Structural member and electric connection structure device

Abstract

The utility model provides a structural member and an electric connection structure device, and belongs to the field of electric connectors. The electric connection structure device comprises a structural member, the structural member comprises a main body part and at least two shell parts integrally formed with the main body part, a through hole is formed in each shell part in a penetrating mode, each through hole comprises an insertion section and an assembly section which are sequentially arranged from front to back, an insulator is installed in each assembly section, and a contact piece is arranged in each insulator in a penetrating mode. The structural member is the structural member. According to the utility model, the shell parts and the main body part are directly and integrally formed, and the insulators are arranged in the through holes of the shell parts after the shell parts are formed, so that the deviation of relative positions of the shell parts is relatively small, the production process of the structural member is simplified, and the limitation on materials of the structural member is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of electrical connectors, and particularly relates to a structural member and an electrical connection structure device. Background Art

[0002] Connectors need to be installed on structural members such as the shells of electrical equipment or power supply equipment to facilitate the exchange of electrical energy or signals with other equipment. Moreover, to meet various usage requirements, usually more than two connectors need to be installed on such equipment. Connectors in the prior art are often independent components, and generally, the connectors are installed on the structural members of the equipment by means of adhesion or bolt connection. Holes need to be reserved on the structural members of the equipment for the installation of the connectors.

[0003] However, by connecting the connectors to the structural members of the equipment in the above manner, it is easy to cause assembly errors due to the assembly gaps between the connectors and the structural members, resulting in deviations in the relative positions of different connectors on the same structural member. In some usage environments, the relative positions of the respective mating connectors inserted into the connectors on the structural member are fixed. When the respective mating connectors are simultaneously inserted into the corresponding connectors, the deviation in the relative positions of the connectors on the structural member easily causes some connectors to be unable to accurately mate with the corresponding mating connectors.

[0004] The Chinese utility model patent with the authorized announcement number of CN206895068U and the authorized announcement date of January 16, 2018 discloses an integrated bottom cover structure, which can solve the above problems. The integrated bottom cover structure includes a bottom cover (i.e., the structural member) and a plurality of aviation sockets (i.e., the connectors). Before the bottom cover is molded, the aviation sockets are pre-placed in the mold, and the two materials are integrated after molding. Since the aviation sockets are embedded in the bottom cover while the bottom cover is being molded, the installation accuracy of the aviation sockets is improved, and the deviation in the relative positions of the respective aviation sockets is reduced.

[0005] The problems existing in the above integrated bottom cover structure are as follows: The housing of the aviation socket still needs to be independently manufactured, resulting in a relatively high processing cost; when processing the bottom cover, the aviation sockets need to be pre-placed in the mold of the bottom cover, and the production process is cumbersome; and in the above method, the aviation sockets are embedded in the bottom cover by casting. Due to the limitation of the casting temperature, it is only suitable for the production of plastic bottom covers and cannot be applied to metal structural members. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide an electrical connection structure device to solve the technical problems of high processing cost, cumbersome process and inapplicability to metal structures in the prior art for the integrated structural member and the connector.

[0007] The purpose of the present utility model is to provide a structural member to solve the technical problems of cumbersome process and inapplicability to metal structures in the prior art for the structural member.

[0008] In order to achieve the above-mentioned purpose, the technical solution of the electrical connection structure device provided by the utility model is:

[0009] An electrical connection structure device includes a structural member, the structural member includes a main body and at least two shell parts integrally formed with the main body and serving as socket shells, the shell part is penetrated by a through hole along the plugging direction, the through hole includes an insertion section and an assembly section arranged in sequence from front to back, an insulator is installed in the assembly section, and a contact piece is fixed in the insulator.

[0010] As a further improvement, the perforated rear port constitutes an installation port for loading the insulator, and the inner wall surface of the assembly section includes a positioning surface for positioning the insulator in the front-to-back direction when loading the insulator and preventing the insulator from slipping forward.

