Electric appliance chamber and water heater

Abstract

The utility model relates to an electric appliance chamber and a water heater, and belongs to the technical field of water heaters. The electric appliance chamber comprises a shell, a fastening assembly and a power panel, a mounting groove is formed in the shell, the power panel is inserted into the mounting groove through a notch of the mounting groove, the fastening assembly comprises a buckling piece, the buckling piece is located at the notch and connected with the shell, the buckling piece is configured to be in clearance fit with the power panel, and / or the mounting groove is configured to be in clearance fit with the power panel. Therefore, a movable gap is formed between at least one of the fastener and the mounting groove and the power panel, the power panel moves or slightly deforms in the mounting groove to buffer impact when the water heater is impacted, stress is prevented from being formed on the power panel in a normal state, and the mounting stability of the power panel is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of water heaters, and in particular, relates to an electrical room and a water heater. Background Art

[0002] For a water heater, the input power needs to be converted into stable direct current through a power board, and the operating power of the water heater is thereby controlled.

[0003] In the prior art, the power board is usually inserted into the electrical room of the water heater. A mounting position for the power board is provided in the housing of the electrical room, one end of the mounting position is provided with a slot plugged into the edge of the power board, and the other end is provided with a fastener, which abuts against the corresponding edge of the power board, so that the power board is fixed in the slot through the fastener to prevent the power board from falling out of the mounting position.

[0004] However, there is stress between the mounting structure and the power board, and when the water heater is impacted during transportation and assembly, the power board is easily subjected to excessive stress and bends out of the mounting position or even breaks, that is, the installation stability of the power board is poor. Utility Model Content

[0005] The present application provides an electrical room and a water heater to solve the problem of poor installation stability of existing power boards.

[0006] On the one hand, the present application provides an electrical room, including a housing, a fastening assembly and a power board, the housing having a mounting slot, the power board being inserted into the mounting slot through a notch of the mounting slot, the fastening assembly including a snap-fit ​​member, the snap-fit ​​member being located at the notch and connected to the housing;

[0007] The snap-fitting member is configured to be clearance-matched with the power board;

[0008] And / or the mounting groove is configured to be loosely matched with the power board.

[0009] In a possible implementation, the electrical room provided in the present application has a relief opening on one side of the installation slot that is connected to the slot, and a portion of the power board is exposed from the installation slot through the relief opening;

[0010] The latch part extends to the avoidance opening and has a first matching gap with a side surface of the power board facing the avoidance opening.

[0011] In a possible implementation, in the electrical room provided by the present application, a connecting column is provided at the notch of the housing, the fastening assembly further includes a connecting piece and a limiting piece, and the snap-fit ​​piece is coaxially detachably connected to the connecting column through the connecting piece;

[0012] The limiting member is connected to the shell, and the limiting member is engaged with the buckle member to limit the axial rotation of the buckle member relative to the connecting column.

[0013] In a possible implementation, in the electrical room provided by the present application, the limiting member is a supporting rib provided on one side of the connecting column;

[0014] The side of the fastener facing the supporting rib is provided with a slot adapted to the supporting rib, and one end of the supporting rib facing the slot is engaged with the slot.

[0015] In a possible implementation, in the electrical room provided by the present application, the buckle comprises a buckle body, a stopper and an abutment portion, the buckle body is connected to the housing, the stopper is connected to one side of the buckle body, and the stopper is located at one side edge of the power board facing the notch;

[0016] The abutting portion is connected to the stopping portion, and the abutting portion extends perpendicularly to the avoidance opening relative to the stopping portion. The first matching gap is located between the abutting portion and a side surface of the power board facing the avoidance opening.

[0017] In a possible implementation, in the electrical room provided in the present application, a second fitting gap is provided between the stopper and an edge of a side of the power board facing the notch.

