Motor junction box and motor

Abstract

The embodiment of the utility model provides a motor junction box and a motor. The motor junction box comprises a junction box seat, a junction box cover, a seat sealing gasket and a cover sealing gasket, the bottom of the junction box base is connected with a motor base wire outlet of the motor, and the base sealing gasket is arranged between the junction box base and the motor base wire outlet; the top of the junction box seat is connected with the junction box cover, and the cover sealing gasket is arranged between the junction box seat and the junction box cover; a first limiting structure for limiting the seat sealing gasket is arranged at the bottom of the junction box seat; the top of the junction box base is provided with a second limiting structure used for limiting the cover sealing gasket. According to the scheme, the sealing performance of the motor junction box can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical engineering, in particular to a motor junction box and a motor. Background Art

[0002] The motor junction box is an essential component of the motor. The motor terminals are connected to the external power supply or motor driver in the motor junction box. The motor junction box includes a junction box seat and a junction box cover. The junction box seat is connected to the outlet of the motor seat, and the junction box cover is connected to the junction box seat. The junction box cover and the junction box seat are split structures to facilitate wiring operations after opening the junction box cover.

[0003] Due to the poor flatness of the junction box seat and the junction box cover, there is a gap at the connection between the junction box seat and the machine base outlet, and there is a gap at the connection between the junction box seat and the junction box cover, resulting in poor sealing of the junction box, and dust and water are easily introduced into the junction box, thereby affecting the operating reliability of the motor. Utility Model Content

[0004] In view of this, the motor junction box and the motor provided by the utility model can improve the sealing performance of the motor junction box.

[0005] According to a first aspect of an embodiment of the utility model, a motor junction box is provided, comprising: a junction box seat, a junction box cover, a seat sealing gasket and a cover sealing gasket; the bottom of the junction box seat is connected to the motor base wire outlet, and the seat sealing gasket is arranged between the junction box seat and the motor base wire outlet; the top of the junction box seat is connected to the junction box cover, and the cover sealing gasket is arranged between the junction box seat and the junction box cover; the bottom of the junction box seat is provided with a first limiting structure for limiting the seat sealing gasket; the top of the junction box seat is provided with a second limiting structure for limiting the cover sealing gasket.

[0006] In a first possible implementation, in combination with the first aspect above, the first limiting structure includes an annular groove arranged on the outer side of the bottom of the junction box seat; the seat sealing gasket includes a sheet-shaped sealing gasket body, and a first sealing rib is arranged on the side of the sealing gasket body opposite to the junction box seat; after the junction box seat is connected to the machine base outlet, the first sealing rib is located in the annular groove.

[0007] In a second possible implementation, in combination with the above-mentioned first possible implementation, the first limiting structure also includes a plurality of cylindrical grooves arranged on the outer side of the bottom of the junction box seat, the axis of the cylindrical groove is perpendicular to the bottom surface of the junction box seat, and a plurality of limiting columns are arranged on the side of the sealing gasket body opposite to the junction box seat; after the junction box seat is connected to the machine base outlet, the limiting column is located in the cylindrical groove, and different limiting columns are located in different cylindrical grooves, and the diameter of the cylindrical groove is equal to the diameter of the limiting column.

[0008] In a third possible implementation, in combination with the second possible implementation, the axis of the annular groove is perpendicular to and intersects with the axis of the cylindrical groove, and the axis of the annular groove is parallel to the bottom surface of the junction box seat.

[0009] In a fourth possible implementation, in combination with the above-mentioned second possible implementation, the cross-sections of the annular groove and the first sealing rib are both semicircular, and the cross-sectional radius of the annular groove is equal to the cross-sectional radius of the first sealing rib.

[0010] In a fifth possible implementation, in combination with the first possible implementation, a second sealing rib is provided on the side of the sealing gasket body opposite to the machine base wire outlet, and the second sealing rib is symmetrical with the first sealing rib about the sealing gasket body; after the junction box seat is connected to the machine base wire outlet, the second sealing rib contacts the end face of the machine base wire outlet.

[0011] In a sixth possible implementation, in combination with any one of the first to fifth possible implementations mentioned above, the first limiting structure also includes a plurality of first circular bosses arranged on the outer side of the bottom of the junction box seat, a through hole is provided on the first circular boss, and the junction box seat is connected to the machine base outlet through a bolt passing through the through hole; a plurality of first limiting holes are provided on the sealing gasket body; after the junction box seat is connected to the machine base outlet, the first circular boss is located in the first limiting hole, and different first circular bosses are located in different first limiting holes.

