CN219761587U - Variable frequency control box, variable frequency compressor and refrigerator - Google Patents

Abstract

The utility model provides a variable frequency control box, a variable frequency compressor and a refrigerator. The variable frequency control box comprises a first box body, a second box body and a limiting piece, wherein the first box body and the second box body enclose a containing cavity. One side of the first box body, which is away from the accommodating cavity, is provided with an inserting port, and the inserting port is communicated with the accommodating cavity. And one side of the second box body facing the accommodating cavity is provided with a mounting groove for mounting the compressor terminal. The limiting piece is arranged on the second box body and used for limiting the compressor terminal in the mounting groove. According to the scheme, the mounting groove is formed in the second box body, the compressor terminal can be mounted in the mounting groove, and the limiting piece is used for limiting the compressor terminal in the mounting groove, so that the compressor terminal is mounted on the variable frequency control box, the compressor terminal can be detached from the mounting groove and replaced by releasing the limiting of the limiting piece, and the universality of the compressor terminal on the variable frequency control box is improved.

Description

Variable frequency control box, variable frequency compressor and refrigerator

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a variable frequency control box, a variable frequency compressor and a refrigerator.

Background

The compressors currently used in refrigeration equipment are generally variable frequency compressors. The variable frequency compressor generally comprises a variable frequency control box and a compressor body, wherein the variable frequency control box is provided with a wiring terminal connected with a UVW three-phase wiring terminal of the compressor.

In the prior art, terminals connected with UVW three-phase binding posts on the variable frequency control box are generally simplified into special-shaped binding lugs which are arranged on the variable frequency control box, so that the universality of compressor terminals on the variable frequency control box is not facilitated.

Disclosure of Invention

The utility model provides a variable frequency control box, a variable frequency compressor and a refrigerator, and aims to solve the technical problem that a compressor terminal on the variable frequency control box in the prior art is poor in universality.

In order to solve the above problems, the present utility model provides a variable frequency control box, including:

a first case;

the second box body and the first box body enclose a containing cavity, an inserting port is arranged on one side, away from the containing cavity, of the second box body, the inserting port is communicated with the containing cavity, a mounting groove is formed on one side, facing the containing cavity, of the second box body, and the mounting groove is used for mounting a compressor terminal;

and the limiting piece is arranged on the second box body and used for limiting the compressor terminal to be positioned in the mounting groove.

The second box body is provided with a first extending part and a second extending part towards one side of the accommodating cavity, the first extending part and the second extending part are arranged at intervals along a first direction, and the mounting groove is formed between the first extending part and the second extending part.

The limiting piece is covered on one side, away from the second box body, of the first extending portion and the second extending portion.

One of the second box body and the limiting piece is provided with a clamping protrusion, and the other one of the second box body and the limiting piece is provided with a clamping groove matched with the clamping protrusion.

Wherein, one side of the first extension part, which is away from the mounting groove, and one side of the second extension part, which is away from the mounting groove, are both provided with the clamping protrusions;

the second box body is provided with a first disassembly groove at the corresponding position of the clamping protrusion, and the first disassembly groove is used for disassembling the limiting piece at one side of the second box body, which is away from the accommodating cavity.

Wherein a difference between a dimension of the mounting groove in the first direction and a maximum dimension of the compressor terminal in the first direction is 0-1mm.

The second box body faces one side of the accommodating cavity and is further provided with a locating piece, the locating piece is located at the first end of the mounting groove and used for locating the mounting position of the compressor terminal in the mounting groove.

The second box body is further provided with a second disassembly groove, the second disassembly groove is located at the second end of the mounting groove and used for disassembling the compressor terminal at one side, deviating from the accommodating cavity, of the second box body.

The second box body is provided with a third extending part and a fourth extending part towards one side of the accommodating cavity, the third extending part and the fourth extending part are positioned on two opposite sides of the second dismounting groove, and the third extending part and the fourth extending part are used for limiting the displacement of the compressor terminal in the first direction.