[0018] In a possible implementation, the electrical room provided by the present application has two installation posts distributed at intervals and a plug-in component located between the two installation posts on the housing, and a first slot is provided on one side opposite to the two installation posts, and the first slot extends along the axial direction of the installation posts;

[0019] The plug-in connector is located at one end of the two first slots, and the plug-in connector has a second slot facing the other end of the first slots, and the second slot and the two first slots form a mounting slot.

[0020] In a possible implementation, in the electrical room provided in the present application, a third matching gap is provided between the first slot and the second slot and the power board.

[0021] In a possible implementation, in the electrical room provided by the present application, one end of the first slot facing away from the second slot is open to form a notch;

[0022] One side of the interval between the two first slots forms an escape opening.

[0023] On the other hand, the present application provides a water heater, comprising a water heater body and any one of the above-mentioned electrical appliance chambers, wherein the electrical appliance chamber is arranged on the water heater body.

[0024] The electrical room and water heater provided by the present application have a mounting groove on the electrical room. By arranging a fastening assembly on one side of the groove of the mounting groove, at least one of the fasteners of the fastening assembly and the mounting groove is matched with the gap of the power board, forming a space for the power board to move or slightly deform in the mounting groove, so as to avoid the power board from continuously contacting with either the mounting groove or the fastener after installation to generate stress. In this way, if the water heater is impacted during assembly or transportation, the power board can move appropriately or deform slightly in the mounting groove to mitigate the impact, rather than being excessively stressed and bending, detaching from the mounting groove or even breaking under the impact of the shell on the power board, and finally achieving stable and reliable installation of the power board. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] The preferred technical implementation scheme of the present application is described below with reference to the accompanying drawings. The accompanying drawings are:

[0027] Figure 1 A partial structural schematic diagram of an electrical room provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of the structure of the power board provided in the embodiment of the present application being plugged into the installation slot of the electrical room;

[0029] Figure 3 A partial structural diagram of the electrical room from another perspective provided in an embodiment of the present application;

[0030] Figure 4 A partial structural schematic diagram of the housing structure of the electrical room provided in an embodiment of the present application;

[0031] Figure 5 for Figure 4 Schematic diagram of the structure of the middle fastener.

[0032] Description of reference numerals:

[0033] 100-housing; 110-mounting slot; 111-mounting column; 1111-first slot; 112-connector; 1121-second slot; 120-connecting column; 130-notch; 140-avoidance;

[0034] 200-fastening assembly; 210-clip member; 211-clip body; 212-stop portion; 213-abutment portion; 214-arc baffle; 2141-clip groove; 220-connecting member; 230-limiting member;

[0035] 300-power board; 310-substrate; 320-component.

[0036] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0039] In the embodiments of the present application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0040] In the prior art, the power board is usually inserted into the electrical room of the water heater. A mounting position for the power board is provided in the housing of the electrical room, one end of the mounting position is provided with a slot plugged into the edge of the power board, and the other end is provided with a fastener, which abuts against the corresponding edge of the power board, so that the power board is fixed in the slot through the fastener to prevent the power board from falling out of the mounting position.

[0041] However, when the power board is fixed in the slot by the fastener, at least one of the fastener and the slot abuts against the power board and forms stress on the power board.

[0042] If the water heater is impacted during transportation and assembly, the power board may be subjected to excessive force and bend and deform under the impact, and then fall out of the installation position or even break. Therefore, the stability of the power board installation is poor.

[0043] In order to solve the above problems, the present application provides an electrical room and a water heater, wherein a mounting groove is provided on the housing structure of the electrical room, and a fastening assembly is provided, and at least one of the fasteners in the fastening assembly and the mounting groove is used to form a clearance fit with the power board, thereby providing a movable space for the power board and preventing the power board from being subjected to continuous stress. When the water heater is impacted, the power board can move appropriately or deform slightly in the mounting groove, thereby preventing the power board from directly bearing the impact force, preventing the power board from being excessively deformed and detaching from the mounting groove or even breaking, and improving the stability of the power board installation.

