Power electronic equipment and case thereof
By setting reinforcement parts outside the chassis of power electronic equipment overlapping correspondingly with the device, the problem of volume and weight increase after increasing load capacity of the chassis is solved, and a balance between strength and lightweight is achieved.
Patent Information
- Application Number
- CN202422382002.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-27
AI Technical Summary
After the load capacity of the existing power electronic equipment chassis increases, the volume and weight of the chassis increase, resulting in inconvenient handling and insufficient strength. It is necessary to increase the strength of the chassis while reducing the overall weight.
Reinforcements are provided outside the chassis body, with gaps between adjacent reinforcements and corresponding to the internal devices, forming overlapping parts to increase the strength of the load-bearing position while reducing the weight increase in the non-load-bearing position.
While increasing the strength of the chassis, it reduces the overall weight of the chassis, reduces the difficulty of handling, and achieves a balance between strength and lightweight.
Smart Images
Figure CN223182463U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power electronics technology, and more specifically, to a power electronic device and its chassis. Background Art
[0002] In power electronic devices, as the loading capacity increases, the load on the chassis increases, and both the volume and weight of the chassis become larger.
[0003] Due to the increase in the weight of the chassis, it is inconvenient to carry the chassis; due to the increase in the load-bearing capacity of the chassis, the strength of the chassis cannot meet the requirements, and it is necessary to improve the strength of the chassis.
[0004] Therefore, how to improve the strength of the chassis while reducing the impact on the overall weight of the chassis is an urgent problem to be solved by those skilled in the art at present. Summary of the Utility Model
[0005] In view of this, the purpose of this application is to provide a power electronic device and its chassis, which can improve the strength of the chassis while reducing the impact on the overall weight of the chassis.
[0006] To achieve the above purpose, this application provides the following technical solutions:
[0007] A chassis of a power electronic device, comprising:
[0008] A chassis body, in which at least two devices are arranged, and at least two of the devices are arranged on the chassis bottom plate of the chassis body;
[0009] At least two reinforcing members, the reinforcing members are located outside the chassis body and arranged on the chassis bottom plate of the chassis body, there is a gap between two adjacent reinforcing members, the reinforcing member has a corresponding device, and the projections of the corresponding device and the reinforcing member on the chassis bottom plate have an overlapping part.
[0010] In some possible embodiments, among the corresponding device and the reinforcing member, the projection of the device on the chassis bottom plate covers the entire projection of the reinforcing member on the chassis bottom plate.
[0011] In some possible embodiments, the reinforcing members and the devices are in one-to-one correspondence; or, at least one of the reinforcing members and the devices are in one-to-one correspondence; at least two of the reinforcing members correspond to the same device.
[0012] In some possible embodiments, any two of the reinforcing members are sequentially distributed in a first direction; the reinforcing members are strip-shaped, the length direction of the reinforcing members is parallel to a second direction, and in the second direction, the reinforcing members extend from one side of the chassis bottom plate to the other side of the chassis bottom plate; there is an included angle between the second direction and the first direction.
[0013] In some possible embodiments, the chassis bottom plate is rectangular, the first direction is the length direction of the chassis bottom plate, and the second direction is the width direction of the chassis bottom plate.
[0014] In some possible embodiments, the chassis is for being placed on the guide rail of the bracket and entering and exiting the bracket along the first direction; the guide rail is fixed to the bracket by guide rail fasteners; in the second direction, the guide rail fasteners are distributed on both sides of the chassis body and both sides of the reinforcing members, there are chassis chamfers at the bottom of both sides of the chassis body, and there are reinforcing member chamfers on both sides of the reinforcing members; both the chassis chamfers and the reinforcing member chamfers give way to the guide rail fasteners.
[0015] In some possible embodiments, the reinforcing members are fixed to the chassis body by reinforcing member fasteners; in the height direction of the chassis body, the reinforcing member fasteners are flush with the inner plate surface of the chassis bottom plate or the reinforcing member fasteners are lower than the inner plate surface of the chassis bottom plate.
[0016] In some possible embodiments, the chassis further includes a roller assembly, the roller assembly includes a roller support and rollers, the roller support is fixed to the reinforcing member, and the rollers are rotatably arranged on the roller support around their axes.
