Power module fixing device

Abstract

The utility model belongs to the technical field of power equipment, and discloses a power module fixing device, which is characterized in that an inner cavity is arranged at the bottom of a shell, a first notch communicated with the inner cavity is arranged at the bottom of the left side wall of the shell, a bottom frame is fixed at the bottom of the inner cavity of the shell, and a cross beam is fixed at the rear side wall of the inner cavity of the shell; the right end support comprises a second front side plate and a second top plate, the second front side plate is installed on the right side of the bottom frame, the second top plate is installed on the cross beam, and a limiting baffle is installed at the right end of the second front side plate. A connecting block is installed on the limiting baffle, and the power module is provided with a second screw joint plate corresponding to the first screw joint plate and a connecting groove corresponding to the connecting block. The utility model has the beneficial effects that the power supply module can be accurately positioned and fixed at a preset position, and the stability of the module in the installation and transportation process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, in particular to a fixing device for a power module. Background Art

[0002] In the past, for inverter power products, full enclosure or suspension schemes were often used for charging modules. When using the full enclosure scheme, the overall module needs to be enclosed, resulting in a relatively large overall size. The suspension scheme mainly suspends key parts, and the input and output terminals need to be inserted separately, which is inconvenient for installation. In addition, the suspension scheme has relatively strict requirements for product alignment, and uneven stress may cause the module to tilt. The suspension scheme cannot guarantee the protection effect during transportation, and short-circuit fires are also likely to occur due to accidental contact with assembly tools during the assembly process. The full enclosure scheme has a relatively high overall cost, wastes the area in the middle that does not need to be enclosed, and at the same time, the ventilation volume at the output end is affected.

[0003] Therefore, it is necessary to provide a fixing device for a power module, which provides precise positioning for the installation of the power module, fixes it in a predetermined position, can be operated at the customer site, fixes the module as a whole, ensures the stability of the module during installation and transportation, and has good heat dissipation performance. Summary of the Utility Model

[0004] The utility model discloses a fixing device for a power module, which can effectively solve the technical problems involved in the background art.

[0005] To achieve the above object, the technical solution of the utility model is as follows:

[0006] A fixing device for a power module includes a housing, a chassis, a left end bracket, a right end bracket and a cross beam. An inner cavity is provided at the bottom of the housing. A first notch communicating with the inner cavity is provided at the bottom of the left side wall of the housing. A left baffle is detachably installed at the first notch. The chassis is fixed at the bottom of the inner cavity of the housing and is arranged corresponding to the first notch. The cross beam is fixed on the rear side wall of the inner cavity of the housing. The left end bracket includes a first front side plate and a first top plate fixed at the top of the first front side plate. The first front side plate is installed on the left side of the chassis, and the first top plate is installed on the cross beam. A first screw connection plate protrudes upward on the left side of the first top plate. The right end bracket includes a second front side plate and a second top plate fixed at the top of the second front side plate. The second front side plate is installed on the right side of the chassis, and the second top plate is installed on the cross beam. A limit baffle is installed at the right end of the second front side plate, and a connection block is installed on the limit baffle. A second screw connection plate corresponding to the first screw connection plate is provided at the top left of the power module. A handle is provided on the left side of the power module, and a connection groove corresponding to the connection block is provided on the right side of the power module.

[0007] Use the left bracket to guide and limit the power module. The bracket adopts a sheet metal structure, in which the bending structure is welded, which effectively improves the collision resistance. At the same time, the limit accuracy can be controlled within 1mm. Use the right bracket to limit the power module and insert the AC terminal at the same time. At the same time, the hot air flow is exported from most of the opening area to reduce the internal temperature of the power module. Use the bottom bracket to support the power module, the left bracket, and the right bracket. While raising the overall height, reserve the installation holes of the left bracket and the right bracket to ensure the overall installation accuracy of the power module.

[0008] As a preferred improvement of the utility model: the portion of the shell located above the inner cavity is installed with an electrical component connected to the power module, and the bottom of the shell is provided with a support foot or a pulley.

[0009] As a preferred improvement of the utility model: the front side of the shell is provided with an opening communicating with the inner cavity, a door is provided at the opening, and the shell is provided with a lifting opening.

[0010] As a preferred improvement of the utility model: a second notch communicating with the inner cavity is provided at the bottom of the right side wall of the shell, a right baffle is installed at the second notch, and the left baffle and the right baffle are both provided with multiple heat dissipation ports, and a rain shield arranged downwardly tilted is provided at the heat dissipation ports.