[0044] Figure 1 A partial structural schematic diagram of an electrical room provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of the power board provided in the embodiment of the present application being plugged into the installation slot of the electrical room;

[0045] Figure 3 A partial structural schematic diagram of the electrical room from another perspective provided in an embodiment of the present application.

[0046] On the one hand, if Figure 1 and Figure 3 As shown, the present application provides an electrical room, including a housing 100, a fastening assembly 200 and a power board 300, the housing 100 has a mounting groove 110, the power board 300 is inserted into the mounting groove 110 through a notch 130 of the mounting groove 110, the fastening assembly 200 includes a snap-fit ​​member 210, the snap-fit ​​member 210 is located at the notch 130 and connected to the housing 100;

[0047] The latch 210 is configured to be loosely matched with the power board 300;

[0048] And / or the mounting groove 110 is configured to be clearance-matched with the power board 300 , so that the power board 300 can move or bend relative to at least one of the latch 210 and the mounting groove 110 .

[0049] It is understandable that the housing 100 in the present application can be the end cover housing 100 of the water heater facing the electrical room, or other housing 100 structures in the electrical room of the water heater, and the present application does not limit this. The housing 100 has a mounting groove 110, which can be vertically arranged relative to the housing 100 or arranged along the surface of the housing 100. The notch 130 of the mounting groove 110 is arranged at one end of the mounting groove 110 along its extension direction, so that the substrate 310 of the power board 300 can be inserted into the mounting groove 110 through the notch 130 along the extension direction of the mounting groove 110, or pulled out of the mounting groove 110 through the notch 130.

[0050] A fastening assembly 200 is provided on one side of the shell 100 close to the slot 130, and the fastening assembly 200 includes a snap member 210. Since the snap member 210 is close to the slot 130, the snap member 210 can be used to form a clearance fit with the edge of one side of the substrate 310 of the power board 300 facing the slot 130, so as to stop the power board 300 after the power board 300 is installed in the mounting groove 110, prevent the power board 300 from detaching from the mounting groove 110 from the slot 130, and avoid stress formed by continuous abutment with the power board 300.

[0051] Furthermore, the mounting groove 110 and the power board 300 are clearance-matched, and the mounting groove 110 can also be used to provide a movable interval for the power board 300, so that the power board 300 can move appropriately or slightly deform in the mounting groove 110.

[0052] Therefore, the shell 100 of the electrical room provided in the embodiment of the present application has a mounting groove 110 in its structure. By arranging a fastening assembly 200 on one side of the slot 130 of the mounting groove 110, the snap-fitting part 210 of the fastening assembly 200 and at least one of the mounting groove 110 forms a clearance fit with the power board 300.

[0053] In this way, if the water heater is impacted during assembly or transportation, and the substrate 310 of the power board 300 is bent and deformed, it can abut against either the snap member 210 or the mounting groove 110 to limit further bending of the power board 300, thereby buffering the force impact on the power board 300 and preventing the power board 300 from detaching from the mounting groove 110 or even breaking due to excessive bending; in a normal state, the snap member 210 and one side of the mounting groove 110 maintain a gap with the power board 300, and do not rigidly contact all surfaces of the substrate 310, thereby preventing the snap member 210 from continuously abutting against the power board 300 to form stress, ultimately extending the service life of the power board 300 and ensuring the installation stability of the power board 300.

[0054] Figure 4 A partial structural schematic diagram of the housing structure of the electrical room provided in an embodiment of the present application; Figure 5 for Figure 4 A schematic structural diagram of the middle latch 210.

[0055] Furthermore, one side of the installation slot 110 has an escape opening 140 communicating with the slot 130 , and a portion of the power board 300 is exposed from the installation slot 110 through the escape opening 140 ;

[0056] The latch 210 partially extends to the escape opening 140 , and has a first matching gap D1 between the latch 210 and a side surface of the power board 300 facing the escape opening 140 .

