Connector

Abstract

The utility model provides a connector. The connector comprises a shell assembly, the shell assembly is provided with a containing cavity, and the two ends of the shell assembly are provided with a connecting opening and a mounting opening which are communicated with the containing cavity respectively; at least one part of the PI N needle assembly is detachably arranged in the accommodating cavity; at least one part of the terminal fixing assembly covers the mounting opening; and one end of the wire harness assembly extends into the terminal fixing assembly and is connected with the PI N needle assembly through the terminal fixing assembly. According to the utility model, the problem of poor use performance of a connector in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery testing equipment field, specifically, relate to a connector. BACKGROUND

[0002] At present, the connector used in the Pack whole package test harness is integrated injection molding of pin needle and plastic shell, the pin needle cannot be replaced, once the pin needle is damaged, the whole connector or the whole test harness cannot be used, the use rate is reduced, and the cost is increased. And when testing the battery pack, the connector of the test harness is plugged into the battery pack, since the contact mode of the pin needle of the connector and the metal terminal of the plug-in end is surface contact, the pin needle of the connector of the new battery pack is easily worn during the multiple plugging and unplugging process. When the battery pack is formally loaded, since the pin needle of the battery pack connector is worn and cannot be well assembled with the connector of the whole vehicle end, signal transmission is abnormal.

[0003] Therefore, there is a problem of poor use performance of the connector in the prior art. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of connector, to solve the problem of poor use performance of the connector in prior art.

[0005] In order to achieve the above purpose, according to one aspect of the utility model, a kind of connector is provided, comprising: shell assembly, shell assembly has accommodating cavity, and the both ends of shell assembly are respectively provided with connecting opening and installation opening communicated with accommodating cavity;PIN needle assembly, at least a part of PIN needle assembly is detachably arranged in accommodating cavity;Terminal fixed assembly, at least a part of terminal fixed assembly is covered in installation opening;Harness assembly, one end of harness assembly extends into terminal fixed assembly, and is connected with PIN needle assembly by terminal fixed assembly.

[0006] Further, the shell assembly comprises: a shell body having an accommodating cavity, a connecting opening and an installation opening;A buckle portion is arranged on the outer surface of the shell body and is movably connected with the shell body, and the end of the buckle portion close to the connecting opening has a clamping protrusion.

[0007] Further, the buckle portion comprises: a buckle body, the buckle body is spaced apart from the shell body, and the both ends of the buckle body are respectively arranged corresponding to the connecting opening and the installation opening, and the end of the buckle body close to the connecting opening has a clamping protrusion;At least two connecting arms, the two connecting arms are correspondingly arranged on the both sides of the length direction of the buckle body, and one end of the connecting arm is connected with the buckle body, and the other end of the connecting arm is movably connected with the shell body.

[0008] Further, the shell body is provided with different connecting shafts corresponding to different connecting arms, the connecting arms are sleeved on the connecting shafts and can rotate relative to the connecting shafts.

[0009] Further, the shell assembly further comprises a reset member, two ends of the reset member abut against the shell body and the buckle body respectively.

[0010] Further, the shell body and the buckle body are provided with mounting grooves corresponding to the reset member respectively.

[0011] Further, the side of the shell body facing the buckle body has at least two limit protrusions arranged at intervals, and at least a part of the buckle body is arranged between the two limit protrusions.

[0012] Further, the connecting arm comprises a first connecting segment and a second connecting segment connected in sequence and arranged at an angle, one end of the first connecting segment away from the second connecting segment is connected with the buckle body, and one end of the second connecting segment away from the first connecting segment is movably connected with the shell body.

[0013] Further, the clamping protrusion extends along the thickness direction of the buckle body and towards the connecting opening.

[0014] Further, the cross-sectional area of the accommodating cavity near the mounting opening is greater than the cross-sectional area of the accommodating cavity near the connecting opening, and the circumferential inner side wall of the accommodating cavity has at least one step surface, and the PIN pin assembly is correspondingly provided with at least one step structure abutting against the step surface.

