Connecting assembly, electric control box and direct cooling unit with electric control box

Abstract

The utility model relates to the technical field of energy storage systems, in particular to a connecting assembly, an electric control box and a direct cooling unit with the same, and the connecting assembly is used for connecting the electric control box and a direct cooling unit and comprises a connecting piece arranged on the electric control box; the mounting piece is arranged in an inner cavity of a shell of the direct cooling machine, a plug-in port is formed in the wall face of the shell, and the connecting piece can stretch into the shell through the plug-in port and is in lap joint with the mounting piece; and the first fastening piece is used for connecting the connecting piece and the mounting piece. According to the connecting assembly, the connecting piece arranged on the electric control box is sent into the inner cavity of the direct cooling machine through the inserting opening in an inserting mode and correspondingly matched with the mounting piece, then the first fastening piece is used for fixing, assembling is completed, the whole operation process is simple and convenient, rapid mounting and dismounting are achieved, and the operation efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application discloses a connecting assembly, an electric control box and a direct cooling unit with the same. BACKGROUND

[0002] The electric control box is an important part of the direct cooling unit, mainly responsible for controlling and regulating the operation of the system. The setting mode of the electric control box outside the direct cooling unit enables the electric control box to be pre-assembled with internal components, and then the assembled electric control box is installed on the direct cooling unit, achieving the effect of saving time and effort.

[0003] In the process of implementing the present application, the inventors found that the existing technology at least has the following technical problems: the existing direct cooling unit has a complicated and difficult process of assembling or disassembling the electric control box, resulting in low assembly or disassembly efficiency. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a connecting assembly, an electric control box and a direct cooling unit with the same, which can easily install or disassemble the electric control box from the outside of the direct cooling unit through the connecting assembly, reduce the difficulty of installation and disassembly, and improve the efficiency of installation and disassembly.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] In a first aspect, a connecting assembly for connecting an electric control box and a direct cooling unit is provided, comprising:

[0007] A connecting piece is arranged on the electric control box;

[0008] An installation piece is arranged in the inner cavity of the shell of the direct cooling unit, and a plug-in interface is arranged on the wall surface of the shell, the connecting piece can be inserted into the shell through the plug-in interface and overlapped with the installation piece;

[0009] A first fastener is used to connect the connecting piece and the installation piece.

[0010] In a feasible implementation manner, the overlapping direction of the connecting piece and the installation piece is a first direction, and the length of the plug-in interface in a second direction is equal to or greater than the length of the connecting piece in the second direction;

[0011] The first direction is perpendicular to the second direction.

[0012] In a feasible implementation manner, the plug-in interface and the installation piece are located on the same wall surface of the shell.

[0013] In an implementation, the second fastener is arranged at least partially on the electric control box, and is used to connect the electric control box and the direct cooling machine.

[0014] In an implementation, the mounting member includes a mounting portion connected to the wall of the shell, and the mounting portion overlaps the mounting member.

[0015] Alternatively, a portion of the wall of the shell is folded towards the inner cavity of the shell to form the insertion port, and the mounting member is a mounting portion formed by the folded wall of the shell.

[0016] In an implementation, the shell includes a pair of first plates arranged oppositely and a pair of second plates arranged oppositely, and the pair of first plates and the pair of second plates cooperatively form a circumferential side wall of the shell, the first plates are arranged as air inlet sides, and the electric control box is connected to the second plates.

[0017] In an implementation, the connecting member includes:

[0018] a first connecting portion connected to the electric control box;

[0019] a second connecting portion connected to the first connecting portion and overlapping the mounting member.

[0020] In an implementation, the first fastener is a pin, and / or the first fastener is a screw.

[0021] In a second aspect, an electric control box is provided, which includes at least part of the connecting assembly.

[0022] In a third aspect, a direct cooling unit is provided, which includes the electric control box and the direct cooling machine, and at least one connecting assembly.

[0023] The connecting assembly provided in the application can send the connecting member arranged on the electric control box into the inner cavity of the direct cooling machine through the insertion port in an insertion manner, and cooperatively matches the mounting member, and then is fixed by the first fastener to complete the assembly, the whole operation process is simple and convenient, realizes quick installation and disassembly, and can improve the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only belong to the embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0025] Figure 1It is a schematic view of the connection relationship between the electric control box and the direct cooling machine.

[0026] Figure 2 It is a schematic view of the internal structure of the direct cooling machine.

