Electric connector sealing box, assembling method and electric connector sealing system

Abstract

The invention provides an electric connector sealing box, an assembling method and an electric connector sealing system. The electric connector sealing box comprises a bottom shell, an upper cover and a locking push rod. The upper cover comprises a first side wall, and the bottom shell comprises a second side wall; the second side wall is provided with a push rod space; the locking push rod is arranged in the push rod space and can move back and forth in the push rod space; a first locking surface and a second locking surface are arranged on the first side wall front and back, and a third locking surface opposite to the locking push rod is arranged on the locking push rod; a first clamping surface is arranged on the first side wall, and a second clamping surface opposite to the first clamping surface is arranged on the locking push rod; a reset spring is arranged between the locking push rod and the bottom shell. When the bottom shell and the upper cover are in a locked state, the first locking face abuts against the third locking face, the first clamping face abuts against the second clamping face, and the reset spring is released and reset. The device has the advantages of greatly simplifying assembly and disassembly, being convenient to operate, safe and reliable, and strong in sealing performance.

Description

Technical Field

[0001] The present invention relates to an electrical fitting, in particular to an electrical connector sealing box, an electrical connector sealing system using the electrical connector sealing box, and an assembly method of an electrical connector, so as to provide a reliable sealing environment for the electrical connector. Background Art

[0002] An electrical connector sealing box is used to seal the electrical connector and the end of the conductor therein, so as to provide a reliable sealing environment and reduce the electrical safety risks such as short circuit, misoperation, electric shock, etc.

[0003] For example, a box body wiring terminal integrated wiring box disclosed in the utility model patent with the authorization announcement number CN201893526U includes a box body and a wiring terminal. The wiring terminal is fixedly arranged in the box body. The box body includes a bottom plate, two side walls, a front connection wall and a rear connection wall. A box cavity is formed by surrounding with the bottom plate, the two side walls, the front connection wall and the rear connection wall.

[0004] Another example is a waterproof wiring box and its waterproof wiring terminal disclosed in the utility model patent with the authorization announcement number CN222601963U, which includes a wiring seat assembly, an insulating sealing cap and a first insulating sealing ring. Through the sealing between the insulating sealing cap, the external thread stud and the insulating layer of the wire core by the first insulating sealing ring, the waterproof isolation between the wire core and the external environment is realized, and the waterproof of the wiring position is effectively realized, ensuring the waterproof performance of the wiring terminal during use.

[0005] Existing electrical connector sealing boxes generally include a bottom shell and an upper cover. The bottom shell and the upper cover are combined to form a sealing cavity for accommodating the electrical connector. Through holes are opened on the side wall or the top wall of the sealing box for the wire to pass through. The bottom shell and the upper cover are fastened by a plurality of longitudinal screws to enhance the sealing effect, but the disassembly and reassembly are relatively cumbersome, and the screws, as conductors, increase the safety hazards. Summary of the Invention

[0006] In view of the problems of cumbersome disassembly and reassembly and increased safety risks such as short circuit caused by traditional locking methods such as screws and bolts in existing electrical connector sealing boxes, the technical problem to be solved by the present invention is to provide an electrical connector sealing box, and further provide an electrical connector sealing system using the sealing box and an assembly of the electrical connector, so that the electrical connector sealing box is convenient for disassembly and assembly, and the sealing and insulation are reliable.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: an electrical connector sealing box, including a bottom shell, an upper cover and at least one locking push rod;

[0008] The upper cover includes at least one first side wall, and the bottom shell includes at least one second side wall; the bottom shell and the upper cover are aligned to form a sealed cavity for accommodating the electrical connector, and the first side wall and the second side wall are aligned; the second side wall has a push rod space, and the locking push rod is disposed in the push rod space and can move back and forth in the push rod space;

[0009] A first locking surface and a second locking surface are provided on the first side wall in a forward and backward direction of movement of the locking push rod, and a third locking surface is provided on the locking push rod opposite to the first locking surface and the second locking surface; a first clamping surface is provided on the first side wall, and a second clamping surface is provided on the locking push rod opposite to the first clamping surface;

[0010] A return spring is provided between the locking push rod and the bottom shell;

[0011] When the bottom shell and the upper cover are in a locked state, the first locking surface abuts against the third locking surface, the first clamping surface abuts against the second clamping surface, and the return spring is released to return to its original position;

[0012] When the bottom shell and the upper cover are in an unlocked state, the second locking surface abuts against the third locking surface, the first clamping surface and the second clamping surface are dislocated and separated, and the return spring is compressed.

[0013] The preferred technical solution adopted by the present invention to solve the above technical problem is: a first locking strip and a second locking strip parallel to each other are protruded from the first side wall, the first locking surface is located on the first locking strip, and the second locking surface is located on the second locking strip;

[0014] The locking push rod is provided with a third locking strip, and the third locking surface is located on the third locking strip;

[0015] The third locking strip is deformed to pass over the second locking strip to switch between the locked state and the unlocked state; a gap is left between the third locking strip and the second side wall of the bottom shell for the third locking strip to deform.