[0017] In some possible embodiments, the reinforcing member includes: a reinforcing member top plate, a reinforcing member bottom plate, and reinforcing member side plates connecting the reinforcing member top plate and the reinforcing member bottom plate; wherein, the roller support is fixed to the reinforcing member bottom plate, and the reinforcing member top plate is fixed to the chassis bottom plate.
[0018] In some possible embodiments, the reinforcing member top plate has an opening, the roller support is located on the side of the reinforcing member bottom plate close to the reinforcing member top plate, and the reinforcing member bottom plate has through holes for the rollers to pass through.
[0019] In some possible embodiments, the reinforcing member further includes a connecting plate; wherein, the connecting plate is located inside the opening and the connecting plate connects two opposite reinforcing member side plates; or, the connecting plate is located outside the opening and the connecting plate connects the reinforcing member bottom plate and the reinforcing member top plate.
[0020] Based on the chassis of the power electronic device provided by the present application, the present application further provides a power electronic device, which includes the chassis of the power electronic device described in any of the above embodiments.
[0021] In the chassis of the power electronic device provided by the present application, at least two reinforcing members are provided on the chassis bottom plate of the chassis body, and the reinforcing members are located outside the chassis body. In this way, the reinforcing members improve the strength of the entire chassis body. Moreover, there is a gap between two adjacent reinforcing members, and the reinforcing members correspond to the devices inside the chassis body and arranged on the chassis bottom plate. The projections of the corresponding devices and the reinforcing members on the chassis bottom plate have an overlapping part. In this way, the reinforcing members are distributed according to the distribution of the devices on the chassis bottom plate, improving the strength of the load-bearing positions of the chassis body, thereby effectively improving the strength of the entire chassis. Since there is no need to improve the strength of the non-load-bearing positions of the chassis body, the influence of the overall weight of the chassis is effectively reduced, thus reducing the impact on handling the chassis. Therefore, the design of the above chassis improves the strength of the chassis while reducing the influence of the overall weight of the chassis, thereby reducing the impact on handling the chassis. Description of the Drawings
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.
[0023] Figure 1 It is the front view of the chassis of the power electronic device provided by the embodiment of the present application;
[0024] Figure 2 It is the cross-sectional view of the chassis of the power electronic device provided by the embodiment of the present application;
[0025] Figure 3 It is the schematic diagram of the chassis of the power electronic device provided by the embodiment of the present application placed on a bracket;
[0026] Figure 4 It is a schematic structural diagram of the reinforcing member and the roller assembly in the chassis of the power electronic device provided by the embodiment of the present application;
[0027] Figure 5 For Figure 4 The schematic structural diagram of the other direction of the shown structure;
[0028] Figure 6 It is another schematic structural diagram of the reinforcing member and the roller assembly in the chassis of the power electronic device provided by the embodiment of the present application;
[0029] Figure 7 is Figures 4 - 6 a schematic structural diagram of the roller assembly shown;
[0030] Figure 8 is Figure 7 a schematic structural diagram of the roller assembly in another direction shown;
[0031] Figure 9 is another schematic structural diagram of the reinforcement and the roller assembly in the chassis of the power electronic device provided by the embodiment of the present application;
[0032] Figure 10 is Figure 9 a schematic structural diagram of the structure shown in another direction;
[0033] Figure 11 is Figure 9 and Figure 10 a schematic structural diagram of the roller assembly shown;
[0034] Figure 12 is Figure 11 a schematic structural diagram of the roller assembly in another direction shown;
[0035] Figure 13 is Figure 9 and Figure 10 a connection structure diagram of the roller assembly and the reinforcement in;
[0036] Explanation of reference numerals:
[0037] 1 is the chassis body, 11 is the chassis bottom plate, 12 is the chassis chamfer, 13 is the handle mounting hole;
[0038] 2 is the reinforcement, 21 is the reinforcement top plate, 211 is the reinforcement mounting surface, 212 is the third mounting hole, 22 is the reinforcement bottom plate, 221 is the through hole, 222 is the fifth mounting hole, 23 is the reinforcement side plate, 231 is the reinforcement chamfer, 24 is the connecting plate;
[0039] 3 is the roller assembly, 31 is the roller support member, 311 is the support sleeve, 312 is the support plate, 3121 is the fourth mounting hole, 32 is the roller, 33 is the positioning pin;
[0040] 4 is the device, 4a is the switching device, 4b is the capacitor assembly, 4c is the inductor assembly;
[0041] 5 is the bracket; 6 is the guide rail; 7 is the guide rail fastener; 8 is the rivet nut; 9 is the screw; 10 is the nut. Detailed implementation manners
[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.