[0015] Further, the PIN pin assembly comprises: a PIN pin fixing shell, the PIN pin fixing shell is detachably connected with the shell assembly, at least a part of the PIN pin fixing shell is arranged in the accommodating cavity, and at least another part of the PIN pin fixing shell extends out of the connecting opening; at least one spring PIN pin, the PIN pin fixing shell is provided with at least one PIN pin hole corresponding to the spring PIN pin, the PIN pin hole comprises a small-diameter segment and a large-diameter segment connected in sequence, at least the part of the PIN pin fixing shell away from one end of the large-diameter segment of the small-diameter segment extends out of the connecting opening, and one end of the spring PIN pin extends into the PIN pin hole from one end of the small-diameter segment away from the large-diameter segment.

[0016] Further, the outer surface of the PIN pin fixing shell has at least one anti-fooling groove, and the extension direction of the anti-fooling groove is parallel to the axial direction of the PIN pin hole.

[0017] Further, the terminal fixing assembly abuts against the PIN pin fixing shell, the terminal fixing assembly is provided with different mounting cavities corresponding to different terminals of the wire harness assembly, different mounting cavities correspond to different PIN pin holes respectively, and the side of the terminal fixing assembly close to the PIN pin fixing shell is provided with a window communicating with the mounting cavities corresponding to the PIN pin holes.

[0018] Further, the connector further comprises a fixed cover plate, the fixed cover plate is arranged on the side of the terminal fixing assembly away from the PIN pin assembly and detachably connected with the side of the shell assembly having the mounting opening, and the fixed cover plate is provided with an avoiding through hole for the wire harness assembly to pass through.

[0019] Further, the connector further comprises a wire harness fastening plate, the wire harness fastening plate is arranged on the side of the fixed cover plate away from the shell assembly, the wire harness fastening plate comprises an upper end plate and a lower end plate which are spliced with each other, the lower end plate is detachably connected with the fixed cover plate and the upper end plate respectively, and the side of the upper end plate and the lower end plate spliced with each other is spliced with each other to form a plurality of wire pressing holes, and different wire bodies of the wire harness assembly pass through different wire pressing holes respectively.

[0020] The technical scheme of the utility model is applied, the connector in the application comprises a shell assembly, a PIN pin assembly, a terminal fixing assembly and a wire harness assembly. The shell assembly has a containing cavity, and the two ends of the shell assembly are respectively provided with a connecting opening and a mounting opening which are communicated with the containing cavity; at least a part of the PIN pin assembly is detachably arranged in the containing cavity; at least a part of the terminal fixing assembly is arranged on the mounting opening; one end of the wire harness assembly extends into the terminal fixing assembly and is connected with the PIN pin assembly through the terminal fixing assembly.

[0021] When the connector in the application is used, since at least a part of the PIN pin assembly is detachably arranged in the containing cavity, and the wire harness assembly is connected with the PIN pin assembly through the terminal fixing assembly, when the PIN pin assembly is damaged or needs to be replaced, the PIN pin assembly only needs to be taken out from the containing cavity and replaced with a new PIN pin assembly, and the whole connector does not need to be replaced, so that the test cost of the battery pack can be effectively reduced. Therefore, the connector in the application effectively solves the problem of poor use performance of the connector in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings accompanying the specification of the application form a part of the application and serve to provide further understanding of the application, the illustrative embodiments of the application and the explanations thereof serve to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0023] Figure 1 Part of the structure schematic diagram of the connector according to one specific embodiment of the utility model is shown;

[0024] Figure 2 The explosion diagram of the connector of one specific embodiment of the application is shown;

[0025] Figure 3 The structure schematic diagram of the shell body of the connector in Figure 2 is shown;

[0026] Figure 4 a structure diagram of a buckle part of a connector in Figure 2 a structure diagram of a buckle part of a connector in

[0027] Figure 5 a structure diagram of a buckle part of a connector in Figure 2 a structure diagram of a buckle part of a connector in

