Electric heating cabin section and air handling unit

Abstract

The application discloses an electric heating cabin section and an air handling unit, and belongs to the technical field of air conditioning equipment. The electric heating cabin section comprises a heating module and a box body. The heating module comprises a heating unit and a chassis. The chassis is provided with a fixing portion, and the heating unit is fixedly connected to the fixing portion. The chassis is provided with a first guide portion. One side of the box body is provided with an opening and a panel covering the opening. The box body is provided with an installation cavity in communication with the opening. The box body is provided with a second guide portion. The first guide portion and the second guide portion are matched to guide. The operation is easier. The heating module can be slid into or out of the installation cavity. The disassembly and assembly are more convenient. The heating module is easier to position. The assembly structure is more stable and reliable. The application is suitable for the air handling unit and can effectively reduce the possibility of vibration and noise during operation.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to an electric heating section and an air handling unit. Background Technology

[0002] The functional modules of an air handling unit include a heating module. In related technologies, there are problems with the accurate positioning of the heating module when it is installed in the air handling unit, which can easily cause vibration and noise during operation. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an electrothermal chamber section, which, through a guiding structure, makes the heating module easier to position, facilitates assembly, and effectively reduces the possibility of vibration and noise during operation.

[0004] The present invention also provides an air handling unit including the above-mentioned electric heating section.

[0005] An electrically heated chamber according to a first aspect embodiment of the present invention includes:

[0006] A heating module includes a heating unit and a chassis. The chassis has a fixing part, the heating unit is fixedly connected to the fixing part, and the chassis has a first guide part.

[0007] The housing has an opening on one side and a panel that covers the opening. The housing has a mounting cavity that communicates with the opening. The housing has a second guide portion that is slidably connected to the first guide portion, so that the heating module can slide into or out of the mounting cavity.

[0008] The electric heating chamber section according to embodiments of the present invention has at least the following beneficial effects:

[0009] A first guide section is added to the chassis of the heating module, and a second guide section is set inside the housing. The first and second guide sections work together to guide the heating module, making operation easier and facilitating the sliding of the heating module into or out of the mounting cavity. Disassembly and assembly are more convenient, and the heating module is easier to position. The assembly structure is more stable and reliable, making it suitable for air handling units and effectively reducing the possibility of vibration and noise during operation.

[0010] According to some embodiments of the present invention, the second guide portion extends from the opening of the housing into the mounting cavity.

[0011] According to some embodiments of the present invention, the first guide portion is a first protrusion formed on the chassis, the housing is provided with a first support member located on at least one side of the mounting cavity, and the second guide portion is a first groove formed on the first support member.

[0012] According to some embodiments of the present invention, the bottom wall of the first support member is formed with a reinforcing rib, and the extending direction of the reinforcing rib forms an angle with the extending direction of the first groove.

[0013] According to some embodiments of the present invention, the first guide portion extends from the side of the chassis away from the fixing portion toward the fixing portion.

[0014] According to some embodiments of the present invention, the first guide portion is a second groove formed on the bottom wall of the chassis, the housing is provided with a first support member located on at least one side of the mounting cavity, and the second guide portion is a second protrusion formed on the first support member.

[0015] According to some embodiments of the present invention, the first guide portion is a guide post formed on both sides of the chassis, the housing is provided with a partition plate located at the bottom of the mounting cavity, and the partition plate is provided with second support members on both sides, and the second guide portion is a guide groove formed on the second support member.

[0016] According to some embodiments of the present invention, the edge of the chassis is bent to form at least two consecutively connected bent segments, and the at least two bent segments surround to form the guide post. The second support member is provided with an upper baffle, a lower baffle, and a side plate. The upper baffle, the lower baffle, and the side plate surround to form the guide groove, and the openings of the two guide grooves are arranged opposite to each other.

[0017] According to some embodiments of the present invention, the upper baffle, the lower baffle, and the side plate are respectively provided with flanges at one end near the opening, and the flanges are bent toward the outside of the guide groove so that the surface of the flanges forms an inclined surface.

[0018] According to some embodiments of the present invention, the heating module further includes a frame surrounding the heating unit, the frame being fixedly connected to the fixing part, and third guide parts being provided on both sides of the frame in the same direction as the extension direction of the first guide part. The housing is also provided with a frame located in the mounting cavity, and the frame is provided with a fourth guide part slidably connected to the third guide part, so that the frame slides into or out of the frame.

[0019] According to some embodiments of the present invention, the third guide portion is a first guide rail formed on both sides of the frame, two third support members are provided in the frame and oppositely arranged, the fourth guide portion is a second guide rail formed on the third support member, and the first guide rail and the second guide rail are slidably connected.

[0020] According to some embodiments of the present invention, a first positioning part is provided on the side of the frame away from the fixing part, and the frame is provided with a second positioning part that matches and connects with the first positioning part, so that the frame can be positioned within the frame.

[0021] According to some embodiments of the present invention, the heating module is provided with a plurality of heating units, each heating unit including a heating wire and a bracket, the heating wire being wound to form a plurality of heating elements, the heating elements being fixedly connected to the bracket, and the bracket being fixedly connected to the fixing part.