[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and claims of the present application, the singular forms "a", "an", "the", "above", "said", "this" are also intended to include, for example, the expression "one or more", unless the context clearly indicates otherwise. It should also be understood that in the embodiments of the present application, "one or more" means one, two or more than two; "and / or" describes the association relationship of associated objects and means that three relationships can exist; for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally means an "or" relationship between the associated objects before and after.
[0044] The reference to "one embodiment" or "some embodiments" etc. described in this specification means that a specific feature, structure or characteristic described in combination with that embodiment is included in one or more embodiments of the present application. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.
[0045] The "multiple" involved in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the terms "first", "second" and other words are only used for the purpose of distinguishing descriptions and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.
[0046] The "parallel" and "perpendicular" involved in the present application are "substantially parallel" and "substantially perpendicular" in actual operation. "Substantially parallel" can be understood as parallel with a certain error. Similarly, "substantially perpendicular" can be understood as perpendicular with a certain error.
[0047] In power electronic devices, as the loading capacity increases, the volume of the chassis becomes larger and the weight becomes heavier. To ensure the performance of the chassis, it is necessary to improve the strength of the chassis. In power electronic devices, components are usually arranged on the chassis bottom plate. Generally, it is necessary to thicken the entire chassis bottom plate or set reinforcement structures on the entire chassis bottom plate, etc., which further increases the weight of the chassis itself and makes it very inconvenient to carry the chassis.
[0048] To solve the above technical problems, the embodiments of the present application provide a chassis for a power electronic device and a power electronic device, which can improve the strength of the chassis while reducing the impact on the overall weight of the chassis.
[0049] For the convenience of description, the chassis of the power electronic device is simply referred to as the chassis.
[0050] As Figure 1 and Figure 2 shown, the chassis of the power electronic device provided by the embodiments of the present application includes: a chassis body 1 and at least two reinforcing members 2.
[0051] A handle can be arranged on the surface of the chassis body 1. As Figure 3 shown, a handle mounting hole 13 is arranged on the front side of the chassis body 1. Of course, it can be selected that the handle mounting hole 13 is arranged on the rear side of the chassis body 1, or the chassis body 1 can also be not provided with a handle.
[0052] Three components 4 are arranged in the chassis body 1, and the three components 4 are all arranged on the chassis bottom plate 11 of the chassis body 1. Exemplarily, the three components 4 are respectively a switching device 4a, a capacitor assembly 4b and an inductor assembly 4c. Among them, the switching device 4a includes an input switching device and an output switching device. The input switching device is electrically connected to the capacitor assembly 4b, the capacitor assembly 4b is electrically connected to the inductor assembly 4c, and the inductor assembly 4c is electrically connected to the output switching device.
[0053] In actual situations, two or more than four components 4 can also be arranged in the chassis body 1, and at least two components 4 are arranged on the chassis bottom plate 11, which is not limited to the above three components 4.
[0054] The reinforcing member 2 is located outside the chassis body 1 and is arranged on the chassis bottom plate 11 of the chassis body 1. In this way, the reinforcing member improves the strength of the entire chassis body 1.
[0055] For the specific structure of the reinforcing member 2, it is selected according to the actual situation, and the embodiments of the present application do not limit this.
[0056] As Figures 4 - 6 , Figure 9 and Figure 10As shown in the figure, the reinforcement member 2 includes: a reinforcement member top plate 21, a reinforcement member bottom plate 22, and a reinforcement member side plate 23 connecting the reinforcement member top plate 21 and the reinforcement member bottom plate 22; among them, the reinforcement member top plate 21 is disposed on the chassis bottom plate 11. In this case, the top surface of the reinforcement member top plate 21 is the reinforcement member mounting surface 211.
[0057] The reinforcement member side plate 23 can be one and annular, such as a polygonal ring or a circular ring, etc.; or the reinforcement member side plate 23 is multiple and connected in sequence to form an annular structure, such as a polygonal annular structure or a circular annular structure, etc. The above-mentioned reinforcement member top plate 21 can cover the reinforcement member bottom plate 22, as Figure 4 and Figure 6 shown, the part where the reinforcement member top plate 21 covers the reinforcement member bottom plate 22. As Figure 9 shown, the above-mentioned reinforcement member top plate 21 can also be located at the periphery of the reinforcement member bottom plate 22.