[0027] Figure 3 It is a schematic view of the connection relationship between the connecting piece and the mounting piece.

[0028] Figure 4 It is Figure 3 the enlarged view of part A.

[0029] Figure 5 It is Figure 3 the side view of the connecting piece.

[0030] The reference signs are as follows: 1, electric control box; 101, first side plate; 102, second side plate;

[0031] 2, direct cooling machine; 201, first plate body; 202, second plate body; 203, third plate body;

[0032] 3, connecting piece; 301, first connecting part; 302, second connecting part; 303, reinforcing rib plate;

[0033] 4, mounting piece;

[0034] 5, plug-in port;

[0035] 6, first fastener;

[0036] 7, second fastener. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] In view of the above problems, with reference to Figures 1-5 The embodiments of the present application provide a connecting assembly for connecting an electric control box 1 and a direct cooling machine 2. In an embodiment, the direct cooling machine 2 is used for heat exchange of an energy storage battery of a photovoltaic system, the electric control box 1 is arranged on one side outside the direct cooling machine 2, and the electric control box 1 is connected with the direct cooling machine 2 through the connecting assembly.

[0039] The connecting assembly comprises a connecting piece 3 arranged on the electric control box 1 and a mounting piece 4 arranged in the inner cavity of the shell of the direct cooling machine 2. The wall surface of the shell is provided with a plug-in interface 5, the connecting piece 3 can be inserted into the shell through the plug-in interface 5 and overlapped with the mounting piece 4. The connecting assembly further comprises a first fastener 6, which is used to realize the connection and fixation of the connecting piece 3 and the mounting piece 4.

[0040] The overlapping of the connecting piece 3 and the mounting piece 4 means that the connecting piece 3 is inserted into the inner cavity of the shell through the plug-in interface 5, and the electric control box 1 reaches the preset position. Then, the connecting piece 3 and the mounting piece 4 are at least partially overlapped in one direction, so that the first fastener 6 installed subsequently can be used to connect and fix the connecting piece 3 and the mounting piece 4, and the assembly of the electric control box 1 and the direct cooling machine 2 is completed. The connecting piece 3 and the mounting piece 4 are connected in an overlapping manner to form a stronger connection, thereby increasing the overall structure and stability.

[0041] The above-mentioned one direction can be a vertical direction perpendicular to the ground. When the connecting piece 3 and the mounting piece 4 are overlapped, the connecting piece 3 is located above the mounting piece 4 in the vertical direction. Of course, the connecting piece 3 can also be located below the mounting piece 4 in the vertical direction. Alternatively, the above-mentioned one direction can be a horizontal direction parallel to the ground. When the connecting piece 3 and the mounting piece 4 are overlapped, the connecting piece 3 is located on the left side or the right side of the mounting piece 4 in the horizontal direction. Preferably, the connecting piece 3 is located above the mounting piece 4 in the vertical direction when overlapping. In this arrangement, the overlapping of the connecting piece 3 and the mounting piece 4 can be realized, and the installation of the first fastener 6 is ensured. After the installation of the first fastener 6 is completed, the mounting piece 4 is used to support the connecting piece 3, thereby indirectly supporting the electric control box 1, improving the installation strength of the electric control box 1, and avoiding the damage caused by the easy separation of the electric control box 1 from the direct cooling machine 2.

[0042] In one embodiment, referring to Figure 4 , the end surface area of the mounting piece 4 used for overlapping with the connecting piece 3 is greater than the end surface area of the connecting piece 3 used for overlapping, that is, the size of the mounting piece 4 is larger than that of the connecting piece 3. In this way, after the connecting piece 3 is inserted into the inner cavity of the shell through the plug-in interface 5, the connecting piece 3 can be directly overlapped on the surface of the mounting piece 4. Even if the connecting piece 3 moves relative to the mounting piece 4 after being inserted, at least most of the connecting piece 3 can still be overlapped with the mounting piece 4. The mounting piece 4 is used to limit the connecting piece 3, thereby avoiding the dislocation and separation of the connecting piece 3 from the mounting piece due to excessive movement, and facilitating the subsequent installation of the first fastener 6. At the same time, after the installation of the first fastener 6 is completed, the mounting piece 4 can provide greater support to the connecting piece 3, thereby further improving the connection strength of the connecting piece 3 and the mounting piece 4.