[0022] According to some embodiments of the present invention, the heating unit is provided with six heating elements, which are divided into two groups arranged at intervals along the height direction of the heating unit, and each group includes three heating elements.

[0023] According to some embodiments of the present invention, the fixing part includes a first fixing plate and a second fixing plate arranged at intervals, the heating unit is fixedly connected to the first fixing plate, and the second fixing plate is provided with a rotatable handle on the side away from the heating unit.

[0024] According to some embodiments of the present invention, the second fixing plate is provided with a connecting plate, the handle is rotatably connected to the connecting plate, the connecting plate is provided with a first limiting part and a second limiting part, the first limiting part and the second limiting part cooperate to limit the handle to rotate between an unfolded state and a folded state.

[0025] According to some embodiments of the present invention, the electric heating chamber section further includes an electronic control device connected to the heating unit, the chassis, the first fixing plate and the second fixing plate cooperate to form an installation space, and the electronic control device is installed in the installation space.

[0026] An air handling unit according to a second aspect of the present invention includes the electrically heated compartment described in the first aspect of the present invention.

[0027] The air handling unit according to embodiments of the present invention has at least the following beneficial effects:

[0028] The electric heating section of the embodiment is used for heating. The electric heating section is guided by the cooperation of the first guide part and the second guide part, which makes the operation easier and facilitates the sliding of the heating module into or out of the mounting cavity. Disassembly and assembly are more convenient, the heating module is easier to position, the assembly structure is more stable and reliable, and the possibility of vibration and noise during the operation of the air handling unit is effectively reduced.

[0029] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the electric heating chamber section according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the electric heating chamber section according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the assembly structure of the heating module and the first support member according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the chassis structure according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the first support member according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the assembly structure of the heating module and the middle partition plate according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the heating module according to another embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the partition and frame according to an embodiment of the present invention;

[0038] Figure 9 This is a front structural diagram of the heating module and the partition plate according to an embodiment of the present invention;

[0039] Figure 10 yes Figure 9 Enlarged structural diagram at point A;

[0040] Figure 11 yes Figure 6 Enlarged structural diagram at point B;

[0041] Figure 12 yes Figure 7 Enlarged structural diagram at point C;

[0042] Figure 13 This is a schematic diagram of the structure of a heating unit according to an embodiment of the present invention;

[0043] Figure 14 This is a schematic diagram of the heating unit according to another embodiment of the present invention.

[0044] Figure label:

[0045] 100 for housing; 110 for panel; 120 for air outlet; 130 for opening; 140 for mounting cavity;

[0046] Heating module 200; First guide part 201; Third guide part 202; Installation space 203; Heating unit 210; Heating element 211; Bracket 212; Temperature controller 213; Fuse 214; Chassis 220; First protrusion 221; Guide column 222; First bending section 2221; Second bending section 2222; Fixing part 230; First fixing plate 231; Second fixing plate 232; Connecting plate 2321; First limiting part 2322; Second limiting part 2323; Connecting rod 233; Relay 240; Handle 250; Air switch 260; Terminal block 270; Busbar 280; Frame 290; First guide rail 291; Protruding edge 2911; Opening 292;

[0047] Middle partition 300; second guide part 301; fourth guide part 302; second positioning part 303; first support member 310; first groove 311; reinforcing rib 312; second support member 320; guide groove 321; upper baffle 322; first flange 3221; lower baffle 323; second flange 3231; side plate 324; third flange 3241; frame 330; through hole 331; positioning hole 332; third support member 340; second guide rail 341;

[0048] Fan 400;

[0049] Fan module 1000. Detailed Implementation

[0050] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0051] In the description of this invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0052] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0053] In the description of this invention, it should be noted that terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0054] In the description of this invention, the descriptions of embodiments, specific embodiments, etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0056] refer to Figures 1 to 14 The air handling unit described in this embodiment of the invention uses a heating module 200 for auxiliary heating. The air handling unit is described below with specific examples.

[0057] Reference Figure 1 As shown, the air handling unit provided in this embodiment of the invention is a ducted air handling unit. The air handling unit includes a fan module 1000 and a heat exchange module (not shown in the attached diagram). A heating module 200 is installed inside the fan module 1000. The fan module 1000 can be understood as an electric heating section. The fan module 1000 and the heat exchange module are connected by a detachable installation structure. Both the fan module 1000 and the heat exchange module form a through-flow duct. Airflow enters through the air inlet (not shown in the attached diagram) of the air handling unit, and after passing through the fan module 1000 and the heat exchange module, it is cooled or heated before being blown out from the air outlet 120. Considering that the heating module 200 of the air handling unit is installed in the fan module 1000, this embodiment of the invention uses the fan module 1000 as an example for specific description.

