Control unit

Abstract

The utility model provides a control unit which can prevent a damping sheet from falling off from a cover body. The control unit includes: a housing; the cover body covers the shell, and the lower side of the cover body is provided with a fastening part; the fastener is fastened to the fastening part; a damping sheet attached to the cover body and having a hole through which the fastening portion passes; the fixing piece is attached to the fastening part and provided with a flange part, and the outer diameter of the flange part is larger than the hole diameter of the hole.

Description

Technical Field

[0001] The utility model relates to a control unit, in particular to a control unit comprising a vibration damping sheet. Background Art

[0002] In recent years, efforts to provide access to sustainable transportation systems that also take into account vulnerable people such as the elderly or children among traffic participants are becoming active. In order to achieve the above-mentioned purpose, efforts are being made to further improve traffic through development related to vehicle safety. However, in the research and development related to vehicle safety, the vibration damping sheet of the power control unit of the vehicle's engine is easy to fall off the cover body, and the conduction between the fallen vibration damping sheet and the high-voltage electrical components of the power control unit may cause a short circuit, which raises safety concerns. Therefore, it is necessary to improve the power control unit to overcome the above-mentioned problem. Utility Model Content

[0003] The utility model provides a control unit which can prevent a vibration-damping sheet from falling off a cover body.

[0004] The utility model provides a control unit, comprising: a shell; a cover body, covering the shell, the lower side of the cover body having a fastening portion; a fastener, fastened to the fastening portion; a vibration damping plate, attached to the cover body and having a hole, the fastening portion passing through the hole; and a fixing piece, attached to the fastening portion and having a flange portion, the outer diameter of the flange portion being larger than the aperture of the hole.

[0005] In an embodiment of the present invention, the control unit further comprises an electrical component, the electrical component is disposed in the housing, and the electrical component does not exist below the location where the fastening portion and the fixing member are disposed.

[0006] In an embodiment of the present invention, the fastening portion and the fixing member are located in a peripheral area of ​​the vibration damping plate.

[0007] The utility model provides a control unit, comprising: a shell; a cover body, covering the shell; a retaining member, attached to the cover body and having a convex portion; a fixing member, fastened to the convex portion; and a vibration-damping plate, attached to the cover body and having a hole, the convex portion passing through the hole, the fixing member having a flange portion, and the outer diameter of the flange portion is greater than the aperture of the hole.

[0008] Based on the above, in the control unit of the utility model, the vibration damping sheet has a hole for the fastening part of the cover to pass through, and a fixing member with a large outer diameter is arranged below the vibration damping sheet. Accordingly, even if the vibration damping sheet falls off from the cover, the vibration damping sheet will be stopped by the fixing member and will not fall down. Thus, the control unit of the utility model can prevent the vibration damping sheet from falling from the cover, so as to avoid a short circuit caused by the conduction between the falling vibration damping sheet and the high-voltage electrical components of the control unit, thereby improving the safety of the control unit.

[0009] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of a control unit according to an embodiment of the utility model.

[0011] Figure 2 yes Figure 1 A three-dimensional diagram of some components of a control unit.

[0012] Figure 3 yes Figure 2 A cross-sectional view of some components of the control unit along line II.

[0013] Figure 4A yes Figure 1 A schematic cross-sectional view of the control unit along line II-II.

[0014] Figure 4B Show Figure 4A The vibration damping plate is separated from the cover body.

[0015] Figure 5 yes Figure 1 A cross-sectional view of the control unit along line III-III.

[0016] Figure 6 It is a cross-sectional schematic diagram of some components of a control unit according to another embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 100: control unit;

[0019] 110: housing;

[0020] 120120': cover;

[0021] 122: fastening portion;

[0022] 122a: screw hole;

[0023] 130, 130': fasteners;

[0024] 140, 140': vibration damping plate;

[0025] 140a, 140a': hole;

[0026] 150, 150': fixings;

[0027] 152, 152': flange portion;

[0028] 160: electrical components;

[0029] 170: retaining member;

[0030] 172: convex part;

[0031] 180: nut;

[0032] d1: outer diameter;