[0043] In a feasible implementation manner, referring to Figure 3 , Figure 4The overlapping direction of the connecting piece 3 and the mounting piece 4 is a first direction, and the length of the plug-in interface 5 in a second direction is equal to or greater than the length of the connecting piece 3 in the second direction, wherein the first direction is perpendicular to the second direction.

[0044] Taking the vertical overlapping of the connecting piece 3 and the mounting piece 4 as an example, the first direction is a direction perpendicular to the ground, and the second direction is a direction parallel to the ground. Both the plug-in interface 5 and the connecting piece 3 have a certain length in the second direction. The length of the plug-in interface 5 is set to be equal to or greater than the length of the connecting piece 3. For example, the length of the plug-in interface 5 is equal to the length of the connecting piece 3, which is suitable for installation of the electric control box 1. After the position of the plug-in interface 5 is locked by the operator, the connecting piece 3 is directly inserted into the plug-in interface 5. Due to the size limitation of the plug-in interface 5, the connecting piece 3 can only move along the insertion direction of the connecting piece 3, and cannot move relative to the shell of the direct-cooling machine 2 along the length direction of the connecting piece 3. After the connecting piece 3 enters the shell, it is directly matched with the mounting piece 4, which facilitates the direct installation of the first fastener 6. The operation of positioning the connecting piece 3 in the shell and then aligning the connecting piece 3 with the mounting piece 4 is removed, so that the electric control box 1 is positioned quickly and rapidly, and the installation operation of the electric control box 1 is simple.

[0045] Alternatively, the length of the plug-in interface 5 is greater than the length of the connecting piece 3. It can be understood that the relatively large length of the plug-in interface 5 means that the length of the plug-in interface 5 is increased by a reasonable size based on the length of the connecting piece 3. The plug-in interface 5 can still effectively limit the connecting piece 3. By increasing the length of the plug-in interface 5, the friction generated when the connecting piece 3 extends into the shell from the plug-in interface 5 and the error generated when the connecting piece 3 is aligned with the plug-in interface 5 during manual operation of the operator are overcome, so that the operator can quickly place the connecting piece 3 into the plug-in interface 5.

[0046] In addition to the above two setting methods, the structure of the plug-in interface 5 can also be designed. For example, the port of the plug-in interface 5 on the outer wall surface of the shell is a first port, the port of the plug-in interface 5 on the inner wall surface of the shell is a second port, the first port is greater than the length of the connecting piece 3, the second port is equal to the length of the connecting piece 3, the length of the channel between the first port and the second port gradually decreases along the second direction, and the connecting piece 3 can extend into the channel from the first port and extend into the inner cavity of the shell from the second port under the guidance of the channel, thereby limiting the length direction of the connecting piece 3 by the second port. In this way, not only is it convenient for the connecting piece 3 to be inserted into the shell, but also the connecting piece 3 can be limited after being inserted into the shell.

[0047] In addition, the plug-in interface 5 has a width in the first direction in addition to the length in the second direction described above. Preferably, the width of the plug-in interface 5 in the first direction is equal to or slightly greater than the width of the connecting piece 3 in the first direction. After the connecting piece 3 is placed in the shell, the connecting piece 3 is positioned as much as possible in the first direction through the plug-in interface 5, further avoiding dislocation of the connecting piece 3 and separation from the mounting piece 4, and ensuring convenient installation of the subsequent first fastener 6.

[0048] In a feasible implementation, referring to Figure 3 , in order to save materials and for simple installation, the plug-in interface 5 and the mounting piece 4 are located on the same wall of the shell. After the connecting piece 3 is inserted into the shell by the plug-in interface 5, the connecting piece 3 can directly match the mounting piece 4. The size of the connecting piece 3 and the mounting piece 4 is reduced, the occupied area of the connecting piece 3 and the mounting piece 4 in the shell is reduced, the layout in the shell of the direct-cooling machine 2 is more reasonable, and the influence of the connecting piece 3 and the mounting piece 4 on the internal structure of the shell of the direct-cooling machine 2 is reduced.

[0049] In a feasible implementation, referring to Figure 3 、 Figure 5 , after the connecting piece 3 and the mounting piece 4 are used to connect the electric control box 1 and the direct-cooling machine 2, in order to further enhance the connection strength of the electric control box 1 and the direct-cooling machine 2, a second fastener 7 is further included. The second fastener 7 is arranged at least partially on the electric control box 1. The second fastener 7 is used to connect the electric control box 1 and the direct-cooling machine 2.