[0058] Reference Figure 1 and Figure 2As shown, the electric heating chamber of this embodiment includes a housing 100. The front of the housing 100 has an opening 130 and a panel 110. The panel 110 is detachably connected to the opening 130. An air outlet 120 is located at the top of the housing 100. A heating module 200 and a fan 400 are installed inside the housing 100. The heating module 200 is positioned near the air outlet 120, and the fan 400 is installed below the heating module 200. The heating module 200 heats the airflow within the duct to generate hot air, which is then blown out from the air outlet 120, providing auxiliary electric heating. A partition 300 is provided between the heating module 200 and the fan 400. The partition 300 is fixedly connected to the housing 100, and the partition 300 and the housing 100 together define a mounting cavity 140. The heating module 200 is installed within the mounting cavity 140, and the mounting cavity 140 communicates with the duct. It is understandable that during assembly, the heating module 200 needs to be inserted into the mounting cavity 140 from the opening 130; when the heating module 200 needs to be inspected and maintained, it needs to be pulled out from the mounting cavity 140. In this embodiment of the invention, a guide structure is used to guide the heating module 200, which facilitates the disassembly and assembly of the heating module 200 and makes it easier to position the heating module 200.

[0059] Reference Figure 3 As shown, the heating module 200 includes heating units 210 and a chassis 220. The chassis 220 is provided with a fixing part 230. The heating module 200 has three heating units 210, which are arranged along the height direction of the heating module 200 and are all fixedly connected to the fixing part 230. The fixing part 230 includes a first fixing plate 231 and a second fixing plate 232, which are respectively disposed on both sides of the chassis 220 along its width direction. The heating units 210 are connected to one side of the first fixing plate 231. After the heating units 210, the first fixing plate 231, and the second fixing plate 232 are assembled with the chassis 220 to form the heating module 200, the heating module 200 is then assembled into the mounting cavity 140. It should be noted that the fixing part 230 is not limited to the plate structure of the first fixing plate 231 and the second fixing plate 232, but can also be a fixing block or other structure.

[0060] Reference Figure 2 and Figure 3As shown, it can be understood that the chassis 220 of the embodiment is provided with a first guide portion 201, which extends along the width direction of the chassis 220; the housing 100 is provided with a second guide portion 301, which extends from the opening 130 to the mounting cavity 140. The first guide portion 201 and the second guide portion 301 are slidably connected, and the cooperation between the first guide portion 201 and the second guide portion 301 forms a guide structure, which guides the heating module 200, so that the heating module 200 can slide into or out of the mounting cavity 140. It should be noted that the second guide part 301 can be provided on the inner wall of the housing 100 or on the partition plate 300. The first guide part 201 and the second guide part 301 can be guide structures such as guide rails, guide blocks, and guide grooves. For example, the guide rail extends from the opening 130 into the mounting cavity 140. The heating module 200 can move along the guide rail into the mounting cavity 140 through the guide block, or the heating module 200 can be extracted from the mounting cavity 140.

[0061] It should be noted that in the relevant technology, without a guide structure, it is inconvenient to remove the heating module 200, and the heating module 200 is prone to inaccurate positioning when inserted and assembled, which causes the air handling unit to vibrate and generate noise during operation. In this case, the air handling unit needs to be disassembled and reassembled, which is very troublesome.

[0062] Reference Figure 2 As shown, it can be understood that the present invention uses the first guide part 201 and the second guide part 301 for guidance, which makes it easier to position the heating module 200, reduces the likelihood of misalignment during assembly, and makes disassembly more convenient. After the heating module 200 is assembled, the heating unit 210 is located in the air duct and corresponds to the air outlet 120, which makes the positioning more accurate. This effectively solves the problem of inaccurate positioning of the heating module 200, reduces the possibility of vibration and noise in the air handling unit during operation due to misalignment of the heating module 200, and makes the assembly structure more stable and reliable.

[0063] Reference Figure 4 and Figure 5As shown in the embodiment of the present invention, the first guide portion 201 consists of two first protrusions 221. The two first protrusions 221 are formed on the bottom wall of the chassis 220 and are respectively located on both sides along the length direction of the chassis 220. The two first protrusions 221 extend along the width direction of the chassis 220 and are parallel to each other. A first support member 310 is provided on the partition plate 300. The first support member 310 can be located on one side of the mounting cavity 140, or the first support member 310 can be provided on both sides of the mounting cavity 140. The second guide portion 301 is disposed on the first support member 310. The second guide portion 301 consists of two first grooves 311 formed on the first support member 310. The two first grooves 311 extend along the width direction of the chassis 220, and the first grooves 311 correspond one-to-one with the first protrusions 221, so that the first protrusions 221 can be placed in the corresponding first grooves 311. Through the guidance of the first protrusions 221 and the first grooves 311, the chassis 220 can move along the extension direction of the first grooves 311. It can be understood that the first protrusions 221 are located on the bottom wall of the chassis 220, and the first grooves 311 are located on the upper surface of the first support member 310. The first groove 311 has an inlet at one end near the opening 130, so that the first protrusions 221 can enter the first grooves 311 from the inlet.

