High-pressure box of new energy bulk feed truck

Abstract

The utility model relates to a new energy bulk feed truck high-voltage box, and discloses an electric automobile high-voltage box which comprises a box body (1), a horizontally-arranged supporting beam (101) is installed in the box body (1), and the interior of the box body (1) is divided into an upper low-voltage control cavity and a lower internal control circuit installation cavity through the supporting beam (101). A low-voltage control box (102) fixed on the supporting beam (101) is installed in the low-voltage control cavity, and an internal control circuit and a circuit component (103) are installed in the internal control circuit installation cavity. According to the high-voltage box, devices in the high-voltage box are arranged in a double-layer mode, the overlook projection size of the high-voltage box is reduced, the occupied space of a vehicle is reduced, selection of installation positions on the electric vehicle is facilitated, the weathering steel is protected by three layers of coatings, the high-voltage box can meet the extreme use working conditions of the feed vehicle, and the service life of the high-voltage box is prolonged. And popularization and application of the pure electric bulk feed truck are facilitated.

Description

Technical Field

[0001] The utility model relates to a new energy bulk feed truck, in particular to a high-voltage box on a new energy bulk feed truck. Background Art

[0002] With the gradual popularization and rapid development of electric vehicles, the electrification trend of vehicles is becoming more and more obvious. Among them, the high-voltage box plays an important role in electric vehicles. It is the intermediate link between the electric motor and the power battery of the electric vehicle and is the executive mechanism for power transmission and distribution in the electric vehicle.

[0003] At present, the technical routes of high-voltage boxes include the route of integrating the internal control circuit and the low-voltage control box together, and also include the route of separating the internal control circuit and the low-voltage control box into two boxes. For example, the patent number CN20232286293 is a high-integration high-voltage box for electric vehicles, which does not integrate the low-voltage control box inside, so an additional low-voltage control box needs to be prepared. The existing technical routes of high-voltage boxes either have complex internal routes, resulting in a relatively large size of the box body and occupying a lot of space, or require two control boxes, which are not conducive to the layout of the entire power system of the electric vehicle.

[0004] In addition, the popularization and use of new energy electric vehicles in the breeding industry are still in the initial stage. Especially for bulk feed transport vehicles, since the vehicle needs to be disinfected and sterilized after transporting a trip of feed, the disinfection and sterilization process for each trip of transportation involves four times of cleaning, one time of fogging, and two times of drying. Among them, the drying center in the feed factory: the temperature is generally 70°C and lasts for more than 40 minutes; the drying room in the farm is a fuel hot air blower, with an average temperature of 70°C in winter, lasting 60 minutes after reaching the temperature, and the average temperature in summer can reach 90°C and lasts for 45 minutes; during the disinfection and sterilization process, aqueous solutions such as glutaraldehyde, potassium monopersulfate, hypochlorous acid, and calcium chloride are mainly used. Especially hypochlorous acid has strong corrosiveness. In such a harsh disinfection and sterilization process, ordinary high-voltage boxes will show serious corrosion phenomena in a very short time, the functions will be damaged, and the driving safety of the vehicle will be affected. Therefore, it is also necessary to provide a high-voltage box that can be applied to bulk feed transport vehicles. Content of the Utility Model

[0005] The utility model aims at the problems existing in the high-voltage box in the new energy bulk feed truck in the prior art, and provides a high-voltage box for a new energy bulk feed truck.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A high-voltage box for a new energy bulk feed truck, comprising a box body. Inside the box body, a horizontally arranged support beam is installed. The support beam divides the inside of the box body into an upper low-voltage control cavity and a lower internal control circuit installation cavity. In the low-voltage control cavity, a low-voltage control box fixed on the support beam is installed. In the internal control circuit installation cavity, an internal control circuit and circuit components are installed. The outer surface of the box body is provided with a coating, which includes a primer, an intermediate paint, and a topcoat. The material of the box body is weather-resistant steel.