[0028] Figure 6 a structure diagram of a buckle part of a connector in Figure 2 a structure diagram of a buckle part of a connector in

[0029] Wherein, the above drawings include the following reference signs:

[0030] 10, housing assembly; 11, accommodating cavity; 111, step surface; 12, connecting opening; 13, mounting opening; 14, housing body; 141, connecting shaft; 142, limiting protrusion; 15, buckle part; 151, clamping protrusion; 152, buckle body; 153, connecting arm; 1531, first connecting section; 1532, second connecting section; 16, reset member; 161, mounting groove; 20, PIN pin assembly; 21, step structure; 22, PIN pin fixing shell; 221, PIN pin hole; 2211, small diameter section; 2212, large diameter section; 222, fool-proof groove; 23, spring PIN pin; 30, terminal fixing assembly; 31, mounting cavity; 32, window; 40, wire harness assembly; 50, fixing cover plate; 51, avoiding through hole; 60, wire harness fastening plate; 61, upper end plate; 62, lower end plate; 63, wire pressing hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0033] The relative arrangement of parts and steps, numerical expressions, and values set forth in these embodiments do not limit the scope of the present application unless otherwise specified. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The technology, methods and devices known to those skilled in the related art can not be discussed in detail, but in appropriate cases, the technology, methods and devices should be considered as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] In order to solve the problem of poor performance of the connector in the prior art, the present application provides a connector.

[0035] As shown in Figures 1 to 6 The connector in the present application includes a shell assembly 10, a PIN needle assembly 20, a terminal fixing assembly 30 and a wire harness assembly 40. The shell assembly 10 has a receiving cavity 11, and the two ends of the shell assembly 10 are respectively provided with a connecting opening 12 and a mounting opening 13 which communicate with the receiving cavity 11; at least a part of the PIN needle assembly 20 is detachably arranged in the receiving cavity 11; at least a part of the terminal fixing assembly 30 covers the mounting opening 13; one end of the wire harness assembly 40 extends into the terminal fixing assembly 30 and is connected with the PIN needle assembly 20 through the terminal fixing assembly 30.

[0036] When using the connector in the present application, since at least a part of the PIN needle assembly 20 is detachably arranged in the receiving cavity 11, and the wire harness assembly 40 is connected with the PIN needle assembly 20 through the terminal fixing assembly 30, when the PIN needle assembly 20 is damaged or needs to be replaced, only the PIN needle assembly 20 needs to be taken out of the receiving cavity 11 and replaced with a new PIN needle assembly 20, without the need to replace the entire connector, thereby effectively reducing the test cost of the battery pack. Therefore, the connector in the present application effectively solves the problem of poor performance of the connector in the prior art.

[0037] In one specific embodiment of the present application, the shell assembly 10 comprises a shell body 14 and a buckle portion 15, the shell body 14 has a receiving cavity 11, a connecting opening 12 and a mounting opening 13; the buckle portion 15 is arranged on the outer surface of the shell body 14 and movably connected with the shell body 14, and the buckle portion 15 has a clamping protrusion 151 at one end close to the connecting opening 12. In this embodiment, after the connector is connected with the corresponding socket of the battery pack through the connecting opening 12, the connector can be clamped with the corresponding position of the battery pack through the clamping protrusion 151, so as to realize the self-locking of the connector and the interface of the battery pack, thereby ensuring the stability of the connection between the connector and the battery pack and preventing the connector from falling off. Optionally, a groove matched with the clamping protrusion 151 can be arranged at the position of the battery pack corresponding to the clamping protrusion 151 to realize the locking between the connector and the battery pack.