[0064] Figure 3 The diagram shows the assembly of the heating module 200 and the first support member 310. It can be understood that the heating unit 210 is fixed on the first fixing plate 231 and extends along the guiding direction of the first protrusion 221 and the first groove 311. During assembly, the chassis 220 is placed on the first support member 310. The heating unit 210 does not need to contact the middle partition 300. Through the positioning of the first protrusion 221 and the first groove 311, the heating module 200 can be quickly pushed into the mounting cavity 140. When the first protrusion 221 moves to the end of the first groove 311 away from the inlet, the first protrusion 221 cannot move further due to the limiting of the first groove 311. That is, the heating module 200 is assembled in place, thereby accurately positioning the heating module 200 and realizing a limiting guide structure.

[0065] Reference Figure 4 and Figure 5As shown, it should be noted that in this embodiment, both the chassis 220 and the first support member 310 are sheet metal parts. By providing a downwardly recessed pit on the upper surface of the chassis 220, a first protrusion 221 can be formed on the bottom surface of the chassis 220. The upper surface of the first support member 310 is recessed downward to form a first groove 311. The pit and the first groove 311 can be formed by stamping. The number of first protrusions 221 and first grooves 311 is not limited to the number shown in the above embodiment. The more first protrusions 221 and first grooves 311 there are, the higher the stability of the guide structure. For example, the chassis 220 may be provided with three or more first protrusions 221, which are spaced apart along the length of the chassis 220. The number of first grooves 311 is the same as the number of first protrusions 221, and the specific number is not further limited.

[0066] Reference Figure 5 As shown, in this embodiment of the invention, the first support member 310 is provided with a reinforcing rib 312. A pit is formed by stamping on the upper surface of the first support member 310, thereby forming a reinforcing rib 312 protruding from the bottom surface of the first support member 310. The reinforcing rib 312 is spaced apart from the first groove 311. Figure 5 The first support member 310 is shown to have a reinforcing rib 312. The reinforcing rib 312 is located on the side of the first support member 310 away from the inlet. The reinforcing rib 312 extends along the length direction of the first support member 310, and the extension direction of the reinforcing rib 312 is perpendicular to the extension direction of the first groove 311. The reinforcing rib 312 enhances the strength of the first support member 310, making the support structure of the first support member 310 more stable and reliable. In some embodiments, multiple reinforcing ribs 312 may be provided, and the reinforcing ribs 312 are arranged at intervals along the width direction of the first support member 310. The extension direction of the reinforcing rib 312 and the extension direction of the first groove 311 are not limited to being perpendicular to each other, but may also be other included angles, without specific limitation, so that the reinforcing rib 312 can play an effective reinforcing role.

[0067] It is understood that the first guide portion 201 and the second guide portion 301 are not limited to the structure shown in the above embodiments. In some embodiments, the first guide portion 201 extends from the side of the chassis 220 away from the first fixing plate 231 toward the first fixing plate 231, and the second guide portion 301 may be disposed on the middle partition plate 300. The first guide portion 201 and the second guide portion 301 are slidably connected, and the heating module 200 can slide into or out of the mounting cavity 140 through the first guide portion 201.

[0068] To illustrate with a specific example, the first guide portion 201 consists of two second grooves (not shown in the figures) formed on the bottom wall of the chassis 220, and the two second grooves are parallel to each other. First support members 310 are respectively provided on both sides of the mounting cavity 140. The second guide portion 301 consists of two second protrusions (not shown in the figures) formed on the first support members 310, with each of the two second protrusions corresponding to one of the two grooves, allowing the second protrusions to be placed in their respective second grooves. Through the guidance of the second protrusions and the second grooves, the chassis 220 can move along the extension direction of the second grooves. It is understood that an inlet is provided at the end of the second groove near the opening, facilitating the entry of the second protrusions into the second groove from the inlet.

[0069] Reference Figure 6 , Figure 7 and Figure 8 As shown in the embodiment, the first guide portion 201 is a guide post 222 formed on both sides of the chassis 220, and the guide post 222 extends along the width direction of the chassis 220; the middle partition 300 is provided with a second support member 320 on both sides, and the second guide portion 301 is a guide groove 321 formed on the second support member 320, and the guide groove 321 extends along the width direction of the chassis 220; the two guide posts 222 are parallel to each other, and the two guide grooves 321 are parallel to each other. The two guide posts 222 are inserted into the two guide grooves 321 respectively and can slide along the guide grooves 321. The chassis 220 can be moved along the extension direction of the guide grooves 321 by the cooperation of the guide posts 222 and the guide grooves 321, so that the heating module 200 can be quickly pushed into the mounting cavity 140 or pulled out from the mounting cavity 140, which is simple to operate.

[0070] Reference Figure 7 As shown, two guide posts 222 are located at both ends of the chassis 220 along its length. Since the chassis 220 is made of sheet metal, the guide posts 222 can be integrally formed using the sheet metal. Specifically, in this embodiment, the edge of the chassis 220 is bent to form two bent segments, including a first bent segment 2221 and a second bent segment 2222. The bending angles of the first bent segment 2221 and the second bent segment 2222 can each be 90°. The two bent segments are connected sequentially and surround the guide post 222, making the cross-section of the guide post 222 approximately square. It is understood that the number of bent segments is not limited to two; multiple bent segments can also be provided, for example, three bent segments can be connected sequentially to form a square guide post 222. The shape of the guide post 222 can also be cylindrical, triangular, or other polygonal, and is not specifically limited here. In some embodiments, the guide post 222 and the chassis 220 may also adopt a separate structure. Guide blocks may be provided on both sides of the chassis 220 to form the guide post 222. The specific form of the guide post 222 is not further limited.