[0011] As a further improvement, the perforation also includes a glue potting section, which is located behind the assembly section. A glue potting body is provided in the glue potting section for limiting the insulator in the front-rear direction to prevent the insulator from escaping from the rear.

[0012] As a further improvement, the rear end of the contact piece is located in the potting body or the contact piece passes through the potting body.

[0013] As a further improvement, an accommodation space for accommodating the potting body to increase the contact area between the insulator and the assembly body and the potting body is provided between the insulator and the inner wall surface of the assembly section.

[0014] As a further improvement, the insulator includes a clearance fitting portion located at the rear end and clearance-fitted with the corresponding inner wall surface of the assembly section, and the gap between the clearance fitting portion and the corresponding inner wall surface of the assembly section constitutes an accommodating space.

[0015] As a further improvement, the insulator includes a base portion and a stop portion located on an outer peripheral wall of the base portion, and a front end surface of the stop portion is stop-matched with the positioning surface.

[0016] As a further improvement, a positioning protrusion is provided on the inner wall of the assembly section, and the rear end surface of the positioning protrusion constitutes a positioning surface.

[0017] As a further improvement, the insulator includes a base portion and a stop portion located on the outer peripheral wall of the base portion, the front end face of the stop portion is stop-fitted with the positioning surface, and the front end portion of the base portion is transitionally or interference-fitted with the inner wall of the positioning protrusion.

[0018] As a further improvement, the front end and / or the rear end of the shell portion protrudes from the main body portion.

[0019] The beneficial effect is that the electrical connection structure device provided by the utility model belongs to an invention of element change type. Compared with the prior art, the utility model directly forms the shell part and the main body part in one piece, and then installs the insulator into the perforation of the shell part after forming, which ensures that the deviation of the relative position of each shell part is small, thereby ensuring the precise insertion with the adapter connector; and the structural parts can be made at one time. After the structural parts are formed, the shell part and the main body part are both formed, and there is no need to make the shell part separately, so the manufacturing cost of the electrical connection structure device can be reduced, and the production process of the structural parts can also be simplified; the integral forming of the structural parts can also reduce the material restrictions on the structural parts, and the structural parts in this electrical connection structure device can be used regardless of metal or plastic.

[0020] In order to achieve the above-mentioned purpose, the technical solution of the structural member provided by the utility model is:

[0021] A structural member includes a main body and at least two shell parts integrally formed with the main body and serving as socket shells. The shell part is provided with through holes along the plugging direction. The through holes include an insertion section and an assembly section for assembling an insulator which are sequentially arranged from front to back.

[0022] As a further improvement, the perforated rear port constitutes an installation port for loading the insulator, and the inner wall surface of the assembly section includes a positioning surface for positioning the insulator in the front-to-back direction when loading the insulator and preventing the insulator from slipping forward.

[0023] As a further improvement, the perforation also includes a glue-filling section located behind the assembly section, and the glue-filling section is used to fill glue after the insulator is installed to form a glue-filled body behind the insulator.

[0024] As a further improvement, a positioning protrusion is provided on the inner wall of the assembly section, and the rear end surface of the positioning protrusion constitutes a positioning surface.

[0025] As a further improvement, the front end and / or the rear end of the shell portion protrudes from the main body portion.

[0026] The beneficial effect is that the structural part provided by the utility model belongs to the invention of element change type. Compared with the prior art, the shell part and the main body are directly integrally formed in the utility model, and the insulator is installed into the perforation of the shell part after forming, which ensures that the relative position deviation of each shell part is small, thereby ensuring the precise insertion with the adapter connector; and the structural part can be made at one time, and the shell part and the main body are both formed after the structural part is formed, which can simplify the production process of the structural part; the integral forming of the structural part can also reduce the material restrictions on the structural part, and the structural part in this electrical connection structure device can be used regardless of metal or plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of an embodiment of the electrical connection structure device in the present utility model;

[0028] Figure 2 Schematic diagram of the outer structure of an embodiment of the electrical connection structure device in the present utility model;

[0029] Figure 3 is Figure 2 Cross-sectional view taken along line M-M in;

[0030] Figure 4 is Figure 2 Cross-sectional view taken along line N-N in;

[0031] Figure 5 is Figure 3 Partial enlarged view at position A in;

[0032] Figure 6 is Figure 4 Partial enlarged view at position B in;

[0033] Figure 7 Partial cross-sectional view of the structural member in an embodiment of the electrical connection structure device in the present utility model.