[0016] The preferred technical solution adopted by the present invention to solve the above technical problems is as follows: the second locking strip has a second sloped surface toward the front end, and the second sloped surface is inclined from front to back and from low to high; the third locking strip has a third sloped surface toward the rear end, and the third sloped surface is inclined from back to front and from low to high;

[0017] When the upper cover and the bottom case are mated, the third ramp surface is guided and pushed by the second ramp surface so that the locking push rod moves backward and the return spring is compressed; when the upper cover and the bottom case are mated in place, the return spring releases and resets to push the locking push rod forward to the position in the locked state.

[0018] The preferred technical solution adopted by the present invention to solve the above technical problems is that: at both ends of the first side wall, a first clamping block is convexly provided, and the first clamping surface is the upper surface of the first clamping block;

[0019] At both ends of the locking push rod, a second clamping block is provided. The second clamping block includes a longitudinal arm and a transverse arm extending forward from the upper part of the longitudinal arm, and the second clamping surface is the lower surface of the transverse arm;

[0020] The locking push rod is provided with a clamping channel on the front side of the second clamping block, and the clamping channel has an entrance and an exit;

[0021] When the upper cover and the bottom case are separated, the first clamping block leaves the clamping channel through the entrance and exit; when the upper cover and the bottom case are mated, the first clamping block enters the clamping channel through the entrance and exit; the first clamping block can move back and forth in the clamping channel.

[0022] The preferred technical solution adopted by the present invention to solve the above technical problems is that: several upper limiting surfaces are provided at the upper end of the second side wall, and several lower limiting surfaces are provided at the lower end of the second side wall; several limiting blocks are longitudinally provided on the locking push rod;

[0023] The upper surface of the limiting block abuts against the upper limiting surface, and the lower surface of the locking push rod abuts against the lower limiting surface to vertically limit the locking push rod within the push rod space.

[0024] The preferred technical solution adopted by the present invention to solve the above technical problems is that: several upper limiting blocks are convexly provided at the upper end of the second side wall, and several lower limiting blocks are convexly provided at the lower end of the second side wall; the upper limiting blocks and the lower limiting blocks are arranged in a staggered manner;

[0025] The upper limiting surface is the lower surface of the upper limiting block, and the lower limiting surface is the upper surface of the lower limiting block;

[0026] A space is left between each of the upper limiting blocks for the first locking surface, the second locking surface and the first clamping surface to pass through.

[0027] The preferred technical solution adopted by the present invention to solve the above technical problems is as follows: A first chamber through which the locking push rod passes is provided at the front end of the second side wall. The front end of the first chamber has an operation port, and the front end of the locking push rod extends out through the operation port.

[0028] The inner top wall of the first chamber is an upper limit surface, the inner side wall of the first chamber is an inner limit surface, and the outer side wall of the first chamber is an outer limit surface. The inner limit surface and the outer limit surface limit the locking push rod left and right within the push rod space.

[0029] The preferred technical solution adopted by the present invention to solve the above technical problems is as follows: A second chamber into which the rear end of the locking push rod penetrates is provided at the rear end of the second side wall.

[0030] The return spring is a torsion spring and is arranged between the rear end of the locking push rod and the rear side wall of the second chamber.

[0031] The inner top wall of the second chamber is an upper limit surface, the inner side wall of the second chamber is an inner limit surface, and the outer side wall of the second chamber is an outer limit surface. The inner limit surface and the outer limit surface limit the locking push rod left and right within the push rod space.

[0032] Another technical solution adopted by the present invention to solve the above technical problems is: An assembly method for an electrical connector sealing box, the assembly object of which is an electrical connector sealing box, including a bottom shell, an upper cover, and at least one locking push rod.

[0033] The upper cover includes at least one first side wall, and the bottom shell includes at least one second side wall. The second side wall has a push rod space.

[0034] On the first side wall, a first locking strip and a second locking strip that are parallel to each other protrude forward and backward along the moving direction of the locking push rod. The first locking strip has a first locking surface facing the rear end, and the second locking strip has a second locking surface facing the rear end. A third locking strip is provided on the locking push rod, and the third locking strip has a third locking surface facing the front end.

[0035] The second locking strip has a second ramp surface facing the front end, and the inclination direction of the second ramp surface is from front to back and from low to high. The third locking strip has a third ramp surface facing the rear end, and the inclination direction of the third ramp surface is from back to front and from low to high.

[0036] A first clamping surface is provided on the first side wall, and a second clamping surface opposite to the first clamping surface is provided on the locking push rod.

[0037] A return spring is provided between the locking push rod and the bottom shell.

[0038] It includes the following steps:

[0039] Step 1: Place the return spring into the push rod space and position it at the reserved position between the locking push rod and the bottom case.

[0040] Step 2: Pass the locking push rod through the push rod space, and the return spring is arranged between the rear end of the locking push rod and the bottom case.