[0058] As Figure 4 、 Figure 6 and Figure 9 shown, in order to improve the strength of the reinforcement member 2, it can be selected that the reinforcement member top plate 21 has an opening, and the reinforcement member 2 further includes a connecting plate 24; among them, the connecting plate 24 is located within the opening. As Figure 9 shown, the connecting plate 24 connects two opposite reinforcement member side plates 23; or, as Figure 4 and Figure 6 shown, the connecting plate 24 is located outside the opening, and the connecting plate 24 connects the reinforcement member bottom plate 22 and the reinforcement member top plate 21. In this way, the connecting plate 24 plays a strengthening role, improving the strength of the reinforcement member 2, and thus improving the strength of the entire chassis.
[0059] In actual situations, the reinforcement member 2 can also be other structures, such as solid reinforcement blocks, etc., and the embodiments of the present application are not limited thereto.
[0060] In the embodiments of the present application, there is a gap between two adjacent reinforcement members 2, the reinforcement member 2 has a corresponding device 4, and the projections of the corresponding device 4 and the reinforcement member 2 on the chassis bottom plate 11 have an overlapping part. In this way, the reinforcement member 2 is distributed according to the distribution of the devices 4 on the chassis bottom plate 11, improving the strength of the load-bearing positions of the chassis body 1, and thus effectively improving the strength of the entire chassis. Since there is no need to improve the strength of the non-load-bearing positions of the chassis body 1, compared with the prior art of increasing the thickness of the entire chassis bottom plate or setting a reinforcement structure on the entire chassis bottom plate, the influence on the overall weight of the chassis is effectively reduced, and thus the influence on handling the chassis is reduced.
[0061] Therefore, the chassis provided by the embodiments of the present application, while improving the strength of the chassis, reduces the influence on the overall weight of the chassis, and thus reduces the influence on handling the chassis.
[0062] In the embodiments of the present application, the projections of the corresponding device 4 and the reinforcing member 2 on the chassis bottom plate 11 have an overlapping portion. It can be selected that: among the corresponding device 4 and the reinforcing member 2, a part of the projection of the device 4 on the chassis bottom plate 11 overlaps with a part of the projection of the reinforcing member 2 on the chassis bottom plate 11, or a part of the projection of the device 4 on the chassis bottom plate 11 overlaps with the entire projection of the reinforcing member 2 on the chassis bottom plate 11, or the entire projection of the device 4 on the chassis bottom plate 11 overlaps with the entire projection of the reinforcing member 2 on the chassis bottom plate 11, or the entire projection of the device 4 on the chassis bottom plate 11 overlaps with a part of the projection of the reinforcing member 2 on the chassis bottom plate 11.
[0063] In order to effectively reduce the weight of the reinforcing member while improving the strength of the chassis, thereby effectively reducing the impact on the overall weight of the chassis, it can be selected that among the corresponding device 4 and the reinforcing member 2, a part of the projection of the device 4 on the chassis bottom plate 11 overlaps with the entire projection of the reinforcing member 2 on the chassis bottom plate 11, or the entire projection of the device 4 on the chassis bottom plate 11 overlaps with the entire projection of the reinforcing member 2 on the chassis bottom plate 11. This can be understood as: among the corresponding device 4 and the reinforcing member 2, the projection of the device 4 on the chassis bottom plate 11 covers the entire projection of the reinforcing member 2 on the chassis bottom plate 11.
[0064] In the embodiments of the present application, the reinforcing member 2 has a corresponding device 4. Among them, there are various corresponding relationships between the reinforcing member 2 and the device 4.
[0065] In some embodiments, the reinforcing member 2 and the device 4 are in one-to-one correspondence. When the size of the device 4 is small, it is preferable to select that the reinforcing member 2 and the device 4 are in one-to-one correspondence, which is convenient for improving the strength of the chassis and also for reducing the impact on the overall weight of the chassis. Of course, in other cases, it can also be selected that the reinforcing member 2 and the device 4 are in one-to-one correspondence.
