Air conditioner

Abstract

The utility model discloses an air conditioner which comprises a shell, an electric control box, a main control board and a power supply terminal strip, the power supply terminal strip comprises an insulating frame, a plurality of current carriers and a zero-sequence coil, the zero-sequence coil is arranged on the insulating frame, all the current carriers are arranged in the zero-sequence coil in a surrounding manner, and an outgoing line of the zero-sequence coil is connected with the main control board. The power supply terminal strip comprises the zero-sequence coil, and the zero-sequence coil is arranged on the insulating frame of the power supply terminal strip, namely is integrated on the power supply terminal strip, so that idle space on the power supply terminal strip can be fully utilized, other space of the electric control box does not need to be occupied, the miniaturization design of the electric control box is facilitated, and the cost is reduced. And avoiding space is provided for wiring of other electric devices on the electric control box, and wiring of the electric control box is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, and specifically relates to an air conditioner. Background Technology

[0002] The current design trend for air conditioners is to maximize the area of ​​the heat exchanger within a limited space in order to achieve higher capacity and energy efficiency. Consequently, the space of the control system is being continuously compressed, which requires the continuous integration of electronic control components and the minimization of the size of the control box, so as to achieve the desired function while minimizing space occupation.

[0003] To ensure the safe use of air conditioners, most existing air conditioners have leakage current protection functions. This is achieved by adding a zero-sequence coil to the air conditioner's circuit. The working principle of the zero-sequence coil is as follows: The zero-sequence coil is a magnetic ring with a coil wound around it. Taking a single-phase power supply as an example, the zero-sequence coil is wrapped around the power line. Under normal circumstances, current flows in and out, and the current flowing through the middle of the coil is zero, so no magnetic field is generated in the magnetic ring. When leakage occurs, the current flowing into and out of the power line is unequal, and the magnetic ring generates an induced magnetic field. According to the law of electromagnetic induction, the coil wound around the magnetic ring will generate a voltage. This voltage is supplied to the control circuit, thus realizing the leakage detection function.

[0004] In existing technologies, such as Figure 1 As shown, the zero-sequence coil 1 is located inside the control box 2 and is directly sleeved on the power cord 3. The lead wire of the zero-sequence coil 1 is connected to the main control board 4 (specifically the control circuit on the main control board 4) inside the control box 1 to transmit control signals to the main control board 4. The power cord 3 is connected to the power terminal block 5 inside the control box 1. The zero-sequence coil 1 is located outside the power terminal block 5, occupying a large space, which affects the miniaturization design of the control box 2 and also affects the wiring design of the control box 2.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0006] In response to the problems pointed out in the background art, this utility model proposes an air conditioner that integrates the zero-sequence coil inside the power terminal block, without occupying additional space in the electrical control box, thereby reducing the size of the electrical control box and facilitating the wiring design of the electrical control box.

[0007] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0008] In some embodiments of this application, an air conditioner is provided, comprising:

[0009] case;

[0010] An electrical control box is located inside the housing;

[0011] The main control board is located on the electrical control box;

[0012] A power terminal block, disposed on the electrical control box; the power terminal block includes:

[0013] An insulating frame having multiple fluid-carrying accommodating portions arranged sequentially along a first direction;

[0014] Multiple fluid carriers are provided, each corresponding to a multiple fluid carrier receiving portion. Each fluid carrier is disposed on a corresponding fluid carrier receiving portion, and each fluid carrier is provided with two wiring fasteners.

[0015] A zero-sequence coil is disposed on the insulating frame and encloses all the current-carrying elements therein, and the leads of the zero-sequence coil are connected to the main control board.

[0016] The air conditioner described above has the following advantages or beneficial effects:

[0017] The power terminal block in this application includes a zero-sequence coil. The zero-sequence coil is located on the insulating frame of the power terminal block, that is, integrated on the power terminal block. This can make full use of some idle space on the power terminal block, so as not to occupy other space of the electrical control box. This is conducive to the miniaturization design of the electrical control box, and provides avoidance space for the wiring of other electrical components on the electrical control box, making the wiring of the electrical control box convenient.

[0018] The zero-sequence coil is integrated on the power terminal block. The control box and its internal electrical components are already installed on the air conditioner before it is installed at the user's end, eliminating the need for on-site installation and avoiding omissions.