[0034] Explanation of reference numerals:

[0035] 1, structural member; 11, main body part; 12, housing part; 2, perforation; 21, insertion section; 22, assembly section; 23, potting section; 24, positioning projection; 25, positioning surface; 3, insulator; 31, base body; 32, stop part; 33, mounting hole; 4, contact member; 41, assembly projection; 42, groove; 5, mating connector; 6, accommodation space; 7, circuit board. Detailed implementation manners

[0036] The following further describes the present utility model in detail with reference to the embodiments.

[0037] To solve the problems in the prior art, the basic concept of the present utility model is to directly integrally form the housing part and the main body part, and then install the insulator into the perforation of the housing part from the rear after forming, which ensures that the deviation of the relative positions of the housing parts is small, simplifies the production process of the structural member, and reduces the material limitation for the structural member.

[0038] Specific embodiments of the electrical connection structure device provided by the present utility model:

[0039] An electrical connection structure device, see attached Figure 1 and attached Figure 2, including a structural member 1, the structural member 1 includes a main body portion 11 and a housing portion 12 integrally formed on the main body portion 11 by machining. The housing portion 12 is provided with three connectors corresponding to two different models, and the internal structures of the connectors corresponding to the two housing portions 12 are similar.

[0040] In this embodiment, the structural member 1 is an end cover of a device. One side of the structural member 1 faces the outside of the device, and the other side faces the inside of the device. The direction facing the outside of the device is defined as the front, and the direction facing the inside of the device is defined as the rear.

[0041] See Appendix Figure 3 and Appendix Figure 4 , the housing portion 12 protrudes from the end cover on both the front side and the rear side of the end cover, so as to have sufficient space inside it. See Appendix Figure 7 , a through hole 2 is provided through the housing portion 12 in the front-rear direction. The through hole 2 includes an insertion section 21, an assembly section 22, and a potting section 23 arranged in sequence from front to back. An insulator 3 is installed in the assembly section 22, and a contact 4 is inserted through the insulator 3. The insertion section 21 is used to insert and fit with a connector 5. Therefore, the insertion direction of this electrical connection structure device and its mating connector 5 is parallel to the front-rear direction.

[0042] During assembly, the contact 4 needs to be first inserted and installed together with the insulating body. See Appendix Figure 5 and Appendix Figure 6 , an installation hole 33 for installing the contact 4 is provided in the insulator 3 in the front-rear direction. A ring-shaped assembly protrusion 41 is provided on the contact 4. The front end of the assembly protrusion 41 is a slope, so as to facilitate the insertion of the contact 4 from the rear to the front into the installation hole 33 of the insulator 3. After the contact 4 is inserted into the installation hole 33, the assembly protrusion 41 is in interference fit with the inner wall surface of the installation hole 33, thereby ensuring the stability of the contact 4.

[0043] See Appendix Figure 5 and Appendix Figure 6 , the rear port of the through hole 2 forms an installation port for installing the insulator 3. After the contact 4 and the insulator 3 are assembled together, the assembly composed of the insulator 3 and the contact 4 is inserted into the through hole 2 from the rear of the housing portion 12, that is, the inner side of the structural member 1, through the installation port. The inner wall surface of the assembly section 22 includes a positioning surface 25 for positioning the insulator 3 in the front-rear direction and preventing the insulator 3 from slipping out forward when the insulator 3 is installed. Specifically, a positioning protrusion 24 is provided on the inner wall of the assembly section 22. The positioning protrusion 24 is a rib extending in a circle, and the rear end surface of the positioning protrusion 24 constitutes the positioning surface 25.