[0066] In some other embodiments, at least two reinforcing members 2 correspond to the same device 4. When the size of the device 4 is large, it is preferable to select that at least two reinforcing members 2 correspond to the same device 4, which is convenient for reducing the impact on the overall weight of the chassis while improving the strength of the chassis. Of course, in other cases, it can also be selected that at least two reinforcing members 2 correspond to the same device 4.
[0067] In some other embodiments, at least one reinforcing member 2 corresponds to the device 4 in one-to-one correspondence, and at least two reinforcing members 2 correspond to the same device 4. In this way, it can be applicable to the situation where the sizes of multiple devices 4 are different. Of course, in other cases, it can also be selected in this way.
[0068] Exemplarily, such as Figure 2As shown in the figure, there are four reinforcing members 2, and there are three devices 4 arranged on the chassis bottom plate 11. The three devices 4 are a switching device 4a, a capacitor assembly 4b, and an inductor assembly 4c respectively; one reinforcing member 2 corresponds to the switching device 4a. Among the switching device 4a and the corresponding reinforcing member 2, the projection of the switching device 4a on the chassis bottom plate 11 covers the projection of this reinforcing member 2 on the chassis bottom plate 11; the other two reinforcing members 2 correspond to the capacitor assembly 4b. Among the capacitor assembly 4b and the corresponding two reinforcing members 2, the projection of the capacitor assembly 4b on the chassis bottom plate 11 covers the projections of the above two reinforcing members 2 on the chassis bottom plate 11; the other reinforcing member 2 corresponds to the inductor assembly 4c. Among the inductor assembly 4c and the corresponding one reinforcing member 2, the projection of the inductor assembly 4c on the chassis bottom plate 11 covers the projection of this reinforcing member 2 on the chassis bottom plate 11.
[0069] In some embodiments, any two reinforcing members 2 can be sequentially distributed along the first direction. The reinforcing member 2 is strip-shaped, and the length direction of the reinforcing member 2 is parallel to the second direction; in the second direction, the reinforcing member 2 extends from one side of the chassis bottom plate 11 to the other side of the chassis bottom plate; there is an included angle between the second direction and the first direction. In this way, in the second direction, there is one reinforcing member 2, which continuously strengthens the strength of the chassis bottom plate 11 in the second direction and effectively improves the strength of the chassis bottom plate 11.
[0070] It should be noted that the devices 4 corresponding to the reinforcing members 2 are also sequentially distributed along the first direction. In order to improve the chassis strength and facilitate the arrangement of the reinforcing members 2, the second direction is perpendicular to the first direction. Of course, the first direction and the second direction can also be relatively inclined.
[0071] In the chassis, the chassis bottom plate 11 can be rectangular. In order to facilitate the layout of the devices 4, at least two devices 4 can be selected to be sequentially distributed along the length direction of the chassis bottom plate 11. Since the length direction of the chassis bottom plate 11 is relatively long, the chassis bottom plate 11 is relatively easy to deform. In order to reduce the probability of deformation of the chassis bottom plate 11, the first direction described above can be selected as the length direction of the chassis bottom plate 11, and the second direction described above can be selected as the width direction of the chassis bottom plate 11. In this case, the length direction of the reinforcing member 2 is the same as the width direction of the chassis bottom plate 11, and the length of the reinforcing member 2 is close to the width of the chassis bottom plate 11 to effectively improve the strength of the chassis.
[0072] In actual situations, the first direction can also be the width direction of the chassis bottom plate 11 or other directions, and the chassis bottom plate 11 can also be of other shapes. The embodiments of the present application do not limit this.
[0073] In some other embodiments, at least two reinforcing members 2 are sequentially distributed in the first direction, and at least two reinforcing members 2 are sequentially distributed in the second direction. There is an included angle between the second direction and the first direction, which is not limited to the above embodiments. Among them, the reinforcing member 2 can also be of other shapes, such as circular or oval, etc., and the embodiments of the present application do not limit this.
[0074] As Figure 3 shown, in some embodiments, the opposite sides of the chassis body 1 have chassis chamfers 12, which can improve the local strength of the chassis body 1. In order to effectively improve the strength of the bottom of the chassis body 1, it can be selected that the opposite sides of the chassis body 1 have chassis chamfers 12 at the bottom.