The first limiting surface and the second limiting surface are used for limiting the displacement of the compressor terminal in a second direction, and the second direction is perpendicular to the first direction.

The present utility model also provides a variable frequency compressor comprising:

any of the variable frequency control boxes described above, having a compressor terminal installed;

and the compressor body is provided with a binding post matched with the compressor terminal.

The utility model also provides a refrigerator comprising the variable frequency compressor.

The beneficial effects of the embodiment of the utility model are as follows: the utility model provides a variable frequency control box which comprises a first box body, a second box body and a limiting piece. The first box body and the second box body enclose a containing cavity. One side of the second box body, which is away from the accommodating cavity, is provided with an inserting port. The plug-in port is communicated with the accommodating cavity. One side of the second box body facing the accommodating cavity is provided with an installing groove. The mounting groove is used for mounting the compressor terminal. The limiting piece is arranged on the second box body. The limiting piece is used for limiting the compressor terminal in the mounting groove. According to the variable frequency control box provided by the utility model, the mounting groove is formed in the second box body, and the limiting piece is arranged, so that the compressor terminal can be embedded into the mounting groove when the variable frequency control box is used, then the limiting piece is arranged, and the compressor terminal is limited in the mounting groove, so that the installation of the compressor terminal on the variable frequency control box is realized, when the compressor terminal fails, the limitation of the limiting piece on the compressor terminal can be released, so that the compressor terminal can be taken out from the mounting groove, then a new compressor terminal is replaced, the use cost of the variable frequency control box is reduced, and the universality of the compressor terminal on the variable frequency control box is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic structural diagram of a limiting member in a variable frequency control box provided by the utility model after being matched with a second box body;

FIG. 2 is a schematic structural diagram of an installation groove in a variable frequency control box provided by the utility model;

FIG. 3 is a schematic diagram of the structure of the mounting slot of the variable frequency control box provided by the utility model matched with the compressor terminal;

fig. 4 is a schematic structural diagram of a side of a second box body, facing away from a receiving cavity, in a variable frequency control box provided by the utility model;

fig. 5 is a schematic structural diagram of a first view angle of a limiting member in a variable frequency control box according to the present utility model;

fig. 6 is a schematic structural diagram of a second view angle of a limiting member in the variable frequency control box provided by the utility model;

fig. 7 is a schematic structural diagram of a variable frequency compressor according to the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 4 and fig. 7, fig. 1 is a schematic structural diagram of a limiting member in a frequency conversion control box provided by the present utility model after being matched with a second box body, fig. 2 is a schematic structural diagram of a mounting groove in the frequency conversion control box provided by the present utility model, fig. 3 is a schematic structural diagram of a mounting groove in the frequency conversion control box provided by the present utility model matched with a compressor terminal, fig. 4 is a schematic structural diagram of a side, away from a receiving cavity, of the second box body in the frequency conversion control box provided by the present utility model, and fig. 7 is a schematic structural diagram of a frequency conversion compressor provided by the present utility model.

The utility model provides a variable frequency control box 100, wherein the variable frequency control box 100 can be used for a compressor of a refrigerator. The variable frequency control box 100 includes a first box body 10, a second box body 20, and a limiting member 30. Wherein the first casing 10 and the second casing 20 enclose a receiving chamber 40. The accommodating cavity 40 is used for accommodating a control motherboard. The side of the second casing 20 facing away from the receiving cavity 40 is provided with an insertion opening 28. The socket 28 communicates with the receiving chamber 40. The second case 20 is provided with a mounting groove 25 at a side facing the receiving chamber 40. The mounting groove 25 is used for mounting the compressor terminal 300. The limiting member 30 is disposed on the second case 20. The stopper 30 serves to limit the compressor terminal 300 to the mounting groove 25.

The present utility model is described by taking the compressor terminal 300 as a terminal connected to the UVW three-phase terminal 201a of the compressor, but is not limited thereto. As shown in fig. 3, the terminal connected to the UVW three-phase terminal 201a of the compressor generally includes a main body 301, an end 303, and a shoulder 302, the end 303 being located at one end of the main body 301, the junction of the end 303 and the main body 301 forming the shoulder 302. A connection hole (not shown) of the compressor terminal 300, which is fitted to the plug port 28, is formed in the main body 301 of the compressor terminal 300.