[0012] In a seventh possible implementation, in combination with the first aspect above, the second limiting structure includes an outer stopper arranged on the top of the junction box seat; the cover sealing gasket includes a first sealing portion and a second sealing portion vertically connected; after the junction box cover is connected to the junction box seat, the cover sealing gasket is sleeved on the outer stopper, and the inner side of the first sealing portion is in contact with the outer side surface of the outer stopper, and the second sealing portion is in contact with the top of the junction box seat.

[0013] In an eighth possible implementation, in combination with the seventh possible implementation, a third sealing rib is provided on a side of the second sealing portion opposite to the junction box cover; after the junction box cover is connected to the junction box seat, the junction box cover contacts the third sealing rib.

[0014] In a ninth possible implementation, in combination with the seventh possible implementation, the second limiting structure also includes a plurality of second circular bosses arranged on the top of the junction box seat, bolt holes are arranged on the second circular bosses, and the junction box seat and the junction box cover are connected by bolts matching the bolt holes; a plurality of second limiting holes are arranged on the second sealing portion; after the junction box seat is connected to the junction box cover, the second circular bosses are located in the second limiting holes, and different second circular bosses are located in different second limiting holes.

[0015] In a tenth possible implementation, in combination with the eighth possible implementation, the junction box cover is provided with an inner stop;

[0016] After the junction box cover is connected to the junction box seat, the side surface of the inner stop is fitted with the outer side of the first sealing part, the top of the inner stop is in contact with the third sealing rib, and the bottom of the inner stop is in contact with the end surface of the first sealing part away from the second sealing part.

[0017] According to a second aspect of an embodiment of the utility model, a motor is provided, comprising: a base and a motor junction box provided by the first aspect or any possible implementation of the first aspect; a base wire outlet on the base is connected to the motor junction box.

[0018] It can be known from the above technical scheme that a seat sealing gasket is arranged between the junction box seat and the machine base wire outlet, and the first limiting structure on the junction box seat limits the seat sealing gasket, so that the seat sealing gasket will not move out from between the junction box seat and the machine base wire outlet, thereby realizing a sealed connection between the junction box seat and the machine base wire outlet. A cover sealing gasket is arranged between the junction box seat and the junction box cover, and the second limiting structure on the junction box seat limits the cover sealing gasket, so that the cover sealing gasket will not move out from between the junction box seat and the junction box cover, thereby realizing a sealed connection between the junction box seat and the junction box cover. By arranging the seat sealing gasket and the cover sealing gasket, and limiting the seat sealing gasket by the first limiting structure, and limiting the cover sealing gasket by the second limiting structure, a sealed connection between the machine base wire outlet, the junction box seat and the junction box cover is realized, thereby improving the sealing performance of the motor junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a motor junction box of an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of a junction box seat of an embodiment of the utility model;

[0021] Figure 3 is a schematic diagram of a seat sealing pad according to an embodiment of the utility model;

[0022] Figure 4 is a schematic diagram of a seat sealing pad according to another embodiment of the utility model;

[0023] Figure 5 is a schematic diagram of a junction box seat of another embodiment of the utility model;

[0024] Figure 6 is a schematic diagram of a cover sealing gasket according to an embodiment of the utility model;

[0025] Figure 7 It is a schematic diagram of a junction box cover of an embodiment of the utility model;

[0026] Figure 8 It is a schematic diagram of a motor according to an embodiment of the utility model.

[0027] List of reference numerals:

[0028] 100: motor junction box; 110: junction box seat; 120: junction box cover; 130: seat gasket; 140: cover gasket; 210: base outlet; 111: first limiting structure; 112: second limiting structure; 113: annular groove; 114: cylindrical groove; 115: first circular boss; 116: through hole; 117: annular protrusion; 118: outer stop; 119: second circular boss; 1110: bolt hole; 131: gasket body; 132: first sealing rib; 133: limiting column; 134: second sealing rib; 135: first limiting hole; 141: first sealing part; 142: second sealing part; 143: third sealing rib; 1421: second limiting hole; 121: inner stop; 800: motor; 801: base. DETAILED DESCRIPTION

[0029] As mentioned above, the motor junction box includes a junction box seat and a junction box cover. Due to cost reasons, the flatness of the junction box seat and the junction box cover is poor, and there is a gap at the connection between the junction box seat and the machine base outlet, and there is also a gap at the connection between the junction box seat and the junction box cover, resulting in poor sealing of the junction box. Dust and water are easily introduced into the position where the gap exists, thereby affecting the reliable operation of the motor.