[0008] Preferably, connecting seats are fixed on both opposite side walls inside the box body. The connecting seats on the opposite side walls are arranged in pairs opposite to each other. The support beam is in the shape of a long strip plate, and both ends are fixed on the connecting seats arranged in pairs opposite to each other by bolts. The setting of the connecting seats can realize the detachable connection of the support beam inside the box body, facilitating the disassembly and assembly of the support beam.

[0009] Preferably, a first support plate that intersects with the support beam is installed on the support beam and is used to support the edge part in the length direction of the low-voltage control box. The length direction of the first support plate is perpendicular to the length direction of the support beam. The setting of the first support plate can support the low-voltage control box in the length direction, ensuring the installation stability of the low-voltage control box.

[0010] Preferably, the first support plate is in the shape of a long strip plate and is provided with bolt holes for fixing to the support beam, and also provided with a long groove whose length direction is along the length direction of the first support plate and is used for installing the low-voltage control box. The design of the long groove can facilitate the fixing and storage of each wire inside the box body.

[0011] Preferably, a second support plate for supporting the edge part in the width direction of the low-voltage control box is also installed on the inner side wall of the box body. The length direction of the second support plate is parallel to the length direction of the support beam. A connecting strip corresponding to the second support plate is provided at the end of the low-voltage control box along the length direction and is connected by bolts. The setting of the second support plate can realize the support of the low-voltage control in the width direction, further improving the installation stability of the low-voltage control box.

[0012] Preferably, the box body includes a shell with an upward opening and a cover plate arranged at the upper opening of the shell. A ring-shaped sealing gasket is provided at the connection between the cover plate and the shell. The setting of the ring-shaped sealing gasket can ensure the sealing performance between the shell and the cover plate.

[0013] Preferably, a ring-shaped flange is provided at the upper edge of the shell. The ring-shaped flange and the edge of the cover plate are connected by a plurality of uniformly arranged screws. The ring-shaped sealing gasket is arranged between the ring-shaped flange and the edge of the cover plate, and screw holes for the screws to pass through are provided on the ring-shaped sealing gasket. The setting of the ring-shaped flange can further provide the sealing performance between the shell and the cover plate and better install the ring-shaped sealing gasket.

[0014] Preferably, a connector electrically connected to the internal control circuit is installed on the outer side wall of the box body. The connector includes a charge and discharge connector, a vehicle communication connector, a manual service disconnect (MSD), a thermal management system connector (TMS), a battery positive / negative connector, an internal communication connector, and a computer troubleshooting connector (Debug).

[0015] Due to the adoption of the above technical solutions, the utility model has remarkable technical effects:

[0016] By arranging the internal components of the high-voltage box in a double layer, the utility model reduces the top view projection size, occupies less space in the vehicle, is more conducive to the selection of the installation position on the electric vehicle, and with the weathering steel and three-layer coating protection, the high-voltage box can meet the extreme use conditions of the feed truck, which is conducive to the popularization and application of the pure electric bulk feed truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of Embodiment 1 of the utility model.

[0018] Figure 2 is Figure 1 an exploded view of

[0019] Figure 3 is Figure 1 a schematic structural diagram after removing the cover plate in

[0020] Figure 4 is Figure 3 a schematic structural diagram after removing the low-voltage control box.

[0021] Figure 5 is Figure 4 a schematic structural diagram after removing the support beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The utility model will be further described in detail below with reference to the drawings and embodiments.

[0023] Embodiment 1

[0024] An electric vehicle high-voltage box, as Figures 1 - 5 shown, includes a box body 1. A horizontally arranged support beam 101 is installed inside the box body 1. The support beam 101 divides the inside of the box body 1 into an upper low-voltage control cavity and a lower internal control circuit installation cavity. A low-voltage control box 102 fixed on the support beam 101 is installed in the low-voltage control cavity, and an internal control circuit and circuit components 103 are installed in the internal control circuit installation cavity.