[0041] Step 3: Align the upper cover with the bottom case, align the first side wall with the second side wall, and the third ramp surface is guided and pushed by the second ramp surface so that the locking push rod moves backward and the return spring is compressed.

[0042] Step 4: When the upper cover and the bottom case are aligned in place, the return spring releases and resets to push the locking push rod forward.

[0043] Step 5: The first locking surface abuts against the third locking surface, the first clamping surface abuts against the second clamping surface, and the bottom case and the upper cover are in a locked state.

[0044] Another technical solution adopted by the present invention to solve the above technical problems is: an electrical connector sealing system, including an electrical connector and an electrical connector sealing box, and the electrical connector is accommodated in the sealing cavity formed by the alignment of the bottom case and the upper cover.

[0045] Compared with the prior art, the advantages of the present invention are: by providing a first side wall on the upper cover and a second side wall on the bottom case, the first side wall and the second side wall are aligned to form a push rod space, and a locking structure and a clamping structure are provided between the push rod space and the locking push rod. The locking and unlocking between the upper cover and the bottom case are realized by the reciprocating movement of the locking push rod in the push rod space, thus solving the problems of cumbersome disassembly and reassembly caused by screw fastening in the prior art, eliminating the potential safety hazard of short circuit caused by screws, greatly simplifying the assembly and disassembly of the electrical connector sealing system, which can be completed manually without the aid of tools such as screwdrivers, and improving the sealing fastening force from the point force of the screw to the linear force of the locking push rod, with convenient operation, reliable safety and strong sealing performance. Description of the Drawings

[0046] The present invention will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be used as a limitation to the scope of the present invention. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0047] Figure 1Schematic structural diagram of an electrical connector sealing system;

[0048] Figure 2 For the disassembly of the electrical connector sealing system Figure 1 ;

[0049] Figure 3 For the disassembly of the electrical connector sealing system Figure 2 ;

[0050] Figure 4 Exploded view of the electrical connector sealing box;

[0051] Figure 5 Cross-sectional view of the upper cover of the electrical connector sealing box;

[0052] Figure 6 Schematic structural diagram of the bottom shell of the electrical connector sealing box;

[0053] Figure 7 Schematic structural diagram of the locking push rod of the electrical connector sealing box;

[0054] Figure 8 Perspective view when the upper cover and the bottom shell of the electrical connector sealing box are aligned;

[0055] Figure 9 Perspective view of the upper cover and the bottom shell of the electrical connector sealing box in the locked state;

[0056] Figure 10 Perspective view of the upper cover and the bottom shell of the electrical connector sealing box in the unlocked state;

[0057] Explanation of reference numerals:

[0058] Electrical connector sealing system 200, electrical connector 201, electrical connector sealing box 100, bottom shell 101, upper cover 102, inlet d, locking push rod 103, front end 103a, first side wall 10, second side wall 20, sealing cavity m, push rod space n, first locking surface 11, second locking surface 12, first clamping surface 13, first locking strip 14, second locking strip 15, first clamping block 16, upper limit surface 21, lower limit surface 22, upper limit block 23, lower limit block 24, first chamber 25, operation port c, inner side wall 25b, second chamber 26, inner side wall 26b, third locking surface 31, second clamping surface 32, third locking strip 33, gap j, second clamping block 34, longitudinal arm 34a, transverse arm 34b, limit block 35, clamping channel k, entrance and exit k1, top 40, first circumferential side 41, bottom 50, second circumferential side 51, sealing ring q, annular groove p, first ramp surface x1, second ramp surface x2, third ramp surface x3, fourth ramp surface x4, fifth ramp surface x5, sixth ramp surface x6, return spring s. Detailed implementation manners

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0060] like Figures 1 to 10 The electrical connector sealing system 200 provided in this embodiment is shown, which includes an electrical connector 201 and an electrical connector sealing box 100 , wherein the electrical connector 201 is accommodated in the electrical connector sealing box 100 .

[0061] like Figure 4 The electrical connector sealing box 100 provided in this embodiment is shown, comprising a bottom housing 101, a top cover 102, and two locking push rods 103 symmetrically positioned on either side of the electrical connector sealing box 100. In this embodiment, the electrical connector sealing box 100 is a rectangular parallelepiped, with the two locking push rods 103 symmetrically positioned on two opposing side walls corresponding to the long sides of the rectangular parallelepiped. The top cover 102 defines a wire inlet d for inserting wires.

[0062] A locking push rod 103 is movably mounted on the bottom housing 101 and can be switched between a first position and a second position. A locking structure is provided between the upper cover 102 and the locking push rod 103. When the locking push rod 103 is in the first position, the locking structure locks the upper cover 102 and the bottom housing 101 together, forming a sealed cavity m for accommodating the electrical connector 201. When the locking push rod 103 is in the second position, the upper cover 102 and the bottom housing 101 are unlocked and can be separated from each other.

