Retrofitting structure and automobile

Abstract

The utility model relates to the technical field of automobile assembly, in particular to a mounting structure and an automobile, which are used for mounting a heat insulation plate on the surface of equipment, and the equipment is provided with a positioning hole extending along a first direction. The adding structure comprises a connecting main body and a connecting inner threaded hole which extend in the first direction, and the connecting inner threaded hole extends from one end of the connecting main body to the interior of the connecting main body. The connecting main body can be arranged in the positioning hole in an interference manner, a friction part is arranged on the outer side wall of the connecting main body, and the connecting main body is in contact with the inner wall of the positioning hole through the friction part so as to prevent the connecting main body from rotating relative to the equipment. According to the mounting structure and the automobile provided by the invention, the reutilization of the existing positioning hole in the equipment is realized, the procedure of reprocessing the surface of the equipment is effectively saved, and the influence of reprocessing of the mounting hole on the equipment is avoided while the assembly efficiency of the heat insulation plate is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile assembly, and in particular to an installation structure and an automobile. Background Art

[0002] In today's automobile assembly field, in order to improve driving comfort and protect important parts in the automobile, the surface of important parts in the automobile (such as motors) is usually covered with heat insulation boards.

[0003] However, when adding a heat insulation board to a car, it is necessary to process mounting holes for installing the heat insulation board on the surface of the important component. On the one hand, processing the mounting holes is time-consuming and labor-intensive, which affects the efficiency of installing the heat insulation board; on the other hand, processing the mounting holes can easily affect the shell strength of the important component and even cause damage to the important component. Utility Model Content

[0004] The purpose of the present application is to provide a retrofit structure and a car, so as to solve the technical problems existing in the prior art to a certain extent that the processing of the installation holes is time-consuming and labor-intensive, affecting the efficiency of installing the heat insulation board; the processing of the installation holes is very likely to affect the shell strength of the important components, and even cause damage to the important components.

[0005] According to a first aspect of the present application, there is provided a mounting structure for mounting a heat insulation board on a surface of a device, wherein the device is provided with a positioning hole extending along a first direction;

[0006] The mounting structure comprises a connecting body and a connecting internal threaded hole both extending along the first direction, wherein the connecting internal threaded hole extends from one end of the connecting body toward the inside of the connecting body;

[0007] The connecting body can be arranged in the positioning hole with interference fit, and the outer wall of the connecting body is provided with a friction part, and the connecting body contacts the inner wall of the positioning hole via the friction part to prevent the connecting body from rotating relative to the device.

[0008] Preferably, the connecting body comprises a limiting portion and an extending portion fixedly connected along the first direction, the connecting body is arranged in the positioning hole via the extending portion, and the friction portion is arranged on the outer side of the extending portion;

[0009] At least a portion of a projection of the limiting portion along the first direction on a plane perpendicular to the first direction exceeds the positioning hole.

[0010] Preferably, a dimension of the limiting portion in the first direction is greater than or equal to 1.5 mm.

[0011] Preferably, the friction portion extends from one end of the insertion portion close to the limiting portion to the other end;

[0012] A dimension of the friction portion in the first direction is greater than or equal to 11 mm.

[0013] Preferably, the friction part is a flower tooth arranged around the connecting body;

[0014] The tooth pitch of the flower teeth is 1 mm to 2 mm or the tooth pitch of the flower teeth is 1.5 mm.

[0015] Preferably, the inner diameter of the positioning hole is D, and the outer diameter of the extending portion is Dr, wherein D<Dr≤(D+0.3) mm;

[0016] And / or, the connecting body further comprises a guide portion extending along the first direction, the guide portion is fixedly arranged on a side of the extending portion facing away from the limiting portion, and an outer diameter of the guide portion is smaller than a diameter of the positioning hole.

[0017] Preferably, the mounting structure further includes a mounting assembly, and the mounting assembly further includes:

[0018] A guide rod portion extending along the first direction, at least a portion of the guide rod portion being insertable into the connecting internal threaded hole, and a flange being disposed on the outer side of the guide rod portion, and when at least a portion of the guide rod portion is inserted into the connecting internal threaded hole, the flange abuts against an end portion of the connecting body;

[0019] The pressing portion can act on an end of the guide rod portion away from the connecting body to apply pressure to the connecting body along the first direction toward the device.

[0020] Preferably, the guide rod portion comprises:

[0021] An insertion rod extending along the first direction, the insertion rod and the connecting internal threaded hole are clearance-matched, and the flange is arranged at one end of the insertion rod;

[0022] A force-applying rod, fixedly disposed at an end of the flange facing away from the insertion rod;

[0023] A pressure pad is arranged at an end of the force applying rod away from the flange, and a cross-sectional area of ​​the pressure pad is larger than a cross-sectional area of ​​the force applying rod.