[0044] The insulator 3 includes a base body portion 31 and a stop portion 32 located on the outer peripheral wall of the base body portion 31. The stop portion 32 is a rib that surrounds the base body portion 31 for one week, and the front end face of the stop portion 32 is in stop cooperation with the positioning surface 25. When assembling the insulator 3, after the front end face of the stop portion 32 fits on the positioning surface 25, the insulator 3 is assembled in place.

[0045] The front end portion of the base body portion 31 is in interference fit with the inner wall of the positioning projection 24. In other embodiments, it can also be in transition fit to position the base body portion 31 in the direction perpendicular to the front-rear direction by using the inner wall of the positioning projection 24 to ensure the assembly accuracy. The distance from the front end face of the stop portion 32 to the front end face of the base body portion 31 is less than the dimension of the positioning projection 24 in the front-rear direction to ensure that there is a sufficiently large space in the insertion section 21 to accommodate the mating connector 5. Of course, without affecting the insertion of the mating connector 5, the distance from the front end face of the stop portion 32 to the front end face of the base body portion 31 can also be equal to or greater than the dimension of the positioning projection 24 in the front-rear direction.

[0046] After the assembly composed of the insulator 3 and the contact member 4 is inserted into the insertion section 21 of the through hole 2, glue is poured into the through hole 2 from the rear port of the through hole 2. After the glue solidifies in the glue filling section 23 of the through hole 2, a glue filling body is formed. After the glue filling body is cured and fixed in the glue filling section 23 of the through hole 2, it will be adhesively fixed to the inner wall surface of the glue filling section 23, thereby limiting the insulator 3 at the rear of the insulator 3 to prevent the insulator 3 from coming out backward.

[0047] The stop portion 32 of the insulator 3 is in clearance fit with the assembly section 22 in the direction perpendicular to the front-rear direction. On the one hand, it can reduce the resistance of inserting the insulator 3. On the other hand, during the glue filling process, the glue can penetrate into the fitting clearance between the stop portion 32 and the assembly section 22, increasing the contact area between the insulator 3 and the glue filling body and the contact area between the inner wall surface of the through hole 2 and the glue filling body, effectively improving the fixing strength of the glue filling body to the insulator 3. In this embodiment, the stop portion 32 simultaneously constitutes a clearance fit portion, and the fitting clearance between the stop portion 32 and the assembly section 22 constitutes a receiving space 6 for receiving the glue filling body.

[0048] The rear end of the contact member 4 extends out of the through hole 2. During the glue filling process, a part of the contact member 4 is wrapped in the glue filling body, so that the contact member 4 is also fixed by the glue filling body. In order to enhance the fixing effect on the contact member 4 and prevent the contact member 4 from loosening from the glue filling body, a ring-shaped groove 42 is provided on the contact member 4. On the one hand, it can increase the contact area between the glue filling body and the contact member 4. On the other hand, the part of the glue filling body extending into the groove 42 can also limit the contact member 4 in the front-rear direction. In other embodiments, a ring-shaped rib can also be provided on the contact member 4, which can also play the same role.

[0049] In addition, after the potting colloid is cured, it can also play a role in strengthening the seal within the through-hole 2. The interference fit between the insulator 3 and the through-hole 2, and between the insulator 3 and the contact 4 provides a primary seal, while the potting colloid provides a secondary seal, effectively enhancing the sealing effect of the electrical connection structure device.

[0050] After the potting colloid is cured, a circuit board 7 is assembled at the rear end of the housing part 12, such that the rear end of the contact 4 passes through the hole position on the circuit board 7 and is soldered to the circuit board 7. Thus, the assembly of the connector corresponding to one of the housing parts 12 on the electrical connection structure device is completed. The connectors corresponding to the other housing parts 12 are assembled in the same manner.