[0030] In the embodiment of the utility model, a seat sealing gasket is arranged between the junction box seat and the machine base wire outlet, a cover sealing gasket is arranged between the junction box seat and the junction box cover, and a first limiting structure for limiting the seat sealing gasket is arranged at the bottom of the junction box seat, and a second limiting structure for limiting the cover sealing gasket is arranged at the top of the junction box seat. The first limiting structure limits the seat sealing gasket between the junction box seat and the machine base, and the second limiting structure limits the cover sealing gasket between the junction box seat and the junction box cover. The seat sealing gasket eliminates the gap between the junction box seat and the machine base wire outlet, and the cover sealing gasket eliminates the gap between the junction box seat and the junction box cover, thereby improving the sealing line of the junction box, making it difficult for dust and water to enter the junction box, thereby improving the reliability of the motor.

[0031] The motor junction box and the motor provided in the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

[0032] Figure 1 Schematic diagram of a motor junction box according to an embodiment of the present utility model. Figure 1 As shown, the motor terminal box 100 includes a terminal box seat 110 , a terminal box cover 120 , a seat gasket 130 and a cover gasket 140 .

[0033] The bottom of the junction box seat 110 is connected to the motor base outlet 210, and the seat gasket 130 is arranged between the junction box seat 110 and the motor base outlet 210. The top of the junction box seat 110 is connected to the junction box cover 120, and the cover gasket 140 is arranged between the junction box seat 110 and the junction box cover 120. The bottom of the junction box seat 110 is provided with a first limiting structure 111 for limiting the seat gasket 130, and the top of the junction box seat 110 is provided with a second limiting structure 112 for limiting the cover gasket 140.

[0034] The bottom of the junction box seat 110 is provided with a plurality of through holes for bolts to pass through, and the end surface of the machine base outlet 210 is provided with bolt holes. The bolts passing through the through holes on the junction box seat 110 match with the bolt holes on the machine base outlet 210 to connect the junction box seat 110 with the machine base outlet 210. The top of the junction box seat 110 is provided with a plurality of bolt holes, and the junction box cover 120 is provided with a plurality of through holes. The bolts passing through the through holes on the junction box cover 120 match with the bolt holes on the junction box seat 110 to connect the junction box seat 110 with the junction box cover 120.

[0035] After the junction box seat 110 is connected to the base wire outlet 210, the seat sealing gasket 130 is clamped between the bottom of the junction box seat 110 and the end face of the base wire outlet 210, and the first limiting structure 111 limits the seat sealing gasket 130 so that the seat sealing gasket 130 will not move out from between the junction box seat 110 and the base wire outlet 210, thereby achieving a sealed connection between the junction box seat 110 and the base wire outlet 210.

[0036] After the junction box seat 110 is connected to the junction box cover 120, the cover sealing gasket 140 is clamped between the top of the junction box seat 110 and the junction box cover 120, and the second limiting structure 112 limits the cover sealing gasket 140 so that the cover sealing gasket 140 will not move out from between the junction box seat 110 and the junction box cover 120, thereby achieving a sealed connection between the junction box seat 110 and the junction box cover 120.

[0037] In the embodiment of the utility model, a seat gasket 130 is provided between the junction box seat 110 and the machine base outlet 210, and a first limiting structure 111 on the junction box seat 110 limits the seat gasket 130, so that the seat gasket 130 will not move out from between the junction box seat 110 and the machine base outlet 210, thereby realizing a sealed connection between the junction box seat 110 and the machine base outlet 210. A cover gasket 140 is provided between the junction box seat 110 and the junction box cover 120, and a second limiting structure 112 on the junction box seat 110 limits the cover gasket 140, so that the cover gasket 140 will not move out from between the junction box seat 110 and the junction box cover 120, thereby realizing a sealed connection between the junction box seat 110 and the junction box cover 120. By providing a seat sealing gasket 130 and a cover sealing gasket 140, and limiting the seat sealing gasket 130 by a first limiting structure 111, and limiting the cover sealing gasket 140 by a second limiting structure 112, a sealed connection between the base wire outlet 210, the junction box seat 110 and the junction box cover 120 is achieved, thereby improving the sealing performance of the motor junction box 100.

[0038] In a possible implementation, the first limiting structure 111 can limit the seat sealing pad 130 to move in a direction parallel to the end surface of the base outlet 210, so that the junction box seat 110 and the base outlet 210 can be sealed and connected. Figure 2 As shown in the schematic diagram of the junction box seat 110, the first limiting structure 111 includes an annular groove 113 arranged on the bottom outer side of the junction box seat 110. Figure 3 The schematic diagram of the seat sealing gasket 130 shown in FIG. 1 includes a sheet-shaped sealing gasket body 131 . A first sealing rib 132 is provided on a side of the sealing gasket body 131 opposite to the junction box seat 110 .