[0038] Specifically, the buckle portion 15 comprises a buckle body 152 and at least two connecting arms 153. The buckle body 152 is arranged spaced apart from the shell body 14, both ends of the buckle body 152 are arranged corresponding to the connecting opening 12 and the mounting opening 13 respectively, and the buckle body 152 has the clamping protrusion 151 at one end close to the connecting opening 12. The two connecting arms 153 are arranged corresponding to both sides of the length direction of the buckle body 152, one end of the connecting arm 153 is connected with the buckle body 152, and the other end of the connecting arm 153 is movably connected with the shell body 14. By arranging the buckle body 152 spaced apart from the shell body 14, the relative movement between the buckle body 152 and the shell body 14 can be effectively ensured, so as to realize the relative movement between the buckle body 152 and the shell, and further ensure that the clamping protrusion 151 on the buckle body 152 can be more smoothly locked or unlocked with the corresponding position of the socket of the battery pack. That is, in the present application, the buckle body 152 can be operated by the operator to realize the locking or unlocking of the buckle portion 15 and the corresponding position of the socket of the battery pack. By arranging the connecting arm 153, the connection between the buckle portion 15 and the shell body 14 can be ensured and the buckle portion 15 and the shell body 14 can be prevented from being disconnected.

[0039] Further specifically, the clamping protrusion 151 extends along the thickness direction of the buckle body 152 and towards the connecting opening 12. By arranging in this way, the clamping protrusion 151 can be more easily locked or unlocked with the corresponding position of the socket of the battery pack. In the present application, the extension direction of the clamping protrusion 151 can be perpendicular to the extension direction of the buckle body 152. Preferably, the buckle body 152 is arranged corresponding to the top surface of the shell body 14, and the clamping protrusion 151 extends towards the bottom surface of the shell body 14. Of course, in the present application, the positional relationship between the buckle body 152 and the shell body 14 can be adjusted adaptively according to the actual use.

[0040] Further specifically, the connecting arm 153 comprises a first connecting segment 1531 and a second connecting segment 1532 connected in sequence and arranged at an angle, the first connecting segment 1531 is connected with the buckle body 152 at an end away from the second connecting segment 1532, and the second connecting segment 1532 is movably connected with the shell body 14 at an end away from the first connecting segment 1531. That is to say, in the present application, the two connecting arms 153 are composed of the two first connecting segments 1531 and the buckle body 152 into a cross shape, and the two second connecting segments 1532 can extend towards the same side of the shell body 14 as the clamping protrusion 151, or the extending direction of the second connecting segment 1532 is the same as that of the clamping protrusion 151. Therefore, in the present application, the connecting arm 153 can support the buckle body 152 through the second connecting segment 1532 to prevent the buckle body 152 from contacting the shell body 14.

[0041] Specifically, the shell body 14 is provided with different connecting shafts 141 corresponding to different connecting arms 153, and the connecting arm 153 is sleeved on the connecting shaft 141 and can rotate relative to the connecting shaft 141. By such arrangement, it can be ensured that the connecting arm 153 can drive the buckle body 152 to rotate relative to the shell body 14 while being connected to the shell body 14 through the second connecting segment 1532, so as to ensure that the buckle body 152 can realize locking and unlocking between the corresponding position of the battery pack socket through the clamping protrusion 151.

[0042] Further specifically, the shell assembly 10 further comprises a reset member 16, and the two ends of the reset member 16 are respectively in abutment with the shell body 14 and the buckle body 152. In the present application, the reset member 16 can be a spring. By arranging the spring, an acting force can be provided to the buckle body 152, so as to keep the clamping protrusion 151 on the buckle body 152 in a locked state with the battery pack socket. When it is needed to unlock the clamping protrusion 151 from the battery pack socket, the operator can press the end of the buckle body 152 away from the clamping protrusion 151, so as to make the clamping protrusion 151 rise in a direction away from the battery pack socket, thereby realizing the unlocking of the clamping protrusion 151 from the battery pack socket, and at this time the connector can be removed from the battery pack socket. Therefore, in the present application, a structure similar to a lever can be formed by the buckle body 152, the connecting arm 153, the connecting shaft 141 of the shell body 14 and the spring, so as to realize the locking and unlocking between the connector and the battery pack socket in the present application. Therefore, when the connector in the present application is operated, the operator needs to press the buckle body 152. Of course, in the present application, a limit pin or other structure can be arranged to replace the reset member 16, so as to limit the buckle body 152, thereby ensuring that the connector and the battery pack socket can be switched between the locked and unlocked states.

