said edge - having side plates are spliced to form the box body, the end of the edge - less side plate is inserted into the first gap, the third strip - shaped groove communicates with the first notch and forms a first circular groove with the first strip - shaped groove on the upper side of the edge - less side plate, and the first strip - shaped groove on the lower side of the edge - less side plate communicates with the second notch and forms a second circular groove with the fourth strip - shaped groove; sealing rings are arranged in both the first circular groove and the second circular groove.

[0017] As an improved solution, a plurality of second threaded holes are opened on the upper side of the edge - having side plate, and second countersunk holes are opened on the cover plate at positions corresponding to the second threaded holes; a plurality of third countersunk holes are opened on the fourth rib, and third threaded holes are opened on the bottom plate at positions corresponding to the third countersunk holes.

[0018] As an improved solution, one or both of the two edge - less side plates are provided with wiring holes, and cable connectors are installed at the wiring holes.

[0019] As an improved solution, sealant is coated at the joint of the edge - less side plate and the edge - having side plate.

[0020] As an improved solution, both the edge - less side plate and the edge - having side plate are formed by extrusion of aluminum.

[0021] The beneficial effects of the present utility model are as follows: The present utility model can select components such as the cover plate, bottom plate, side plates, sealing rings, etc. with corresponding sizes according to the size of the motor for assembly, flexibly adjust the size of the junction box to adapt to motors of different specifications, and is easy to install with good overall sealing performance of the junction box; enabling motor manufacturers to flexibly adjust the safety inventory of the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three - dimensional structure schematic diagram of a DSP motor;

[0023] Figure 2 is a three - dimensional structure schematic diagram of a preferred embodiment of the present utility model;

[0024] Figure 3 is an exploded view of the present utility model;

[0025] Figure 4 is an exploded view of the present utility model when the waterproof cable connector is removed;

[0026] Figure 5 is a three - dimensional structure schematic diagram of the box body in the present utility model;

[0027] Figure 6 is a three - dimensional structure schematic diagram of another perspective of the box body in the present utility model;

[0028] Figure 7 is an exploded view of the box body in the present utility model;

[0029] Figure 8 is a three-dimensional structural schematic diagram of the side plate with a flange in the present utility model;

[0030] Figure 9 is a three-dimensional structural schematic diagram of another perspective of the side plate with a flange in the present utility model;

[0031] Figure 10 is a three-dimensional structural schematic diagram of the side plate without a flange in the present utility model;

[0032] Figure 11 is a side view structural schematic diagram of the side plate with a flange in the present utility model;

[0033] Figure 12 is a side view structural schematic diagram of the side plate without a flange in the present utility model;

[0034] The markings of each component in the attached drawings are as follows: 1. Side plate without a flange; 2. Side plate with a flange; 3. Cover plate; 4. Bottom plate; 5. Wiring hole; 6. Cable joint;

[0035] 11. First side plate; 12. First rib; 13. Second rib; 14. First strip-shaped groove; 15. First notch;

[0036] 21. Second side plate; 22. Third rib; 23. Fourth rib; 24. Third strip-shaped groove; 25. Fourth strip-shaped groove; 26. Second notch. Detailed implementation manners

[0037] The following elaborates on the preferred embodiments of the present utility model in conjunction with the attached drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper and lower sides", "upper side", "lower side", "outer wall", "inner wall", "upper and lower edges", "upper edge", "lower edge", "inside", "left and right ends", "upper surface", "lower surface", etc. are based on the orientation or positional relationships shown in the attached drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0039] Furthermore, the terms "first", "second", "third", and "fourth" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include at least one of such features.

[0040] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", and "set" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Please refer to Figure 2-12 , the embodiments of the present utility model include:

[0042] A motor junction box is installed on a DSP motor. The junction box includes: a box body, a cover plate 3, and a bottom plate 4; both the upper and lower sides of the box body are open; the cover plate 3 and the bottom plate 4 are respectively installed on the upper and lower sides of the box body through bolts to cover the openings of the box body and form a sealed space.

[0043] The box body is formed by splicing a pair of side plates 1 without edges and a pair of side plates 2 with edges. The side plates 1 without edges and the side plates 2 with edges are connected by bolts; the side plates 1 without edges, the side plates 2 with edges, the cover plate 3, and the bottom plate 4 all have several specifications for users to select and assemble.