[0071] Reference Figure 7As shown, it should be noted that the length of the chassis 220 is greater than the length of the first fixing plate 231 and the second fixing plate 232, so that the guide posts 222 on both sides can protrude from both ends of the first fixing plate 231 and the second fixing plate 232, thus avoiding interference between the first fixing plate 231 and the second fixing plate 232 and the guide structure.

[0072] Reference Figure 8 As shown, two second support members 320 are generally elongated and fixedly connected to the partition plate 300. The second support members 320 protrude from the upper surface of the partition plate 300, and the second support members 320 can also be integrally formed with the partition plate 300. Each of the two second support members 320 is provided with a guide groove 321, with the openings of the two guide grooves 321 facing each other. The side of each guide groove 321 near the opening 130 is provided with an inlet. The guide posts 222 on both sides of the chassis 220 are inserted into the guide grooves 321 through the inlets and slide along the guide grooves 321, thereby playing a guiding role. It can be understood that in some embodiments, the openings of the two guide grooves 321 can be set upwards, and the two guide posts 222 protrude from the bottom plate of the chassis 220, so that the guide posts 222 can be placed in the guide grooves 321, and the specific design is not limited.

[0073] Reference Figure 8 and Figure 9 As shown, the second support member 320 is provided with an upper baffle 322, a lower baffle 323, and a side plate 324. The upper baffle 322 and the lower baffle 323 are spaced apart, and the side plate 324 is connected between the upper baffle 322 and the lower baffle 323. The upper baffle 322, the lower baffle 323, and the side plate 324 cooperate to form a guide groove 321, so that the opening of the guide groove 321 faces the horizontal direction, and the openings of the guide grooves 321 on both sides can be arranged opposite each other. The cross-section of the guide groove 321 is approximately U-shaped. Figure 10 It can be understood that the cross-sectional shapes of the guide column 222 and the guide groove 321 are matched. When the guide column 222 slides along the guide groove 321, the upper baffle 322 and the lower baffle 323 limit the guide column 222 in the height direction, and the side plate 324 limits the guide column 222 in the horizontal direction. At the same time, the two guide grooves 321 cooperate to limit the chassis 220, so that the heating module 200 is limited in four directions: up, down, left, and right. In this way, when the air handling unit is installed vertically, horizontally, or invertedly, it can be ensured that the heating module 200 will not shake or fall, and the structure is more stable and reliable.

[0074] Reference Figure 10As shown, the upper baffle 322, the lower baffle 323, and the side plate 324 are respectively provided with flanges at one end near the opening 130. The upper baffle 322 is provided with a first flange 3221, the lower baffle 323 is provided with a second flange 3231, and the side plate 324 is provided with a third flange 3241. The first flange 3221, the second flange 3231, and the third flange 3241 are bent and inclined toward the outside of the guide groove 321, so that the surfaces of the first flange 3221, the second flange 3231, and the third flange 3241 form guide slopes. Through the guidance of the guide slopes, the guide post 222 can be easily inserted into the guide groove 321 from the inlet, so as to realize the rapid positioning of the guide post 222 and the guide groove 321.

[0075] Reference Figure 6 As shown, it can be understood that after the heating module 200 is assembled in place, the second support member 320 supports and limits the chassis 220, so that the heating module 200 is reliably positioned. The heating module 200 in this embodiment of the invention also has a frame 290, which surrounds the heating unit 210. The frame 290 is fixedly connected to the first fixing plate 231. One end of the heating unit 210 is connected to the first fixing plate 231, and the other end can be connected to the frame 290, so that the heating unit 210 is supported. The housing 100 in this embodiment also has a frame 330 located in the mounting cavity 140. The guide structure also includes a third guide portion 202 and a fourth guide portion 302. The third guide portion 202 is provided on both sides of the frame 290, and the frame 330 has a fourth guide portion 302 that is slidably connected to the third guide portion 202. The extending direction of the third guide portion 202 is consistent with the extending direction of the guide groove 321.

[0076] Reference Figure 7 and Figure 8 As shown, it can be understood that the frame 290 and the first fixed plate 231 cooperate to form a roughly square support frame structure. The frame 330 is connected to the middle partition plate 300. The frame 330 is a roughly square frame structure. The side of the frame 330 facing the opening 130 is provided with a through hole 331 that matches the frame 290. When the chassis 220 moves into the mounting cavity 140 along the guide groove 321, the frame 290 and the heating unit 210 enter the frame 330 through the through hole 331. The frame 290 is guided by the third guide part 202 and the fourth guide part 302, so that the frame 290 is supported and limited, which is more conducive to the heating module 200 moving into or out of the mounting cavity 140. It should be noted that the third guide part 202 and the fourth guide part 302 can be guide structures such as guide rails, guide blocks, and guide grooves 321. For example, a guide groove 321 is provided on the side wall of the frame 330. The guide groove 321 extends from the through hole 331 to the frame 330. The frame 290 can move along the guide groove 321 through the guide rail, so that the frame 290 can be quickly positioned.