[0019] In some embodiments of this application, the fluid-carrying accommodating part is a fluid-carrying accommodating tank;

[0020] A zero-sequence coil receiving slot is formed within the insulating frame. The zero-sequence coil receiving slot is connected to the fluid-carrying receiving slot and surrounds all the fluid-carrying receiving slots. The zero-sequence coil is embedded in the zero-sequence coil receiving slot.

[0021] The air conditioner in the above technical solution has the following advantages or beneficial effects: by setting the fluid carrier housing as a slot-shaped structure on the insulating frame, and setting the zero-sequence coil housing as a slot-shaped structure on the insulating frame, the fluid carrier and the zero-sequence coil can be installed in a built-in manner on the insulating frame, making full use of the internal space of the frame and further reducing space occupation.

[0022] In some embodiments of this application, the fluid carrier includes a connecting portion and two oppositely arranged wiring portions. The connecting portion is located on one side of the two wiring portions and connects the two wiring portions. The two wiring portions are spaced apart along a second direction, which is perpendicular to the first direction. The two wiring fasteners are respectively provided on the two wiring portions and spaced apart by a certain distance in the second direction.

[0023] The air conditioner in the above technical solution has the following advantages or beneficial effects: Through the above structure and positional relationship, a reasonable layout of the installation positions of the fluid carrier, wiring fasteners and zero-sequence coil is achieved, making the power terminal block structure more compact; and it can ensure that the fluid carrier passes through the zero-sequence coil, thereby ensuring the leakage protection function of the zero-sequence coil.

[0024] In some embodiments of this application, the fluid-carrying accommodating groove extends along the second direction and is through at both ends; the two wiring portions are respectively located at the opening of the fluid-carrying accommodating groove, and the wiring fasteners protrude to the outside of the fluid-carrying accommodating groove.

[0025] The air conditioner in the above technical solution has the following advantages or beneficial effects: the above structure facilitates the wiring operation of the power cord by the wiring fastener.

[0026] In some embodiments of this application, the insulating frame is a spliced ​​structure, including a first end frame, a middle frame and a second end frame that are sequentially arranged and connected as a whole along a first direction;

[0027] The first end frame and the adjacent intermediate frame form a fluid-carrying accommodating groove at one end, the second end frame and the adjacent intermediate frame form a fluid-carrying accommodating groove at the other end, and two adjacent intermediate frames form a fluid-carrying accommodating groove in the middle region.

[0028] The first end frame, the middle frame, and the second end frame together form the zero-sequence coil receiving slot.

[0029] The air conditioner in the above technical solution has the following advantages or beneficial effects: the insulating frame adopts a spliced ​​structure, and correspondingly, the current-carrying accommodating slot and the zero-sequence coil accommodating slot are also spliced ​​structures, which facilitates the installation of the current-carrying and zero-sequence coils built into the terminal block; at the same time, the spliced ​​insulating frame structure also facilitates the assembly of power terminal blocks of various numbers according to actual working conditions, which is conducive to functional expansion and improves versatility.

[0030] In some embodiments of this application, the first end frame and the adjacent intermediate frame are provided with mutually cooperating connection and positioning structures;

[0031] The second end frame and the adjacent intermediate frame are provided with mutually cooperating connection and positioning structures;

[0032] The two adjacent intermediate frames are provided with mutually cooperating connection and positioning structures.

[0033] The air conditioner in the above technical solution has the following advantages or beneficial effects: by setting a connection and positioning structure, it is easy for each part to be reliably positioned when the spliced ​​insulating frame is assembled, thereby facilitating assembly and improving assembly efficiency.

[0034] In some embodiments of this application, the first end frame, the middle frame, and the second end frame are detachably connected in sequence.

[0035] The air conditioner in the above technical solution has the following advantages or beneficial effects: the various parts of the insulating frame can be detached and connected, which facilitates disassembly, maintenance, and increasing or decreasing the number of units.

[0036] In some embodiments of this application, the first end frame, the intermediate frame, and the second end frame are detachably connected by a plurality of long bolts arranged circumferentially, and each of the long bolts passes through the first end frame, the intermediate frame, and the second end frame in sequence.

[0037] The air conditioner in the above technical solution has the following advantages or beneficial effects: the first end frame, the middle frame and the second end frame are connected in one go by a common long bolt, which eliminates the need for step-by-step installation of each component and can further improve assembly efficiency.