[0043] Optionally, the spring specifications are: spring wire diameter d = 0.6 mm, spring outer diameter D = 5.6 mm, spring inner diameter D1 = 4.4 mm, free length H0 = 14.2 mm, and total number of turns n1 = 7. Of course, in the present application, other specifications of springs can also be selected according to different actual design requirements.

[0044] Further preferably, the housing body 14 and the buckle body 152 are respectively provided with mounting grooves 161 corresponding to the reset member 16. That is, in the present application, the two ends of the spring can be respectively accommodated in the mounting grooves 161 of the housing body 14 and the mounting grooves 161 of the buckle body 152, thereby effectively ensuring the stability of the connection between the spring and the housing body 14 and the buckle body 152, preventing the spring from falling off, and ensuring the use performance of the connector. Of course, in the present application, the two ends of the spring and the housing body 14 and the buckle body 152 can also be fixed by means of point gluing and the like.

[0045] Optionally, the housing body 14 has at least two spaced-apart limiting protrusions 142 on the side facing the buckle body 152, and at least a portion of the buckle body 152 is arranged between the two limiting protrusions 142. By such an arrangement, when the buckle body 152 is pressed, the two limiting protrusions 142 can limit the buckle body 152, thereby ensuring that the movement direction of the buckle body 152 will not be skewed, and further ensuring that the buckle body 152 can move along the preset direction and accurately engage with the corresponding position of the socket of the battery pack. Therefore, by such an arrangement, the use performance of the connector can be effectively ensured.

[0046] Optionally, the cross-sectional area of the accommodation cavity 11 near the mounting opening 13 is greater than the cross-sectional area of the accommodation cavity 11 near the connecting opening 12, and the circumferential inner side wall of the accommodation cavity 11 has at least one stepped surface 111, and the PIN pin assembly 20 is correspondingly provided with at least one stepped structure 21 abutting against the stepped surface 111. In the present application, bolt holes can be provided on the stepped structure 21 of the PIN pin assembly 20 and the stepped surface 111 in the accommodation cavity 11, so that the PIN pin assembly 20 can be detachably connected inside the accommodation cavity 11 by bolts. In the present application, the cooperation of the stepped surface 111 and the stepped structure 21 can also ensure that the PIN pin assembly 20 is installed in place and has a limiting effect on the PIN pin assembly 20. At the same time, by providing multiple stepped surfaces 111 in the accommodation cavity 11, it can also be ensured that the accommodation cavity 11 can be adapted to PIN pin assemblies 20 of different models or different sizes, thereby improving the compatibility of the accommodation cavity 11. In one specific embodiment of the present application, the accommodation cavity 11 is formed by three rectangular cavities of different sizes, and the three rectangular cavities are sequentially connected from large to small, so that the stepped surface 111 can be formed between the adjacent two rectangular cavities. In addition, the circumferential inner side wall of the rectangular cavity has a circular chamfer. Specifically, the external size specifications of the shell body 14 are 45mm×39mm×39mm, and the interior is a four-chamfered rectangular stepped cavity structure, that is, three rectangular cavity structures. The large chamfered rectangular cavity has a size specification of 50.16mm×9.1mm×45.5mm, and the chamfer R is 3.08mm. The medium chamfered rectangular cavity has a size specification of 38mm×10.4mm×10mm, and the chamfer R is 3.08mm. The small chamfered rectangular cavity has a size specification of 36.6mm×8.6mm×8mm, and the chamfer R is 3.08m.