[0051] For ease of manufacturing, the inner wall surface of the potting section 23 is flush with the inner wall of the rear end of the assembly section 22. To provide sufficient space in the insertion section 21 to accommodate the mating connector 5, the cross-sectional dimension of the insertion section 21 can be larger than that of the assembly section 22 and the potting section 23.

[0052] In addition, connection holes and guide holes can be provided on the housing part 12. Among them, the connection holes are threaded holes for mating with the connection bolts on the mating connector 5; the guide holes are through holes for mating with the guide pins on the mating connector 5.

[0053] In other embodiments, according to requirements, only the front end of the housing part can protrude from the main body part, or only the rear end of the housing part can protrude from the main body part. Or, when the thickness of the structural member is sufficient, neither the front end nor the rear end of the housing part needs to protrude from the main body part.

[0054] In other embodiments, the stopper portion may not be provided on the insulator. In this embodiment, the insulator is a columnar structure with equal front and rear dimensions. The front end face of the insulator is in abutting fit with the positioning surface. To ensure the positioning accuracy of the insulator in the direction perpendicular to the front and rear directions, in this embodiment, the insulator is in transitional or interference fit with the rear section of the assembly section, that is, the inner wall surface without the positioning protrusion. In this embodiment, a receiving groove extending in the front and rear directions is provided on the outer wall surface of the insulator for the glue to seep into the receiving groove, increasing the contact area between the insulator and the potting colloid, and between the inner wall surface of the through-hole and the potting colloid. Therefore, the space within the receiving groove in this embodiment constitutes the receiving space.

[0055] In other embodiments, the front end face of the insulator is in abutting fit with the positioning surface, and an end groove surrounding the insulator is provided at the edge of the rear end face of the insulator. The position where the end groove is provided constitutes the clearance fit portion of the insulator, and the position of the insulator without the end groove is in interference fit with the inner wall surface of the assembly section; after the insulator is assembled into the assembly section, the space between the end groove and the inner wall surface of the assembly section constitutes the receiving space.

[0056] In other embodiments, the stop portion and the assembly section may also be in a transitional or interference fit in a direction perpendicular to the front-rear direction, and no accommodation space is provided in this embodiment.

[0057] In other embodiments, the perforation is a stepped hole, and the cross-sectional dimension of the front part of the perforation is smaller and that of the rear part is larger. A stepped surface perpendicular to the front-rear direction is formed at the junction of the front and rear parts, and this stepped surface constitutes the positioning surface.

[0058] In other embodiments, the convex ridges or grooves provided on the contact member may also be dot-shapedly distributed on the contact member, which can also play a role in increasing the contact area between the contact member and the potting colloid and limiting the position in the front-rear direction.

[0059] In other embodiments, the rear end of the contact member may not be connected to the circuit board but to a wire. When the rear end of the contact member needs to be connected to a wire, the rear end of the contact member may extend out of the perforation, or after the rear end of the contact member is connected to the wire, they may be jointly wrapped by the potting colloid to use the potting colloid to seal and insulate the rear end of the contact member.

[0060] In other embodiments, the potting section may not be provided in the perforation. In this embodiment, an end cap or a retaining ring may be installed at the rear port of the perforation to fix the insulator.

[0061] In other embodiments, the number of the housing parts may also be two, four, five or six. The specific number can be selected according to requirements, and the specification dimensions of the housing parts can also be adjusted according to requirements.

[0062] In other embodiments, the front port of the perforation may also be used as an installation port for loading the insulator. In this embodiment, the positioning surface is used to position the insulator when the insulator is loaded into the perforation from front to back and prevent the insulator from slipping out backward.

[0063] Specific embodiments of the structural member provided by the present utility model:

[0064] This structural member is the structural member in the specific embodiment of the above-mentioned electrical connection structure device, and will not be elaborated here.