[0057] It should be noted that Figures 1 to 5The X, Y, and Z directions shown in the figure are perpendicular to each other in three-dimensional space. Figure 1 and Figure 2 The mounting groove 110 is arranged in the middle Z direction and extends in the Z direction. On the side of the mounting groove 110 relative to the Y direction, there is a avoidance opening 140 corresponding to the surface of one side of the substrate 310 of the power board 300. The power board 300 is provided with a plurality of components 320 on the side surface. Through the avoidance opening 140, each component 320 can be exposed from the mounting groove 110. The avoidance opening 140 is adjacent to and connected with the notch 130 arranged along the Z direction, so that when the power board 300 is plugged in or out, interference between the mounting groove 110 and each component 320 can be avoided, thereby affecting the smooth plugging and unplugging of the power board 300.

[0058] Part of the latch 210 is located on the side of the installation groove 110 facing the avoidance opening 140, and extends along the avoidance opening 140 to form a first matching gap D1 with the avoidance opening 140. It should be noted that the gap is smaller than the maximum bending amplitude of the power board 300 in the installation groove 110. In this way, before the power board 300 bends and deforms to the maximum amplitude, the latch 210 can abut against the power board 300 from the side of the avoidance opening 140 to prevent the power board 300 from further deformation, thereby preventing the power board 300 from detaching from the installation groove 110 from the avoidance opening 140, or even breaking due to excessive deformation.

[0059] In some embodiments, Figure 1 and Figure 4 As shown, the housing 100 is provided with a connecting column 120 at the notch 130 , and the fastening assembly 200 further includes a connecting piece 220 , through which the buckle body 211 is detachably connected to the connecting column 120 .

[0060] It can be understood that by providing the connecting piece 220, the buckle body 211 and the connecting column 120 on the shell 100 can be detachably connected, so that the setting of the buckle 210 can be more flexible. When the power board 300 is inserted into the installation slot 110, the buckle 210 can be removed to prevent the buckle 210 from interfering with the installation of the power board 300.

[0061] When the power board 300 is inserted into the mounting post 111 , the latch 210 can be connected to the mounting post 111 via the connector 220 to provide a stable stop for the power board 300 .

[0062] In a specific implementation, the connecting member 220 can be a threaded member such as a screw or a bolt, a threaded hole is provided in the mounting column 111, and a through hole is provided on the buckle body 211. In this way, the buckle 210 can be pressed against one end of the mounting column 111, and the through hole on the buckle 210 is aligned with the threaded hole in the mounting column 111, and then the threaded member is passed through the through hole and threadedly connected with the threaded hole to achieve the fixing of the buckle 210.

[0063] In order to improve the accuracy of positioning the through hole and the threaded hole and improve the connection efficiency of the connecting piece 220, an arc-shaped baffle 214 is provided on the side of the buckle body 211 facing the mounting column 111, and the inner side surface of the arc-shaped baffle 214 is adapted to the outer peripheral surface of the mounting column 111, so that when the buckle 210 is installed, the arc-shaped baffle 214 can be pressed against the mounting column 111 to make the through hole and the threaded hole coaxially aligned.

[0064] Further, in some embodiments, Figure 1 , Figure 3 and Figure 4 As shown, the fastening assembly 200 further includes a limiting member 230 , which is connected to the housing 100 and is engaged with the buckle body 211 to limit the axial rotation of the buckle body 211 relative to the connecting column 120 .

[0065] Since the buckle body 211 is arranged at one end of the connecting column 120, the connecting column 120 is a cylindrical structure and lacks an effective limiting structure for the buckle body 211. Therefore, when the buckle body 211 is installed on the connecting column 120 through a threaded member or other connecting member 220, the buckle body 211 cannot be effectively restricted from rotating around the axis of the connecting column 120. When the buckle body 211 rotates on the connecting column 120, it will drive the abutment part 213 to rotate synchronously and abut against the side of the power board 300 facing the avoidance opening 140, which may form stress on the power board 300.