[0039] After the junction box seat 110 is connected to the machine base outlet 210, the side of the sealing gasket body 131 opposite to the junction box seat 110 is in contact with the outer side of the bottom of the junction box seat 110, and the first sealing rib 132 is located in the annular groove 113. Since the first sealing rib 131 is located in the annular groove 113, the annular groove 113 limits the first sealing rib 131 in a direction parallel to the bottom of the junction box seat 110, so that the seat sealing gasket 130 cannot move in a direction parallel to the bottom of the junction box seat 110, so that the seat sealing gasket 130 can achieve a sealed connection between the junction box seat 110 and the machine base outlet 210.

[0040] It should be noted that the seat gasket 130 is an annular structure, the corresponding gasket body 131 is a sheet-shaped annular structure, and the first sealing rib 132 is an annular structure. The gasket body 131 and the first sealing rib 132 can be integrally formed, and the material of the gasket body 131 and the first sealing rib 132 can be elastic rubber.

[0041] In the embodiment of the utility model, the seat sealing gasket 130 includes a sealing gasket body 131 and a first sealing rib 132 arranged on the sealing gasket body 131, the first limiting structure 111 includes an annular groove 113, the first sealing rib 132 is located in the annular groove 113, and the annular groove 113 limits the first sealing rib 132, so that the seat sealing gasket 130 cannot move in a direction parallel to the bottom of the junction box seat 110, so that the seat sealing gasket 130 exists at the connection between the junction box seat 110 and the machine base outlet 210, and the connection between the junction box seat 110 and the machine base outlet 210 is sealed by the seat sealing gasket 130, thereby ensuring the sealing between the junction box seat 110 and the machine base outlet 210.

[0042] In one possible implementation, Figure 2 As shown, the first limiting structure 111 also includes a plurality of cylindrical grooves 114 disposed on the outer side of the bottom of the junction box seat 110, and the axis of the cylindrical groove 114 is perpendicular to the bottom surface of the junction box seat 110. Figure 3 As shown, a plurality of limiting posts 133 are disposed on the side of the sealing pad body 131 opposite to the junction box seat.

[0043] After the junction box seat 110 is connected to the base outlet 210, the limiting column 133 is located in the cylindrical groove 114, and different limiting columns 133 are located in different cylindrical grooves 114. The diameter of the limiting column 133 can be equal to the diameter of the cylindrical groove 114, for example, the diameters of the limiting column 133 and the cylindrical groove 114 are both equal to 5 mm. The height of the limiting column 133 can be equal to the depth of the cylindrical groove 114, for example, the height of the limiting column 133 and the depth of the cylindrical groove 114 are both equal to 5 mm, and the height of the limiting column 133 can also be slightly less than the depth of the cylindrical groove 114.

[0044] The axis of the limiting column 133 is perpendicular to the bottom surface of the junction box seat 110. When the limiting column 133 is located in the cylindrical groove 114, the cylindrical groove 114 can limit the limiting column 133 in a direction parallel to the bottom surface of the junction box seat 110, so that the seat sealing gasket 130 cannot move in a direction parallel to the bottom of the junction box seat 110.

[0045] In the embodiment of the utility model, the annular groove 113 limits the first sealing rib 132 in a direction parallel to the bottom surface of the junction box seat 110, and the cylindrical groove 114 limits the limiting column 133 in a direction parallel to the bottom surface of the junction box seat 110. The double limiting makes it impossible for the seat sealing gasket 130 to move in a direction parallel to the bottom of the junction box seat 110, thereby ensuring that the first limiting structure 111 can effectively limit the seat sealing gasket 130, thereby ensuring the sealing between the junction box seat 110 and the machine base outlet 210.

[0046] In one possible implementation, Figure 3 As shown, the axis of the annular groove 113 and the axis of the cylindrical groove 114 are perpendicular and intersecting, and the axis of the annular groove 113 is parallel to the bottom surface of the junction box seat 110 , that is, part of the notch of the cylindrical groove 114 is located in the annular groove 113 .

[0047] The depth of the cylindrical groove 114 is greater than the depth of the annular groove 113. When the seat sealing gasket 130 is assembled on the junction box seat 110, the limiting column 133 is placed in the cylindrical groove 114, and the seat sealing gasket 130 is positioned through the cylindrical groove 114, so that the first sealing rib 132 is completely located in the annular groove 113, thereby preventing the first sealing rib 132 from falling out of the annular groove 113 during the process of assembling the junction box seat 110 on the machine base outlet 210.

[0048] In one example, the annular groove 113 forms a rounded rectangle, and the number of the cylindrical grooves 114 may be four, and the four cylindrical grooves 114 are distributed on the four sides of the annular groove 113 , for example, a cylindrical groove 114 is provided at the midpoint of each side of the annular groove 113 .