[0065] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative labor, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electrical connection structure device, characterized in that The invention comprises a structural member (1), wherein the structural member (1) comprises a main body (11) and at least two shell parts (12) integrally formed with the main body (11) and serving as socket shells, wherein the shell part (12) is provided with a through hole (2) penetrating along the plugging direction, the through hole (2) comprises an inserting section (21) and an assembly section (22) arranged in sequence from front to back, an insulator (3) is installed in the assembly section (22), and a contact member (4) is fixed in the insulator (3).

2. The electrical connection structure device according to claim 1, characterized in that The rear end of the through hole (2) forms an installation opening for inserting the insulator (3), and the inner wall surface of the assembly section (22) includes a positioning surface (25) for positioning the insulator (3) in the front-to-back direction when the insulator (3) is inserted and preventing the insulator (3) from slipping out forward.

3. The electrical connection structure device according to claim 2, characterized in that The perforation (2) further comprises a glue-filling section (23), which is located behind the assembly section (22). A glue-filling body is provided in the glue-filling section (23) for limiting the position of the insulator (3) in the front-rear direction to prevent the insulator (3) from falling out from the rear.

4. The electrical connection structure device according to claim 3, characterized in that, The rear end of the contact piece (4) is located in the potting body or the contact piece (4) penetrates the potting body.

5. The electrical connection structure device according to any one of claims 1-4, characterized in that, An accommodating space (6) is provided between the insulating body (3) and the inner wall surface of the assembly section (22) for accommodating the potting body to increase the contact area between the insulating body (3) and the assembly body and the potting body.

6. The electrical connection structure device according to claim 5, wherein, The insulator (3) comprises a clearance fitting portion located at the rear end and clearance-fitted with a corresponding inner wall surface of the assembly section (22); the clearance between the clearance fitting portion and the corresponding inner wall surface of the assembly section (22) forms an accommodating space (6).

7. The electrical connection structure device according to any one of claims 1-4, characterized in that, The insulator (3) comprises a base (31) portion and a stop portion (32) located on an outer peripheral wall of the base (31) portion, and a front end surface of the stop portion (32) is stop-matched with a positioning surface (25).

8. The electrical connection structure device according to any one of claims 1-4, characterized in that A positioning protrusion (24) is provided on the inner wall of the assembly section (22), and a rear end surface of the positioning protrusion (24) forms a positioning surface (25).

9. The electrical connection structure device according to claim 8, wherein, The insulator (3) comprises a base (31) and a stopper (32) located on an outer peripheral wall of the base (31); a front end surface of the stopper (32) is stop-fitted with a positioning surface (25); and a front end portion of the base (31) is transitionally or interference-fitted with an inner wall of a positioning protrusion (24).

10. The electrical connection structure device according to any one of claims 1-4, characterized in that, The front end and / or the rear end of the shell portion (12) both protrude from the main body portion (11).

11. A structural member, characterized in that, The invention comprises a main body (11) and at least two housing parts (12) integrally formed with the main body (11) and serving as socket housings. The housing part (12) is provided with a through hole (2) penetrating along the plugging direction. The through hole (2) comprises an insertion section (21) and an assembly section (22) for assembling an insulator (3) arranged in sequence from front to back.

12. The structural member according to claim 11, characterized in that, The rear end of the through hole (2) forms an installation opening for inserting the insulator (3), and the inner wall surface of the assembly section (22) includes a positioning surface (25) for positioning the insulator (3) in the front-to-back direction when the insulator (3) is inserted and preventing the insulator (3) from slipping out forward.

13. The structural member according to claim 12, characterized in that, The perforation (2) further comprises a glue-filling section (23) located behind the assembly section (22). The glue-filling section (23) is used to fill glue liquid after the insulator (3) is installed to form a glue-filled body behind the insulator (3).

14. The structural member according to claim 12, characterized in that, On the inner wall of the assembly section (22), there is a positioning projection (24), and the rear end face of the positioning projection (24) forms a positioning surface (25).

15. The structural member according to claim 11, characterized in that, Both the front end and / or the rear end of the housing section (12) protrude from the main body section (11).

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