Refrigerated compartment, refrigerated vehicle and manufacturing method thereof

Abstract

The present invention discloses a refrigerated compartment, a refrigerated vehicle and a method for manufacturing the same. The refrigerated compartment includes a plurality of insulation compartment panels, the insulation compartment panels include an outer panel, an inner panel and an insulation layer disposed between the outer panel and the inner panel, and at least two connectors and seals are disposed between the plurality of insulation compartment panels at mutually engaged positions, wherein at least two connectors are overlapped at one end adjacent to each other and connected together by welding, and are respectively connected to the outer panels of the two insulation compartment panels at the other end to form a corner structure between the box panels on both sides, and at least two connectors are constructed with cavities that are open to the interior of the compartment after overlapping, and the seals are filled inside the cavities. A refrigerated compartment provided according to the present invention enhances the strength and service life of the compartment, and effectively prevents rainwater from penetrating into the foaming layer and affecting the insulation performance.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerated vehicles, and more particularly to a refrigerated compartment, a refrigerated vehicle and a manufacturing method thereof. Background Art

[0002] There are three main structural types of connection structures for the side panels, roof panels, front walls and floors of refrigerated trucks on the market.

[0003] The first one, such as Figure 1 and Figure 2 As shown, when the side panels 1, top panels, and front walls are connected to the bottom panels 2, two-component adhesive bonding, hot melt connection, and threaded connection are used. Figure 1 As shown, a groove 3 is provided at the joint between the side plate 1 and the bottom plate 2, and the groove 3 is filled with sealant. Figure 2 As shown, a gap is provided between the side plate 1 and the bottom plate 2, and the side plate 1 and the bottom plate 2 are connected by hot melt. However, this connection method has the following problems:

[0004] 1) Use adhesive or hot melt to connect. The adhesive takes a long time to solidify, the bonding process consumes a lot of man-hours, and the production speed is slow.

[0005] 2) Two-component structural adhesive has a strong odor, creates a poor working environment, and is not conducive to occupational health and hygiene.

[0006] 3) Adhesive bonding, the structure is not strong, the service life is short, and it affects the appearance quality of the product.

[0007] The second type, such as Figure 3 As shown, in order to solve the problems of the first type of adhesive, such as long solidification time and unsightly appearance, special connecting fasteners are made. During the final assembly, there is no bonding process for the front wall 4 and the side panel 1, and the fastener 5 is used to directly connect with the connecting member 6. Finally, the fastener 5 and the front wall 4 are further fixed with rivets. And the space formed at the connection between the front wall 4, the side panel 1 and the fastener 5 is filled with a foam 7. During the maintenance of the refrigerated truck, if the front wall 4 or the side panel 1 needs to be replaced, it is only necessary to remove the connecting fastener 5, and then replace it with a new wall panel, and use the fastener 5 to reconnect the front wall 4 and the side panel 1. However, this structure still has the following disadvantages:

[0008] 1) Refrigerated trucks may be subject to collisions, shaking, etc. during transportation, which may cause the front wall, side panels and fasteners to loosen, affecting product quality and service life, and posing a traffic safety hazard.

[0009] 2) The joints between the front wall, side panels and fasteners are prone to water seepage, affecting the thermal insulation effect of the refrigerated truck.

[0010] The third type, such as Figure 4As shown, the top plate, side plate and bottom plate of the refrigerated truck are changed from a whole plate to three small plates, which are connected and assembled through the middle connecting plate 8, and finally the gaps formed by the connecting plate 8, the right-angle plate 9 and the supporting structure 10 are filled with foam. This structure shifts the connection position between the plates from the right angles of the four ends of the refrigerated truck frame to the upper and lower 1 / 3 positions of the side plates, avoiding the use of rivets. However, this structure still has the following disadvantages:

[0011] 1) The production cost is high, the assembly process is complicated, and the tenon and mortise processing accuracy is required to be high.

[0012] 2) The shapes of the right-angle plates and connecting plates are complex, which can easily cause uneven foaming of the foam body during foaming, affecting the thermal insulation performance of the refrigerated truck.

[0013] 3) When producing a larger refrigerated truck, when the tenons at both ends of the connecting plate are inserted into the tenons at both ends of the right-angle plate, the connecting plate is large in size and long in length, and is prone to getting stuck, causing assembly difficulties and even causing the connecting plate to be scrapped.

[0014] 4) The seam divides the side panel into three parts, which reduces the strength of the side panel, top panel and bottom panel, and affects the overall appearance of the refrigerated truck.

[0015] 5) Reduced the internal volume of the refrigerated truck.

[0016] Therefore, there is a need for a refrigerated compartment, a refrigerated vehicle and a manufacturing method thereof to at least partially solve the problems existing in the prior art. Summary of the invention

[0017] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0018] In order to at least partially solve the above-mentioned problems, according to a first aspect of the present invention, a refrigerated compartment is provided, wherein the refrigerated compartment comprises a plurality of insulation compartment panels, wherein the insulation compartment panels comprise an outer panel, an inner panel and an insulation layer arranged between the outer panel and the inner panel, and at least two connectors and a sealant are arranged between the plurality of insulation compartment panels at mutually engaged positions, wherein the at least two connectors are overlapped at one end adjacent to each other and connected together by welding, and are respectively connected to the outer panels of the two insulation compartment panels at the other end to form a corner structure between the box panels on both sides, and the at least two connectors are constructed with a cavity open to the interior of the compartment after overlapping, and the sealant is filled inside the cavity.