[0063] like Figure 3 、 Figure 4 As shown, combined with Figures 8 to 10 The upper cover 102 includes two symmetrically disposed first sidewalls 10, and the bottom shell 101 includes two symmetrically disposed second sidewalls 20. The bottom shell 101 and the upper cover 102 mate to form a sealed cavity m for accommodating the electrical connector 201. The first sidewalls 10 and the second sidewalls 20 mate. The second sidewalls 20 define a push rod space n. The locking push rod 103 is disposed within the push rod space n and is movable back and forth within the push rod space n.

[0064] The electrical connector sealing box claimed by the present invention includes at least one locking push rod. Correspondingly, the upper cover includes at least one first side wall, and the bottom shell includes at least one second side wall, corresponding to the number of locking push rods. In other embodiments, there may also be only one locking push rod, or there may be multiple locking push rods. Correspondingly, there may also be only one or multiple first side walls and second side walls, which can all play the role of locking and unlocking the upper cover and the bottom shell. However, the implementation provided in this embodiment takes into account the reliability of the locking of the locking push rod, the sealing degree of the electrical connector sealing box, and the convenience of operating the locking push rod. The user can operate the locking push rods on one side with both hands respectively to complete the locking and unlocking actions.

[0065] In this embodiment, the locking structure includes a locking structure and a clamping structure provided between the first side wall 10 and the locking push rod 103, and a limiting structure is provided between the second side wall 20 and the locking push rod 103. Among them, the locking structure is used to maintain the upper cover and the bottom shell in the locked state and / or the unlocked state, the clamping structure is used to lock the upper cover and the bottom shell, and the limiting structure is used to limit the space of the locking push rod 103.

[0066] As Figures 3 to 7 shown, the locking structure includes: a first locking surface 11 and a second locking surface 12 are provided on the first side wall 10 along the moving direction of the locking push rod 103, and a third locking surface 31 opposite to the first locking surface 11 and the second locking surface 12 is provided on the locking push rod 103. The clamping structure includes: a first clamping surface 13 is provided on the first side wall 10, and a second clamping surface 32 opposite to the first clamping surface 13 is provided on the locking push rod 103. A return spring s is provided between the locking push rod 103 and the bottom shell 101.

[0067] Viewed statically, as Figure 9 shown, when the bottom shell 101 and the upper cover 102 are in the locked state, the first locking surface 11 abuts against the third locking surface 31, the first clamping surface 13 abuts against the second clamping surface 32, and the return spring s releases and resets. As Figure 10 shown, when the bottom shell 101 and the upper cover 102 are in the unlocked state, the second locking surface 12 abuts against the third locking surface 31, the first clamping surface 13 and the second clamping surface 32 are displaced and separated, and the return spring s is compressed.

[0068] Specifically, look at the locking structure in this embodiment. As Figures 3 to 5 、 Figure 7As shown in the figure, on the first side wall 10 of the upper cover 102, there are convexly provided a first locking bar 14 and a second locking bar 15 that are parallel to each other. The first locking surface 11 is located on the first locking bar 14, which is the surface of the first locking bar 14 facing the rear end. The second locking surface 12 is located on the second locking bar 15, which is the surface of the second locking bar 15 facing the rear end. On the locking push rod 103, there is provided a third locking bar 33. The third locking surface 31 is located on the third locking bar 33, which is the surface of the third locking bar 33 facing the front end.

[0069] The third locking bar 33 deforms and crosses over the second locking bar 15 to switch between the locked state and the unlocked state, that is, to switch between the first position and the second position. There is a gap j left between the third locking bar 33 and the second side wall 20 of the bottom case 101 for the third locking bar 33 to deform.

[0070] In this embodiment, the first locking bar 14 and the second locking bar 15 are convexly provided in the middle of the first side wall 10 longitudinally and in parallel. Correspondingly, the third locking bar 33 is convexly provided longitudinally at the middle position of the locking push rod 103 and is parallel to the first locking bar 14 and the second locking bar 15. The first locking surface 11 and the second locking surface 12 are respectively the surfaces of the first locking bar 14 and the second locking bar 15 facing the rear end, and the third locking surface 31 is the surface of the third locking bar 33 facing the front end. Thus, in the locked state, the first locking surface 11 abuts against the third locking surface 31. When unlocking, the locking push rod 103 moves backward, the third locking bar 33 undergoes a small amount of deformation and crosses over the second locking bar 15. Under the elastic force of the return spring s, the second locking surface 12 abuts against the third locking surface 31 to maintain the locking push rod 103 at the position in the unlocked state, that is, the second position.

[0071] In other embodiments, the three locking surfaces of the locking structure can also be implemented on other structures. For example, locking grooves are provided front and rear on the first side wall 10 of the upper cover 102, a locking block is convexly provided on the locking push rod 103, the first locking surface 11 and the second locking surface 12 are implemented in the locking grooves, and the third locking surface 31 is implemented on the locking block or the locking elastic piece, etc. Combining with other component structures such as the clamping structure and the limiting structure in this embodiment, the implementation mode of the locking structure provided in this embodiment has a better degree of cooperation with other component structures, high structural strength, relatively simple processing technology, and more reliable locking.