[0066] The housing 100 is provided with a limiting member 230 engaged with the buckle body 211 , so that the buckle body 211 can be prevented from driving the abutting portion 213 to rotate, so that the buckle 210 can be installed more stably.

[0067] In other embodiments, if the connecting column 120 is a prismatic structure, the separate setting of the limit member 230 can be omitted, and the inner side surface of the arc-shaped baffle 214 can be set to match the outer peripheral surface of the prism, and the locking fit between the two prevents the buckle body 211 from driving the abutment portion 213 to rotate. The present application does not impose any restrictions on this.

[0068] Specifically, Figures 3 to 5 As shown, the limiting member 230 is a supporting rib arranged on one side of the connecting column 120;

[0069] A side of the buckle body 211 facing the supporting rib has a slot 2141 adapted to the supporting rib, and one end of the supporting rib facing the slot 2141 is engaged with the slot 2141 .

[0070] It can be understood that setting the limit member 230 as a support rib on one side of the connecting column 120 can not only achieve stable limit clamping connection between the limit member 230 and the buckle body 211, but also utilize the support rib to improve the structural strength of the connecting member 220, thereby ensuring that the housing structure of the electrical room is more stable and reliable.

[0071] The supporting rib has a simple structure, and a slot 2141 adapted to the supporting rib is provided on the arc-shaped baffle plate 214 of the buckle body 211, so that the overall structure can be simplified and the snap connection can be reliable.

[0072] In other embodiments, if the connecting column 120 itself is strong enough, the support ribs can be omitted, and a block can be set at one end of the connecting column 120 facing the latch 210, and a slot 2141 adapted to the block is set on the arc baffle 214. The present application does not impose any restrictions on this.

[0073] In some other embodiments, auxiliary ribs perpendicular to the support ribs may be added on at least one side of the support ribs to further improve the structural strength of the support ribs.

[0074] In some embodiments, Figure 1 and Figures 3 to 5 As shown, the buckle 210 includes a buckle body 211, a stopper 212 and an abutment portion 213. The buckle body 211 is connected to the housing 100, the stopper 212 is connected to one side of the buckle body 211, and a second matching gap D2 is formed between the stopper 212 and an edge of one side of the power board 300 facing the notch 130;

[0075] The abutting portion 213 is connected to the stopping portion 212 . The abutting portion 213 is bent relative to the stopping portion 212 and extends to the escape opening 140 . The first matching gap D1 is located between the abutting portion 213 and a surface of the power board 300 facing the escape opening 140 .

[0076] In this way, the buckle body 211 can be connected to the housing 100 by providing the stopper 212 and the contact part 213 on the buckle body 211. The buckle body 211 is located on the side of the power board 300 away from the escape opening 140 along the Y direction. Figure 3 The Y direction is located on one side of the buckle body 211, so that the stopping portion 212 can be located on the side of the buckle body 211 close to the slot 130 along the Z direction, and further the stopping portion 212 and one end of the power board 300 facing the slot 130 form a second matching gap D2, and the stopping portion 212 is used to prevent the power board 300 from detaching from the installation groove 110 from the slot 130, and to avoid the stopping portion 212 from abutting against the power board 300 to form stress.

[0077] The contact portion 213 is connected to the stop portion 212 and is bent relative to the stop portion 212 to form a contact portion 213 with the side of the power board 300 facing the avoidance opening 140 along the Z direction. Figure 3 The gap D1 in the middle can make the contact portion 213 and the power board 300 tightly contact each other when the power board 300 is bent and deformed toward the escape opening 140.

[0078] In this way, the locking member 210 is used to simultaneously limit the movement of the power board 300 toward the slot 130 and the bending toward the escape opening 140 , so that the structure is simple and compact, and easy to install.