[0050] In a specific embodiment, the second fastener 7 is a long bolt or a long screw. The long screw is arranged along the insertion direction of the connecting piece 3. The screw penetrates the wall of the box body of the electric control box 1. A screw hole is pre-formed on the outer wall of the direct-cooling machine 2. The screw hole matches the screw. The screw is used to further fix the outer wall of the electric control box 1 and the outer wall of the direct-cooling machine 2, and to improve the connection strength of the two. In another specific embodiment, the second fastener 7 includes two connecting plates respectively fixed on the outer wall of the electric control box 1 and the outer wall of the direct-cooling machine 2. After the electric control box 1 and the direct-cooling machine 2 are assembled, the two connecting plates can at least partially overlap. Screw holes are pre-formed on the two connecting plates. The two connecting plates are fixed by screws.

[0051] It can be understood that, according to the connection strength requirement of the electric control box 1 and the direct-cooling machine 2, multiple second fasteners 7 are arranged on the electric control box 1 and the direct-cooling machine 2. The multiple second fasteners 7 are arranged substantially uniformly to achieve relatively uniform connection and fixation of each part. Similarly, the connecting assembly can be provided with multiple second fasteners 7 to meet the connection strength requirement of the electric control box 1 and the direct-cooling machine 2.

[0052] In a feasible implementation, referring to Figure 4 、 Figure 5The mounting member 4 includes a mounting portion connected to the shell wall surface, and the mounting portion is overlapped with the mounting member 4. The mounting portion includes a mounting plate arranged in the shell inner cavity, and the mounting plate is fixed to the shell inner wall by welding or foot bolt connection, and the mounting plate is used as an overlapping structure to overlap with the connecting member 3. In this way, the mounting plate can be made of a material different from the shell, for example, a material with higher strength than the shell or a material with lower price than the shell. At the same time, the mounting plate can be selected according to actual needs, for example, the size of the mounting plate is much larger than the size of the plug-in port 5 and the size of the connecting member 3, so that the mounting plate can provide higher support strength, and at the same time, the plug-in port 5 and the connecting member 3 can be kept in a relatively small size, avoiding the influence of the larger plug-in port 5 on the shell wall surface of the direct cooling machine 2 on the performance of the direct cooling machine 2.

[0053] In another possible implementation, in addition to the above-mentioned separate arrangement of the mounting plate and the like to form the mounting portion, the mounting member 4 can also be formed by folding part of the shell wall surface in the shell inner cavity direction to form the plug-in port 5. Specifically, the shell wall surface of the direct cooling machine 2 is pre-set with a plug-in port 5 area, which is cut in three directions. After cutting, the connection part that is not cut in another direction is used as a rotating shaft, and the shell wall surface is bent in the shell inner cavity direction. After bending, a plug-in port 5 can be formed on the shell wall surface, and the shell wall surface bent in the inner cavity direction forms a mounting portion, which is used to overlap with the connecting member 3. In this way, the mounting portion does not need to be separately arranged relative to the shell. During the process of machining the shell wall surface to form the plug-in port 5, the mounting portion is simultaneously formed, which reduces the processing procedures of the mounting member 4, improves the machining efficiency, and saves the consumption materials. Moreover, the mounting portion and the shell are an integral structure, and the mounting portion does not need to be connected to the shell inner wall by welding or bolt connection, which ensures the integrity of the shell and avoids the deformation of the shell.

[0054] In a possible implementation, referring to Figure 1 , Figure 2 , Figure 3The shell of the direct cooling machine 2 comprises a pair of first plate bodies 201 arranged opposite to each other and a pair of second plate bodies 202 arranged opposite to each other. The pair of first plate bodies 201 and the pair of second plate bodies 202 cooperatively form the circumferential side wall of the shell. The first plate body 201 is arranged as the air inlet side. The electric control box 1 is connected to the second plate body 202. In addition, the shell further comprises a pair of third plate bodies 203 arranged opposite to each other. The pair of third plate bodies 203 are respectively located at the two ends of the circumferential side wall of the shell. It can be understood that the first plate body 201 generally refers to the length direction of the direct cooling machine 2, and the second plate body 202 generally refers to the width direction of the direct cooling machine 2. The electric control box 1 is arranged on the second plate body 202, so that the electric control box 1 mounted on the direct cooling machine 2 is located on a different wall surface from the air inlet side of the direct cooling machine 2, thereby avoiding the electric control box 1 from affecting the normal operation of the air inlet side of the direct cooling machine 2. The length and width of the electric control box 1 on the second plate body 202 are preferably less than or equal to the second plate body 202. For example, the size of the box body of the electric control box 1 is designed to be approximately equal to the second plate body 202 in length and width, so that the electric control box 1 and the direct cooling machine 2 form a rectangular structure with a substantially uniform outer contour after assembly, thereby facilitating the arrangement of the two to improve the space utilization rate and the overall assembly aesthetics. In addition, referring to Figure 2 According to the structural layout in the direct cooling machine 2, the electric control box 1 is selectively mounted on the side that does not affect the structural layout in the direct cooling machine 2.