[0072] Preferably, as Figure 4 and Figure 5 shown, the first locking bar 14 has a first slope surface x1 facing the rear end, and its inclination direction is from the rear to the front and from low to high. The second locking bar 15 has a second slope surface x2 facing the front end, and its inclination direction is from the front to the rear and from low to high. The third locking bar 33 has a third slope surface x3 facing the rear end, and its inclination direction is from the rear to the front and from low to high. The slope surfaces mainly have the following three functions:

[0073] First, there is a certain interference amount between the locking surfaces, and the interference transition is carried out through the ramp surfaces.

[0074] Second, when the upper cover 102 and the bottom shell 101 are mated, the third ramp surface x3 is guided and pushed by the second ramp surface x2, so that the locking push rod 103 moves backward, and the return spring s is compressed; when the upper cover 102 and the bottom shell 101 are mated in place, the return spring s releases and resets to push the locking push rod 103 forward to the position in the locked state, that is, the first position.

[0075] Third, when unlocking, the locking push rod 103 moves backward, and the second ramp surface x2 of the second locking strip 15 guides the third ramp surface x3 of the third locking strip 33, so that the third locking strip 33 undergoes a small deformation to smoothly cross the second locking strip 15.

[0076] Specifically, look at the clamping structure in this embodiment. As Figures 3 to 5 、 Figure 7 shown, two first clamping blocks 16 are respectively convexly provided at both ends of the first side wall 10, and the first clamping surface 13 is the upper surface of the first clamping block 16. Two second clamping blocks 34 are respectively provided at both ends of the locking push rod 103. The second clamping block 34 includes a longitudinal arm 34a and a transverse arm 34b extending forward from the upper part of the longitudinal arm 34a, and the second clamping surface 32 is the lower surface of the transverse arm 34b. A clamping channel k is provided on the front side of the locking push rod 103 at the second clamping block 34, and the clamping channel k has an entrance and exit k1.

[0077] When the upper cover 102 and the bottom shell 101 are separated, the first clamping block 16 leaves the clamping channel k through the entrance and exit k1. When the upper cover 102 and the bottom shell 101 are mated, the first clamping block 16 enters the clamping channel k through the entrance and exit k1. When the locking push rod 103 moves back and forth relative to the first side wall 10, the first clamping block 16 can move back and forth in the clamping channel k.

[0078] In other embodiments, the clamping structure may also have only a combination of a set of first clamping surfaces 13 and second clamping surfaces 32. In this embodiment, a set is provided at each of the front and rear ends, which can improve the sealing tightness between the upper cover 102 and the bottom shell 101 in the locked state.

[0079] Preferably, as Figure 5 and Figure 7As shown, the lower side of the first clamping block 16, which faces the front end, is the fourth slope surface x4, which is inclined from front to back and from low to high. The lower side of the first clamping block 16, which faces the rear end, is the fifth slope surface x5, which is inclined from back to front and from low to high. The upper side of the transverse arm 34b of the second clamping block 34, which faces the front end, is the sixth slope surface x6, which is inclined from front to back and from low to high. The arrangement of these three slope surfaces creates a clearance space for the relative movement between the first clamping block 16 and the locking push rod 103.

[0080] Specifically, let’s look at the limiting structure in this embodiment. Figure 4 、 Figure 6 As shown, the upper end of the second side wall 20 is provided with a plurality of upper limit surfaces 21, and the lower end of the second side wall 20 is provided with a plurality of lower limit surfaces 22. A plurality of limit blocks 35 are longitudinally provided on the locking push rod 103. The upper surfaces of the limit blocks 35 abut against the upper limit surfaces 21, and the lower surfaces of the locking push rod 103 abut against the lower limit surfaces 22, thereby positioning the locking push rod 103 within the push rod space n.

[0081] In this embodiment, two upper limit blocks 23 are protruding from the upper end of the second side wall 20, and three lower limit blocks 24 are protruding from the lower end of the second side wall 20. The upper limit blocks 23 and the lower limit blocks 24 are staggered. The upper limit surface 21 is the lower surface of the upper limit block 23, and the lower limit surface 22 is the upper surface of the lower limit block 24. Space is left between each upper limit block 23 for the first locking surface 11, the second locking surface 12, and the first snap-fit surface 13 to pass through. That is, when the upper cover 102 and the bottom shell 101 are separated from each other, the staggered structure makes way for the locking structure and snap-fit structure on the first side wall 10. In other embodiments, the upper limit blocks 23 and the lower limit blocks 24 can also be implemented as one or more.

[0082] In addition, in this embodiment, there are two implementation methods for the limit block 35 on the locking push rod 103: first, the second clamping block 34 also serves as the limit block 35, and the upper surface of the second clamping block 34 abuts against the upper limit surface 21, playing the role of an upper limit; second, a limit block 35 is provided in front and behind the second clamping block 34, and the upper surface of the limit block 35 abuts against the upper limit surface 21, playing the role of an upper limit.