[0075] Correspondingly, in order to improve the local strength of the reinforcing member 2, it can be selected that the opposite sides of the reinforcing member 2 have reinforcing member chamfers 231. In the case where the reinforcing member 2 includes a reinforcing member side plate 23, the reinforcing member chamfers 231 can be distributed on the reinforcing member side plate 23.
[0076] In the embodiments of the present application, the chassis can be placed on the guide rail 6 of the bracket 5, and the guide rail 6 is fixed to the bracket 5 through a guide rail fastener 7.
[0077] As described above, any two reinforcing members 2 can be sequentially distributed in the first direction. The reinforcing member 2 is strip-shaped, and the length direction of the reinforcing member 2 is parallel to the second direction; in the second direction, the reinforcing member 2 extends from one side of the chassis bottom plate 11 to the other side of the chassis bottom plate. Based on this, the chassis can enter and exit the bracket in the first direction. In the second direction, the guide rail fasteners 7 are distributed on both sides of the chassis body 1 and both sides of the reinforcing member 2. In this case, interference is likely to occur between the chassis body 1 and the guide rail fasteners 7, and interference is also likely to occur between the reinforcing member 2 and the guide rail fasteners 7. In order to avoid interference, it can be selected that in the second direction, the bottom sides of both sides of the chassis body 1 have chassis chamfers 12, and both sides of the reinforcing member 2 have reinforcing member chamfers 231, and both the chassis chamfers 12 and the reinforcing member chamfers 231 give way to the guide rail fasteners 7. In this way, while improving the strength of the chassis, interference between the chassis body 1 and the guide rail fasteners 7 is avoided; while improving the strength of the reinforcing member 2, interference between the reinforcing member 2 and the guide rail fasteners 7 is avoided.
[0078] Regarding the sizes of the chassis chamfers 12 and the reinforcing member chamfers 231, they are selected according to the actual situation, and the embodiments of the present application do not limit this.
[0079] The axial direction of the above-mentioned guide rail fastener 7 can be the second direction, the height direction of the chassis or other directions, and the embodiments of the present application do not limit this either.
[0080] In the embodiments of the present application, the reinforcing member 2 and the chassis bottom plate 11 can be relatively fixed or can have relative movement. To effectively improve the strength of the chassis body 1, the reinforcing member 2 is fixed to the chassis bottom plate 11. Among them, there are various fixing methods for the reinforcing member 2.
[0081] In some embodiments, the reinforcing member 2 is fixed to the chassis bottom plate 11 by welding. In this way, it is convenient to ensure the connection strength between the reinforcing member 2 and the chassis body 1, and thus it is convenient to ensure the strength of the chassis.
[0082] In some other embodiments, the reinforcing member 2 is fixed to the chassis bottom plate 11 by a reinforcing member fastener. In this way, the fixing of the reinforcing member 2 is facilitated. For the convenience of maintenance, it can be selected that the reinforcing member 2 is detachably fixed to the chassis bottom plate 11 by a reinforcing member fastener.
[0083] In the above embodiments, a part of the reinforcing member fastener is located inside the chassis body 1. To avoid the interference of the reinforcing member fastener with the installation of the device 4, it can be selected that in the height direction of the chassis body 1, the reinforcing member fastener is flush with the inner plate surface of the chassis bottom plate 11, or the reinforcing member fastener is lower than the inner plate surface of the chassis bottom plate 11. Of course, the first fastening portion can also be higher than the inner plate surface of the chassis bottom plate 11, as long as the installation of the device 4 is not interfered.
[0084] It should be noted that the inner plate surface of the chassis bottom plate 11 refers to the plate surface of the chassis bottom plate 11 located inside the chassis body 1.
[0085] When the reinforcing member 2 is fixed to the chassis bottom plate 11 by a reinforcing member fastener, there are various specific structures. On the one hand, the chassis bottom plate 11 is provided with a first mounting hole (not shown in the figure). As Figure 4 shown, the reinforcing member 2 is provided with a blind rivet nut 8, and a screw (not shown in the figure) passing through the first mounting hole and fixed inside the blind rivet nut 8 fixedly connects the chassis bottom plate 11 and the reinforcing member 2. In this case, the reinforcing member fastener includes a blind rivet nut 8 and a screw, and a part of the screw is located inside the chassis body 1. To avoid the interference of the screw with the installation of the device 4, the screw is a countersunk head screw. In this way, the screw can be flush with the inner plate surface of the chassis bottom plate 11. In actual situations, the blind rivet nut 8 can also be replaced by a threaded hole.