[0055] Specifically, the electric control box 1 is a box body structure having a frame structure surrounded by four first side plates 101. Two second side plates 102 are respectively connected to the two ends of the frame structure. The four first side plates 101 and the two second side plates 102 cooperatively form a placement space for accommodating components.

[0056] In one embodiment, referring to Figure 3 One of the second side plates 102 of the electric control box 1 is arranged to form a mounting surface with the second plate body 202 of the shell of the direct cooling machine 2. The second side plate 102 of the electric control box 1 is provided with a connecting piece 3. The second plate body 202 of the direct cooling machine 2 is provided with a mounting piece 4. After the electric control box 1 and the direct cooling machine 2 are assembled, the second side plate 102 provided with the connecting piece 3 and the second plate body 202 provided with the mounting piece 4 are tightly attached to each other, thereby realizing the tight attachment of the electric control box 1 and the direct cooling machine 2 after assembly, and enhancing the connection stability and aesthetics of the electric control box 1 and the direct cooling machine 2.

[0057] In a feasible implementation manner, referring to Figure 4The connecting piece 3 comprises a first connecting part 301 for connecting with the electric control box 1, and a second connecting part 302 connected with the first connecting part 301 and overlapped on the mounting part 4. The first connecting part 301 is a plate structure, which is fixed on the second side plate 102 by welding or other connecting methods. The first connecting part 301 is preferably parallel to the second side plate 102 of the electric control box 1, so as to increase the contact area between the first connecting part 301 and the second side plate 102, and further increase the connecting strength. The second connecting part 302 is another plate structure, which is preferably perpendicular to the first connecting part 301, so that the first connecting part 301 and the second connecting part 302 form an L-shaped structure. After the connecting piece 3 is placed into the shell cavity through the plug-in port 5, the second connecting part 302 is parallel to the mounting part, so that the two are overlapped. On the basis of the above, the connecting piece 3 further comprises a pair of reinforcing rib plates 303, which are triangular structures. The two straight edges of the reinforcing rib plate 303 are connected with the first connecting part 301 and the second connecting part 302 respectively. The reinforcing rib plate 303 further improves the connecting strength between the second connecting part 302 and the first connecting part 301, so as to improve the connecting strength between the mounting part and the first connecting part 301 through the second connecting part 302.

[0058] In an implementation, the first fastener 6 is a pin; and / or the first fastener 6 is a screw. Figure 4

[0059] In an embodiment, the first fastener 6 is a pin arranged on the second connecting part 302 and the mounting part. A through hole is pre-formed on the second connecting part 302 and the mounting part for the pin to pass through. After the connecting piece 3 is placed into the plug-in port 5 and the electric control box 1 reaches the preset position, the through hole on the second connecting part 302 is completely matched with the through hole on the mounting part or has a small error under the limiting effect of the plug-in port 5 on the connecting piece 3. The operator only needs to determine the positions of the second connecting part 302 and the mounting part, and adjust the position of the electric control box 1 when there is an error between the two through holes, so as to completely match the two through holes. Then, the pin is inserted into the two through holes to realize the connection. In this setting, the pin is directly inserted to realize the connection between the electric control box 1 and the direct cooling machine 2. For the complex environment in the direct cooling machine 2, the complex structure inside the direct cooling machine 2 has little effect on the insertion operation of the operator, so the operator can easily and quickly install the first fastener 6. The pin is used for positioning the second connecting part 302, i.e. positioning the electric control box 1. After the pin is installed, the electric control box 1 is ensured to be in the preset position and cannot be displaced. Thus, the screw holes pre-formed on the electric control box 1 and the direct cooling machine 2 for the second fastener 7 to pass through are matched with each other. The operator does not need to position the screw holes for the second fastener 7 to pass through again, which reduces the operation steps and improves the installation efficiency. The second fastener 7 is used to improve the connecting strength between the electric control box 1 and the direct cooling machine 2.​