[0038] In some embodiments of this application, the power terminal block further includes:

[0039] Multiple insulating partitions are disposed on the insulating frame and arranged sequentially along the first direction. A wiring fastener accommodating space is formed between two adjacent insulating partitions. The wiring fastener accommodating space corresponds one-to-one with the fluid carrier. Two wiring fasteners on each fluid carrier are located in the corresponding wiring fastener accommodating space.

[0040] The air conditioner in the above technical solution has the following advantages or beneficial effects: by blocking the wiring parts of multiple fluid-carrying parts through the insulating partition, the connection points of multiple power lines can be blocked, which can avoid the phenomenon of contact between power line connectors, thereby improving the overall safety of the power terminal block.

[0041] In some embodiments of this application, the insulating partition and the insulating frame are integrally injection molded structures.

[0042] The air conditioner in the above technical solution has the following advantages or beneficial effects: the insulating partition and the insulating frame are integrally injection molded structures, forming an integral structural component, which is convenient for processing and assembly.

[0043] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 An exemplary schematic diagram of the internal structure of the electrical control box of an air conditioner in the prior art is shown;

[0046] Figure 2 An exemplary schematic diagram of the structure of an air conditioner from a rear view according to some embodiments is shown;

[0047] Figure 3 An exemplary perspective view of a power terminal block according to some embodiments is shown;

[0048] Figure 4 An exemplary perspective view of the power terminal block according to some embodiments is shown;

[0049] Figure 5 for Figure 4 View from direction A;

[0050] Figure 6 for Figure 5 BB section view;

[0051] Figure 7 for Figure 5 CC section view;

[0052] Figure 8 An exemplary schematic diagram illustrates the relative position structure of the zero-sequence coil and the current carrier of a power supply terminal block according to some embodiments;

[0053] Figure 9 An exemplary perspective view is shown, according to some embodiments, of a power terminal block with one current carrier and two wire fasteners thereon omitted;

[0054] Figure 10 for Figure 9 Enlarged view of part D;

[0055] Figure 11 An exemplary perspective view of the first end frame of the insulating frame of a power terminal block according to some embodiments is shown;

[0056] Figure 12 An exemplary perspective view of the middle frame of the insulating frame of a power terminal block according to some embodiments is shown.

[0057] Figure 13 An exemplary perspective view of the middle frame of the insulating frame of the power terminal block according to some embodiments is shown from another angle.

[0058] Figure 1 Chinese figure labels:

[0059] 1. Zero-sequence coil; 2. Electrical control box; 3. Power cord; 4. Main control board; 5. Power terminal block;

[0060] Figures 2 to 13 Figure label:

[0061] 100. Power terminal block; 110. Insulating frame; 111. Current-carrying groove; 112. Zero-sequence coil groove; 113. First end frame; 114. Intermediate frame; 115. Second end frame; 116. Positioning step; 120. Current-carrying component; 121. Wiring fastener; 122. Connecting part; 123. Wiring part; 130. Zero-sequence coil; 131. Lead wire; 140. Long bolt; 150. Insulating partition; 151. First insulating partition; 152. Second insulating partition; 160. Wiring fastener receiving space;

[0062] 200. Electrical control box;

[0063] 300. Shell. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0065] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 application 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 limitations on this application.

[0066] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0067] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0070] In this application, the air conditioner performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

[0071] Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0072] The expansion valve expands the high-temperature, high-pressure liquid refrigerant that condenses in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0073] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit.

[0074] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0075] Reference Figures 2 to 13 In some embodiments of this application, an air conditioner is proposed, which may be an outdoor unit or an indoor unit, and includes a housing 300, an electrical control box 200, a power terminal block 100 and a power cord (not shown in the figure).

[0076] The housing 300 defines the external outline of the air conditioner. Taking the outdoor unit as an example, the housing 300 defines the external outline of the outdoor unit. The outer outline of the housing 300 is cuboid, including a top plate, a bottom plate, and circumferential side plates. The circumferential side plates are composed of a front panel, a rear panel, a left side panel, and a right side panel. The circumferential side plates are provided with air inlets and air outlets. The air inlet is equipped with an air inlet grille, and the air outlet is equipped with an air outlet grille. The compressor, heat exchanger, throttling device, electrical control box 200, outdoor fan, etc. are located in the internal space enclosed by the housing 300.

[0077] The electrical control box 200 is located inside the housing 300. The electrical control box 200 contains some electronic components required for the operation of the air conditioner, such as the main control board and the power terminal block 100.