[0049] Since the width of the sealing gasket body 131 is small, the axis of the annular groove 113 and the axis of the cylindrical groove 114 are perpendicular and intersecting, so that the limiting column 133 can be located on the first sealing rib 132, so that the structure of the seat sealing gasket 130 is compact, and there is no need to adjust the structure of the machine base outlet 210 while ensuring the sealing performance.

[0050] In the embodiment of the utility model, the axis of the annular groove 113 and the axis of the cylindrical groove 114 are perpendicular and intersecting, the limiting column 133 is located in the cylindrical groove 114, and the cylindrical groove 114 positions the seat sealing gasket 130 through the limiting column 133, ensuring that during the process of assembling the junction box seat 110 to the machine base outlet 210, the first sealing rib 132 is disengaged from the annular groove 113, so that after the junction box seat 110 is assembled to the machine base outlet 210, the first sealing rib 132 is located in the annular groove 113, so that the first sealing rib 132 can be in close contact with the annular groove 113 in a direction parallel to the bottom surface of the junction box seat 110, thereby ensuring the sealing between the junction box seat 110 and the seat sealing gasket 130.

[0051] In a possible implementation, the cross-sections of the annular groove 113 and the first sealing rib 132 are both semicircular, and the cross-sectional radius of the annular groove 113 is equal to the cross-sectional radius of the first sealing rib 132 .

[0052] In one example, the cross-sectional radius of the annular groove 113 and the cross-sectional radius of the first sealing rib 132 are both equal to 1.5 mm.

[0053] In the embodiment of the utility model, the cross-sections of the annular groove 113 and the first sealing rib 132 are both semicircular, which facilitates the assembly of the first sealing rib 132 into the annular groove 113, and can also reduce the production difficulty and cost of the seat sealing gasket 130. The cross-sectional radius of the annular groove 113 is equal to the cross-sectional radius of the first sealing rib 132. After the junction box seat 110 is assembled on the machine base outlet 210, the first sealing rib 132 fills the annular groove 113, thereby improving the sealing between the junction box seat 110 and the seat sealing gasket 130.

[0054] In one possible implementation, Figure 4 As shown in the schematic diagram of the base sealing gasket 130, a second sealing rib 134 is provided on the side of the sealing gasket body 131 opposite to the base outlet 210, and the second sealing rib 134 and the first sealing rib 132 are symmetrical about the sealing gasket body 131. After the junction box base 110 is connected to the base outlet 210, the second sealing rib 134 contacts the end surface of the base outlet 210.

[0055] Since the seat sealing gasket 130 is elastic, when the junction box seat 110 is connected to the base wire outlet 210, the seat sealing gasket 130 is clamped between the junction box seat 110 and the base wire outlet 210. At this time, the second sealing rib 134 undergoes elastic deformation and fits tightly against the base wire outlet 210, thereby ensuring the sealing between the seat sealing gasket 130 and the end face of the base wire outlet 210.

[0056] The second sealing rib 134 is symmetrical with the first sealing rib 132 about the sealing gasket body 131, that is, the second sealing rib 134 has the same cross-sectional shape and size as the first sealing rib 132. For example, the cross-sectional shapes of the second sealing rib 134 and the first sealing rib 132 are both semicircular with a radius of 1.5 mm. The second sealing rib 134 is symmetrical with the first sealing rib 132 about the sealing gasket body 131, ensuring that the seat sealing gasket 130 will not be twisted after being clamped by the junction box seat 110 and the machine base outlet 210, thereby ensuring the sealing between the seat sealing gasket 130 and the junction box seat 110 and the machine base outlet 210.

[0057] In the embodiment of the utility model, symmetrical first sealing ribs 132 and second sealing ribs 134 are arranged on both sides of the sealing gasket body 131. When the seat sealing gasket 130 is clamped between the junction box seat 110 and the machine base outlet 210, the seat sealing gasket 130 will not be twisted, and at the same time, the second sealing ribs 134 are elastically deformed and tightly attached to the machine base outlet 210, thereby ensuring the sealing between the seat sealing gasket 130 and the end face of the machine base outlet 210.

[0058] In one possible implementation, Figure 2 As shown, the first limiting structure 111 also includes a plurality of first circular bosses 115 disposed on the outer side of the bottom of the junction box seat 110, and a through hole 116 is disposed on the first circular boss 115. The junction box seat 110 is connected to the base interface line 210 by bolts passing through the through holes 116. Figure 3 and Figure 4 As shown, a plurality of first limiting holes 135 are provided on the sealing pad body 131. After the junction box seat 110 is connected to the base outlet 210, the first circular boss 115 is located in the first limiting hole 135, and different first circular bosses 115 are located in different first limiting holes 135.