[0011] As a preferred improvement of the present invention: the first front side plate is connected to the base frame by screws, and the first top plate is connected to the crossbeam by screws.

[0012] As a preferred improvement of the present invention: the rear side surface of the first front side plate and the bottom side surface of the first top plate are both provided with an elastic rubber layer.

[0013] As a preferred improvement of the utility model: the power module is provided with a circuit structure inside, the connection slot is provided with a first socket, the first socket is connected to the circuit structure, the connection block is provided with a second socket, and the first socket and the second socket are correspondingly plugged.

[0014] As a preferred improvement of the utility model: a positioning rod is provided on the left side of the connecting block, and a positioning hole matching the positioning rod is provided in the connecting groove.

[0015] As a preferred improvement of the present utility model: ventilation holes are provided on the left and right sides of the power module, the ventilation holes are connected to the inside of the power module, and a circuit structure is provided inside the power module.

[0016] As a preferred improvement of the present utility model: the crossbeam includes a left beam, a middle beam and a right beam connected in sequence, the middle beam is located at the front side of the left beam and the right beam, the left beam and the right beam are fixed on the outer shell, and the first top plate and the second top plate are installed on the middle beam.

[0017] The beneficial effects of the present utility model are as follows:

[0018] Both the left-end bracket and the right-end bracket are provided with guiding and limiting structures. During the process of installing the power module, the power module is guided and limited through the relevant structures to ensure the installation accuracy of the output terminals of the power module and the mating terminals. Four M4 screws are used to install and fix both the left-end bracket and the right-end bracket, ensuring the stability and reliability of the overall structure. During the installation and movement processes, the stability of the power module can be ensured, and the overall strength inside the chassis can be guaranteed. The middle part of the power module is not surrounded by relevant structures, saving the overall cost and reducing the possibility of the outer shell of the power module being scratched during the installation process. The positioning effect of this device is good. Both the left and right end brackets can be positioned, the installation is convenient, saving the installation time of the overall process, and the installation is firm, ensuring the stability of the module and the whole machine. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where:

[0020] Figure 1 is a schematic diagram of a power module fixing device of the present utility model;

[0021] Figure 2 is a schematic diagram of the internal structure of the outer shell of the present utility model;

[0022] Figure 3 is a side view of the outer shell of the present utility model;

[0023] Figure 4 is a schematic diagram of the power module fixing of the present utility model;

[0024] Figure 5 is an exploded view of the present utility model;

[0025] Figure 6 is a rear view of the exploded present utility model;

[0026] Figure 7 is a schematic diagram of the power module structure of the present utility model;

[0027] Figure 8 is a schematic diagram of the positioning rod structure of the present utility model.

[0028] In the figure: 100 - housing, 110 - left side wall, 111 - left baffle, 120 - right side wall, 121 - right baffle, 130 - lifting opening, 200 - chassis, 300 - left end bracket, 310 - first front side plate, 320 - first top plate, 321 - first screwing plate, 400 - right end bracket, 410 - second front side plate, 420 - second top plate, 430 - limit baffle, 431 - connecting block, 4311 - positioning rod, 500 - cross beam, 510 - left beam, 520 - middle beam, 530 - right beam, 600 - power module, 610 - second screwing plate, 620 - handle, 630 - connecting groove, 640 - ventilation opening. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Please refer to Figure 1 As shown, the present utility model provides a fixing device for a power module, including a housing 100, a chassis 200, a left end bracket 300, a right end bracket 400, and a cross beam 500. The housing 100 can be divided into an upper part and a lower part. The lower part houses the power module 600, and the upper part houses other electrical components. The power module 600 is connected to the electrical components. The power module 600 is placed inside the housing 100 to provide a protective effect, and the chassis 200, the left end bracket 300, the right end bracket 400, and the cross beam 500 limit and fix the power module.