[0077] Reference Figure 7 As shown, specifically, the third guide portion 202 is a first guide rail 291 formed on both sides of the frame 290. It can be understood that the sidewall of the frame 290 has openings 292 forming a hollow structure. The upper and lower sides of the openings 292 extend outwards to form protruding edges 2911. The two protruding edges 2911 are parallel to each other and consistent with the extending direction of the guide groove 321, forming the first guide rail 291. (Refer to...) Figure 8 As shown, the frame 330 is provided with two third support members 340, which are arranged opposite to each other. The fourth guide part 302 is a second guide rail 341 formed on the third support member 340. It can be understood that the third support member 340 is a rectangular frame, and the upper and lower surfaces of the rectangular frame are parallel to each other, thereby forming the second guide rail 341.

[0078] Reference Figure 6 and Figure 11 As shown, it can be understood that the spacing between the two protruding edges 2911 of the first guide rail 291 matches the spacing between the upper and lower end faces of the third support member 340, so that the upper protruding edge 2911 abuts against the upper end face and the lower protruding edge 2911 abuts against the lower end face. That is, the third support member 340 is located between the two protruding edges 2911, thereby matching the first guide rail 291 and the second guide rail 341 to form a guiding structure. Since the third support member 340 is fixedly connected to the frame 330, the two protruding edges 2911 can move along the upper and lower end faces of the third support member 340 respectively through the support of the third support member 340, so that the frame 290 can quickly slide into or out of the frame 330, and the structure is stable and reliable. It should be noted that in some embodiments, the first guide rail 291 and the second guide rail 341 are not limited to the forms of the above embodiments. For example, the first guide rail 291 may be a guide block provided on the side wall of the frame 290, and the third support member 340 may be provided with two parallel convex edge structures to form the second guide rail 341, so that the first guide rail 291 and the second guide rail 341 can cooperate to guide each other. The specific form is not further limited.

[0079] Reference Figure 7 and Figure 8As shown, it should be noted that a first positioning part is provided on the side of the frame 290 away from the first fixing plate 231, and a second positioning part 303 is provided on the frame 330 to match and connect with the first positioning part. In this embodiment, the first positioning part consists of multiple positioning posts (not shown in the figure) provided on the side wall of the frame 290, and the second positioning part 303 consists of multiple positioning holes 332 provided on the inner wall of the frame 330. When the frame 290 is inserted into the frame 330 and assembled in place, the positioning posts are inserted into the positioning holes 332 for positioning. It can be understood that by guiding the third guide part 202 and the fourth guide part 302, it can be ensured that the positioning posts can be accurately inserted into the positioning holes 332 without manual operation for positioning. This avoids the mismatch between the positioning posts and the positioning holes 332 due to gravity or manufacturing precision issues, reduces the difficulty of assembling the whole machine, and helps to improve production efficiency.

[0080] It should be noted that, Figure 3 In the embodiment shown, the heating module 200 can also be positioned by the first positioning part and the second positioning part 303 of the above structure. For details, please refer to the structure of the above embodiment, which will not be repeated here.

[0081] Reference Figure 6 As shown, after the heating module 200 is assembled, the frame 290 and the heating unit 210 are located within the frame 330, and the heating unit 210 can be located within the air duct, allowing airflow to pass through the heating unit 210 for heating. It is understood that the first fixing plate 231 matches the through hole 331 of the frame 330, enabling the first fixing plate 231 to block airflow leakage and also to provide heat insulation, reducing the impact of heat on the electronic control components. It is understood that the heating module 200 can be equipped with multiple heating units 210 according to actual application requirements. For example, each heating unit 210 has a power of 5kW, and through the combination structure of multiple heating units 210, the heating power can reach 10kW, 15kW, 25kW, etc.

[0082] Reference Figure 13As shown, the heating unit 210 includes a heating wire and a support 212. The heating wire is wound in a spiral to form six heating elements 211, each of which is cylindrical. The six heating elements 211 are fixedly connected to the support 212, which is fixedly connected to the first fixing plate 231 via a connector. It should be noted that the support 212 can be connected to the heating wire using an insulating component to ensure the insulation performance of the heating module 200. In addition, each heating unit 210 is equipped with a thermostat 213 and a fuse 214. The thermostat 213 and the fuse 214 are fixedly connected to the first fixing plate 231 via a connector, and the thermostat 213 and the fuse 214 are located on one side of the first fixing plate 231, while the heating unit 210 is located on the other side of the first fixing plate 231, thus separating the heating wire from the thermostat 213 and the fuse 214. The heating wire is connected to a thermostat 213 and a fuse 214 at its two ends. Current enters through the thermostat 213, passes through the heating wire, and exits through the fuse 214. The thermostat 213 can monitor the heating temperature of the heating wire in real time, and the output power can be adjusted according to the detected temperature value to control the heating temperature. When a fault such as a short circuit occurs in the heating wire, excessive current will trigger the fuse 214 to disconnect the power, meeting the safety protection requirements.