[0086] On the other hand, the reinforcing member 2 is provided with press riveting screws (not shown in the figure), and the chassis bottom plate 11 is provided with second mounting holes (not shown in the figure) for the press riveting screws to pass through. The press riveting screws are fixedly connected to the chassis bottom plate 11 and the reinforcing member 2 by cooperating with nuts (not shown in the figure). In this case, the reinforcing member fasteners include press riveting screws and nuts, and part of the press riveting screws and the nuts are both located inside the chassis body 1. In order to avoid interference between the press riveting screws and the nuts with the installation of the device 4, the second mounting holes can be selected as counterbores. In this way, the press riveting screws can be lower than the inner plate surface of the chassis bottom plate 11, the nuts can be lower than the inner plate surface of the chassis bottom plate 11, or the nuts can be flush with the inner plate surface of the chassis bottom plate 11.
[0087] For the convenience of installing the press riveting screws, as Figure 6 and Figure 9 shown, the reinforcing member 2 is provided with third mounting holes 212, and the press riveting screws are installed at the third mounting holes 212. In actual situations, the press riveting screws can also be replaced with ordinary screws.
[0088] As Figures 4 - 13 shown, for the convenience of moving the chassis, the above-mentioned chassis further includes a roller assembly 3. The roller assembly 3 includes a roller support member 31 and rollers 32. The roller support member 31 is fixed to the reinforcing member 2, and the rollers 32 are rotatably arranged on the roller support member 31 around their axes.
[0089] It should be noted that when the chassis is placed on the guide rail 6 of the bracket 5, the rollers 32 are in contact with the guide rail 6 of the bracket 5. Through the setting of the roller assembly 3, the rolling fit between the chassis and the guide rail 6 is realized, which facilitates the chassis to enter and exit the bracket 5.
[0090] For the convenience of arranging the rollers 32, the above-mentioned pipe support member 31 is fixed with a positioning pin 33, and the rollers 32 are rotatably arranged on the positioning pin 33. Of course, it can also be selected that the positioning pin 33 is rotatably arranged on the pipe support member 31 around its axis, and the pipe support member 31 and the positioning pin 33 are relatively fixed in the axial direction of the positioning pin 33, and the rollers 32 are fixed to the positioning pin 33.
[0091] In the embodiment of the present application, the roller support member 31 can be fixed to the reinforcing member 2 by welding, roller support fasteners or other structures. For the convenience of maintenance, the roller support member 31 is detachably fixed to the reinforcing member 2 by roller support fasteners.
[0092] As described above, the reinforcing member 2 includes a reinforcing member bottom plate 22, and the roller support member 31 is fixed to the reinforcing member bottom plate 22. This facilitates the installation of the roller support member 31 and also facilitates the rolling of the chassis body 1 through the rollers 32.
[0093] For the specific structure of the roller support 31, it is selected according to the actual situation, and the embodiments of the present application do not limit this. Exemplarily, when the roller support 31 is welded to the reinforcing member bottom plate 22, as Figure 7 and Figure 8 shown, the roller support 31 is in a sleeve shape, and the end face of the roller support 31 is welded to the reinforcing member bottom plate 22; when the roller support 31 is fixed to the reinforcing member bottom plate 22 through a roller support fastener, as Figures 11 - 13 shown, the roller support 31 may include a support sleeve 311 and a support plate 312 fixedly connected. The support plate 312 is fixed to the reinforcing member bottom plate 22 through a roller support fastener. The support plate 312 has a fourth mounting hole 3121 for the roller support fastener to pass through. Correspondingly, the reinforcing member bottom plate 22 has a fifth mounting hole 222 for the roller support fastener to pass through. Among them, the roller support fastener includes a screw 9 and a nut 10, and the screw 9 passes through the fifth mounting hole 222 and the fourth mounting hole 3121.
[0094] It should be noted that when the reinforcing member 2 is provided with a press riveting screw and the chassis bottom plate 11 is provided with a second mounting hole for the press riveting screw to pass through, and the press riveting screw is fixedly connected to the chassis bottom plate 11 and the reinforcing member 2 by cooperating with the nut, the above screw 9 can also be selected as the press riveting screw.