The first case 10 and the second case 20 of the variable frequency control case 100 form the outer case of the variable frequency control case 100. One of the first box body 10 and the second box body 20 is a bottom box of the variable frequency control box 100, the other one of the first box body 10 and the second box body 20 is a box cover of the variable frequency control box 100, the first box body 10 and the second box body 20 are respectively provided with a containing groove, one sides of the first box body 10 and the second box body 20, which are provided with the containing grooves, are oppositely arranged, and the first box body 10 and the second box body 20 are spliced together to form a containing cavity 40. In order to facilitate maintenance and replacement of the compressor terminal 300, the control main board and other components in the accommodating cavity 40, a detachable split connection manner may be adopted between the first box body 10 and the second box body 20, for example, but not limited to, a snap or screw connection is adopted between the first box body 10 and the second box body 20.

The present utility model is described by taking the first case 10 as a bottom case of the variable frequency control case 100, and taking the second case 20 as a case cover of the variable frequency control case 100. The control main board of the variable frequency control box 100 can be installed on the first box body 10, and the compressor terminal 300 is installed on the second box body 20, so that when the variable frequency control box 100 is connected with the compressor, one side, deviating from the accommodating cavity 40, of the second box body 20 can be arranged towards the binding post 201a of the compressor.

The side of the second casing 20 facing away from the receiving cavity 40 is provided with an insertion opening 28. The socket 28 communicates with the housing chamber 40 of the inverter control box 100, so that the terminal 201a of the compressor can be connected with the compressor terminal 300 in the housing chamber 40 through the socket 28. In some embodiments, to facilitate insertion of the terminal 201a of the compressor into the socket 28, the edge of the socket 28 may be provided with a guiding surface 281, the guiding surface 281 being used to guide the terminal 201a of the compressor into the socket 28 when the terminal 201a of the compressor is inserted into the socket 28. Wherein the guiding surface 281 may be formed by chamfering the edge of the socket 28.

The second case 20 is provided at a side facing the receiving chamber 40 with a mounting groove 25, and the mounting groove 25 is used for mounting the compressor terminal 300. It should be understood that the position of the mounting groove 25 on the side of the second case 20 facing the accommodation chamber 40 corresponds to the position of the insertion port 28 on the side of the second case 20 facing away from the accommodation chamber 40, so that the compressor post 201a can be inserted into the connection hole of the compressor terminal 300 after being inserted from the insertion port 28. The present utility model is not limited to the specific structure of the mounting groove 25, and as shown in fig. 2 and 3, in some embodiments, the side of the second case 20 facing the accommodating cavity 40 is provided with a first extension 21 and a second extension 22. The first extension 21 and the second extension 22 extend from a side surface of the second case 20 toward the accommodating chamber 40 in a direction away from the surface. By arranging the first extension portion 21 and the second extension portion 22 at intervals in the first direction X, the mounting groove 25 is formed between the first extension portion 21 and the second extension portion 22. The mounting groove 25 is a through groove extending in a second direction Y, which is perpendicular to the first direction X. Placing the compressor terminal 300 in the mounting groove 25 places the compressor terminal 300 between the first extension 21 and the second extension 22. When the compressor terminal 300 is placed in the mounting groove 25, only the main body 301 of the compressor terminal 300 may be placed in the mounting groove 25, and thus, the extension length of the mounting groove 25 in the second direction Y may be adapted to the length of the main body 301 of the compressor terminal 300 in the second direction Y.