[0044] Further, the side plate 1 without edges includes a first side plate 11, a pair of first ridges 12 provided on the inner wall of the first side plate 11, and two second ridges 13. The two first ridges 12 respectively extend along the upper and lower edges of the first side plate 11, and the two first ridges 12 are respectively flush with the upper and lower edges of the first side plate 11; the left and right ends of the first ridges 12 are flush with the left and right ends of the first side plate 11.

[0045] Both the upper and lower sides of the side plate 1 without edges are provided with first strip-shaped grooves 14 extending along the upper and lower edges of the side plate 1 without edges. The first strip-shaped grooves 14 are opened at the joint of the first side plate 11 and the first ridges 12; it should be noted that the purpose of providing the first ridges 12 is to enable the side plate 1 without edges to maintain sufficient strength at the first strip-shaped grooves 14 after the first strip-shaped grooves 14 are opened. When using a relatively thick side plate 1 without edges, the first ridges 12 can be omitted.

[0046] A pair of first notches 15 are formed on the groove wall of each of the first strip-shaped grooves 14 close to the inner part of the box body. The first notches 15 communicate with the first strip-shaped grooves 14, and the first notches 15 extend towards the inner wall of the first rib 12 and penetrate through the first rib 12. The two first notches 15 are respectively arranged close to the left and right ends of the rimless side plate 1.

[0047] The second rib 13 is parallel to the first strip-shaped groove 14, and the left and right ends of the second rib 13 are flush with the left and right ends of the first side plate 11; the outer shape of the second rib 13 is approximately cylindrical; first threaded holes are formed at the end faces of the left and right ends of the second rib 13; first countersunk holes are formed at the positions corresponding to the first threaded holes on the rimmed side plate 2. It should be noted that the purpose of arranging the second rib 13 is to enable the rimless side plate 1 to maintain sufficient strength at the position of the first threaded hole after the first threaded hole is arranged on the rimless side plate 1. When using a relatively thick rimless side plate 1, the second rib 13 can be omitted.

[0048] Furthermore, the rimmed side plate 2 includes a second side plate 21, a third rib 22 arranged on the inner wall of the second side plate 21, and a fourth rib 23 arranged on the outer wall of the second side plate 21;

[0049] The third rib 22 extends along the upper edge of the first side plate 11, and the upper surface of the third rib 22 is flush with the upper edge of the second side plate 21; a first gap is left between the left and right ends of the third rib 22 and the left and right ends of the second side plate 21, and the length of the first gap is equal to the distance between the outer wall of the first side plate 11 and the inner wall of the first rib 12;

[0050] The fourth rib 23 extends along the lower edge of the first side plate 11, and the lower surface of the fourth rib 23 is flush with the lower edge of the second side plate 21; the left and right ends of the fourth rib 23 are flush with the left and right ends of the second side plate 21; the outer shape of the fourth rib 23 is approximately a long strip plate, which is convenient for connecting with the bottom plate 4 and increases the connection strength.

[0051] Furthermore, a third strip-shaped groove 24 extending along the upper edge of the rimmed side plate 2 is formed on the upper surface of the third rib 22, and the distance from the third strip-shaped groove 24 to the inner wall of the second side plate 21 is equal to the distance from the first notch 15 to the end of the rimless side plate 1;

[0052] A fourth strip-shaped groove 25 extending along the length direction of the lower edge of the flanged side plate 2 is formed on the lower side of the flanged side plate 2. The fourth strip-shaped groove 25 is formed at the joint of the second side plate 21 and the fourth rib 23. A pair of second notches 26 are formed on the groove wall of the fourth strip-shaped groove 25 close to the inside of the box body. The second notches 26 communicate with the fourth strip-shaped groove 25, and the second notches 26 extend towards the inner wall of the fourth rib 23 and penetrate through the fourth rib 23. The two second notches 26 are respectively arranged close to the left and right ends of the flanged side plate 2. The distance from the second notch 26 to the end of the flanged side plate 2 is equal to the distance from the first strip-shaped groove 14 to the outer wall of the first side plate 11.