[0019] The refrigerated compartment provided by the present invention improves the existing connection structure of refrigerated compartments. In this structure, the connecting parts are welded to the outer panels of the insulation compartment panels respectively, and the connecting parts are overlapped and welded together. After welding, the sealing parts are filled in the cavity of the corner structure, which enhances the strength and service life of the refrigerated compartment body and effectively prevents rainwater from penetrating into the foaming layer to affect the insulation performance.

[0020] Optionally, the heat-insulating compartment board is provided with reinforcing ribs inside, and the reinforcing ribs extend in a direction perpendicular to the length direction of the refrigerated compartment. According to this solution, the reinforcing ribs can enhance the structural strength of the heat-insulating compartment board.

[0021] Optionally, the reinforcing ribs are connected to the heat-insulating compartment plate by butt welding or gluing. According to this solution, the deformation of the reinforcing ribs and the heat-insulating compartment plate is small, and the operation is convenient.

[0022] Optionally, the connecting member comprises a lap plate, which is arranged at the edge of the insulation board and connected to the reinforcing rib by welding. According to this solution, a cavity can be generated between the two insulation boards, which can be further filled with a sealing member to enhance the insulation performance.

[0023] Optionally, the plurality of heat-insulating compartment panels are provided with edging on the inner side and / or the outer side of the mutually joined positions. According to this solution, rainwater can be effectively prevented from penetrating into the foaming layer.

[0024] Optionally, the sealing member is a foaming sealant. According to this solution, the sealing member is easily filled into the cavity.

[0025] The present invention also provides a refrigerated vehicle, which includes the above-mentioned refrigerated compartment. According to this solution, the refrigerated vehicle enhances the strength and service life of the refrigerated compartment, and effectively prevents rainwater from penetrating into the foaming layer to affect the thermal insulation performance.

[0026] The present invention also provides a method for manufacturing the above-mentioned refrigerated compartment, comprising:

[0027] Step 1: Butt weld the reinforcing ribs to the insulation board;

[0028] Step 2: Weld the reinforcing ribs to the connecting parts;

[0029] Step 3: Overlap the connecting pieces to form a corner structure and a cavity open to the interior of the vehicle body, and weld the connecting pieces at the overlapping positions;

[0030] Step 4: Fill the cavity with sealant.

[0031] Optionally, it also includes:

[0032] Step 5: Provide edging on the outer sides of the joints between the two insulation compartment panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the device and principle of the present invention. In the drawings,

[0034] Figure 1 A partial cross-sectional view of a first existing refrigerated vehicle;

[0035] Figure 2 is a transverse cross-sectional view of a second type of existing refrigerated truck;

[0036] Figure 3 It is a partial cross-sectional view of the third existing refrigerated truck;

[0037] Figure 4 is a transverse cross-sectional view of a fourth type of existing refrigerated truck;

[0038] Figure 5 A side structural diagram of a refrigerated compartment according to a preferred embodiment of the present invention;

[0039] Figure 6 for Figure 5 A top view of the refrigerated compartment shown;

[0040] Figure 7 for Figure 5 The main structural diagram of the refrigerated compartment shown;

[0041] Figure 8 for Figure 5 A structural diagram of a side panel of a refrigerated compartment shown;

[0042] Fig. 9 for Figure 8 A cross-sectional view taken along line II in FIG.

[0043] Fig.10 for Figure 8 A cross-sectional view taken along line II-II in FIG.

[0044] Fig.11 for Figure 5 A structural diagram of a roof panel of a refrigerated compartment shown;

[0045] Fig.12 for Fig.11 A cross-sectional view taken along line III-III in FIG.

[0046] Fig.13 for Fig.11 A cross-sectional view taken along line IV-IV in FIG.

[0047] Fig.14 for Figure 5 A structural diagram of the front panel of a refrigerated compartment shown;

[0048] Fig.15 for Fig.14 A cross-sectional view taken along line VV in FIG.

[0049] Fig.16 for Fig.14 A cross-sectional view taken along line VI-VI in FIG.

[0050] Fig.17 for Figure 7 A partial enlarged view of the D part in FIG.

[0051] Fig.18 for Figure 7 A partial enlarged view of part E in FIG.

[0052] Fig.19 for Figure 5 A partial enlarged view of part A;

[0053] Fig. 20 for Figure 5 A partial enlarged view of part B in FIG.

[0054] Fig.21 for Figure 6 A partial enlarged view of section C in FIG. 1 ; and

[0055] Fig. 22 for Fig.21 A side partial view of the side and front panels is shown.

[0056] Description of reference numerals:

[0057] 1: Side panel 2: Bottom panel

[0058] 3: Slot 4: Front wall

[0059] 5: Fasteners 6: Connectors

[0060] 7: Bulb 8: Connecting plate

[0061] 9: Right angle plate 10: Support structure

[0062] 100: Refrigerated compartment 101: Insulated compartment panel

[0063] 110: Top plate 111: External top plate

[0064] 112: Inner top plate 113: Top reinforcement rib

[0065] 114: first substrate 115: first extension plate

[0066] 120: Front panel 121: Outer front panel

[0067] 122: Inner front plate 123: Front reinforcement rib

[0068] 124: third substrate 125: third extension plate

[0069] 126: fourth extension plate 130: two side plates

[0070] 131: Outer plate 132: Inner plate

[0071] 133: Side reinforcement rib 134: Fifth base plate

[0072] 135: seventh extension plate 140: bottom plate

[0073] 141: Outer bottom plate 142: Inner bottom plate

[0074] 143: Bottom beam 144: First beam

[0075] 145: Second beam 146: Bottom lap plate

[0076] 147: seventh substrate 148: ninth extension plate

[0077] 150: Connector 151: Top lap plate

[0078] 152: second substrate 153: second extension plate

[0079] 154: front lap plate 155: fourth base plate

[0080] 156: fifth extension plate 157: sixth extension plate

[0081] 158: Side lap plate 159: Sixth base plate

[0082] 160: Eighth extension plate 170: Sealing member, thermal insulation material