[0078] The power terminal block 100 is used to connect the part of the power cord inside the air conditioner and the part leading out to the outside of the air conditioner to supply power to the various electrical components of the air conditioner.

[0079] In some embodiments of this application, such as Figures 4 to 10As shown, the power terminal block 100 includes an insulating frame 110, and a plurality of fluid-carrying accommodating portions are arranged sequentially on the insulating frame 110 along a first direction. The fluid-carrying accommodating portions are used to install and accommodate fluid 120.

[0080] The power terminal block 100 includes multiple fluid carriers 120, the number of which is equal to the number of fluid carrier accommodating parts. Each fluid carrier 120 is disposed on a corresponding fluid carrier accommodating part, and each fluid carrier 120 is provided with two wiring fasteners 121, which are used for wiring the part of the power cord leading out to the outside of the air conditioner and wiring the part inside the air conditioner, respectively.

[0081] Taking a three-phase power supply line as an example, the power terminal block 100 includes three current-carrying devices 120, namely... Figure 4 Taking the fluid carrier 120 corresponding to L1 as an example, the power cord connected to the fluid carrier 120 at this location is located inside the air conditioner. One end is connected to each electrical component of the air conditioner, and the other end is connected to the fluid carrier 120 by a fastener 121. This wiring is completed before the air conditioner leaves the factory. The power cord connected to the fluid carrier 120 at L1 is led out to the outside of the air conditioner. One end is connected to the fluid carrier 120 by another fastener 121, and the other end is led out to the outside of the air conditioner to connect to the power supply.

[0082] The wiring of the power lines on the fluid carriers 120 corresponding to L2 and L3 is set up in the same way, and will not be described again here.

[0083] like Figures 6 to 8 As shown, the power terminal block 100 includes a zero-sequence coil 130 to realize the leakage protection function of the air conditioner. The principle of the zero-sequence coil 130 realizing the leakage protection function is the same as the existing technology, and will not be described in detail here.

[0084] The zero-sequence coil 130 is mounted on the insulating frame 110 and encloses all the fluid carriers 120 within it. The lead wire 131 of the zero-sequence coil 130 is connected to the main control board. That is, the zero-sequence coil 130 encloses all the fluid carriers 120 together, and each fluid carrier 120 passes through the zero-sequence coil 130.

[0085] In this application, the power terminal block 100 includes a zero-sequence coil 130. The zero-sequence coil 130 is integrated on the power terminal block 100, which can make full use of some idle space on the power terminal block 100 to install the zero-sequence coil 130, so as not to occupy other space of the electrical control box 200. This is conducive to the miniaturization design of the electrical control box 200, and provides avoidance space for the wiring of other electronic components on the electrical control box 200, which facilitates the wiring design of the electrical control box 200.

[0086] In addition, the zero-sequence coil 130 is integrated on the power terminal block 100. Before the air conditioner is installed at the user end, the electrical control box 200 and its internal electronic components are already installed on the air conditioner, eliminating the need for on-site installation, avoiding omissions, and improving the reliability of the leakage protection function.

[0087] In some embodiments of this application, such as Figure 3 and Figure 4 , Figures 6 to 9 From the perspective shown, the lateral dimension of the power terminal block 100 is greater than its longitudinal dimension and also greater than its vertical (i.e., Z-direction) dimension. Multiple fluid-carrying accommodating portions are arranged at lateral intervals along the power terminal block 100, i.e., the first direction is lateral.

[0088] In some embodiments of this application, to further make full use of the internal space of the insulating frame 110, such as Figure 6 and Figure 7 , Figure 9 and Figure 10 As shown, the fluid-carrying accommodating part is a fluid-carrying accommodating groove 111, which is a groove-shaped structure formed in the insulating frame 110.

[0089] Accordingly, such as Figure 6 and Figure 7 As shown, a zero-sequence coil receiving groove 112 is formed inside the insulating frame 110. The zero-sequence coil receiving groove 112 is connected to the fluid-carrying receiving groove 111 and surrounds all the fluid-carrying receiving grooves 111 inside. The zero-sequence coil 130 is embedded in the zero-sequence coil receiving groove 112.