[0033] d2: aperture. DETAILED DESCRIPTION

[0034] Figure 1 It is a three-dimensional diagram of a control unit according to an embodiment of the utility model. Figure 2 yes Figure 1 A three-dimensional diagram of some components of a control unit. Figure 3 yes Figure 2 A cross-sectional view of some components of the control unit along line II. Please refer to Figures 1 to 3 The control unit 100 of this embodiment is, for example, a power control unit of an engine of a vehicle, and includes a housing 110, a cover 120, a plurality of fasteners 130, a vibration damping sheet 140, and a plurality of fixing members 150. The housing 110 is used to accommodate the electrical components of the power control unit, and the cover 120 covers the housing 110. The lower side of the cover 120 has a plurality of fastening portions 122, and the plurality of fasteners 130 are, for example, screws and are fastened to the plurality of fastening portions 122, respectively. The vibration damping sheet 140 is, for example, made of a vibration damping material and is attached to the cover 120 by gluing or other appropriate means to provide a vibration damping effect. The vibration damping sheet 140 has a plurality of holes 140a, and the plurality of fastening portions 122 pass through the plurality of holes 140a, respectively. The plurality of fixing members 150 are attached to the plurality of fastening portions 122, respectively. Specifically, each fixing member 150 is, for example, a metal washer, which is passed through by the fastener 130 and fixed to the fastening portion 122 by the fastener 130.

[0035] Figure 4A yes Figure 1 A schematic cross-sectional view of the control unit along line II-II. Figure 4B Show Figure 4A The vibration damper is detached from the cover. Figures 2 to 4B In this embodiment, each fixing member 150 has a flange portion 152 (also referred to as an enlarged diameter portion), and the outer diameter d1 of the flange portion 152 (indicated at Figure 4A and Figure 4B) is larger than the aperture d2 of the hole 140a (indicated at Figure 4A and Figure 4B As described above, in the control unit 100 of the present embodiment, the vibration damping sheet 140 has a hole 140a for the fastening portion 122 of the cover 120 to pass through, and the fixing member 150 having a large outer diameter d1 is attached to the fastening portion 122 and is located below the vibration damping sheet 140. Accordingly, even if the vibration damping sheet 140 falls off from the cover 120 and FIG. 4A to FIG. 4B As shown, the vibration-damping sheet 140 moves downward due to gravity, and is stopped by the fixing member 150 and does not fall down. Therefore, the control unit 100 of this embodiment can prevent the vibration-damping sheet 140 from falling from the cover body, so as to avoid short circuit caused by conduction between the falling vibration-damping sheet 140 and the high-voltage electrical components of the control unit 100, thereby improving the safety of the control unit 100.

[0036] Figure 5 yes Figure 1 The cross-sectional view of the control unit along line III-III. Please refer to Figure 5 In this embodiment, the number of the electrical components 160 disposed in the housing 110 of the control unit 100 is, for example, multiple. In addition, there is no electrical component 160 directly below the location where the fastening portion 122 and the fixing member 150 are disposed. Accordingly, there is no fastening portion 122 and the fixing member 150 directly above the electrical component 160, so that the electrical component 160 has sufficient space for disposing in the up-down direction, and the space outside the electrical component 160 is efficiently used to dispose the fastening portion 122 and the fixing member 150.

[0037] Specifically, in this embodiment, the fastening portion 122 and the fixing member 150 are as follows: Figure 2 As shown, the fastening portion 122 and the fixing member 150 are located in the peripheral area of ​​the vibration-damping plate 140, and can be located in the space outside the electrical component 160 as described above. In addition, since the fastening portion 122 and the fixing member 150 are disposed in the peripheral area of ​​the vibration-damping plate 140, and not in the central area of ​​the cover 120 with a larger vibration displacement, the vibration amplitude of the cover 120 can be prevented from increasing due to the weight of the fastening portion 122 and the fixing member 150.