[0083] 180: Outer hemming 181: Inner hemming

[0084] 190: Pad. DETAILED DESCRIPTION

[0085] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0086] In order to fully understand the present invention, a detailed structure will be presented in the following description to illustrate the present invention. Obviously, the implementation of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments and should not be construed as being limited to the embodiments presented here.

[0087] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. The singular forms "a", "an", and "said / the" are also intended to include plural forms unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0088] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifications and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0089] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present invention and do not limit the present invention.

[0090] like Figures 5 to 7 As shown, the present invention provides a refrigerated compartment 100. The refrigerated compartment 100 is a rectangular parallelepiped compartment body, which is composed of a frame and a plurality of heat-insulating compartment panels 101 mounted on the frame. The plurality of heat-insulating compartment panels 101 include a top panel 110, a front panel 120, two side panels 130, a bottom panel 140 and a rear panel (not shown). Figure 5 The side view of the refrigerated compartment 100 according to a preferred embodiment of the present invention is shown. A connecting member 150 and a sealing member 170 are provided at the joint position of the top plate 110 and the front plate 120 .

[0091] Specifically, Figures 11 to 13As shown, the top plate 110 includes an outer top plate 111 and an inner top plate 112. The seal 170 in this embodiment can be a heat-insulating material 170. The heat-insulating material 170 can be a foam sealant. In order to ensure that the heat-insulating effect of the refrigerated compartment 100 is good, the cavity between the outer top plate 111 and the inner top plate 112 is filled with foam. The heat-insulating material 170 is foamed in the cavity. At the same time, in order to ensure the connection strength of the outer top plate 111 and the inner top plate 112, a plurality of top reinforcing ribs 113 are arranged in the cavity of the top plate 110. The outer top plate 111 can be provided with a top reinforcing rib 113. The inner top plate 112 can be provided with a top reinforcing rib 113. Both the outer top plate 111 and the inner top plate 112 can be provided with a top reinforcing rib 113. When both the outer top plate 111 and the inner top plate 112 are provided with top reinforcing ribs 113, the top reinforcing ribs 113 provided on the outer top plate 111 are arranged alternately with the top reinforcing ribs 113 provided on the inner top plate 112. The plurality of top reinforcing ribs 113 may extend along the width direction of the refrigerated compartment 100. The plurality of top reinforcing ribs 113 may be arranged at intervals along the length direction of the refrigerated compartment 100.

[0092] The cross-section of the top reinforcing rib 113 is Ω-shaped. The top reinforcing rib 113 includes a first base plate 114 and two first extension plates 115. The first base plate 114 is connected to the two first extension plates 115 at both ends along the length direction of the refrigerated compartment 100. The first base plate 114 is connected to the inner surface of the outer top plate 111 by butt welding. The first base plate 114 can also be connected to the inner surface of the inner top plate 112 by butt welding. The cross-section of the first extension plate 115 is L-shaped. The extension sides of the two first extension plates 115 parallel to the inner top plate 112 extend in opposite directions. The top reinforcing rib 113 is constructed to have an opening so that the interior of the top reinforcing rib 113 is filled with foamed insulation material 170, thereby enhancing the insulation performance of the top plate 110.

[0093] Connectors 150 are provided at both ends of the top plate 110 along the length direction of the refrigerated compartment 100. The connector 150 includes a top lap plate 151. The material of the top lap plate 151 may be metal. The cross-sectional shape of the top lap plate 151 may be n-shaped so that it can be welded with other reinforcing ribs. The top lap plate 151 includes a second base plate 152 and two second extension plates 153. The second base plate 152 is connected to the two second extension plates 153 at both ends along the length direction of the refrigerated compartment 100. The second base plate 152 is connected to the inner surface of the outer top plate 111 by butt welding. The second base plate 152 can also be connected to the inner surface of the inner top plate 112 by butt welding. The cross-sectional shape of the second extension plate 153 is L-shaped. The extension directions of the extension edges of the two second extension plates 153 parallel to the outer top plate 111 are the same.

[0094] like Figures 14 to 16As shown, the front panel 120 includes an outer front panel 121 and an inner front panel 122. In order to ensure a good heat preservation effect of the refrigerated compartment 100, the cavity between the outer front panel 121 and the inner front panel 122 is filled with foam. The heat-insulating material 170 is formed by foaming in the cavity. At the same time, in order to ensure the connection strength of the outer front panel 121 and the inner front panel 122, a plurality of front reinforcing ribs 123 are arranged in the cavity of the front panel 120. The outer front panel 121 may be provided with a front reinforcing rib 123. The inner front panel 122 may be provided with a front reinforcing rib 123. Both the outer front panel 121 and the inner front panel 122 may be provided with a front reinforcing rib 123. When both the outer front panel 121 and the inner front panel 122 are provided with a front reinforcing rib 123, the front reinforcing rib 123 arranged on the outer front panel 121 and the front reinforcing rib 123 arranged on the inner front panel 122 are arranged alternately. The plurality of front reinforcing ribs 123 may extend in a height direction of the refrigerated compartment 100. The plurality of front reinforcing ribs 123 may be arranged at intervals in a width direction of the refrigerated compartment 100.