[0079] In addition, if Figure 3 As shown, the extending direction of the abutting portion 213 is perpendicular to the extending direction of the stopping portion 212 .

[0080] It is understandable that Figure 3 The axial direction of the connecting column 120 is arranged in the Z direction so that it is parallel to the installation direction of the power board 300 to prevent the installation column 111 from interfering with the plugging and unplugging of the power board 300, and the stopper 212 is arranged along the radial direction of the connecting column 120 (i.e. Figure 3 If the stopper 212 extends in the Y direction, the stopper 212 can be used to stop and cooperate with the end edge of the power board 300. Therefore, the contact portion 213 extends perpendicularly relative to the stopper 212 to the avoidance opening 140, so that the contact portion 213 extends parallel to the power board 300 to form a first matching gap D1.

[0081] In this way, when the power board 300 is bent and deformed and contacts the abutment portion 213, its specific contact form can be regarded as a surface contact acting on the entire abutment portion 213 and part of the plane of the substrate 310, rather than a line contact acting only on the end of the abutment portion 213 and a certain point on the plane of the substrate 310. In this way, the contact force area between the abutment portion 213 and the power board 300 can be larger, the force can be more dispersed, and damage to the power board 300 can be avoided.

[0082] Furthermore, in some embodiments, Figure 1 and Figure 2 As shown, the housing 100 is provided with two installation posts 111 spaced apart and a plug-in connector 112 located between the two installation posts 111. The opposite side of the two installation posts 111 has a first slot 1111, and the first slot 1111 extends along the axial direction of the installation posts 111.

[0083] The plug connector 112 is located at one end of the two first slots 1111 . The plug connector 112 has a second slot 1121 facing the other end of the first slots 1111 . The second slot 1121 and the two first slots 1111 form a mounting slot 110 .

[0084] By along Figure 1 and Figure 2Two mounting posts 111 are arranged in the middle Z direction, and a first slot 1111 is arranged between the mounting posts 111 in opposite directions along the X direction, so that the first slot 1111 and the second slot 1121 of the connector 112 can cooperate to form a mounting slot 110. The overall structure is simple, and it is easy to improve the openness of the mounting slot 110, which is convenient for heat dissipation of the power board 300 and subsequent wiring.

[0085] The first slot 1111 and the second slot 1121 have a third matching gap with the power board 300. Specifically, by increasing the size margin on the size of the substrate 310 of the power board 300, the increased size is used as the inner size of the first slot 1111 and the second slot 1121, so that the installation slot 110 and the power board 300 are gap-matched, so that the power board 300 can move appropriately or deform slightly in the installation slot 110, but the power board 300 will not fall out of the installation slot 110.

[0086] In one possible implementation, continue to refer to Figure 1 and Figure 2 As shown, one end of the first slot 1111 away from the second slot 1121 is open to form a notch 130;

[0087] One side of the interval between the two first slots 1111 forms the escape opening 140 .

[0088] It can be understood that directly opening the end of the first slot 1111 away from the second slot 1121 to form the slot 130 avoids adding additional component structures as the slot 130, so that the structure of the installation slot 110 can be simple and compact.

[0089] Similarly, the escape opening 140 is directly formed in the gap between the two first slots 1111 on the side facing away from the shell 100, avoiding the need to open an additional hole on the shell 100 to form the escape opening 140, and also making the structure of the installation slot 110 simpler, more compact and easier to process.

[0090] That is, the mounting groove 110 of the present embodiment is formed only by two mounting posts 111 on the housing 100 and a connector 112 between the two mounting posts 111, and when the mounting posts 111 and the connector 112 form the mounting groove 110, the notch 130 and the avoidance opening 140 are also formed accordingly, thereby avoiding secondary processing and making the housing structure of the electrical room simpler and more compact.

[0091] On the other hand, the present application also provides an embodiment of a water heater, comprising a water heater body and an electrical appliance chamber in any of the above embodiments, wherein the electrical appliance chamber is arranged on the water heater body.