[0059] The diameter of the first circular boss 115 may be equal to the diameter of the first limiting hole 135 , for example, the diameter of the first circular boss 115 and the diameter of the first limiting hole 135 are both equal to 20 mm, and the height of the first circular boss 115 may be equal to 5 mm.

[0060] The first circular boss 115 is disposed inside the annular groove 113 . The number of the first graphic bosses 115 may be four. For example, the four first circular bosses 115 are disposed at positions adjacent to the four corners of the annular groove 113 .

[0061] In the embodiment of the utility model, a first circular boss 115 is provided on the outer side of the bottom of the junction box seat 110, and a first limiting hole 135 is provided on the sealing gasket body 131. After the seat sealing gasket 130 is assembled to the junction box seat 110, the first circular boss 115 is located in the first limiting hole 135, and the seat sealing gasket 130 is further limited by the first circular boss 115 to ensure that the seat sealing gasket 130 is in a flat state when it is clamped between the junction box seat 110 and the machine base outlet 210, so that the seat sealing gasket 130 cannot move in a direction parallel to the bottom of the junction box seat 110, so that the seat sealing gasket 130 exists at the connection between the junction box seat 110 and the machine base outlet 210, and the connection between the junction box seat 110 and the machine base outlet 210 is sealed by the seat sealing gasket 130, thereby ensuring the sealing between the junction box seat 110 and the machine base outlet 210.

[0062] In one possible implementation, Figure 2 As shown, an annular protrusion 117 is provided on the outer side of the bottom of the junction box seat 110, and the annular groove 113 is located in the annular protrusion 117. After the junction box seat 110 is connected to the machine base outlet 210, the annular protrusion 117 is sleeved on the machine base outlet 210, and the outer edge of the seat sealing gasket 130 can be fitted with the inner side of the annular protrusion 117, so that the annular protrusion 117 can position the seat sealing gasket 130, and can protect the seat sealing gasket 130, thereby extending the service life of the seat sealing gasket 130.

[0063] In one possible implementation, Figure 5 In the schematic diagram of the junction box seat 110 shown, the second limiting structure 112 includes an outer stop 118 disposed on the top of the junction box seat 110. The cover sealing gasket 140 includes a first sealing portion 141 and a second sealing portion 142 disposed thereon. After the junction box seat 110 is connected to the junction box cover 120, the cover sealing gasket 140 is sleeved on the outer stop 118, and the inner side of the first sealing portion 141 is in contact with the outer side of the outer stop 118, and the second sealing portion 142 is in contact with the top of the junction box seat 110.

[0064] The first sealing portion 141 and the second sealing portion 142 are perpendicular to each other, so that the cross section of the cover sealing gasket 140 is L-shaped. The height of the first sealing portion 141 may be 2.5 mm.

[0065] When the junction box seat 110 is connected to the junction box cover 120 , the junction box cover 120 is tightly fitted with the first sealing portion 141 and the second sealing portion 142 , respectively, so as to achieve sealing between the junction box seat 110 and the junction box cover 120 .

[0066] In the embodiment of the utility model, after the junction box seat 110 is connected to the junction box cover 120, the inner side of the first sealing portion 141 fits with the outer side surface of the outer stop 118, and the outer stop 118 limits the cover sealing gasket 140 in a direction parallel to the top surface of the junction box cover 120, so that the cover sealing gasket 140 cannot move in a direction parallel to the top surface of the junction box cover 120, so that the cover sealing gasket 140 exists at the connection between the junction box seat 110 and the junction box cover 120, and the connection between the junction box seat 110 and the junction box cover 120 is sealed by the cover sealing gasket 140, thereby ensuring the sealing between the junction box seat 110 and the junction box cover 120.

[0067] In one possible implementation, Figure 6 As shown in the schematic diagram of the cover sealing gasket 140 , a third sealing rib 143 is provided on the side of the second sealing portion 142 opposite to the junction box cover 120 , and after the junction box seat 110 and the junction box cover 120 are connected, the junction box cover 120 contacts the third sealing rib 143 .

[0068] Since the cover sealing gasket 140 is elastic, when the junction box seat 110 and the junction box cover 120 are connected, the cover sealing gasket 140 is clamped between the junction box seat 110 and the junction box cover 120. At this time, the third sealing rib 143 undergoes elastic deformation and fits tightly against the junction box cover 120, thereby ensuring the sealing between the junction box seat 110 and the junction box cover 120.

[0069] The cross section of the third sealing rib 143 may be semicircular, and the radius of the cross section of the third sealing rib 143 may be 1.5 mm.

[0070] In the embodiment of the utility model, a third sealing rib 143 is provided on the second sealing portion 142. The third sealing rib 143 undergoes elastic deformation to fit tightly against the junction box cover 120. At the same time, the second sealing portion 142 undergoes elastic deformation to fit tightly against the junction box seat 110, thereby ensuring the sealing between the junction box seat 110 and the junction box cover 120.