[0095] The cross-section of the front reinforcing rib 123 is in the shape of a rectangle. An opening is provided at one corner of the front reinforcing rib 123 so that the interior of the front reinforcing rib 123 is filled with a foamed insulation material 170, thereby enhancing the insulation performance of the front plate 120. The front reinforcing rib 123 includes a third base plate 124, a third extension plate 125, and a fourth extension plate 126. The third base plate 124 is connected to the third extension plate 125 and the fourth extension plate 126 at both ends along the width direction of the refrigerated compartment 100. The third base plate 124 can be connected to the outer front plate 121 by butt welding. The cross-section of the third extension plate 125 is in the shape of a straight line. The cross-section of the fourth extension plate 126 is in the shape of an L. The extension direction of the extension side of the fourth extension plate 126 parallel to the outer front plate 121 is toward the third extension plate 125. There is an opening between the third extension plate and the fourth extension plate. Of course, in an embodiment not shown in the figure, the third base plate can be connected to the inner front plate by butt welding.

[0096] Connectors 150 are provided at both ends of the front plate 120 along the width direction of the refrigerated compartment 100. The connector 150 includes a front lap plate 154. The material of the front lap plate 154 can be metal. The cross-section of the front lap plate 154 is in the shape of an N. The front lap plate 154 can extend along the width direction of the refrigerated compartment 100. The front lap plate 154 includes a fourth base plate 155, a fifth extension plate 156 and a sixth extension plate 157. The fourth base plate 155 is connected to the fifth extension plate 156 and the sixth extension plate 157 at both ends along the width direction of the refrigerated container. Of course, the fourth base plate 155 can be connected to the fifth extension plate 156 and the sixth extension plate 157 at both ends along the height direction of the refrigerated container. The fourth base plate 155 is connected to the outer front plate 121 by butt welding. The cross-section of the fifth extension plate 156 is in the shape of an L. The fifth extension plate 156 is close to the outer side of the compartment along the width direction of the refrigerated container. The cross section of the sixth extension plate 157 is in the shape of a straight line. The front lap plate 154 may also extend in the height direction of the refrigerated compartment 100 .

[0097] like Figures 8 to 10 As shown, the side panel 130 includes an outer panel 131 and an inner panel 132. In order to ensure a good insulation effect of the refrigerated compartment 100, the cavity between the outer panel 131 and the inner panel 132 is filled with foam. The insulation material 170 is foamed in the cavity. At the same time, in order to ensure the connection strength of the outer panel 131 and the inner panel 132, a plurality of side reinforcing ribs 133 are arranged in the cavity of the side panel 130. The outer panel 131 may be provided with a side reinforcing rib 133. The inner panel 132 may be provided with a side reinforcing rib 133. Both the outer panel 131 and the inner panel 132 may be provided with a side reinforcing rib 133. When both the outer panel 131 and the inner panel 132 are provided with a side reinforcing rib 133, the side reinforcing rib 133 provided on the outer panel 131 and the side reinforcing rib 133 provided on the inner panel 132 are arranged alternately. The plurality of side reinforcing ribs 133 may extend along the height direction of the refrigerated compartment 100. A plurality of side reinforcing ribs 133 may be arranged at intervals along the length direction of the refrigerated compartment 100 .

[0098] The cross-section of the side reinforcement 133 is Ω-shaped. The side reinforcement 133 includes a fifth base plate 134 and two seventh extension plates 135. The fifth base plate 134 is connected to the two seventh extension plates 135 at both ends along the length direction of the refrigerated compartment 100. The fifth base plate 134 is connected to the inner surface of the outer plate 131 by butt welding. In an embodiment not shown in the figure, the fifth base plate can also be connected to the inner surface of the inner plate by butt welding. The cross-section of the seventh extension plate is L-shaped. The extension directions of the extension edges of the two seventh extension plates parallel to the outer plates are opposite. The side reinforcement is constructed to have an opening so that the interior of the side reinforcement is filled with foamed insulation material, thereby enhancing the insulation performance of the side plate.

[0099] Connectors 150 are provided at both ends of the side panel 130 along the length direction of the refrigerated compartment 100. The connector 150 includes a side lap plate 158. The material of the side lap plate 158 may be metal. The cross-sectional shape of the side lap plate 158 may be n-shaped so that it can be welded with other reinforcing ribs. The side lap plate 158 includes a sixth base plate 159 and two eighth extension plates 160. The sixth base plate 159 is connected to the two eighth extension plates 160 at both ends along the length direction of the refrigerated compartment 100. The sixth base plate 159 is connected to the inner surface of the outer side panel 131 by butt welding. In an embodiment not shown in the figure, the sixth base plate can also be connected to the inner surface of the inner side panel by butt welding. The cross-sectional shape of the eighth extension plate is L-shaped. The extension directions of the extension edges of the two eighth extension plates parallel to the outer side panels are the same.