[0024] Preferably, it further comprises an external thread fixing part, which can be threadedly connected to the connecting internal thread hole to fix the heat insulation board to the mounting structure.

[0025] According to the second aspect of the present application, there is provided an automobile, comprising the above-mentioned heat insulation board, the equipment and the additional structure described in any of the above-mentioned technical solutions, and thus having all the beneficial technical effects of the additional structure, which will not be described in detail herein.

[0026] Compared with the prior art, the beneficial effects of this application are:

[0027] The mounting structure provided in the present application effectively prevents the connection body from rotating relative to the equipment by setting the connection body in an interference fit in the positioning hole and setting the friction part on the outer side wall of the connection body. In this way, the insulation board can be screwed onto the mounting structure via the external threaded fixing part, so that the insulation board can be fixed at the positioning hole by connecting the internal threaded hole. This not only enables the reuse of the existing positioning holes on the equipment, but also effectively saves the process of reprocessing the surface of the equipment, improves the assembly efficiency of the insulation board, and avoids the impact of the reprocessing of the installation hole on the equipment.

[0028] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the assembly structure of the additional structure provided in the embodiment of the present application;

[0031] Figure 2 for Figure 1 An enlarged structural diagram of the provided additional structure at position A;

[0032] Figure 3 A schematic diagram of a partial cross-sectional structure of an additional structure provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of the side structure of the mounting structure provided in an embodiment of the present application;

[0034] Figure 5 A schematic diagram of the installation process of the additional structure provided in an embodiment of the present application.

[0035] Reference numerals:

[0036] 1-connecting body; 11-insertion part; 12-friction part; 13-limiting part; 14-guiding part; 15-connecting chamfer; 16-connecting internal thread hole;

[0037] 2-equipment; 21-positioning hole;

[0038] 3- Heat insulation board;

[0039] 4-External thread fixings;

[0040] 5-guide rod portion; 51-insertion rod; 52-flange; 53-force application rod; 54-pressure pad;

[0041] 6- Press-in portion.

[0042] F1 - First direction. DETAILED DESCRIPTION

[0043] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0044] The components of the embodiments of the present application generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0045] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0046] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] Refer to the following Figures 1 to 5 The invention describes a retrofitted structure and a car according to some embodiments of the present application.

[0049] See also Figures 1 to 5As shown, the embodiment of the first aspect of the present application provides a mounting structure for mounting a heat insulation board 3 on the surface of a device 2, and the device 2 is provided with a positioning hole 21 extending along a first direction F1. The mounting structure includes a connection body 1 and a connection internal thread hole 16, both extending along the first direction F1, and the connection internal thread hole 16 extends from one end of the connection body 1 to the inside of the connection body 1. The connection body 1 can be arranged in the positioning hole 21 with interference fit, and the outer side wall of the connection body 1 is provided with a friction part 12, and the connection body 1 contacts the inner wall of the positioning hole 21 via the friction part 12 to prevent the connection body 1 from rotating relative to the device 2.

[0050] According to the mounting structure provided by the above-mentioned technical features, the connection body 1 is interference-fittedly arranged in the positioning hole 21, and the friction portion 12 is arranged on the outer wall of the connection body 1 to effectively prevent the connection body 1 from rotating relative to the device 2. In this way, the insulation board 3 can be screwed onto the mounting structure via the external threaded fixing member 4, so as to fix the insulation board 3 at the positioning hole 21 by connecting the internal threaded hole 16, thereby not only realizing the reuse of the existing positioning hole 21 on the device 2, but also effectively saving the process of reprocessing the surface of the device 2, thereby improving the assembly efficiency of the insulation board 3 while avoiding the influence of the reprocessing of the mounting hole on the device 2.

[0051] like Figure 3 and Figure 5 As shown, F1 shown in the figure may be an example of the first direction F1. Preferably, the first direction F1 may be the axial direction of the positioning hole 21.

[0052] Alternatively, if Figure 3 As shown, the connecting internal thread hole 16 may penetrate the connecting body 1 along the first direction F1.

[0053] Preferably, although not shown in the figures, the aforementioned mounting structure may further include an external threaded fixing member 4, which can be threadedly connected to the internal threaded hole 16 to fix the heat insulation board to the mounting structure, thereby achieving installation and fixation of the heat insulation board.

[0054] Optionally, the external thread fixing member may be a bolt (eg, an M6 bolt), a screw (eg, an M6 screw) or other external thread connection structures.

[0055] Optionally, not shown in the figures, the connecting internal threaded hole 16 may also be a blind hole.