[0090] By setting both the current-carrying portion and the zero-sequence coil 130 receiving portion as slot-shaped structures on the insulating frame 110, the current-carrying portion 120 and the zero-sequence coil 130 can be built-in on the insulating frame 110, making full use of the internal space of the insulating frame 110, reducing the volume of the insulating frame 110, reducing the space occupied on the electrical control box 200, and further reducing the volume of the electrical control box 200.

[0091] In some embodiments of this application, such as Figure 6 and Figure 8 As shown, the fluid carrier 120 includes a connecting part 122 and two oppositely arranged wiring parts 123. The connecting part 122 is located on one side of the two wiring parts 123 and connects the two wiring parts 123, so that the fluid carrier 120 as a whole is U-shaped frame with an opening to one side. The two wiring parts 123 are spaced apart along a second direction, which is perpendicular to the first direction. Two wiring fasteners 121 are respectively provided on the two wiring parts 123 and spaced apart by a certain distance in the second direction.

[0092] The zero-sequence coil 130 is located at the middle position of the two wiring fasteners 121.

[0093] by Figure 3 and Figure 4 , Figures 6 to 9 Taking the perspective shown as an example, if the first direction is horizontal, then the second direction is vertical, meaning that the two wiring sections 123 are set vertically and horizontally.

[0094] In the second direction, the zero-sequence coil 130 is located in the middle of the upper and lower wiring portions 123.

[0095] Through the above-described structure of the fluid carrier 120 and its positional relationship with the zero-sequence coil 130, a reasonable layout of the installation positions of the fluid carrier 120, the wiring fastener 121, and the zero-sequence coil 130 is achieved, making the power terminal block 100 structure more compact; and ensuring that the fluid carrier 120 passes through the zero-sequence coil 130, thereby ensuring the reliability of the leakage protection function of the zero-sequence coil 130.

[0096] like Figure 6 and Figure 7 , Figure 9 and Figure 10 As shown, the fluid carrier accommodating groove 111 extends along the second direction and passes through the insulating frame 110 at both ends; the two wiring portions 123 of each fluid carrier 120 are located at the opening of the fluid carrier accommodating groove 111, and the wiring fastener 121 protrudes to the outside of the fluid carrier accommodating groove 111 to facilitate the wiring operation of the power cord by the wiring fastener 121.

[0097] In some embodiments of this application, a positioning step 116 is formed on the opening of the fluid-carrying accommodating groove 111, and the wiring portion 123 is supported and abutted against the positioning step 116 to stabilize the position of the fluid-carrying 120.

[0098] Since the zero-sequence coil 130 is located inside the insulating frame 110, for ease of installation, refer to... Figures 11 to 13 At the same time, combined Figures 3 to 10 In some embodiments of this application, the insulating frame 110 is a spliced ​​structure, including a first end frame 113, a middle frame 114 and a second end frame 115. The first end frame 113, the middle frame 114 and the second end frame 115 are arranged sequentially along a first direction and connected as a whole.

[0099] The first end frame 113 and the second end frame 115 are each provided in one form, and their structures are similar. The number of intermediate frames 114 depends on the specific number of digits in the power terminal block 100, and no specific limit is imposed here. For example, if the power terminal block 100 has three digits, the number of intermediate frames 114 is two.

[0100] The first end frame 113 and the adjacent intermediate frame 114 form a fluid-carrying accommodating groove 111 at one end, such as the leftmost first fluid-carrying accommodating groove 111.

[0101] The second end frame 115 and the adjacent middle frame 114 form a fluid-carrying accommodating groove 111 at the other end, such as the rightmost fluid-carrying accommodating groove 111, which is also the third fluid-carrying accommodating groove 111.

[0102] Two adjacent intermediate frames 114 enclose a fluid-carrying trough 111 in the middle area, such as the middle fluid-carrying trough 111, which is the second fluid-carrying trough 111.

[0103] The first end frame 113, the middle frame 114, and the second end frame 115 together form the zero-sequence coil receiving slot 112.

[0104] The insulating frame 110 adopts a splicing structure, which makes the current-carrying groove 111 and the zero-sequence coil groove 112 also splicing structures, which facilitates the installation of the current-carrying groove 120 and the zero-sequence coil 130 built into the terminal block. At the same time, the splicing structure of the insulating frame 110 also makes it easy to assemble power terminal blocks 100 of various numbers according to actual working conditions, which is beneficial to functional expansion and improves versatility.