[0092] Among them, the electrical room has been explained in the above embodiments and will not be repeated here.

[0093] In summary, the electrical room and water heater provided in the present application have an electrical room shell 100 that has a mounting groove 110 with an avoidance opening 140. By arranging a fastening assembly 200 on one side of the groove 130 of the mounting groove 110, a snap fit is formed between the fastener 210 of the fastening assembly 200 and at least one of the mounting groove 110 and the power board 300.

[0094] In this way, if the water heater is impacted during assembly or transportation, and the substrate 310 of the power board 300 is bent and deformed, it can abut against either the snap member 210 or the mounting groove 110 to limit further bending of the power board 300, thereby buffering the force impact on the power board 300 and preventing the power board 300 from detaching from the mounting groove 110 or even breaking due to excessive bending; in a normal state, the snap member 210 and one side of the mounting groove 110 maintain a gap with the power board 300, and do not rigidly contact all surfaces of the substrate 310, thereby preventing the snap member 210 from continuously abutting against the power board 300 to form stress, ultimately extending the service life of the power board 300 and ensuring the installation stability of the power board 300.

[0095] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrical room, characterized in that: It comprises a housing, a fastening assembly and a power board, wherein the housing has a mounting slot, the power board is inserted into the mounting slot through a slot of the mounting slot, and the fastening assembly comprises a snap-fit ​​member, the snap-fit ​​member is located at the slot and connected to the housing; The snap fastener is configured to be loosely matched with the power board; And / or the mounting groove is configured to be loosely matched with the power board.

2. The electrical room according to claim 1, characterized in that: One side of the installation slot has an escape opening connected to the slot, and a portion of the power board is exposed from the installation slot through the escape opening; The latch part extends to the escape opening and has a first matching gap with a side surface of the power board facing the escape opening.

3. The electrical room according to claim 2, characterized in that: The housing is provided with a connecting column at the notch, the fastening assembly further comprises a connecting piece and a limiting piece, and the buckle is coaxially and detachably connected to the connecting column through the connecting piece; The limiting member is connected to the housing, and the limiting member is engaged with the buckle member to limit the axial rotation of the buckle member relative to the connecting column.

4. The electrical room according to claim 3, characterized in that: The limiting member is a supporting rib arranged on one side of the connecting column; The side of the buckle component facing the supporting rib has a slot adapted to the supporting rib, and one end of the supporting rib facing the slot is engaged with the slot.

5. The electrical room according to any one of claims 2 to 4, characterized in that: The buckle comprises a buckle body, a stopper and an abutment part, the buckle body is connected to the housing, the stopper is connected to one side of the buckle body, and the stopper is located at one side edge of the power board facing the notch; The abutting portion is connected to the stopping portion, and the abutting portion extends perpendicularly to the avoidance opening relative to the stopping portion. The first matching gap is located between the abutting portion and a side surface of the power board facing the avoidance opening.

6. The electrical room according to claim 5, characterized in that: A second matching gap is formed between the stopping portion and a side edge of the power board facing the notch.

7. The electrical room according to any one of claims 2 to 4, characterized in that: The housing is provided with two installation columns distributed at intervals and a plug-in component located between the two installation columns, and a first slot is provided on one side opposite to the two installation columns, and the first slot extends along the axial direction of the installation column; The plug-in connector is located at one end of the two first slots, and the plug-in connector has a second slot facing the other end of the first slot, and the second slot and the two first slots form the installation slot.

8. The electrical room according to claim 7, characterized in that: A third matching gap is formed between the first slot and the second slot and the power board.

9. The electrical room according to claim 7, characterized in that: One end of the first slot facing away from the second slot is open to form the notch; One side of the interval between the two first slots forms the escape opening.

10. A water heater, characterized in that: It comprises a water heater body and the electrical appliance chamber according to any one of claims 1 to 9, wherein the electrical appliance chamber is arranged on the water heater body.

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