[0100] like Fig.19 and Fig.17 As shown, the bottom plate 140 includes an outer bottom plate 141 and an inner bottom plate 142. In order to ensure a good thermal insulation effect of the refrigerated compartment 100, the cavity between the outer bottom plate 141 and the inner bottom plate 142 is filled with foam. The thermal insulation material 170 is foamed in the cavity. At the same time, in order to ensure the connection strength of the outer bottom plate 141 and the inner bottom plate 142, a plurality of bottom cross beams are arranged in the cavity of the bottom plate 140. A plurality of bottom cross beams 143 are arranged at intervals along the length direction of the refrigerated compartment 100 in the cavity between the outer bottom plate 141 and the inner bottom plate 142. The bottom cross beam 143 extends in the width direction of the refrigerated compartment 100. A cushion block 190 is arranged above the bottom cross beam 143 along the height direction of the refrigerated compartment 100. The cushion block 190 can be a PE block, which is wear-resistant and low in cost.

[0101] The bottom cross beam 143 includes a first beam 144 and a second beam 145. The first beam 144 and the second beam 145 can be overlapped and welded together. The cross-section of the first beam 144 along the length direction of the refrigerated compartment 100 is L-shaped. The cross-section of the second beam 145 along the length direction of the refrigerated compartment 100 is C-shaped. The second beam 145 is connected to the outer bottom plate 141 by welding. The first beam 144 and the second beam 145 are connected together by welding to form a rectangular tube with both ends open in the width direction of the refrigerated compartment 100. The interior of the bottom cross beam 143 can be filled with foamed insulation material 170.

[0102] Bottom lap plates 146 are provided at both ends of the bottom plate 140 along the length direction of the refrigerated compartment 100. The bottom lap plates 146 may be made of metal. The cross-sectional shape of the bottom lap plate 146 may be L-shaped so that it can be welded with other reinforcing ribs. The bottom lap plate 146 includes a seventh base plate 147 and a ninth extension plate 148 connected to the seventh base plate 147. The seventh base plate 147 is connected to the inner surface of the outer bottom plate 141 by butt welding. The ninth extension plate 148 is connected to the second beam 145 by welding. Bottom reinforcing ribs (not shown) are provided in the cavity of the bottom plate 140. The bottom reinforcing ribs extend along the length direction of the refrigerated compartment. The bottom reinforcing ribs may also be connected to the ninth extension plate by welding.

[0103] The joining positions of the top plate 110 and the side plate 130 , the side plate 130 and the front plate 120 , the front plate 120 and the top plate 110 , the front plate 120 and the bottom plate 140 , and the bottom plate 140 and the side plate 130 will now be described.

[0104] Fig.17 A schematic structural diagram of the joint position of the bottom plate 140 and the side plate 130 is shown.

[0105] The bottom lap plate 146 is butt-welded to the outer bottom plate 141. The side reinforcing ribs 133 inside the side plate 130 extend in the height direction of the refrigerated compartment 100. The side reinforcing ribs 133 can be butt-welded to the outer side plate 131. The side reinforcing ribs 133 can also be butt-welded to the inner side plate 132. In an embodiment not shown in the figure, the side reinforcing ribs 133 can be welded to the side lap plate 158, and the side lap plate 158 can be butt-welded to the outer side plate 131. The bottom lap plate 146 and the side reinforcing ribs 133 overlap to form a corner structure. The side reinforcing ribs 133 are connected to the bottom lap plate 146 by welding. In order to make the welding stronger and facilitate assembly, the side reinforcing ribs 133 at the position close to the bottom lap plate 146 can be bent toward the inside of the refrigerated compartment 100. The side plate 130 and the bottom plate 140 form a cavity open to the inside of the compartment at the position where they are joined. After the side reinforcing ribs 133 are welded to the bottom lap plate 146, the cavity between the side plate 130 and the bottom plate 140 is filled with foamed insulation material 170. After the cavity between the side plate 130 and the bottom plate 140 is filled with foam, an outer edging 180 is provided at the corner where the side plate 130 and the bottom plate 140 are connected, facing the outside of the refrigerated compartment 100. The cross-section of the outer edging 180 is L-shaped. One bent edge of the outer edging 180 can be connected to the outer side plate 131 by welding. Another bent edge of the outer edging 180 can be connected to the outer bottom plate 141 by welding. An inner edging 181 is provided at the corner where the side plate 130 and the bottom plate 140 are connected, facing the inside of the refrigerated compartment 100.

[0106] Fig.18A schematic structural diagram of the joint position of the top plate 110 and the side plate 130 is shown.

[0107] The top reinforcing rib 113 inside the top plate 110 extends along the width direction of the refrigerated compartment 100. The top reinforcing rib 113 is butt-welded to the outer top plate 111. The top reinforcing rib 113 can also be butt-welded to the inner top plate 112. The top lap plate 151 is butt-welded to the outer top plate 111. The top lap plate 151 can also be butt-welded to the inner top plate 112. The top lap plate 151 is connected to the top reinforcing rib 113 by welding. The cross-section of the top lap plate 151 is L-shaped.

[0108] The side reinforcing ribs 133 inside the side panels 130 extend in the height direction of the refrigerated compartment 100. The side reinforcing ribs 133 are butt-welded to the outer side panels 131. The side reinforcing ribs 133 can also be butt-welded to the inner side panels 132. The side lap plates 158 are butt-welded to the outer side panels 131. The side lap plates 158 can also be butt-welded to the inner side panels 132. The side reinforcing ribs 133 are connected to the side lap plates 158 by welding. The cross-section of the side lap plates 158 is in the shape of a straight line.