[0095] In order to facilitate the installation of the roller support 31, a structure with an opening can be selected for the reinforcing member top plate 21. The roller support 31 is located on the side of the reinforcing member bottom plate 22 close to the reinforcing member top plate 21, and the reinforcing member bottom plate 22 has a through hole 221 for the roller 32 to pass through. In this way, the roller support 31 can be installed on the side of the reinforcing member 2 close to the chassis body 1, thus facilitating the installation.
[0096] The power electronic device provided by the embodiments of the present application includes the chassis provided by the above embodiments. Since the chassis provided by the above embodiments has the above technical effects, the power electronic device provided by the embodiments of the present application also has corresponding technical effects, which will not be elaborated here.
[0097] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A chassis of a power electronic device, characterized in that Comprising: A chassis body, at least two devices are arranged inside the chassis body, and at least two of the devices are arranged on the chassis bottom plate of the chassis body; At least two reinforcing members, the reinforcing members are located outside the chassis body and arranged on the chassis bottom plate of the chassis body, there is a gap between two adjacent reinforcing members, the reinforcing members have corresponding devices, and the projections of the corresponding devices and the reinforcing members on the chassis bottom plate have an overlapping part.
2. The chassis according to claim 1, characterized in that, Among the corresponding devices and the reinforcing members, the projection of the device on the chassis bottom plate covers the entire projection of the reinforcing member on the chassis bottom plate.
3. The chassis according to claim 1, characterized in that, The reinforcing members and the devices correspond one by one; or, at least one of the reinforcing members and the devices correspond one by one; at least two of the reinforcing members correspond to the same device.
4. The chassis according to claim 1, characterized in that, Any two of the reinforcing members are sequentially distributed along a first direction; the reinforcing members are strip-shaped, the length direction of the reinforcing members is parallel to a second direction, and in the second direction, the reinforcing members extend from one side of the chassis bottom plate to the other side of the chassis bottom plate; there is an included angle between the second direction and the first direction.
5. The chassis according to claim 4, characterized in that, The chassis bottom plate is rectangular, the first direction is the length direction of the chassis bottom plate, and the second direction is the width direction of the chassis bottom plate.
6. The chassis according to claim 4, characterized in that, The chassis is used to be placed on the guide rail of the bracket and enter and exit the bracket along the first direction; the guide rail is fixed to the bracket through a guide rail fastener; in the second direction, the guide rail fasteners are distributed on both sides of the chassis body and both sides of the reinforcing members, the two bottom sides of the chassis body have chassis chamfers, and the two sides of the reinforcing members have reinforcing member chamfers; both the chassis chamfers and the reinforcing member chamfers give way to the guide rail fasteners.
7. The chassis according to claim 1, characterized in that, The reinforcing members are fixed to the chassis body through reinforcing member fasteners; in the height direction of the chassis body, the reinforcing member fasteners are flush with the inner plate surface of the chassis bottom plate or the reinforcing member fasteners are lower than the inner plate surface of the chassis bottom plate.
8. The chassis according to any one of claims 1-7, characterized in that, The chassis further includes a roller assembly, the roller assembly includes a roller support and a roller, the roller support is fixed to the reinforcing member, and the roller is rotatably arranged on the roller support around its axis.
9. The chassis according to claim 8, characterized in that, The reinforcing member includes: a reinforcing member top plate, a reinforcing member bottom plate, and a reinforcing member side plate connecting the reinforcing member top plate and the reinforcing member bottom plate; wherein, the roller support is fixed to the reinforcing member bottom plate, and the reinforcing member top plate is fixed to the chassis bottom plate.
10. The chassis according to claim 9, characterized in that, The reinforcing member top plate has an opening, the roller support is located on the side of the reinforcing member bottom plate close to the reinforcing member top plate, and the reinforcing member bottom plate has a through hole for the roller to pass through.
11. The chassis according to claim 10, characterized in that, The reinforcing member further includes a connecting plate; wherein, the connecting plate is located inside the opening and the connecting plate connects two opposite reinforcing member side plates; or, the connecting plate is located outside the opening and the connecting plate connects the reinforcing member bottom plate and the reinforcing member top plate.
12. A power electronic device, characterized in that, A chassis including any one of claims 1-11.