[0083] Reference Figure 13 As shown, in this embodiment, six heating elements 211 are arranged at intervals along the horizontal direction, so that each heating unit 210 has only one layer of heating elements 211, forming a 1*6 structure. Figure 3 The embodiment shown is for illustrative purposes only. The heating power of the heating module 200 is 15 kW, and the heating power of each heating unit 210 is 5 kW. A combination structure of three heating units 210 is adopted. The three heating units 210 are arranged along the height direction of the heating module 200. When working, the airflow can carry away the heat generated by the heating units 210 to achieve the purpose of heating.

[0084] Reference Figure 14 As shown in the embodiment, along the height direction of the heating unit 210, the six heating elements 211 are divided into two groups arranged at intervals, with each group including three heating elements 211. That is, the heating unit 210 includes two layers of heating elements 211, forming a 2*3 structure. The heating module 200 using the heating unit 210 with the above structure can achieve a more flexible combination method. Figure 7 The illustrated embodiment is for illustrative purposes only. The heating module 200 has a heating power of 25 kW, and each heating unit 210 has a heating power of 5 kW. A combination structure of five heating units 210 is used, wherein three of the heating units 210 employ... Figure 13 The structure of the embodiment shown is arranged such that the other two heating units 210 adopt... Figure 14The structures in the illustrated embodiment are arranged on the same or different sides of the three heating units 210, so that the total number of heating element 211 layers in the heating module 200 does not exceed three layers; alternatively, all five heating units 210 may employ... Figure 13 The structures shown in the embodiments can be combined to create more flexible combinations.

[0085] It should be noted that continued reference is necessary. Figure 7 The embodiment shown employs Figure 13 In the 1*6 structure of the embodiment, five heating units 210 are arranged along the height direction to form a five-layer heating element 211 structure. Considering that the airflow flows from bottom to top, the temperature of each layer of heating units 210 will rise, and the temperature of the top layer will reach its maximum, which can easily activate the temperature controller 213 and cause a temperature loss problem. Figure 14 In the 2*3 structure of the embodiment, the number of layers of the heating element 211 can be reduced to three, so the heating temperature of the top layer is also reduced accordingly. This makes the overall spatial structure of the heating module 200 more streamlined and reduces the temperature of the top layer. In addition, the proportion of the heating module 200 in the cross-section of the air outlet 120 is increased, which enables more efficient heat dissipation, promotes uniform heat dissipation, shortens the heat dissipation time, and reduces the temperature accumulation at height, effectively reducing the possibility of heat loss.

[0086] Reference Figure 3 and Figure 7 As shown, in some embodiments, the chassis 220, the first fixing plate 231, and the second fixing plate 232 cooperate to form an installation space 203. The first fixing plate 231 and the second fixing plate 232 are connected by a connecting rod 233 for reinforcement. The electrical control device includes a relay 240, which is mounted on the chassis 220 and located within the installation space 203 for easy wiring. The relay 240 includes four high-voltage lines and two low-voltage lines. The two high-voltage lines are connected to the thermostat 213 and the fuse 214, and the other two high-voltage lines are connected to the air switch 260. The two low-voltage lines are connected to the control board of the air handling unit for controlling the operation of the circuit breaker.

[0087] It should be noted that since the air switch 260 requires manual operation, it is mounted on the second fixing plate 232, and corresponding holes are provided on the panel 110 to facilitate operation of the air switch 260 from the outside of the housing 100. Furthermore, the second fixing plate 232 is also equipped with a terminal block 270 and a busbar 280. The wiring of the heating unit 210 is connected via the terminal block 270, and the wiring is connected to the air switch 260 via the busbar 280, which simplifies the wiring of the heating module 200 and facilitates assembly.

[0088] Reference Figure 3 and Figure 7 As shown, in some embodiments, the heating module 200 is also provided with a handle 250. The handle 250 is rotatably connected to the side of the second fixing plate 232 away from the heating unit 210. The handle 250 can be rotated around the connection point to unfold, making it easier to hold the handle 250 and pull out the heating module 200, thus making operation more convenient. Figure 3 The diagram shows the handle 250 in its unfolded state; after the heating module 200 is assembled, the handle 250 rotates and folds, so that the handle 250 overlaps the second fixing plate 232, that is, the handle 250 is stored away, as shown. Figure 7 The handle 250 is shown in its folded state. At this time, the handle 250 will not interfere with the panel 110, thus avoiding the handle 250 being exposed and making the structural design more reasonable.