[0071] In one possible implementation, Figure 5 As shown, the second limiting structure 112 also includes a plurality of second circular bosses 119 disposed on the top of the junction box seat 110, and the second circular bosses 119 are provided with bolt holes 1110, and the junction box seat 110 and the junction box cover 120 are connected by bolts matching the bolt holes 1110. Figure 6 As shown, a plurality of second limiting holes 1421 are provided on the second sealing portion 142. After the junction box seat 110 is connected to the junction box cover 120, the second circular boss 119 is located in the second limiting hole 1421, and different second circular bosses 119 are located in different second limiting holes 1421.

[0072] The diameter of the second circular boss 119 may be equal to the diameter of the second limiting hole 1421 , for example, the diameter of the second circular boss 119 and the diameter of the second limiting hole 1421 may both be equal to 5 mm, and the height of the second graphic boss 119 may be equal to 5 mm.

[0073] The second circular bosses 119 are disposed at the corners of the top of the junction box seat 110 . The number of the second graphic bosses 119 may be four, for example, four second circular bosses 119 are disposed at the four corners of the top of the junction box seat 110 .

[0074] In the embodiment of the utility model, a second circular boss 119 is arranged on the top of the junction box seat 110, and a second limiting hole 1421 is arranged on the second sealing portion 142. After the junction box seat 110 is connected to the junction box cover 120, the second circular boss 119 is located in the second limiting hole 1421, and the cover sealing gasket 140 is further positioned by the second circular boss 119 to ensure that the cover sealing gasket 140 cannot move in a direction parallel to the top surface of the junction box cover 120, so that the cover sealing gasket 140 exists at the connection between the junction box seat 110 and the junction box cover 120, and the connection between the junction box seat 110 and the junction box cover 120 is sealed by the cover sealing gasket 140 to ensure the sealing between the junction box seat 110 and the junction box cover 120.

[0075] In one possible implementation, Figure 7 The schematic diagram of the junction box cover 120 is shown, and an inner stop 121 is provided on the junction box cover 120. After the junction box seat 110 is connected to the junction box cover 120, the side surface of the inner stop 121 fits with the outer side of the first sealing portion 141, the top of the inner stop 121 contacts the third sealing rib 143, and the bottom of the inner stop 121 contacts the end surface of the first sealing portion 141 away from the second sealing portion 142.

[0076] The height of the inner stop 121 may be 4.2 mm.

[0077] In the embodiment of the utility model, an inner stop 121 is provided on the junction box cover 120. After the junction box seat 110 is connected to the junction box cover 120, the side surface of the inner stop 121 is fitted with the first sealing portion 141, and the top of the inner stop 121 is fitted with the third sealing rib 143. The connection position between the junction box seat 110 and the junction box cover 120 is sealed in a direction parallel to the top surface of the junction box cover 120 and a direction perpendicular to the top surface of the junction box cover 120, thereby ensuring the sealing between the junction box seat 110 and the junction box cover 120.

[0078] The utility model also provides a motor, such as Figure 8 The schematic diagram of the motor shown, the motor 800 comprises: a base 801 and a motor terminal box 100 in any of the above embodiments;

[0079] The base outlet 210 on the base 801 is connected to the motor junction box 100 .

[0080] It should be noted that not all steps and modules in the above-mentioned processes and system structure diagrams are necessary, and some steps or modules can be ignored according to actual needs. The execution order of each step is not fixed and can be adjusted as needed. The system structure described in the above-mentioned embodiments can be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or some components in multiple independent devices may be implemented together.

[0081] Nouns and pronouns relating to persons in this patent application are not limited to a specific gender.

[0082] The present invention has been shown and described in detail above through the accompanying drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Based on the above multiple embodiments, those skilled in the art can know that the code review methods in the above different embodiments can be combined to obtain more embodiments of the present invention, and these embodiments are also within the protection scope of the present invention.

Claims

1. A motor junction box (100), characterized in that: include: A junction box seat (110), a junction box cover (120), a seat gasket (130) and a cover gasket (140); The bottom of the junction box seat (110) is connected to the motor base wire outlet (210), and the seat sealing gasket (130) is arranged between the junction box seat (110) and the motor base wire outlet (210); The top of the junction box seat (110) is connected to the junction box cover (120), and the cover sealing gasket (140) is arranged between the junction box seat (110) and the junction box cover (120); A first limiting structure (111) for limiting the position of the seat sealing gasket (130) is provided at the bottom of the junction box seat (110); A second limiting structure (112) for limiting the position of the cover sealing gasket (140) is provided on the top of the junction box seat (110).