[0083] As can be seen, the locking push rod 103 provided in this embodiment is provided with a limit block 35, a second engaging block 34, a third locking strip 33, a limit block 35, and a second engaging block 34, in order from front to back. The limit structure, locking structure, and engaging structure are arranged alternately on the locking push rod 103. During the reciprocating movement of the locking push rod 103, these components dynamically cooperate with each other to achieve their functions in coordination.

[0084] like Figure 4 、Figure 6 、 Figure 9 and Figure 10 As shown, the front end of the second sidewall 20 of the bottom housing 101 is provided with a first chamber 25 through which the locking push rod 103 passes. The front end of the first chamber 25 has an operating opening c, through which the front end 103a of the locking push rod 103 extends. The inner top wall of the first chamber 25 serves as the upper limit surface 21, the inner sidewall 25b of the first chamber 25 serves as the inner limit surface, and the outer sidewall of the first chamber 25 serves as the outer limit surface. The inner and outer limit surfaces serve to limit the locking push rod 103 left and right within the push rod space n. When the stopper 35 at the front end of the locking push rod 103 enters the first chamber 25, its upper surface abuts the upper limit surface 21 formed by the inner top wall of the first chamber 25.

[0085] The rear end of the second sidewall 20 is provided with a second chamber 26 into which the rear end of the locking push rod 103 passes. A return spring s is a torsion spring disposed between the rear end of the locking push rod 103 and the rear sidewall of the second chamber 26. The inner top wall of the second chamber 26 serves as the upper limit surface 21, the inner sidewall 26b of the second chamber 26 serves as the inner limit surface, and the outer sidewall of the second chamber 26 serves as the outer limit surface. The inner and outer limit surfaces serve to limit the left and right positions of the locking push rod 103 within the push rod space n. When the second engaging block 34 at the rear end of the locking push rod 103 enters the second chamber 26, its upper surface abuts against the upper limit surface 21 formed by the inner top wall of the second chamber 26.

[0086] like Figures 1 to 5 As shown, the upper cover 102 includes a top 40 and a first peripheral side portion 41, with the first side wall 10 extending downward from the first peripheral side portion 41. The bottom shell 101 includes a bottom 50 and a second peripheral side portion 51, with the second side wall 20 located outside the second peripheral side portion 51. In this embodiment, the first side wall 10 extends downward from two opposite side walls of the rectangular parallelepiped, and the second side wall 20 is located on two opposite side walls of the rectangular parallelepiped.

[0087] A sealing ring q is positioned between the upper cover 102 and the bottom shell 101. An annular groove p is provided at the top of the second circumferential portion 51 to accommodate the sealing ring q. When the upper cover 102 and the bottom shell 101 are aligned, the sealing ring q is positioned between the bottom end of the first circumferential portion 41 and the top end of the second circumferential portion 51. The first sidewall 10 is positioned outside the second circumferential portion 51. The provision of the sealing ring q fills the gap between the upper cover 102 and the bottom shell 101, thereby enhancing the sealing of the electrical connector sealing box 100. The positioning of the first sidewall 10 outside the second circumferential portion 51 allows the sealing ring q to be enclosed within the shell, further enhancing the sealing effect while slowing down the aging of the sealing ring q.

[0088] refer to Figure 8 and Figure 9As shown, the assembly method of the electrical connector sealing box provided by the present invention, the assembly object of which is the electrical connector sealing box 100, is specifically described in detail below in conjunction with the electrical connector sealing system 200 provided in this embodiment, and includes the following steps:

[0089] Step 1: Place the return spring s into the push rod space n and position it in the reserved position between the locking push rod 103 and the bottom shell 101. Specifically in this embodiment, the torsion spring is placed in the second cavity 26 of the second side wall 20 of the bottom shell 101, with one end resting against the rear side wall of the second cavity 26.

[0090] Step 2: Insert the locking push rod 103 into the push rod space n, and the return spring s is set between the rear end of the locking push rod 103 and the bottom shell 101. Specifically in this embodiment, the locking push rod 103 passes through the first cavity 25, and the rear end enters the second cavity 26 and abuts against the front end of the torsion spring.

[0091] At this time, the electrical connector 201 can be placed into the upper cover 102 , and the wire inlet of the electrical connector 201 is aligned with the wire inlet d of the upper cover 102 .

[0092] Step 3: Align the upper cover 102 with the bottom case 101, and align the first sidewall 10 with the second sidewall 20. The third slope x3 is guided and pushed by the second slope x2, causing the locking push rod 103 to move backward, compressing the return spring s. Specifically in this embodiment, during this process, the first engaging block 16 passes through the space between the upper stop block 23 and the first and second chambers 25 and 26, and enters the engaging channel k through the entrance k1.

[0093] Step 4: When the upper cover 102 and the bottom case 101 are in full alignment, the return spring s is released to reset, pushing the locking push rod 103 forward. Specifically, in this embodiment, when the first engaging block 16 passes over the transverse arm 34b of the second engaging block 34 and fully enters the engaging channel k, the upper cover 102 and the bottom case 101 are in full alignment.