[0109] The side lap plate 158 and the top lap plate 151 are overlapped to form a corner structure. The side lap plate 158 is connected to the top lap plate 151 by welding. The side plate 130 and the top plate 110 form a cavity open to the inside of the compartment at the mutually joined position. After the side lap plate 158 and the top lap plate 151 are welded together, the cavity between the side plate 130 and the top plate 110 is filled with foamed insulation material 170. After the cavity between the side plate 130 and the top plate 110 is filled with foam, an outer edge 180 is provided on the outside of the corner where the side plate 130 and the top plate 110 are connected. The cross-section of the outer edge 180 is in the shape of an arc. One arc edge of the outer edge 180 can be connected to the outer side plate 131 by welding. The other arc edge of the outer edge 180 can be connected to the outer top plate 111 by welding. An inner edge 181 is provided at a corner portion where the side panel 130 and the top panel 110 are connected, facing the inner side of the refrigerated compartment 100 .

[0110] Fig.19 A schematic structural diagram of the joint position of the front plate 120 and the bottom plate 140 is shown.

[0111] The bottom lap plate 146 is butt-welded to the outer bottom plate 141. The cross-section of the bottom lap plate 146 is L-shaped. The front reinforcing rib 123 inside the front plate 120 extends along the height direction of the refrigerated compartment 100. The front reinforcing rib 123 is butt-welded to the outer front plate 121. The front reinforcing rib 123 can also be butt-welded to the inner front plate 122. The front lap plate 154 is butt-welded to the outer front plate 121. The front lap plate 154 can also be butt-welded to the inner front plate 122. The front reinforcing rib 123 is connected to the front lap plate 154 by welding. The cross-section of the front lap plate 154 is C-shaped. The front lap plate 154 overlaps with the bottom lap plate 146 to form a corner structure. The front lap plate 154 is connected to the bottom lap plate 146 by welding. The front plate 120 and the bottom plate 140 form a cavity open to the interior of the compartment at the mutually joined position. After the front lap plate 154 and the bottom lap plate 146 are welded together, the cavity between the front plate 120 and the bottom plate 140 is filled with a foamed insulation material 170. After the cavity between the front plate 120 and the bottom plate 140 is filled with foam, an outer edging 180 is provided at the outer front of the corner where the front plate 120 and the bottom plate 140 are connected. The cross-section of the outer edging 180 is L-shaped. One bent edge of the outer edging 180 can be connected to the outer front plate 121 by welding. The other bent edge of the outer edging 180 can be connected to the outer bottom plate 141 by welding. An inner edging 181 is provided at the corner where the front plate 120 and the bottom plate 140 are connected, facing the inner side of the refrigerated compartment 100.

[0112] Fig. 20 A schematic structural diagram of the joint position of the front plate 120 and the top plate 110 is shown.

[0113] The top reinforcing rib 113 inside the top plate 110 extends along the width direction of the refrigerated compartment 100. The top reinforcing rib 113 is butt-welded to the outer top plate 111. The top reinforcing rib 113 can also be butt-welded to the inner top plate 112. The top lap plate 151 is butt-welded to the outer top plate 111. The top lap plate 151 can also be butt-welded to the inner top plate 112. The top lap plate 151 is connected to the top reinforcing rib 113 by welding. The cross-section of the top lap plate 151 is in the shape of an N letter.

[0114] The front reinforcing rib 123 inside the front plate 120 extends in the height direction of the refrigerated compartment 100. The front reinforcing rib 123 is butt-welded to the outer front plate 121. The front reinforcing rib 123 can also be butt-welded to the inner front plate 122. The front lap plate 154 is butt-welded to the outer front plate 121. The front lap plate 154 can also be butt-welded to the inner front plate 122. The front reinforcing rib 123 is connected to the front lap plate 154 by welding. The cross-section of the front lap plate 154 is C-shaped.

[0115] The front lap plate 154 and the top lap plate 151 are overlapped to form a corner structure. The front lap plate 154 is connected to the top lap plate 151 by welding. The front plate 120 and the top plate 110 form a cavity open to the inside of the compartment at the mutually joined position. After the front lap plate 154 and the top lap plate 151 are welded together, the cavity between the front plate 120 and the top plate 110 is filled with foamed insulation material 170. After the cavity between the front plate 120 and the top plate 110 is filled with foam, an outer edge 180 is provided at the outer front of the corner where the front plate 120 and the top plate 110 are connected. The cross-section of the outer edge 180 is in an arc shape. One arc edge of the outer edge 180 can be connected to the outer front plate 121 by welding. The other arc edge of the outer edge 180 can be connected to the outer top plate 111 by welding. An inner edge 181 is provided at a corner portion where the front panel 120 and the top panel 110 are connected, facing the inner side of the refrigerated compartment 100 .

[0116] Fig.21 A schematic structural diagram of the joint position of the front plate 120 and the side plate 130 is shown.

[0117] The side reinforcing ribs 133 inside the side panels 130 extend in the height direction of the refrigerated compartment 100. The side reinforcing ribs 133 are butt-welded to the outer side panels 131. The side reinforcing ribs 133 can also be butt-welded to the inner side panels 132. The side lap plates 158 are butt-welded to the outer side panels 131. The side lap plates 158 can also be butt-welded to the inner side panels 132. The side lap plates 158 are connected to the side reinforcing ribs 133 by welding.