[0060] In another embodiment, the first fastener 6 can be a screw instead of a pin, and a screw hole is preformed on the second connecting part 302 and the mounting part for the screw to pass through. After the connecting piece 3 is inserted into the insertion port 5 and the electric control box 1 reaches the predetermined position, the screw hole on the second connecting part 302 and the screw hole on the mounting part are completely matched or have a small error under the limiting action of the insertion port 5 on the connecting piece 3. The operator only needs to determine the positions of the second connecting part 302 and the mounting part, and it is relatively easy to adjust the position of the electric control box 1 when there is an error between the two screw holes, so as to completely match the two screw holes, and then the screw is inserted into the two screw holes to achieve connection. The difference between this setting and the above embodiment is that the screw nut fixing mode is used, and the screw as a connecting structure not only realizes the positioning of the electric control box 1 and the direct cooling machine 2, but also realizes the connection and fixing of the electric control box 1 and the direct cooling machine 2. In some working conditions, for example, the connection strength requirement of the electric control box 1 and the direct cooling machine 2 is low, or only the screw connection can meet the connection strength requirement of the electric control box 1 and the direct cooling machine 2, the second fastener 7 does not need to be arranged on the electric control box 1. The removal of the second fastener 7 keeps the outer wall surface of the electric control box 1 and the direct cooling machine 2 intact, and the assembly operation is completed after the installation of the first fastener 6, which saves the time consumed in installing the second fastener 7 and improves the installation efficiency.

[0061] In another embodiment, the first fastener 6 can be a screw instead of a pin, and a screw hole is preformed on the second connecting part 302 and the mounting part for the screw to pass through. After the connecting piece 3 is inserted into the insertion port 5 and the electric control box 1 reaches the predetermined position, the screw hole on the second connecting part 302 and the screw hole on the mounting part are completely matched or have a small error under the limiting action of the insertion port 5 on the connecting piece 3. The operator only needs to determine the positions of the second connecting part 302 and the mounting part, and it is relatively easy to adjust the position of the electric control box 1 when there is an error between the two screw holes, so as to completely match the two screw holes, and then the screw is inserted into the two screw holes to achieve connection. The difference between this setting and the above embodiment is that the screw nut fixing mode is used, and the screw as a connecting structure not only realizes the positioning of the electric control box 1 and the direct cooling machine 2, but also realizes the connection and fixing of the electric control box 1 and the direct cooling machine 2. In some working conditions, for example, the connection strength requirement of the electric control box 1 and the direct cooling machine 2 is low, or only the screw connection can meet the connection strength requirement of the electric control box 1 and the direct cooling machine 2, the second fastener 7 does not need to be arranged on the electric control box 1. The removal of the second fastener 7 keeps the outer wall surface of the electric control box 1 and the direct cooling machine 2 intact, and the assembly operation is completed after the installation of the first fastener 6, which saves the time consumed in installing the second fastener 7 and improves the installation efficiency.

[0062] In another embodiment, the first fastener 6 can be a screw instead of a pin, and a screw hole is preformed on the second connecting part 302 and the mounting part for the screw to pass through. After the connecting piece 3 is inserted into the insertion port 5 and the electric control box 1 reaches the predetermined position, the screw hole on the second connecting part 302 and the screw hole on the mounting part are completely matched or have a small error under the limiting action of the insertion port 5 on the connecting piece 3. The operator only needs to determine the positions of the second connecting part 302 and the mounting part, and it is relatively easy to adjust the position of the electric control box 1 when there is an error between the two screw holes, so as to completely match the two screw holes, and then the screw is inserted into the two screw holes to achieve connection. The difference between this setting and the above embodiment is that the screw nut fixing mode is used, and the screw as a connecting structure not only realizes the positioning of the electric control box 1 and the direct cooling machine 2, but also realizes the connection and fixing of the electric control box 1 and the direct cooling machine 2. In some working conditions, for example, the connection strength requirement of the electric control box 1 and the direct cooling machine 2 is low, or only the screw connection can meet the connection strength requirement of the electric control box 1 and the direct cooling machine 2, the second fastener 7 does not need to be arranged on the electric control box 1. The removal of the second fastener 7 keeps the outer wall surface of the electric control box 1 and the direct cooling machine 2 intact, and the assembly operation is completed after the installation of the first fastener 6, which saves the time consumed in installing the second fastener 7 and improves the installation efficiency.