2. The motor terminal box (100) according to claim 1, characterized in that: The first limiting structure (111) comprises an annular groove (113) arranged on the outer side of the bottom of the junction box seat (110); The seat sealing gasket (130) comprises a sheet-shaped sealing gasket body (131), and a first sealing rib (132) is provided on a side of the sealing gasket body (131) opposite to the junction box seat (110); After the junction box seat (110) is connected to the machine base wire outlet (210), the first sealing rib (132) is located in the annular groove (113).

3. The motor terminal box (100) according to claim 2, characterized in that: The first limiting structure (111) further comprises a plurality of cylindrical grooves (114) arranged on the outer side of the bottom of the junction box seat (110), the axis of the cylindrical grooves (114) being perpendicular to the bottom surface of the junction box seat (110), and a plurality of limiting columns (133) being arranged on a side of the sealing pad body (131) opposite to the junction box seat (110); After the junction box seat (110) is connected to the base wire outlet (210), the limiting column (133) is located in the cylindrical groove (114), and different limiting columns (133) are located in different cylindrical grooves (114), and the diameter of the cylindrical groove (114) is equal to the diameter of the limiting column (133).

4. The motor terminal box (100) according to claim 3, characterized in that: The axis of the annular groove (113) is perpendicular to and intersects with the axis of the cylindrical groove (114), and the axis of the annular groove (113) is parallel to the bottom surface of the junction box seat (110).

5. The motor terminal box (100) according to claim 3, characterized in that: The cross-sections of the annular groove (113) and the first sealing rib (132) are both semicircular, and the cross-sectional radius of the annular groove (113) is equal to the cross-sectional radius of the first sealing rib (132).

6. The motor terminal box (100) according to claim 2, characterized in that: A second sealing rib (134) is provided on a side of the sealing gasket body (131) opposite to the machine base wire outlet (210), and the second sealing rib (134) and the first sealing rib (132) are symmetrical with respect to the sealing gasket body (131); After the junction box seat (110) is connected to the machine base wire outlet (210), the second sealing rib (134) contacts the end surface of the machine base wire outlet (210).

7. The motor junction box (100) according to any one of claims 2 to 6, characterized in that: The first limiting structure (111) further comprises a plurality of first circular bosses (115) arranged on the outer side of the bottom of the junction box seat (110), the first circular bosses (115) being provided with through holes (116), and the junction box seat (110) being connected to the machine base wire outlet (210) via bolts passing through the through holes (116); The sealing pad body (131) is provided with a plurality of first limiting holes (135); After the junction box seat (110) is connected to the base wire outlet (210), the first circular boss (115) is located in the first limiting hole (135), and different first circular bosses (115) are located in different first limiting holes (135).

8. The motor junction box (100) according to claim 1, characterized in that: The second limiting structure (112) comprises an outer stop (118) arranged on the top of the junction box seat (110); The cover sealing gasket (140) comprises a first sealing portion (141) and a second sealing portion (142) which are vertically connected; After the junction box cover (120) is connected to the junction box seat (110), the cover sealing gasket (140) is sleeved on the outer stop (118), and the inner side of the first sealing portion (141) is in contact with the outer side of the outer stop (118), and the second sealing portion (142) is in contact with the top of the junction box seat (110).

9. The motor terminal box (100) according to claim 8, characterized in that: A third sealing rib (143) is provided on a side of the second sealing portion (142) opposite to the junction box cover (120); After the junction box cover (120) is connected to the junction box seat (110), the junction box cover (120) contacts the third sealing rib (143).

10. The motor terminal box (100) according to claim 8, characterized in that: The second limiting structure (112) further comprises a plurality of second circular bosses (119) arranged on the top of the junction box seat (110), the second circular bosses (119) being provided with bolt holes (1110), and the junction box seat (110) and the junction box cover (120) being connected via bolts matching the bolt holes (1110); The second sealing portion (142) is provided with a plurality of second limiting holes (1421); After the junction box seat (110) is connected to the junction box cover (120), the second circular boss (119) is located in the second limiting hole (1421), and different second circular bosses (119) are located in different second limiting holes (1421).

11. The motor terminal box (100) according to claim 9, characterized in that: The junction box cover (120) is provided with an inner stop (121); After the junction box cover (120) is connected to the junction box seat (110), the side surface of the inner stop (121) fits against the outer side of the first sealing portion (141), the top of the inner stop (121) contacts the third sealing rib (143), and the bottom of the inner stop (121) contacts the end surface of the first sealing portion (141) away from the second sealing portion (142).

12. A motor (800), characterized in that: include: A machine base (801) and a motor junction box (100) as described in any one of claims 1 to 11; The base wire outlet (210) on the base is connected to the motor junction box (100).

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