[0118] The front reinforcing rib 123 inside the front plate 120 extends in the height direction of the refrigerated compartment 100. The front reinforcing rib 123 is butt-welded to the outer front plate 121. The front reinforcing rib 123 can also be butt-welded to the inner front plate 122. The front lap plate 154 is butt-welded to the outer front plate 121. The front lap plate 154 can also be butt-welded to the inner front plate 122. The front reinforcing rib 123 is connected to the front lap plate 154 by welding.

[0119] The front lap plate 154 and the side lap plate 158 are overlapped to form a corner structure. The front lap plate 154 is connected to the side lap plate 158 by welding. The front plate 120 and the side plate 130 form a cavity open to the interior of the compartment at the mutually joined position. After the front lap plate 154 and the side lap plate 158 are welded together, the cavity between the front plate 120 and the side plate 130 is filled with foamed insulation material 170. After the cavity between the front plate 120 and the side plate 130 is filled with foam, an outer edge 180 is provided at the outer front of the corner where the front plate 120 and the side plate 130 are connected. The cross-section of the outer edge 180 is in the shape of an arc. One arc edge of the outer edge 180 can be connected to the outer front plate 121 by welding. The other arc edge of the outer edge 180 can be connected to the outer side plate 131 by welding. An inner edge 181 is provided at a corner portion where the side panel 130 and the front panel 120 are connected, facing the inner side of the refrigerated compartment 100 .

[0120] Fig. 22 A schematic structural diagram of the joint position of the front plate 120 and the top plate 110 is shown.

[0121] The top reinforcing rib 113 inside the top plate 110 extends along the width direction of the refrigerated compartment 100. The top reinforcing rib 113 is butt-welded to the outer top plate 111. The top reinforcing rib 113 can also be butt-welded to the inner top plate 112. The top lap plate 151 is butt-welded to the outer top plate 111. The top lap plate 151 can also be butt-welded to the inner top plate 112. The top lap plate 151 is connected to the top reinforcing rib 113 by welding.

[0122] The front reinforcing rib 123 inside the front plate 120 extends in the height direction of the refrigerated compartment 100. The front reinforcing rib 123 is butt-welded to the outer front plate 121. The front reinforcing rib 123 can also be butt-welded to the inner front plate 122. The front lap plate 154 is butt-welded to the outer front plate 121. The front lap plate 154 can also be butt-welded to the inner front plate 122. The front reinforcing rib 123 is connected to the front lap plate 154 by welding.

[0123] The front lap plate 154 and the top lap plate 151 are overlapped to form a corner structure. The front lap plate 154 is connected to the top lap plate 151 by welding. The front plate 120 and the top plate 110 form a cavity open to the inside of the compartment at the mutually joined position. After the front lap plate 154 and the top lap plate 151 are welded together, the cavity between the front plate 120 and the top plate 110 is filled with foamed insulation material 170. After the cavity between the front plate 120 and the top plate 110 is filled with foam, an outer edge 180 is provided at the outer front of the corner where the front plate 120 and the top plate 110 are connected. The cross-section of the outer edge 180 is in an arc shape. One arc edge of the outer edge 180 can be connected to the outer front plate 121 by welding. The other arc edge of the outer edge 180 can be connected to the outer top plate 111 by welding. An inner edge 181 is provided at a corner portion where the front panel 120 and the top panel 110 are connected, facing the inner side of the refrigerated compartment 100 .

[0124] The present invention further provides a refrigerated truck, which includes the refrigerated compartment 100 described above.

[0125] A refrigerated compartment provided by the present invention improves the connection structure of the existing refrigerated truck. The present invention provides a refrigerated compartment, a refrigerated truck and a manufacturing method thereof, which improves the connection structure of the existing refrigerated truck. This structure performs butt welding of the embedded reinforcing ribs and lap plates with the outer top plate, the outer side plate or the outer front plate, respectively, and then uses advanced laser welding technology to respectively weld the respective joints of the pre-foamed top plate, the side plate, the front wall and the bottom plate of the refrigerated truck, and then installs the inner and outer profiles after welding, thereby enhancing the strength and service life of the refrigerated box, and effectively preventing rainwater from penetrating into the foaming layer and affecting the thermal insulation performance.

[0126] The present invention also provides a method for manufacturing the above-mentioned refrigerated compartment. The manufacturing method comprises the following steps:

[0127] Step S101: Butt-weld the reinforcing ribs to the insulation compartment plate.

[0128] The front plate 120 includes an outer front plate 121 and an inner front plate 122. A plurality of front reinforcing ribs 123 are provided inside the front plate 120. The front reinforcing ribs 123 extend along the height direction of the refrigerated compartment 100. The front reinforcing ribs 123 can be connected to the outer front plate 121 by butt welding. The front reinforcing ribs 123 can also be connected to the inner front plate 122 by butt welding.

[0129] The top plate 110 includes an outer top plate 111 and an inner top plate 112. A plurality of top reinforcing ribs 113 are provided inside the top plate 110. The top reinforcing ribs 113 extend along the height direction of the refrigerated compartment 100. The top reinforcing ribs 113 can be connected to the outer top plate 111 by butt welding. The top reinforcing ribs 113 can also be connected to the inner top plate 112 by butt welding.

[0130] The side panel 130 includes an outer panel 131 and an inner panel 132. A plurality of side reinforcing ribs 133 are provided inside the side panel 130. The side reinforcing ribs 133 extend along the height direction of the refrigerated compartment 100. The side reinforcing ribs 133 can be connected to the outer panel 131 by butt welding. The side reinforcing ribs 133 can also be connected to the inner panel 132 by butt welding.