[0053] Further, when a pair of the non-flanged side plates 1 and a pair of the flanged side plates 2 are spliced into the box body, the end of the non-flanged side plate 1 is inserted into the first gap. The third strip-shaped groove 24 communicates with the first notch 15 and forms a first loop groove with the first strip-shaped groove 14 on the upper side of the non-flanged side plate 1. The first strip-shaped groove 14 on the lower side of the non-flanged side plate 1 communicates with the second notch 26 and forms a second loop groove with the fourth strip-shaped groove 25. Sealing rings are arranged in both the first loop groove and the second loop groove to improve the connection tightness between the lifting cover plate 3 and the bottom plate 4 and the box body.

[0054] Further, a plurality of second threaded holes are formed on the upper side of the flanged side plate 2, and second countersunk holes are formed at the positions corresponding to the second threaded holes on the cover plate 3. A plurality of third countersunk holes are formed on the fourth rib 23, and third threaded holes are formed at the positions corresponding to the third countersunk holes on the bottom plate 4.

[0055] Further, a wiring hole 5 is formed on one of the non-flanged side plates 1, and a gland, also called a cable connector 6, is installed at the wiring hole 5.

[0056] Further, sealant is coated at the joint of the non-flanged side plate 1 and the flanged side plate 2 to improve the connection tightness between the non-flanged side plate 1 and the flanged side plate 2.

[0057] Further, both the non-flanged side plate 1 and the flanged side plate 2 are formed by aluminum extrusion. That is, structures such as the first side plate 11, the first rib 12, the second rib 13, and the first strip-shaped groove 14 on the non-flanged side plate 1 are integrally formed, and structures such as the second side plate 21, the third rib 22, the fourth rib 23, the third strip-shaped groove 24, and the fourth strip-shaped groove 25 on the flanged side plate 2 are integrally formed.

[0058] When the present utility model needs to be installed on the outer shell of a DSP motor, components such as a cover plate 3, a bottom plate 4, a side plate, and a sealing ring with corresponding sizes can be selected according to the specifications of the DSP motor, and then Figure 5-7, assemble the selected side plate 1 without flange with the side plate 2 with flange. Insert the end of the side plate 1 without flange into the first gap of the side plate with flange, align the first threaded hole and the first countersunk hole, apply a sealant during assembly, and fasten with bolts. After assembly, a rectangular box body is formed. It should be noted that the rectangular box body is only one implementation mode, and the plate specifications can be designed according to actual requirements; during assembly, the third strip groove 24 communicates with the first strip groove 14 on the upper side of the side plate 1 without flange through the first notch 15 to form the first circular groove, and the first strip groove 14 on the lower side of the side plate 1 without flange communicates with the fourth strip groove 25 through the second notch 26 to form the second circular groove. Embedded seals are respectively installed in the first circular groove and the second circular groove, and then the cover plate 3 and the bottom plate 4 are installed with bolts. Finally, the cable connector 6 is installed to finally form a junction box.

[0059] The utility model can select corresponding components such as the cover plate, the bottom plate, the side plate, the seal ring, etc. of appropriate sizes according to the size of the motor for assembly, and flexibly adjust the size of the junction box to adapt to motors of different specifications; enabling motor manufacturers to flexibly adjust the safety inventory of the junction box.

[0060] The above are only embodiments of the utility model, and do not limit the patent scope of the utility model accordingly. Any equivalent structures made by using the description and drawings of the utility model, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the utility model.

Claims

1. A motor terminal box, characterized in that, Comprising: A box body, a cover plate (3) and a bottom plate (4); both the upper and lower sides of the box body are open; the cover plate (3) and the bottom plate (4) are respectively installed on the upper and lower sides of the box body to cover the openings of the box body and form a sealed space; The box body is formed by splicing a pair of side plates without rims (1) and a pair of side plates with rims (2), and the side plates without rims (1) and the side plates with rims (2) are connected by bolts.

2. The motor terminal box according to claim 1, wherein: The side plate without rims (1) includes a first side plate (11) and a pair of first ridges (12) provided on the inner wall of the first side plate (11), and the two first ridges (12) respectively extend along the upper and lower edges of the first side plate (11), and the two first ridges (12) are respectively flush with the upper and lower edges of the first side plate (11); the left and right ends of the first ridges (12) are flush with the left and right ends of the first side plate (11); Both the upper and lower sides of the side plate without rims (1) are provided with first strip-shaped grooves (14) extending along the upper and lower edges of the side plate without rims (1), and the first strip-shaped grooves (14) are opened at the joint of the first side plate (11) and the first ridges (12).