[0105] In some embodiments of this application, such as Figure 7 , Figures 11 to 13 As shown, the first end frame 113 and the adjacent intermediate frame 114 are provided with a connecting positioning structure that cooperates with each other to play a pre-positioning role when the two are assembled, thereby improving the assembly efficiency.

[0106] The second end frame 115 and the adjacent intermediate frame 114 are provided with a matching connection and positioning structure to play a pre-positioning role when the two are assembled, thereby improving assembly efficiency.

[0107] The two adjacent intermediate frames 114 are provided with mutually cooperating connection and positioning structures to play a pre-positioning role when the two are assembled, thereby improving assembly efficiency.

[0108] This ensures that each part can be reliably positioned during the assembly of the insulation frame 110, thereby facilitating assembly and improving assembly efficiency.

[0109] In some embodiments of this application, the connection positioning structure may be a matching structure of positioning protrusion and positioning groove, or other positioning mark structure, etc., and no specific limitation is made here.

[0110] In some embodiments of this application, the first end frame 113, the middle frame 114, and the second end frame 115 are detachably connected in sequence, which facilitates disassembly and maintenance or increases or decreases the number of power terminal blocks 100.

[0111] In some embodiments of this application, the first end frame 113, the middle frame 114, and the second end frame 115 are detachably connected by multiple long bolts 140 arranged circumferentially, and each long bolt 140 passes through the first end frame 113, the middle frame 114, and the second end frame 115 in sequence to achieve the connection.

[0112] That is, each long bolt 140 connects the first end frame 113, the intermediate frame 114 and the second end frame 115 simultaneously. The first end frame 113 and the intermediate frame 114 do not need to be connected by a separate connecting component. Adjacent intermediate frames 114 do not need to be connected by a separate connecting component. The intermediate frames 114 and the second end frame 115 do not need to be connected by a separate connecting component. The three are connected in one go by a common long bolt 140, which can further improve assembly efficiency.

[0113] Multiple long bolts 140 are arranged circumferentially to connect the first end frame 113, the middle frame 114 and the second end frame 115, which can ensure the reliability of the connection.

[0114] In some embodiments of this application, such as Figure 7 , Figures 11 to 13 As shown, taking the first end frame 113, the middle frame 114, and the second end frame 115 as an example connected by four long bolts 140, the first end frame 113 has a hollow positioning post a corresponding to two of the long bolts 140, and a positioning hole b corresponding to the other two long bolts 140. The middle frame 114 adjacent to it has a positioning hole b and a hollow positioning post a corresponding to one side, and a hollow positioning post a and a positioning hole b corresponding to the other side. The second end frame 115 has a hollow positioning post a and a positioning hole b corresponding to it.

[0115] During assembly, the hollow positioning post a and positioning hole b of the first end frame 113 are inserted into the positioning hole b and hollow positioning post a of the adjacent intermediate frame 114, and the positioning holes b and hollow positioning posts a of the two adjacent intermediate frames 114 are inserted into each other. The hollow positioning post a and positioning hole b of the second end frame 115 are inserted into the positioning hole b and hollow positioning post a of the adjacent intermediate frame 114, so as to achieve positioning during assembly. That is, the positioning post and positioning hole cooperate as a connecting positioning structure to achieve positioning.

[0116] After positioning, each long bolt 140 passes sequentially through the corresponding hollow positioning post a and positioning hole b, ultimately achieving a fixed connection between the first end frame 113, the middle frame 114, and the second end frame 115. The connecting positioning structure not only serves to position the various parts but also works with the long bolts 140 for fixation, making full use of the structural components of the insulating frame 110. This helps reduce the volume of the insulating frame 110, thereby reducing space occupation and further reducing the volume of the electrical control box 200.

[0117] In some embodiments of this application, the power terminal block 100 further includes a plurality of insulating partitions 150, which are disposed on the insulating frame 110 and arranged sequentially along a first direction, with a wiring fastener receiving space 160 formed between adjacent insulating partitions 150. The wiring fastener receiving space 160 is provided in a one-to-one correspondence with the current carrier 120, and the two wiring fasteners 121 on each current carrier 120 are located within the corresponding wiring fastener receiving space 160.