[0047] Specifically, the PIN pin assembly 20 includes a PIN pin fixing shell 22 and at least one spring PIN pin 23, the PIN pin fixing shell 22 is detachably connected with the shell assembly 10, at least a part of the PIN pin fixing shell 22 is arranged in the accommodation cavity 11, and at least another part of the PIN pin fixing shell 22 protrudes out of the connecting opening 12; the PIN pin fixing shell 22 is correspondingly provided with at least one PIN pin hole 221 for the spring PIN pin 23, the PIN pin hole 221 includes a small diameter section 2211 and a large diameter section 2212 connected in sequence, at least the part of the PIN pin fixing shell 22 corresponding to the end of the large diameter section 2212 away from the small diameter section 2211 protrudes out of the connecting opening 12, and one end of the spring PIN pin 23 protrudes into the PIN pin hole 221 from the end of the small diameter section 2211 away from the large diameter section 2212. In the present application, when connected with the socket of the battery pack, the spring PIN pin 23 is pushed against the top end of the PIN pin of the battery pack under the pushing force of its own spring, forming good contact and not causing wear to the PIN pin of the battery pack.

[0048] In one embodiment of the present application, the PIN needle fixing shell 22 can be a PIN needle fixing glue shell with a size of 50mm x 8.45mm x 31mm, and two stepped bolt holes on the two sides, with a large bolt hole diameter of and a small bolt hole diameter of for detachable connection with the stepped surface 111 of the accommodating cavity 11. The fixing glue shell has eight stepped through holes for fixing the spring PIN needle 23, with a large PIN hole diameter, i.e. a large diameter section 2212 diameter of and a small PIN hole diameter, i.e. a small diameter section 2211 diameter of

[0049] Preferably, the outer surface of the PIN needle fixing shell 22 has at least one anti-fumble groove 222, and the extension direction of the anti-fumble groove 222 is parallel to the axial direction of the PIN needle hole 221. In the present application, by setting the anti-fumble groove 222, it can be ensured that when the connector is connected with the socket of the battery pack, it can only be assembled in a predetermined direction, thereby ensuring the use performance of the connector and preventing the connector from being connected with the socket of the battery pack incorrectly.

[0050] Optionally, the terminal fixing assembly 30 abuts against the PIN needle fixing shell 22, and the terminal fixing assembly 30 is provided with different mounting cavities 31 corresponding to different terminals of the wire harness assembly 40, different mounting cavities 31 correspond to different PIN needle holes 221 respectively, and the terminal fixing assembly 30 is provided with window openings 32 in communication with the mounting cavities 31 on the side close to the PIN needle fixing shell 22 corresponding to the PIN needle holes 221. In one embodiment of the present application, the terminal fixing assembly is a terminal fixing glue shell with a size of 31mm x 16mm x 7.5mm, and eight rectangular cavities, i.e. mounting cavities 31, inside, with a size of 4.9mm x 3mm x 14.6mm, for mounting and fixing the terminals of the wire harness assembly 40, and eight square window openings 32 on the bottom surface of the eight rectangular cavities, with a size of 1.8mm x 1.8mm.

[0051] Optionally, the connector further comprises a fixing cover plate 50, which is arranged on the side of the terminal fixing assembly 30 away from the PIN needle assembly 20 and detachably connected with the side of the shell assembly 10 having the mounting opening 13, thereby achieving limiting of the terminal fixing assembly 30, and the fixing cover plate 50 is provided with a relief through hole 51 for the wire harness assembly 40 to pass through.

[0052] Optionally, the connector further comprises a wire harness fastening plate 60, which is arranged on the side of the fixed cover plate 50 away from the shell assembly 10, and comprises an upper end plate 61 and a lower end plate 62 which are spliced with each other, the lower end plate 62 is detachably connected with the fixed cover plate 50 and the upper end plate 61 respectively, and the side of the upper end plate 61 and the lower end plate 62 which are spliced with each other is spliced with each other to form a plurality of wire pressing holes 63, and different wire bodies of the wire harness assembly 40 pass through different wire pressing holes 63 respectively.