[0025] In this embodiment, a structural form is adopted in which the interior of the box body 1 is divided into upper and lower layers, so as to realize the separate layout of the low-voltage control circuit and the internal control circuit. The top-down projection area is greatly reduced, and the occupied space on the vehicle is extremely reduced. By installing the low-voltage control box 102 on the support beam 101 and maintaining sufficient electrical clearance and creepage distance between the internal control circuit and the corresponding circuit components, the integration degree of the high-voltage box is further improved, and the top-down projection size of the high-voltage box is reduced by more than 20%, which is more conducive to the selection of the installation position of the high-voltage box on the electric vehicle.

[0026] In order to better fix the support beam 101 inside the box body 1, connecting seats 104 are fixed on the opposite side walls inside the box body 1. The connecting seats 104 on the opposite side walls are arranged in pairs opposite to each other. The support beam 101 is in the shape of a long strip plate, and both ends are fixed to the connecting seats 104 arranged in pairs opposite to each other by bolts. The connecting seat 104 in this embodiment is in the shape of an L-shaped plate. The horizontal plane is used to install bolts, and the vertical plane is fixed to the inner wall of the box body 1, such as by welding or other fixing methods.

[0027] In this embodiment, there are two support beams 101, which are arranged in parallel at intervals; among them, a first support plate 105 that is arranged crosswise with the support beam 101 and is used to support the edge part in the length direction of the low-voltage control box 102 is installed on the support beam 101. The length direction of the first support plate 105 is perpendicular to the length direction of the support beam 101. There are also two first support plates 105, and the two first support plates 105 extend towards the two ends of the box body 1 respectively, and respectively realize the installation and fixation of the two low-voltage control boxes 102, so that the two low-voltage control boxes 102 are arranged staggeredly, further ensuring the uniformity of the installation of each component inside the box body 1.

[0028] In order to better install the low-voltage control box 102, the first support plate 105 is designed as a long strip plate and is provided with bolt holes 106 for fixing to the support beam 101, and is also provided with a long groove 107 whose length direction is along the length direction of the second support plate 108 and is used to install the low-voltage control box 102. The design of the long groove 107 can facilitate the fixation and storage of each wire inside the electric box body.

[0029] A second support plate 108 for supporting the edge part in the width direction of the low-voltage control box 102 is also installed on the inner side wall of the box body 1. The length direction of the second support plate 108 is parallel to the length direction of the support beam 101. A connecting strip 109 corresponding to the second support plate 108 is provided at the end of the low-voltage control box 102 in the length direction and is connected by bolts.

[0030] Through the combined action of the support beam 101, the first support plate 105 and the second support plate 108, the stable installation of the low-voltage control box 102 inside the box body 1 can be realized.

[0031] In this embodiment, a connector electrically connected to the internal control circuit is installed on the outer side wall of the box body. The connector includes a charge and discharge connector 112, a vehicle communication 113, a manual service disconnect 114 (MSD), a thermal management system connector 115 (TMS), a battery positive / negative connector 116, an internal communication connector 117, and a computer troubleshooting connector 118 (Debug).

[0032] The box body 1 includes a housing 11 with an upward opening and a cover plate 12 arranged at the upper opening of the housing 11. An annular gasket 13 is provided at the connection between the cover plate 12 and the housing 11. And for the convenience of installing the annular gasket 13 and ensuring the connection sealing performance between the housing 11 and the cover plate 12, an annular flange 110 is provided at the upper edge of the housing 11. The annular flange 110 and the edge of the cover plate 12 are connected by a plurality of evenly arranged screws. The annular gasket 13 is arranged between the annular flange 110 and the edge of the cover plate 12, and screw holes 111 for the screws to pass through are provided on the annular gasket 13.