[0118] like Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figures 11 to 13 As shown, taking one of the current-carrying parts 120 as an example, its corresponding left and right insulating partitions 150, each insulating partition 150 includes a first insulating partition 151 and a second insulating partition 152, the first insulating partition 151 (for example) Figure 4 The upper insulating partition shown) and one of the wiring fasteners 121 (e.g. Figure 4 Corresponding to the upper wiring fastener shown, the second insulating barrier 152 (e.g.) Figure 4 The lower insulating partition shown in the diagram) and another wiring fastener 121 (e.g. Figure 4 (The lower wiring fastener shown corresponds to this).

[0119] By isolating the wiring portions 123 of multiple current-carrying devices 120 by the insulating partition 150, the connection points of multiple power lines can be isolated, thus preventing contact between power line connectors and improving the overall safety of the power terminal block 100.

[0120] In some embodiments of this application, the insulating partition 150 is specifically a baffle that protrudes from the insulating frame 110.

[0121] In some embodiments of this application, the insulating partition 150 and the insulating frame 110 are integrally injection molded structures, which facilitates processing and assembly.

[0122] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0123] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An air conditioner, characterized in that, include: case; An electrical control box is located inside the housing; The main control board is located on the electrical control box; A power terminal block is located on the electrical control box; The power terminal block includes: An insulating frame having multiple fluid-carrying accommodating portions arranged sequentially along a first direction; Multiple fluid carriers are provided, each corresponding to a multiple fluid carrier receiving portion. Each fluid carrier is disposed on a corresponding fluid carrier receiving portion, and each fluid carrier is provided with two wiring fasteners. A zero-sequence coil is disposed on the insulating frame and encloses all the current-carrying elements therein, and the leads of the zero-sequence coil are connected to the main control board.

2. The air conditioner according to claim 1, characterized in that, The fluid-carrying accommodating part is a fluid-carrying accommodating tank; A zero-sequence coil receiving slot is formed within the insulating frame. The zero-sequence coil receiving slot is connected to the fluid-carrying receiving slot and surrounds all the fluid-carrying receiving slots. The zero-sequence coil is embedded in the zero-sequence coil receiving slot.

3. The air conditioner according to claim 2, characterized in that, The fluid carrier includes a connecting part and two oppositely arranged wiring parts. The connecting part is located on one side of the two wiring parts and connects the two wiring parts. The two wiring parts are spaced apart along a second direction, which is perpendicular to the first direction. The two wiring fasteners are respectively provided on the two wiring parts and spaced apart by a certain distance in the second direction.

4. The air conditioner according to claim 3, characterized in that, The fluid-carrying accommodating groove extends along the second direction and is through at both ends; the two wiring portions are respectively located at the opening of the fluid-carrying accommodating groove, and the wiring fasteners protrude to the outside of the fluid-carrying accommodating groove.

5. The air conditioner according to any one of claims 2 to 4, characterized in that, The insulating frame is a spliced ​​structure, including a first end frame, at least one intermediate frame and a second end frame that are sequentially arranged and connected as a whole along the first direction. The first end frame and the adjacent intermediate frame form a fluid-carrying accommodating groove at one end, the second end frame and the adjacent intermediate frame form a fluid-carrying accommodating groove at the other end, and two adjacent intermediate frames form a fluid-carrying accommodating groove in the middle region. The first end frame, the middle frame, and the second end frame together form the zero-sequence coil receiving slot.

6. The air conditioner according to claim 5, characterized in that, The first end frame and the adjacent intermediate frame are provided with mutually cooperating connection and positioning structures; The second end frame and the adjacent intermediate frame are provided with mutually cooperating connection and positioning structures; The two adjacent intermediate frames are provided with mutually cooperating connection and positioning structures.

7. The air conditioner according to claim 6, characterized in that, The first end frame, the middle frame, and the second end frame are detachably connected in sequence.

8. The air conditioner according to claim 7, characterized in that, The first end frame, the middle frame, and the second end frame are detachably connected by multiple long bolts arranged circumferentially, and each of the long bolts passes through the first end frame, the middle frame, and the second end frame in sequence.

9. The air conditioner according to claim 4, characterized in that, The power terminal block also includes: Multiple insulating partitions are disposed on the insulating frame and arranged sequentially along the first direction. A wiring fastener accommodating space is formed between two adjacent insulating partitions. The wiring fastener accommodating space corresponds one-to-one with the fluid carrier. Two wiring fasteners on each fluid carrier are located in the corresponding wiring fastener accommodating space.

10. The air conditioner according to claim 9, characterized in that, The insulating barrier and the insulating frame are integrally injection molded structures.

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