[0056] In an embodiment, preferably, Figure 3 and Figure 4As shown, the connection body 1 may include a limiting portion 13 and an insertion portion 11 fixedly connected along the first direction F1, the connection body 1 is arranged in the positioning hole 21 via the insertion portion 11, and the friction portion 12 is arranged outside the insertion portion 11. At least part of the projection of the limiting portion 13 along the first direction F1 on a plane perpendicular to the first direction F1 exceeds the positioning hole 21, so that, on the one hand, the limiting portion 13 can effectively limit the depth of the connection body 1 entering the positioning hole 21; on the other hand, the following installation component can act on the connection body 1 via the limiting portion 13 to perform the action of pressing into the positioning hole 21, thereby increasing the contact area between the connection body 1 and the installation component, so as to reduce the pressure on the connection body 1, so as to reduce the probability of the connection body 1 being damaged during the process of pressing the connection body 1 into the positioning hole 21.

[0057] Alternatively, if Figure 4 As shown, the above-mentioned limiting portion 13 can be disc-shaped and evenly distributed along the circumference of the extending portion 11 to improve the uniformity of the force applied to the limiting portion 13 in the circumferential direction of the extending portion 11.

[0058] Preferably, a dimension of the limiting portion 13 in the first direction F1 is greater than or equal to 1.5 mm to ensure the pressure-bearing strength of the limiting portion 13 .

[0059] Preferably, if Figure 3 As shown, the friction portion 12 extends from one end of the extending portion 11 close to the limiting portion 13 to the other end, so that the friction portion 12 fits with the housing of the device 2 .

[0060] Preferably, the dimension of the friction portion 12 in the first direction F1 is greater than or equal to 11 mm, so as to ensure the effectiveness of the friction portion 12 in preventing the connection body 1 from rotating relative to the device 2 .

[0061] Preferentially, if Figure 2 and Figure 3 As shown, the friction portion 12 is a flower tooth that is arranged around the connecting body 1.

[0062] Preferably, the pitch of the flower teeth can be 1mm to 2mm, for example, the pitch of the flower teeth can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm. This not only ensures the friction torque of the friction part 12, but also can effectively reduce the machining amount of the connection body 1.

[0063] The inner diameter of the positioning hole 21 is defined as D, and the outer diameter of the insertion portion 11 is defined as Dr. Preferably, D<Dr≤(D+0.3) mm, which not only ensures the interference of the insertion portion 11, but also ensures that the insertion portion 11 can be smoothly installed in the positioning hole 21.

[0064] In an embodiment, Figure 3 and Figure 4 As shown, the connecting body 1 may further include a guide portion 14 extending along the first direction F1, the guide portion 14 being fixedly arranged on the side of the insertion portion 11 facing away from the limiting portion 13, and the outer diameter of the guide portion 14 being smaller than the aperture of the positioning hole 21, so as to facilitate the connecting body 1 to be introduced into the positioning hole 21 via the guide portion 14.

[0065] Preferably, if Figure 3 As shown, the guide portion 14 and the insertion portion 11 may be connected via a connecting chamfer 15 , so as to facilitate guiding the insertion portion 11 to enter the positioning hole 21 .

[0066] Preferably, the guide portion 14 , the extending portion 11 , the friction portion 12 and the limiting portion 13 may be integrally formed.

[0067] In an embodiment, the mounting structure may further include a mounting assembly. Figure 5 As shown, the installation assembly can also include a guide rod portion 5 and a press-in portion 6, at least a portion of the guide rod portion 5 can be inserted into the interior of the connecting internal threaded hole 16 of the above-mentioned connecting body 1, and the press-in portion 6 can act on the guide rod portion 5 to press the connecting body 1 into the positioning hole 21 of the above-mentioned device 2 to achieve the installation of the connecting body 1.

[0068] Preferably, if Figure 5 As shown, the guide rod portion 5 can extend along the first direction F1, at least a portion of the guide rod portion 5 can be inserted into the connecting internal threaded hole 16, and a flange 52 is provided on the outer side of the guide rod portion 5. When at least a portion of the guide rod portion 5 is inserted into the connecting internal threaded hole 16, the flange 52 abuts against the end of the connecting body 1. In this way, on the one hand, by at least a portion of the guide rod portion 5 being inserted into the connecting internal threaded hole 16, the probability of the connecting internal threaded hole 16 being crushed is effectively reduced during the process of the pressing portion 6 being pressed into the positioning hole 21 of the device 2; on the other hand, by fixing the flange 52 on the outer side of the guide rod portion 5, it is convenient for the guide rod portion 5 to act on the connecting body 1.

[0069] Preferably, if Figure 5 As shown, the guide rod portion 5 may include an insertion rod 51 which may extend along a first direction F1. The insertion rod 51 and the connecting internal thread hole 16 are clearance-matched to facilitate the insertion of the insertion rod 51 into the connecting internal thread. The flange 52 is disposed at one end of the insertion rod 51.

[0070] Preferably, if Figure 5 As shown, the guide rod portion 5 may include a force rod 53 , which may be fixedly disposed at an end of the flange 52 facing away from the insertion rod 51 , so that the press-in portion 6 can act on the force rod 53 .