[0033] Among them, the cover plate 12 and the housing 11 are made of high-quality weathering steel, and a coating is provided on the outer surface of the box body 1. The coating includes a primer, an intermediate paint, and a topcoat, which can be respectively selected as a zinc-rich primer, an epoxy intermediate paint, and a fluorocarbon topcoat to form a three-layer spraying protection. Of course, other types of paint coatings with the same function can also be used, and paints with high temperature resistance, chemical corrosion resistance, and water resistance are used for spraying. And sandblasting treatment is carried out before spraying to clean the welding slag of the weld.

[0034] The annular gasket 13 is made of soft polytetrafluoroethylene. The high-voltage box has the characteristics of high integration, miniaturization, high temperature resistance, corrosion resistance, and water resistance, and has a super IP6K9K protection ability, enabling the high-voltage box to meet the harsh high-temperature disinfection and high-frequency cleaning working conditions of the feed truck, which is beneficial to the popularization and application of pure electric bulk feed trucks.

[0035] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0036] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A high-pressure box for a new energy bulk feed truck, comprising a box body (1), characterized in that: A horizontally arranged support beam (101) is installed inside the box body (1), and the support beam (101) divides the inside of the box body (1) into an upper low-voltage control chamber and a lower internal control circuit installation chamber. A low-voltage control box (102) fixed to the support beam (101) is installed in the low-voltage control chamber, and an internal control circuit and circuit components (103) are installed in the internal control circuit installation chamber. The outer surface of the box body (1) is provided with a coating, and the coating includes a primer, a middle layer of paint, and a topcoat. The material of the box body (1) is weathering steel.

2. A high-pressure box for a new energy bulk feed truck according to claim 1, characterized in that: Connecting seats (104) are fixed on opposite side walls in the box body (1), and the connecting seats (104) on the opposite side walls are arranged opposite to each other in pairs. The supporting beam (101) is in the shape of a long strip, and both ends are fixed to the connecting seats (104) arranged opposite to each other in pairs by bolts.

3. A high-pressure box for a new energy bulk feed truck according to claim 1, characterized in that: A first support plate (105) is mounted on the support beam (101) and is arranged crosswise with the support beam (101) to support the edge of the low-voltage control box (102) in the length direction. The length direction of the first support plate (105) is perpendicular to the length direction of the support beam (101).

4. A high-pressure box for a new energy bulk feed truck according to claim 3, characterized in that: The first support plate (105) is in the shape of a long strip and is provided with bolt holes (106) for fixing to the support beam (101), and is also provided with a long groove (107) arranged along the length direction of the first support plate (105) and used for installing the low-voltage control box (102).

5. A high-pressure box for a new energy bulk feed truck according to claim 1 or 3, characterized in that: A second support plate (108) for supporting the edge of the low-voltage control box (102) in the width direction is also mounted on the inner side wall of the box body (1); the length direction of the second support plate (108) is parallel to the length direction of the support beam (101); and a connecting strip (109) is provided at the end of the low-voltage control box (102) in the length direction and is correspondingly connected to the second support plate (108) by bolts.

6. A high-pressure box for a new energy bulk feed truck according to claim 1, characterized in that: The box body (1) comprises a shell (11) with an opening facing upward and a cover plate (12) arranged at the upper opening of the shell (11); an annular sealing gasket (13) is provided at the connection between the cover plate (12) and the shell (11).

7. A high-pressure box for a new energy bulk feed truck according to claim 6, characterized in that: An annular flange (110) is provided at the upper edge of the housing (11); the annular flange (110) is connected to the edge of the cover plate (12) via a plurality of evenly arranged screws; an annular sealing gasket (13) is provided between the annular flange (110) and the edge of the cover plate (12); and screw holes (111) for the screws to pass through are provided on the annular sealing gasket (13).

8. The high-pressure box of a new energy bulk feed truck according to claim 1 is characterized by: A connector electrically connected to the internal control circuit is mounted on the outer wall of the box body (1), and the connector includes a charge and discharge connector (112), a vehicle communication (113), a manual maintenance switch (114), a thermal management system connector (115), a battery positive / negative connector (116), an internal communication connector (117), and a computer troubleshooting connector (118).

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