3. The motor terminal box according to claim 2, wherein: A pair of first notches (15) are opened on the groove wall of each first strip-shaped groove (14) close to the inside of the box body, the first notches (15) communicate with the first strip-shaped grooves (14), and the first notches (15) extend towards the inner wall of the first ridges (12) and penetrate through the first ridges (12), and the two first notches (15) are respectively arranged close to the left and right ends of the side plate without rims (1).

4. The motor terminal box according to claim 3, wherein: The side plate without rims (1) further includes a plurality of second ridges (13) provided on the inner wall of the first side plate (11), the second ridges (13) are parallel to the first strip-shaped grooves (14), and the left and right ends of the second ridges (13) are flush with the left and right ends of the first side plate (11); The end faces of the left and right ends of the second ridges (13) are respectively provided with first threaded holes; first countersunk holes are opened at the positions corresponding to the first threaded holes on the side plate with rims (2).

5. The motor terminal box according to claim 4, wherein: The side plate with rims (2) includes a second side plate (21), a third ridge (22) provided on the inner wall of the second side plate (21), and a fourth ridge (23) provided on the outer wall of the second side plate (21); The third ridge (22) extends along the upper edge of the first side plate (11), and the upper surface of the third ridge (22) is flush with the upper edge of the second side plate (21); there is a first gap between the left and right ends of the third ridge (22) and the left and right ends of the second side plate (21) respectively, and the length of the first gap is equal to the distance between the outer wall of the first side plate (11) and the inner wall of the first ridges (12); The fourth ridge (23) extends along the lower edge of the first side plate (11), and the lower surface of the fourth ridge (23) is flush with the lower edge of the second side plate (21); the left and right ends of the fourth ridge (23) are flush with the left and right ends of the second side plate (21).

6. The motor terminal box according to claim 5, wherein: The upper surface of the third rib (22) is provided with a third strip-shaped groove (24) extending along the upper edge of the side plate with a flange (2), and the distance from the third strip-shaped groove (24) to the inner wall of the second side plate (21) is equal to the distance from the first notch (15) to the end of the side plate without a flange (1). The lower side of the side plate with a flange (2) is provided with a fourth strip-shaped groove (25) extending along the length direction of the lower edge of the side plate with a flange (2), and the fourth strip-shaped groove (25) is opened at the joint of the second side plate (21) and the fourth rib (23); a pair of second notches (26) are opened on the groove wall of the fourth strip-shaped groove (25) close to the inside of the box body, the second notches (26) communicate with the fourth strip-shaped groove (25), and the second notches (26) extend towards the inner wall of the fourth rib (23) and penetrate through the fourth rib (23), and the two second notches (26) are respectively arranged close to the left and right ends of the side plate with a flange (2); the distance from the second notch (26) to the end of the side plate with a flange (2) is equal to the distance from the first strip-shaped groove (14) to the outer wall of the first side plate (11).

7. The motor terminal box according to claim 6, characterized in that: When a pair of the side plates without a flange (1) and a pair of the side plates with a flange (2) are spliced into the box body, the end of the side plate without a flange (1) is inserted into the first gap, the third strip-shaped groove (24) communicates with the first notch (15) and forms a first loop groove with the first strip-shaped groove (14) on the upper side of the side plate without a flange (1); the first strip-shaped groove (14) on the lower side of the side plate without a flange (1) communicates with the second notch (26) and forms a second loop groove with the fourth strip-shaped groove (25); sealing rings are arranged in both the first loop groove and the second loop groove.

8. The motor terminal box according to claim 7, wherein: A plurality of second threaded holes are opened on the upper side of the side plate with a flange (2), and second countersunk holes are opened at the positions corresponding to the second threaded holes on the cover plate (3); a plurality of third countersunk holes are opened on the fourth rib (23), and third threaded holes are opened at the positions corresponding to the third countersunk holes on the bottom plate (4).

9. The motor terminal box according to claim 7, wherein: Sealant is coated at the joint of the side plate without a flange (1) and the side plate with a flange (2).

10. A motor terminal box according to claim 9, characterized in that: Both the side plate without a flange (1) and the side plate with a flange (2) are formed by extrusion of aluminum.

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