[0035] Please refer to Figures 2 - 3 As shown, the bottom of the housing 100 is provided with an inner cavity. The bottom of the left side wall 110 of the housing 100 is provided with a first notch communicating with the inner cavity. A left baffle 111 is detachably installed at the first notch. The chassis 200 is fixed to the bottom of the inner cavity of the housing 100, and the chassis 200 is arranged corresponding to the first notch. The cross beam 500 is fixed to the rear side wall of the inner cavity of the housing 100. The left baffle 111 is generally fixed by screws or connected by a buckle. Open the left baffle 111 and then push the power module 600 into the inner cavity. The chassis 200 supports the bottom of the power module 600. The left end bracket 300 and the right end bracket 400 limit and fix the left and right sides, the front side, and the top of the power module 600. The cross beam 500 limits the rear side of the power module 600 and also has the effect of fixing the left end bracket 300 and the right end bracket 400. After installing the chassis 200, the left end bracket 300, the right end bracket 400, and the cross beam 500, then push the power module 600 into the housing 100 from the left side. It is also possible to first fix the chassis 200 and the cross beam 500, then place the power module 600, and then fix the left end bracket 300 and the right end bracket 400. The former method is simple and efficient, and the latter method is more troublesome. The user can choose by himself.

[0036] Please refer to Figures 4 - 8As shown, the left-end bracket 300 includes a first front side plate 310 and a first top plate 320 fixed to the top end of the first front side plate 310 (a rear side plate can also be provided to limit the power module). The first front side plate 310 is installed on the left side of the chassis 200, and the first top plate 320 is installed on the cross beam 500. A first screw connection plate 321 protrudes upward on the left side of the first top plate 320. The right-end bracket 400 includes a second front side plate 410 and a second top plate 420 fixed to the top end of the second front side plate 410. The second front side plate 410 is installed on the right side of the chassis 200, and the second top plate 420 is installed on the cross beam 500. A limit baffle 430 is installed at the right end of the second front side plate 410, and a connection block 431 is installed on the limit baffle 430. A second screw connection plate 610 corresponding to the first screw connection plate 321 is provided at the top left of the power module 600. A handle 620 is provided on the left side of the power module 600, and a connection groove 630 corresponding to the connection block 431 is provided on the right side of the power module 600. Specifically, first install the chassis 200 and the cross beam 500, using welding or screwing. The chassis 200 is in the shape of a hollow or solid cuboid with a certain height, which is convenient for pushing in the power module 600 and also provides a certain protection effect for the power supply. The cross beam 500 is made of a metal plate. The chassis 200 and the cross beam 500 are provided with multiple screw holes, and then install the left-end bracket 300 and the right-end bracket 400. Open the left baffle 111 and push the power module 600 in from the left side. The shapes of the left-end bracket 300 and the right-end bracket 400 correspond to the outer shell of the power module 600, and the gap between them is 1-5 mm. During the pushing process, the first screw connection plate 321 and the second screw connection plate 610 abut against each other to prevent the power module 600 from moving further. At this time, the connection groove 630 and the connection block 431 are correspondingly connected, and then install screws to fix the first screw connection plate 321 and the second screw connection plate 610. Then install the left baffle 111, and the fixing of the power module 600 is completed.

[0037] As an implementation manner, electrical components connected to the power module 600 are installed on the part of the outer shell 100 above the inner cavity. The bottom of the outer shell 100 is provided with feet or pulleys for convenient support and movement. An opening communicating with the inner cavity is provided on the front side of the outer shell 100, and a door is provided at the opening for convenient maintenance or installation of other electrical components. A lifting opening 130 is provided on the outer shell 100 for convenient movement of the outer shell 100. A second notch communicating with the inner cavity is provided at the bottom of the right side wall 120 of the outer shell 100, and a right baffle 121 is installed at the second notch. The left baffle 111 and the right baffle 121 are both provided with a plurality of heat dissipation openings, and rain shields are provided at the heat dissipation openings and are inclined downward. Ventilation on both the left and right sides is convenient for cooling the power module 600.

[0038] As an implementation manner, the first front side plate 310 is connected to the chassis 200 by screws, the first top plate 320 is connected to the cross beam 500 by screws, elastic rubber layers are provided on the rear side surface of the first front side plate 310 and the bottom side surface of the first top plate 320. The rubber can not only protect the power supply module 600, but also enable the power supply module 600 to be in closer contact with the left end bracket. The right end bracket is correspondingly provided with an elastic rubber layer.

[0039] As an implementation manner, a circuit structure is provided inside the power supply module 600. A first socket is provided in the connection groove 630, and the first socket is connected to the circuit structure. A second socket is provided on the connection block 431. The first socket and the second socket are correspondingly plugged. The second socket is connected to other electrical components, which facilitates the connection of the circuit. A positioning rod 4311 is provided on the left side of the connection block 431, and a positioning hole matching the positioning rod 4311 is provided in the connection groove 630. The positioning rod should be long to play a role in guiding and limiting, avoiding the excessive rightward movement of the power supply module, thereby damaging the first socket and the second socket and causing problems such as short circuits. Ventilation openings are provided on both the left side and the right side of the power supply module 600. The ventilation openings are communicated with the inside of the power supply module 600, and a circuit structure is arranged inside the power supply module 600 to improve the heat dissipation effect of the device.