[0089] Reference Figure 7 and Figure 12 As shown, the second fixing plate 232 is provided with a connecting plate 2321. The handle 250 is rotatably connected to the connecting plate 2321 by rivets or screws. The connecting plate 2321 is provided with a first limiting part 2322 and a second limiting part 2323. The first limiting part 2322 and the second limiting part 2323 cooperate to limit the rotation of the handle 250 between the unfolded state and the folded state, so that the handle 250 can be accurately positioned. In the embodiment, the first limiting part 2322 is a first protrusion formed on the connecting plate 2321, and the second limiting part 2323 is a second protrusion formed on the connecting plate 2321. The handle 250 is provided with a limiting hole. When the handle 250 is rotated to the unfolded state, the first protrusion is inserted into the limiting hole; when the handle 250 is rotated to the folded state, the second protrusion is inserted into the limiting hole, so that the handle 250 is effectively positioned in both the unfolded and folded states, the structure is more stable, and the operation is simpler. It should be noted that the first and second protrusions in the embodiment are formed by stamping, and the first limiting part 2322 and the second limiting part 2323 can also be other forms of structure, which are not specifically limited here.

[0090] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An electrically heated chamber section, characterized in that, include: A heating module includes a heating unit and a chassis. The chassis has a fixing part, the heating unit is fixedly connected to the fixing part, and the chassis has a first guide part. The housing has an opening on one side and a panel that covers the opening. The housing has a mounting cavity that communicates with the opening. The housing has a second guide portion that is slidably connected to the first guide portion, so that the heating module can slide into or out of the mounting cavity. The fixing part includes a first fixing plate and a second fixing plate that are spaced apart. The first fixing plate and the second fixing plate are respectively disposed on both sides of the chassis along its width direction, and the heating unit is connected to one side of the first fixing plate. The first guide portion is a guide post formed on both sides of the chassis, the guide post extending along the width direction of the chassis. The housing is provided with a central partition plate located at the bottom of the mounting cavity. Second support members are respectively provided on both sides of the central partition plate. The second guide portion is a guide groove formed on the second support member, the guide groove extending along the width direction of the chassis. The chassis can be moved along the extension direction of the guide groove by the cooperation of the guide post and the guide groove. The heating module also includes a frame surrounding the heating unit, the frame being fixedly connected to the first fixing plate, one end of the heating unit being connected to the first fixing plate, and the other end being connected to the frame; the housing also includes a frame located within the mounting cavity, the two sides of the frame being respectively provided with third guide portions, the frame being provided with a fourth guide portion slidably connected to the third guide portions, and the extension direction of the third guide portion being consistent with the extension direction of the guide groove. The frame has a through hole on the side facing the opening that matches the sidewall; when the chassis enters the mounting cavity along the guide groove, the sidewall and the heating unit enter the frame from the through hole, and the sidewall is guided by the cooperation of the third guide part and the fourth guide part.

2. The electrically heated chamber section according to claim 1, characterized in that, The edge of the chassis is bent to form at least two consecutive bent segments, which surround the guide post. The second support member is provided with an upper baffle, a lower baffle, and a side plate. The upper baffle, the lower baffle, and the side plate surround the guide groove, and the openings of the two guide grooves are arranged opposite each other.

3. The electrically heated chamber section according to claim 2, characterized in that, The upper baffle, the lower baffle, and the side plate are each provided with a flange at one end near the opening. The flange is bent toward the outside of the guide groove, so that the surface of the flange forms an inclined surface.

4. The electrically heated chamber section according to claim 1, characterized in that, The third guide portion is a first guide rail formed on both sides of the frame. The frame is provided with two third support members arranged opposite to each other. The fourth guide portion is a second guide rail formed on the third support member. The first guide rail and the second guide rail are slidably connected.

5. The electrically heated chamber section according to claim 1, characterized in that, The side of the frame away from the fixing part is provided with a first positioning part, and the frame is provided with a second positioning part that matches and connects with the first positioning part, so that the frame can be positioned within the frame.

6. The electrically heated chamber section according to claim 1, characterized in that, The heating module is provided with multiple heating units, each heating unit including a heating wire and a bracket. The heating wire is wound to form multiple heating elements, the heating elements are fixedly connected to the bracket, and the bracket is fixedly connected to the fixing part.

7. The electrically heated chamber section according to claim 6, characterized in that, The heating unit is provided with six heating elements. Along the height direction of the heating unit, the six heating elements are divided into two groups arranged at intervals, and each group includes three heating elements.

8. The electrically heated chamber section according to claim 1, characterized in that, The second fixing plate has a rotatable handle on the side away from the heating unit.

9. The electrically heated chamber section according to claim 8, characterized in that, The second fixing plate is provided with a connecting plate, and the handle is rotatably connected to the connecting plate. The connecting plate is provided with a first limiting part and a second limiting part. The first limiting part and the second limiting part cooperate to limit the handle to rotate between the unfolded state and the folded state.

10. The electrically heated chamber section according to claim 8, characterized in that, The electric heating chamber also includes an electronic control device connected to the heating unit. The chassis, the first fixing plate, and the second fixing plate cooperate to form an installation space, and the electronic control device is installed in the installation space.

11. An air handling unit, characterized in that, Includes the electrically heated chamber section as described in any one of claims 1 to 10.

Images