[0038] Figure 6 It is a cross-sectional schematic diagram of some components of a control unit according to another embodiment of the utility model. Figure 6 The cover 120', fastener 130', vibration damping plate 140', hole 140a', fixing member 150', flange 152' of the embodiment shown in the figure are arranged and function in the same or similar manner as Figure 3 The arrangement and function of the cover 120 , the fastener 130 , the vibration-damping plate 140 , the hole 140 a , the fixing member 150 , and the flange portion 152 of the illustrated embodiment will not be described in detail herein. Figure 6 The embodiment shown and Figure 3 The main difference of the embodiment shown is that Figure 6 The cover 120' does not have Figure 3 The fastening portion 122 shown, instead, Figure 6 The control unit of the illustrated embodiment includes a retainer 170, which is attached to the cover 120' by welding or other suitable means and has a protrusion 172. The fixing member 150' is fastened to the protrusion 172. The protrusion 172 passes through the hole 140a' of the vibration damping plate 140'. And, as Figure 3 The outer diameter of the flange portion 152 of the fixing member 150 of the illustrated embodiment is larger than the hole diameter of the hole 140a. Figure 6 The outer diameter of the flange portion 152' of the fixing member 150' is larger than the diameter of the hole 140a', which can also prevent the vibration damping plate 140' from falling off the cover 120'. Specifically, each fixing member 150' is, for example, a metal washer, which is passed through by the fastener 130' and fixed to the protrusion 172 by the fastener 130'.

[0039] Furthermore, Figure 3 The cover 120 and the fastening portion 122 shown are integrally formed, for example, by a die-casting process. Figure 6 The cover 120' shown does not have Figure 3 The fastening portion 122 shown, therefore, the cover 120' can be a sheet metal part formed by a sheet metal process to have a smaller thickness, thereby enabling the vibration damping sheet 140' to more effectively suppress the vibration of the cover 120'. In addition, Figure 3 In the embodiment shown, the fastening portion 122 on the cover 120 forms a screw hole 122a (indicated at Figure 4A and Figure 4B ) for fastener 130 to be screwed. Figure 6 In the embodiment shown, a nut 180 is welded on the retaining member 170 for the fastener 130' to be screwed. Figure 6 The cover 120' of the embodiment shown does not need to form a screw hole. In addition, the retaining member 170 is a sheet metal member formed by a sheet metal process, and its structural strength is greater than that of a die-casting member. Therefore, the axial dimension of the screw hole formed by the retaining member 170 and the nut member 180 can be smaller than Figure 3 The axial dimension of the screw hole formed by the fastening portion 122 on the cover 120 of the illustrated embodiment is sufficient to provide good screw-fitting structural strength, thus facilitating the reduction of the overall structural height of the control unit.

[0040] In summary, in the control unit of the utility model, the vibration damping sheet has a hole for the fastening part of the cover body to pass through, and a fixing member with a large outer diameter is arranged below the vibration damping sheet. Accordingly, even if the vibration damping sheet falls off from the cover body, the vibration damping sheet will be stopped by the fixing member and will not fall down. Thus, the control unit of the utility model can prevent the vibration damping sheet from falling from the cover body, so as to avoid a short circuit caused by the conduction between the falling vibration damping sheet and the high-voltage electrical components of the control unit, thereby improving the safety of the control unit.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model 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 solution recorded 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 solution to deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A control unit, It is characterized in that include: case; A cover body, covering the shell, wherein the lower side of the cover body has a fastening portion; a fastener fastened to the fastening portion; a vibration-damping sheet attached to the cover body and having a hole through which the fastening portion passes; as well as A fixing member is attached to the fastening portion and has a flange portion, wherein the outer diameter of the flange portion is larger than the hole diameter of the hole.

2. The control unit according to claim 1, It is characterized in that It also includes an electrical component, which is arranged in the housing. The electrical component does not exist below the locations where the fastening portion and the fixing member are arranged.

3. The control unit according to claim 1 or 2, It is characterized in that The fastening portion and the fixing member are located in the peripheral area of ​​the vibration damping plate.

4. A control unit, It is characterized in that include: case; A cover body, covering the shell; a retaining member attached to the cover body and having a convex portion; a fixing member, fastened to the protrusion; as well as a vibration-damping sheet attached to the cover and having a hole through which the protrusion passes, The fixing member has a flange portion, and an outer diameter of the flange portion is larger than a hole diameter of the hole.

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