[0040] As an implementation manner, the cross beam 500 includes a left beam 510, a middle beam 520 and a right beam 530 which are connected in sequence. The middle beam 520 is located in front of the left beam 510 and the right beam 530. The left beam 510 and the right beam 530 are fixed on the housing 100, and the first top plate 320 and the second top plate 420 are installed on the middle beam 520 to prevent the power supply module 600 from contacting the inner wall of the housing 100.

[0041] Although the embodiments of the present invention have been disclosed as above, they are not limited to only the applications listed in the description and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples shown and described here.

Claims

1. A power module fixing device, characterized in that: It includes a housing (100), a chassis (200), a left-end bracket (300), a right-end bracket (400) and a cross beam (500). There is an inner cavity at the bottom of the housing (100). There is a first notch communicating with the inner cavity at the bottom of the left side wall (110) of the housing (100). A left baffle (111) is detachably installed at the first notch. The chassis (200) is fixed at the bottom of the inner cavity of the housing (100). The chassis (200) is arranged corresponding to the first notch. The cross beam (500) is fixed on the rear side wall of the inner cavity of the housing (100). The left-end bracket (300) includes a first front side plate (310) and a first top plate (320) fixed at the top of the first front side plate (310). The first front side plate (310) is installed on the left side of the chassis (200). The first top plate (320) is installed on the cross beam (500). A first screw connection plate (321) protrudes upward on the left side of the first top plate (320). The right-end bracket (400) includes a second front side plate (410) and a second top plate (420) fixed at the top of the second front side plate (410). The second front side plate (410) is installed on the right side of the chassis (200). The second top plate (420) is installed on the cross beam (500). A limit baffle (430) is installed at the right end of the second front side plate (410). A connection block (431) is installed on the limit baffle (430). There is a second screw connection plate (610) corresponding to the first screw connection plate (321) at the left top of the power module (600). There is a handle (620) on the left side of the power module (600). There is a connection groove (630) corresponding to the connection block (431) on the right side of the power module (600).

2. The fixing device for a power module according to claim 1, characterized in that: Electrical components connected to the power module (600) are installed on the part of the housing (100) above the inner cavity. There are feet or pulleys at the bottom of the housing (100).

3. A fixing device for a power module according to claim 1, characterized in that: There is an opening communicating with the inner cavity on the front side of the housing (100). A door is provided at the opening. The housing (100) is provided with a lifting opening (130).

4. A fixing device for a power module according to claim 1, characterized in that: There is a second notch communicating with the inner cavity at the bottom of the right side wall (120) of the housing (100). A right baffle (121) is installed at the second notch. Both the left baffle (111) and the right baffle (121) are provided with a plurality of heat dissipation openings. Rain shields are provided at the heat dissipation openings and are inclined downward.

5. The fixing device for a power module according to claim 1, wherein: The first front side plate (310) is connected to the chassis (200) by screws. The first top plate (320) is connected to the cross beam (500) by screws.

6. The fixing device for a power module according to claim 1, characterized in that: Elastic rubber layers are provided on the rear side surface of the first front side plate (310) and the bottom side surface of the first top plate (320).

7. A fixing device for a power module according to claim 1, characterized in that: There is a circuit structure inside the power module (600). The connection groove (630) is provided with a first socket. The first socket is connected to the circuit structure. The connection block (431) is provided with a second socket. The first socket and the second socket are correspondingly plugged.

8. A fixing device for a power module according to claim 1, characterized in that: A positioning rod (4311) is provided on the left side of the connection block (431), and a positioning hole matching the positioning rod (4311) is provided in the connection groove (630).

9. A fixing device for a power module according to claim 1, characterized in that: Ventilation openings are provided on both the left and right sides of the power supply module (600). The ventilation openings are in communication with the interior of the power supply module (600), and a circuit structure is provided inside the power supply module (600).

10. A fixing device for a power module according to claim 1, characterized in that: The cross beam (500) includes a left beam (510), a middle beam (520), and a right beam (530) connected in sequence. The middle beam (520) is located in front of the left beam (510) and the right beam (530). The left beam (510) and the right beam (530) are fixed to the housing (100), and the first top plate (320) and the second top plate (420) are mounted on the middle beam (520).

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