[0063] In another embodiment, the first fastener 6 can be a screw instead of a pin, and a screw hole is preformed on the second connecting part 302 and the mounting part for the screw to pass through. After the connecting piece 3 is inserted into the insertion port 5 and the electric control box 1 reaches the predetermined position, the screw hole on the second connecting part 302 and the screw hole on the mounting part are completely matched or have a small error under the limiting action of the insertion port 5 on the connecting piece 3. The operator only needs to determine the positions of the second connecting part 302 and the mounting part, and it is relatively easy to adjust the position of the electric control box 1 when there is an error between the two screw holes, so as to completely match the two screw holes, and then the screw is inserted into the two screw holes to achieve connection. The difference between this setting and the above embodiment is that the screw nut fixing mode is used, and the screw as a connecting structure not only realizes the positioning of the electric control box 1 and the direct cooling machine 2, but also realizes the connection and fixing of the electric control box 1 and the direct cooling machine 2. In some working conditions, for example, the connection strength requirement of the electric control box 1 and the direct cooling machine 2 is low, or only the screw connection can meet the connection strength requirement of the electric control box 1 and the direct cooling machine 2, the second fastener 7 does not need to be arranged on the electric control box 1. The removal of the second fastener 7 keeps the outer wall surface of the electric control box 1 and the direct cooling machine 2 intact, and the assembly operation is completed after the installation of the first fastener 6, which saves the time consumed in installing the second fastener 7 and improves the installation efficiency.

[0064] Finally, it should be noted that the terms "first" and "second", and the like, merely denote different categories, and do not imply a physical or an chronological precedence.

[0065] Also, the term "comprising", "including", "containing", or "having" and the like, are inclusive and do not exclude additional non-specified elements or method steps. The inclusion of a listing of elements or method steps does not preclude additional elements or method steps not explicitly listed, or additional elements or method steps inherent to the disclosure.

[0066] The above description of disclosed embodiments provides enabling concepts for practicing or using the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection assembly, characterized in that The utility model relates to a connecting assembly for connecting an electric control box and a direct cooling machine, comprising: a connecting piece arranged on the electric control box; a mounting piece arranged in the inner cavity of the shell of the direct cooling machine, the wall surface of the shell being provided with a plug-in interface, the connecting piece being capable of extending into the shell through the plug-in interface and being overlapped with the mounting piece; a first fastener for connecting the connecting piece and the mounting piece.

2. The connection assembly of claim 1, wherein, The overlapping direction of the connecting piece and the mounting piece is a first direction, and the length of the plug-in interface in a second direction is equal to or greater than the length of the connecting piece in the second direction. The first direction is perpendicular to the second direction.

3. The connection assembly of claim 1, wherein, The plug-in interface and the mounting piece are located on the same wall surface of the shell.

4. The connection assembly of claim 1, wherein, Further comprising a second fastener arranged at least partially on the electric control box, the second fastener being used for connecting the electric control box and the direct cooling machine.

5. The connection assembly of claim 1, wherein, The mounting piece comprises a mounting portion connected to the wall surface of the shell, and the mounting portion is overlapped with the mounting piece. Alternatively, a portion of the wall surface of the shell is folded in the direction of the inner cavity of the shell to form the plug-in interface, and the mounting piece is a mounting portion formed by the folded wall surface of the shell.

6. The connection assembly of claim 1, wherein, The shell of the direct cooling machine comprises a pair of first plate bodies arranged oppositely and a pair of second plate bodies arranged oppositely, and a circumferential side wall of the shell is formed by the pair of first plate bodies and the pair of second plate bodies, the first plate bodies are arranged as air inlet sides, and the electric control box is connected to the second plate bodies.

7. The connection assembly of claim 1, wherein, The connecting piece comprises: a first connecting portion connected to the electric control box; a second connecting portion connected to the first connecting portion and overlapped with the mounting piece.

8. The connection assembly of claim 1, wherein, The first fastener is a pin; and / or the first fastener is a screw.

9. An electric control box characterized by comprising: At least part of the connecting assembly as claimed in any one of claims 1-8.

10. A direct expansion unit, characterized by, The electric control box and the direct cooling machine as described above, and at least one connecting assembly as claimed in any one of claims 1-8.

Images