[0131] Step S102: welding the reinforcing ribs to the connecting pieces.

[0132] Connectors 150 are provided at both ends of the front plate 120 along the height direction of the refrigerated compartment 100. The connector 150 includes a front lap plate 154. The front lap plate 154 is welded to the front reinforcing rib 123. Connectors 150 are provided at both ends of the top plate 110 along the width direction of the refrigerated compartment 100. The connector 150 includes a top lap plate 151. The top lap plate 151 is welded to the top reinforcing rib 113. Connectors 150 are provided at both ends of the side plate 130 along the height direction of the refrigerated compartment 100. The connector 150 includes a side lap plate 158. The side lap plate 158 is welded to the side reinforcing rib 133.

[0133] Step S103: Overlapping the connecting pieces to form a corner structure and a cavity open to the interior of the vehicle body, and welding the connecting pieces at the overlapping positions.

[0134] The front lap plate 154 and the top lap plate 151 are overlapped to form a corner structure. A cavity open to the interior of the car body is formed between the front lap plate 154 and the top lap plate 151. The front lap plate 154 and the top lap plate 151 are welded. The front lap plate 154 and the side lap plate 158 are overlapped to form a corner structure. The front lap plate 154 and the side lap plate 158 are overlapped to form a corner structure. A cavity open to the interior of the car body is formed between the front lap plate 154 and the side lap plate 158. The front lap plate 154 and the side lap plate 158 are welded. The top lap plate 151 and the side lap plate 158 are overlapped to form a corner structure. The top lap plate 151 and the side lap plate 158 are overlapped to form a corner structure. A cavity open to the interior of the car body is formed between the top lap plate 151 and the side lap plate 158. The top lap plate 151 and the side lap plate 158 are welded.

[0135] Step S104: Fill the cavity with a sealing member.

[0136] The seal 170 includes an insulating material 170. The cavity formed between the front lap plate 154 and the top lap plate 151 is filled with the insulating material 170. The cavity formed between the front lap plate 154 and the side lap plate 158 is filled with the insulating material 170. The cavity formed between the top lap plate 151 and the side lap plate 158 is filled with the insulating material 170.

[0137] Step S105: providing an edge wrapping on the outer sides of the mutually joined positions of the two heat-insulating compartment panels.

[0138] An outer edge 180 is provided on the outer side of the mutually joined position between the front plate 120 and the top plate 110. The outer edge 180 is connected to both the front plate 120 and the top plate 110. An outer edge 180 is provided on the outer side of the mutually joined position between the front plate 120 and the side plate 130. The outer edge 180 is connected to both the front plate 120 and the side plate 130. An outer edge 180 is provided on the outer side of the mutually joined position between the top plate 110 and the side plate 130. The outer edge 180 is connected to both the top plate 110 and the side plate 130.

[0139] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "parts" and "pieces" appearing in this article may represent either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing in this article may represent either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0140] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A refrigerated compartment, comprising a plurality of insulation compartment panels, wherein the insulation compartment panels include an outer panel, an inner panel, and an insulation layer disposed between the outer panel and the inner panel. It is characterized in that At least two connecting members and sealing members are provided between the plurality of heat-insulating compartment plates at mutually joined positions. The at least two connecting members are overlapped at one end adjacent to each other and connected together by welding, and are respectively connected to the outer plates of the two insulation compartment plates at the other end to form a corner structure between the two side compartment plates, and the at least two connecting members are configured with a cavity open to the interior of the compartment body after overlapping, and the sealing member is filled in the cavity. Among them, reinforcing ribs are provided inside the insulation compartment panel, and the reinforcing ribs extend in a direction perpendicular to the length direction of the refrigerated compartment. The connecting parts all include lap plates, and the lap plates are arranged at the edges of the insulation compartment panel and connected to the reinforcing ribs by welding. The lap plates all include a base plate and two extension plates, and the two ends of the base plate are respectively connected to the two extension plates at an angle. The base plate is connected to the inner surface of the outer plate or the outer surface of the inner plate by butt welding, and the extension plate extends toward the inside of the compartment, so that the respective extension plates of the at least two connecting parts forming the same corner structure are overlapped and welded together.

2. The refrigerated compartment according to claim 1, It is characterized in that The reinforcing ribs are connected to the insulation compartment plate by butt welding or gluing.

3. The refrigerated compartment according to claim 1, It is characterized in that The plurality of heat-insulating compartment panels are provided with edging on the inner side and / or the outer side of the mutually joined positions.

4. The refrigerated compartment according to claim 1, It is characterized in that The sealing member is a foaming sealant.

5. A refrigerated truck, It is characterized in that The refrigerated vehicle comprises a refrigerated compartment according to any one of claims 1-4.

6. A method for manufacturing the refrigerated compartment according to claim 1, It is characterized in that include: Step 1: Butt weld the reinforcing ribs to the insulation board; Step 2: Weld the reinforcing ribs to the connecting parts; Step 3: Overlap the connecting pieces to form a corner structure and a cavity open to the interior of the vehicle body, and weld the connecting pieces at the overlapping positions; Step 4: Fill the cavity with sealant.

7. The method according to claim 6, It is characterized in that Also includes: Step 5: Provide edging on the outer sides of the joints between the two insulation compartment panels.

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