[0094] Step 5: The first locking surface 11 abuts against the third locking surface 31 , the first clamping surface 13 abuts against the second clamping surface 32 , and the bottom shell 101 and the upper cover 102 are in a locked state.

[0095] Thus, the electrical connector sealing system 200 provided in this embodiment is assembled, and the electrical connector 201 is accommodated in the sealed cavity m formed by the bottom shell 101 and the upper cover 102 .

[0096] Further, refer to Figure 10 As shown, the present invention also provides a method for disassembling an electrical connector sealing box, wherein the disassembly object is the electrical connector sealing box 100. The following is a detailed description of the electrical connector sealing system 200 provided in this embodiment. First, the connected wires are removed, and then the following steps are performed:

[0097] Step 1: Press the front end 103a of the locking push rod 103 to misalign and separate the first engaging surface 13 from the second engaging surface 32, and the return spring s is compressed. Specifically in this embodiment, during this process, under the guidance of the second ramp surface x2, the third ramp surface x3 causes a slight deformation of the third locking strip 33 until it crosses the second locking strip 15.

[0098] Step 2: Release the locking push rod 103, the second locking surface 12 abuts against the third locking surface 31, and the bottom shell 101 and the upper cover 102 are maintained in the unlocked state.

[0099] Step 3: Separate the upper cover 102 from the bottom shell 101. Specifically in this embodiment, during this process, the first engaging block 16 leaves the engaging channel k through the access opening k1 and passes through the space between the upper limit block 23 and the first chamber 25 and the second chamber 26. The first locking strip 14 and the second locking strip 15 pass through the space between the two upper limit blocks 23.

[0100] At this time, the electrical connector 201 can be taken out from the sealing cavity m. The locking push rod 103 does not need to be removed from the bottom shell 101 so as to repeat the operation when installing the electrical connector 201 next time. If necessary, the locking push rod 103 can be withdrawn from the first chamber 25 and the second chamber 26, and the return spring s can be taken out from the second chamber 26.

[0101] It can be seen that the electrical connector sealing box, the assembly method and the electrical connector sealing system provided by the present invention, by providing a first side wall on the upper cover and a second side wall on the bottom shell, the first side wall and the second side wall are aligned to form a push rod space, and a locking structure and a clamping structure are provided between the push rod space and the locking push rod, and the locking and unlocking between the upper cover and the bottom shell are realized by the reciprocating movement of the locking push rod in the push rod space, thus solving the problems of cumbersome disassembly and reassembly caused by screw fastening in the prior art, eliminating the safety hazard that screws are prone to cause short circuits, greatly simplifying the assembly and disassembly of the electrical connector sealing system, which can be completed manually without the aid of tools such as screwdrivers, and improving the sealing fastening force from the point-like force of the screw to the linear force of the locking push rod, with convenient operation, safety and reliability, and strong sealing performance.

[0102] It should be noted that: similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in the subsequent drawings.

[0103] The above describes the electrical connector sealing box, assembly method, and electrical connector sealing system provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the present invention and its core concepts. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims.

Claims

1. Electrical connector sealing box, characterized by: It includes a bottom shell, an upper cover and at least one locking push rod; The upper cover includes at least one first side wall, and the bottom shell includes at least one second side wall; the bottom shell and the upper cover are aligned to form a sealed cavity for accommodating the electrical connector, and the first side wall and the second side wall are aligned; the second side wall has a push rod space, and the locking push rod is disposed in the push rod space and can move back and forth in the push rod space; A first locking surface and a second locking surface are provided on the first side wall in a forward and backward direction of movement of the locking push rod, and a third locking surface is provided on the locking push rod opposite to the first locking surface and the second locking surface; a first clamping surface is provided on the first side wall, and a second clamping surface is provided on the locking push rod opposite to the first clamping surface; A return spring is provided between the locking push rod and the bottom shell; When the bottom shell and the upper cover are in a locked state, the first locking surface abuts against the third locking surface, the first clamping surface abuts against the second clamping surface, and the return spring is released to return to its original position; When the bottom shell and the upper cover are in an unlocked state, the second locking surface abuts against the third locking surface, the first clamping surface and the second clamping surface are dislocated and separated, and the return spring is compressed.

2. The electrical connector sealing box according to claim 1, wherein: A first locking strip and a second locking strip parallel to each other are protruded from the first side wall, the first locking surface is located on the first locking strip, and the second locking surface is located on the second locking strip; The locking push rod is provided with a third locking strip, and the third locking surface is located on the third locking strip; The third locking strip is deformed to pass over the second locking strip to switch between the locked state and the unlocked state; a gap is left between the third locking strip and the second side wall of the bottom shell for the third locking strip to deform.