[0071] Furthermore, if Figure 5 As shown, the guide rod portion 5 may include a pressure pad 54 , which may also be disposed at an end of the force rod 53 away from the flange 52 . The cross-sectional area of ​​the pressure pad 54 is larger than the cross-sectional area of ​​the force rod 53 , so that the pressing portion 6 can act on the guide rod portion 5 .

[0072] Preferably, if Figure 5 As shown, the pressing portion 6 can act on the end of the guide rod 5 away from the connection body 1 to apply pressure to the connection body 1 along the first direction F1 toward the device 2. Optionally, the pressing portion 6 can be a leather hammer, an electric hammer, etc.

[0073] See also Figure 1 and Figure 2 The embodiment of the second aspect of the present application also provides an automobile, including the above-mentioned heat insulation board 3, the device 2 and the additional structure described in any of the above-mentioned embodiments, and thus, has all the beneficial technical effects of the additional structure, which will not be repeated here.

[0074] Preferably, the device 2 may be a motor, but is not limited thereto, and the device 2 may also be other devices requiring heat insulation 2. Specifically, the device 2 may include a housing, and a positioning hole 21 may be provided on the housing.

[0075] Preferably, if Figure 5 As shown, the positioning hole 21 may be a blind hole.

[0076] Optionally, the housing of the device 2 may be an aluminum alloy.

[0077] Optionally, the heat insulation board 3 may be an aluminum board.

[0078] Optionally, the thickness of the heat insulation board 3 may be 2 mm to 5 mm.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mounting structure for mounting a heat insulation board on the surface of a device, characterized in that: The device is provided with a positioning hole extending along a first direction; The mounting structure comprises a connecting body and a connecting internal threaded hole both extending along the first direction, wherein the connecting internal threaded hole extends from one end of the connecting body toward the inside of the connecting body; The connecting body can be arranged in the positioning hole with interference fit, and the outer wall of the connecting body is provided with a friction part, and the connecting body contacts the inner wall of the positioning hole via the friction part to prevent the connecting body from rotating relative to the device.

2. The mounting structure according to claim 1, characterized in that: The connecting body comprises a limiting portion and an extending portion fixedly connected along the first direction, the connecting body is arranged in the positioning hole via the extending portion, and the friction portion is arranged on the outer side of the extending portion; At least a portion of a projection of the limiting portion along the first direction on a plane perpendicular to the first direction exceeds the positioning hole.

3. The mounting structure according to claim 2, characterized in that: A dimension of the limiting portion in the first direction is greater than or equal to 1.5 mm.

4. The mounting structure according to claim 2, characterized in that: The friction portion extends from one end of the insertion portion close to the limiting portion to the other end; A dimension of the friction portion in the first direction is greater than or equal to 11 mm.

5. The mounting structure according to claim 1, characterized in that: The friction part is a flower tooth which is arranged around the connecting body; The tooth pitch of the flower teeth is 1 mm to 2 mm or the tooth pitch of the flower teeth is 1.5 mm.

6. The mounting structure according to claim 2, characterized in that: The inner diameter of the positioning hole is D, and the outer diameter of the extending portion is Dr, wherein D<Dr≤(D+0.3)mm; And / or, the connecting body further comprises a guide portion extending along the first direction, the guide portion is fixedly arranged on a side of the extending portion facing away from the limiting portion, and an outer diameter of the guide portion is smaller than a diameter of the positioning hole.

7. The mounting structure according to any one of claims 1 to 6, characterized in that: The mounting structure further includes a mounting assembly, and the mounting assembly further includes: A guide rod portion extending along the first direction, at least a portion of the guide rod portion being insertable into the connecting internal threaded hole, and a flange being disposed on the outer side of the guide rod portion, and when at least a portion of the guide rod portion is inserted into the connecting internal threaded hole, the flange abuts against an end portion of the connecting body; The pressing portion can act on an end of the guide rod portion away from the connecting body to apply pressure to the connecting body along the first direction toward the device.

8. The mounting structure according to claim 7, characterized in that: The guide rod portion comprises: An insertion rod extending along the first direction, the insertion rod and the connecting internal threaded hole are clearance-matched, and the flange is arranged at one end of the insertion rod; A force-applying rod, fixedly disposed at an end of the flange facing away from the insertion rod; A pressure pad is arranged at an end of the force applying rod away from the flange, and a cross-sectional area of ​​the pressure pad is larger than a cross-sectional area of ​​the force applying rod.

9. The mounting structure according to claim 1, characterized in that: It also includes an external thread fixing piece, which can be threadedly connected to the connecting internal thread hole to fix the heat insulation board to the mounting structure.

10. An automobile, characterized in that: It comprises the heat insulation board, the equipment and the additional structure according to any one of claims 1 to 9.

Images