[0053] In one specific embodiment of the present application, the fixed cover plate 50 can be a glue shell fixing plate with a size of 65mm*25mm*11.2mm, and four stepped bolt holes are arranged at four corners of the glue shell fixing plate, the diameter of the large bolt hole is 4mm, and the diameter of the small bolt hole is 2mm. The diameter of the small bolt hole is 2mm. The fixed cover plate 50 is used for locking with the shell body 14, three M2.5 threaded holes are arranged at the middle position of the fixed cover plate 50, the fixed cover plate 50 is used for connecting with the wire harness fastening plate 60, and the length of the avoiding through hole 51 is 32.5mm and the width is 2.5mm, so as to ensure that the wire harness assembly 40 can arrange the wire harness without winding, that is, the wire body of the wire harness assembly 40 is arranged.

[0054] Meanwhile, the diameter of the wire pressing hole 63 formed by the upper end plate 61 and the lower end plate 62 of the wire harness fastening plate 60 is 2mm. The wire pressing hole 63 has an interference amount of 0.1mm with the wire body of the wire harness assembly 40, the upper end plate 61 has two M2.5 threaded holes, the lower end plate 62 has two stepped bolt holes, the upper end plate 61 and the lower end plate 62 are locked by bolts to tightly fix the wire harness, and when the wire harness assembly 40 is subjected to external tension, the terminal of the wire body of the wire harness assembly 40 in the accommodating cavity 11 is prevented from being stressed, the diameter of the large stepped bolt hole is 4mm. The diameter of the small stepped bolt hole is 2mm. The diameter of the large stepped bolt hole is 4mm. The diameter of the small stepped bolt hole is 2mm. Corresponding to the three M2.5 threaded holes at the middle position of the fixed cover plate 50, the wire harness fastening plate 60 is fastened with the fixed cover plate 50 by bolts.

[0055] In the description of the utility model, it is understood that the orientation words such as “front, back, up, down, left, right”, “transverse, vertical, perpendicular, horizontal” and “top, bottom” and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as the limitation of the protection scope of the utility model, the orientation words “inner, outer” refer to the inner and outer of the contour of each component itself.

[0056] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0057] In addition, it should be noted that the use of "first", "second", and the like words of resemblance to define parts, only for the convenience of the corresponding parts, as no other declaration, the above words have no special meaning, therefore can not be understood as the limitation of the scope of protection of the utility model.

[0058] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A connector characterized by comprising: The application relates to a shell assembly (10) which comprises a containing cavity (11), and a connecting opening (12) and a mounting opening (13) arranged at two ends of the shell assembly (10) respectively and communicating with the containing cavity (11); a PIN pin assembly (20) which is arranged detachably in the containing cavity (11); a terminal fixing assembly (30) which covers at least a part of the mounting opening (13); and a wire harness assembly (40) which extends into the terminal fixing assembly (30) and is connected with the PIN pin assembly (20) through the terminal fixing assembly (30). The shell assembly (10) comprises a shell body (14) which has the containing cavity (11), the connecting opening (12) and the mounting opening (13); and a buckle part (15) which is arranged on the outer surface of the shell body (14) and is movably connected with the shell body (14), and has a clamping protrusion (151) at one end close to the connecting opening (12). The buckle part (15) comprises a buckle body (152) which is arranged spaced apart from the shell body (14), and has the clamping protrusion (151) at one end close to the connecting opening (12); and at least two connecting arms (153) which are arranged correspondingly on the two sides of the length direction of the buckle body (152), and one end of each connecting arm (153) is connected with the buckle body (152), and the other end of each connecting arm (153) is movably connected with the shell body (14). The shell body (14) is provided with different connecting shafts (141) corresponding to different connecting arms (153), and the connecting arms (153) are sleeved on the connecting shafts (141) and can rotate relative to the connecting shafts (141). The shell assembly (10) further comprises a reset member (16) which is in abutment with the shell body (14) and the buckle body (152) at two ends respectively.