3. The electrical connector sealing box according to claim 2, characterized in that: The second locking strip has a second sloped surface toward the front end, and the second sloped surface is inclined from front to back and from low to high; the third locking strip has a third sloped surface toward the rear end, and the third sloped surface is inclined from back to front and from low to high; When the upper cover and the bottom shell are aligned, the third slope surface is guided and pushed by the second slope surface to move the locking push rod backward and the return spring is compressed; when the upper cover and the bottom shell are aligned in place, the return spring is released and reset to push the locking push rod forward to the position of the locked state.

4. The electrical connector sealing box according to claim 1, wherein: A first clamping block is protruded from each of the two ends of the first side wall, and the first clamping surface is the upper surface of the first clamping block; A second clamping block is provided at each end of the locking push rod, the second clamping block includes a longitudinal arm and a transverse arm extending forward from the upper portion of the longitudinal arm, and the second clamping surface is the lower surface of the transverse arm; The locking push rod is provided with a clamping channel on the front side of the second clamping block, and the clamping channel has an entrance and an exit; When the upper cover is separated from the bottom shell, the first clamping block leaves the clamping channel through the entrance and exit; when the upper cover and the bottom shell are aligned, the first clamping block enters the clamping channel through the entrance and exit; the first clamping block can move back and forth in the clamping channel.

5. The electrical connector sealing box according to claim 1, wherein: A plurality of upper limiting surfaces are provided at the upper end of the second side wall, and a plurality of lower limiting surfaces are provided at the lower end of the second side wall; a plurality of limiting blocks are longitudinally provided on the locking push rod; The upper surface of the limiting block abuts against the upper limiting surface, and the lower surface of the locking push rod abuts against the lower limiting surface to vertically limit the locking push rod within the push rod space.

6. The electrical connector sealing box according to claim 5, wherein: A plurality of upper limiting blocks protrude from the upper end of the second side wall, and a plurality of lower limiting blocks protrude from the lower end of the second side wall; the upper limiting blocks and the lower limiting blocks are arranged in a staggered manner; The upper limiting surface is the lower surface of the upper limiting block, and the lower limiting surface is the upper surface of the lower limiting block; A space is left between each of the upper limiting blocks for the first locking surface, the second locking surface and the first clamping surface to pass through.

7. The electrical connector sealing box according to claim 1, wherein: A first chamber for the locking push rod to pass through is provided at the front end of the second side wall, the front end of the first chamber has an operation port, and the front end of the locking push rod extends out from the operation port; The inner top wall of the first chamber is the upper limiting surface, the inner side wall of the first chamber is the inner limiting surface, and the outer side wall of the first chamber is the outer limiting surface; the inner limiting surface and the outer limiting surface limit the locking push rod left and right within the push rod space.

8. The electrical connector sealing box according to claim 1, wherein: A second chamber for the rear end of the locking push rod to penetrate into is provided at the rear end of the second side wall; The return spring is a torsion spring, and is arranged between the rear end of the locking push rod and the rear side wall of the second chamber; The inner top wall of the second chamber is the upper limiting surface, the inner side wall of the second chamber is the inner limiting surface, and the outer side wall of the second chamber is the outer limiting surface; the inner limiting surface and the outer limiting surface limit the locking push rod left and right within the push rod space.

9. An assembly method of an electrical connector sealing box, the assembly object being an electrical connector sealing box, comprising a bottom shell, an upper cover and at least one locking push rod; The upper cover includes at least one first side wall, and the bottom shell includes at least one second side wall; the second side wall has a push rod space; A first locking strip and a second locking strip parallel to each other protrude forward and backward along the moving direction of the locking push rod on the first side wall; the first locking strip has a first locking surface facing the rear end, and the second locking strip has a second locking surface facing the rear end; a third locking strip is provided on the locking push rod, and the third locking strip has a third locking surface facing the front end; The second locking strip has a second ramp surface facing the front end, and the inclination direction of the second ramp surface is from front to back and from low to high; the third locking strip has a third ramp surface facing the rear end, and the inclination direction of the third ramp surface is from back to front and from low to high; A first clamping surface is provided on the first side wall, and a second clamping surface opposite to the first clamping surface is provided on the locking push rod; A return spring is provided between the locking push rod and the bottom case; characterized in that It includes the following steps: Step 1: Place the return spring into the push rod space and position it at the reserved position between the locking push rod and the bottom case; Step 2: Pass the locking push rod through the push rod space, and the return spring is arranged between the rear end of the locking push rod and the bottom case; Step 3: Align the upper cover with the bottom case, align the first side wall with the second side wall, and the third ramp surface is guided and pushed by the second ramp surface so that the locking push rod moves backward and the return spring is compressed; Step 4: When the upper cover and the bottom case are aligned in place, the return spring releases and resets to push the locking push rod forward; Step 5: The first locking surface abuts against the third locking surface, the first clamping surface abuts against the second clamping surface, and the bottom case and the upper cover are in a locked state.

10. Electrical connector sealing system, characterized in that, It includes an electrical connector and any one of the electrical connector sealing boxes as described in claims 1-8, and the electrical connector is accommodated in the sealing cavity formed by the alignment of the bottom case and the upper cover.

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