2. The connector of claim 1, wherein The shell body (14) and the buckle body (152) are provided with mounting grooves (161) corresponding to the reset member (16) respectively. The shell body (14) is provided with at least two spaced-apart limiting protrusions (142) on one side facing the buckle body (152), and at least a part of the buckle body (152) is arranged between the two limiting protrusions (142). ​ 3. The connector of claim 2, wherein ​ ​ ​ 4. The connector of claim 3, wherein ​ 5. The connector of claim 3, wherein ​ 6. The connector of claim 5, wherein, ​ 7. The connector of claim 3, wherein ​ 8. The connector of claim 3, wherein The connecting arm (153) comprises a first connecting section (1531) and a second connecting section (1532) connected in sequence and arranged at an angle, one end of the first connecting section (1531) away from the second connecting section (1532) is connected with the buckle body (152), and one end of the second connecting section (1532) away from the first connecting section (1531) is movably connected with the shell body (14).

9. The connector of claim 3, wherein The clamping protrusion (151) extends along the thickness direction of the buckle body (152) and towards the connecting opening (12).

10. The connector of any one of claims 1 to 9, wherein, The cross-sectional area of the accommodation cavity (11) on the side close to the mounting opening (13) is greater than the cross-sectional area of the accommodation cavity (11) on the side close to the connecting opening (12), and the circumferential inner side wall of the accommodation cavity (11) has at least one stepped surface (111), and the PIN pin assembly (20) is correspondingly provided with at least one stepped structure (21) abutting against the stepped surface (111).

11. The connector of any one of claims 1 to 9, wherein, The The PIN pin assembly (20) comprises: A PIN pin fixing shell (22) which is detachably connected with the shell assembly (10), at least a part of the PIN pin fixing shell (22) is arranged in the accommodation cavity (11), and at least another part of the PIN pin fixing shell (22) protrudes out of the connecting opening (12); At least one spring PIN pin (23), the PIN pin fixing shell (22) is correspondingly provided with at least one PIN pin hole (221) for the spring PIN pin (23), the PIN pin hole (221) comprises a small-diameter section (2211) and a large-diameter section (2212) connected in sequence, at least a part of the PIN pin fixing shell (22) corresponding to the large-diameter section (2212) away from the small-diameter section (2211) protrudes out of the connecting opening (12), and one end of the spring PIN pin (23) protrudes into the PIN pin hole (221) from the end of the small-diameter section (2211) away from the large-diameter section (2212).

12. The connector of claim 11, wherein, The outer surface of the PIN pin fixing shell (22) has at least one fool-proof groove (222), and the extension direction of the fool-proof groove (222) is parallel to the axial direction of the PIN pin hole (221).

13. The connector of claim 11, wherein, The terminal fixing assembly (30) abuts against the PIN pin fixing shell (22), the terminal fixing assembly (30) is correspondingly provided with different mounting cavities (31) for different terminals of the wire harness assembly (40), different mounting cavities (31) correspond to different PIN pin holes (221) respectively, and the terminal fixing assembly (30) is correspondingly provided with a window (32) communicating with the mounting cavity (31) on the side close to the PIN pin hole (221).

14. The connector of any one of claims 1 to 9, wherein, The connector further comprises a fixed cover plate (50) which is arranged on the side of the terminal fixing assembly (30) away from the PIN pin assembly (20) and detachably connected with the side of the shell assembly (10) having the mounting opening (13), and the fixed cover plate (50) is provided with a avoiding through hole (51) for the wire harness assembly (40) to pass through.

15. The connector of claim 14, wherein, The connector further comprises a wire harness fastening plate (60) which is arranged on the side of the fixed cover plate (50) away from the shell assembly (10), the wire harness fastening plate (60) comprises an upper end plate (61) and a lower end plate (62) which are spliced with each other, the lower end plate (62) is detachably connected with the fixed cover plate (50) and the upper end plate (61) respectively, and the side of the upper end plate (61) and the lower end plate (62) spliced with each other is spliced with each other to form a plurality of wire pressing holes (63), and different wire bodies of the wire harness assembly (40) pass through different wire pressing holes (63) respectively.

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