When the compressor terminal 300 is placed between the first extension 21 and the second extension 22, the first extension 21 and the second extension 22 can simultaneously function to limit displacement of the compressor terminal 300 in the first direction X. In some embodiments, the difference between the dimension of the mounting groove 25 in the first direction X and the maximum dimension of the compressor terminal 300 in the first direction X may be between 0 and 1mm, for example, the difference between the dimension of the mounting groove 25 in the first direction X and the maximum dimension of the compressor terminal 300 in the first direction X may be 0.2mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, and 1mm, but is not limited thereto. The dimension of the mounting groove 25 in the first direction X is a distance between a side surface of the first extension portion 21 facing the mounting groove 25 and a side surface of the second extension portion 22 facing the mounting groove 25 in the first direction X, and the maximum dimension of the compressor terminal 300 in the first direction X is a dimension of the main body portion 301 of the compressor terminal 300 in the first direction X. Since the compressor terminal 300 is mounted with the compressor terminal 300 interposed between the first extension 21 and the second extension 22, it is understood that the size of the mounting groove 25 in the first direction X is equal to or greater than the size of the main body portion 301 of the compressor terminal 300 in the first direction X. When the dimension of the mounting groove 25 in the first direction X is greater than the dimension of the main body 301 of the compressor terminal 300 in the first direction X, it is indicated that there is a certain displacement space of the compressor terminal 300 in the first direction X after the compressor terminal 300 is placed in the mounting groove 25, so that when the terminal 201a on the compressor is inclined or bent to a certain extent, the terminal 201a on the compressor enters the connection hole of the compressor terminal 300 through the insertion opening 28, the terminal 201a will shift the compressor terminal 300 in the mounting groove 25 to adapt the position of the mounting hole on the compressor terminal 300 to the terminal 201a as the terminal 201a is inserted into the connection hole. Since the edge of the socket 28 is provided with the guide surface 281, the terminal 201a can be guided into the socket 28 to be engaged with the connection hole of the compressor terminal 300 even if there is a certain deviation in the insertion.

Since the mounting groove 25 is a through groove, in order to ensure that the compressor terminal 300 can correspond to the plug interface 28 after being placed in the mounting groove 25, as shown in fig. 2 and 3, in some embodiments, a positioning member 27 is further disposed on a side of the second box 20 facing the accommodating cavity 40. The positioning member 27 is located at the first end 251 of the mounting groove 25 for positioning the mounting position of the compressor and the terminals in the mounting groove 25. In this way, when the compressor mounting terminal is placed in the mounting groove 25, the end of the main body 301 of the compressor terminal 300 facing away from the end 303 may be first abutted against the positioning member 27, so as to ensure that the compressor terminal 300 can be correctly placed in the mounting groove 25. The utility model is not limited to the specific structure of the positioning member 27, and for example, in some embodiments, the positioning member 27 may be a rectangular stopper.

It should be noted that, the first end 251 of the mounting groove 25 is provided with the positioning member 27, and the positioning member 27 can limit the displacement of the compressor terminal 300 at the first end 251 of the mounting groove 25, so that, to ensure the stability of the installation of the compressor terminal 300 in the mounting groove 25, the second end 252 of the mounting groove 25 should also have a limiting structure, and the second end 252 of the mounting groove 25 and the first end 251 of the mounting groove 25 are opposite ends, so that the limiting structure of the second end 252 of the mounting groove 25 and the positioning member 27 together complete the limitation of the compressor terminal 300 in the second direction Y. The compressor terminal 300 also has a certain displacement space in the second direction Y by setting the distance of the stopper 27 and the limit structure of the second end 252 of the mounting groove 25 in the second direction Y to accommodate the terminal 201a of the compressor. The specific structure of the limiting structure of the second end 252 is not limited in the present utility model, for example, the limiting structure of the second end 252 may be a rectangular stop located at the second end 252 of the mounting slot 25.

As shown in fig. 2 and 4, in some embodiments, a second dismounting groove 262 is also provided on the second cartridge 20. The second dismounting groove 262 is located at the second end 252 of the mounting groove 25. The second dismounting groove 262 is used for dismounting the compressor terminal 300 at the side of the second casing 20 facing away from the receiving groove. It should be appreciated that the second dismounting groove 262 extends through the side wall of the second cartridge 20. After the compressor terminal 300 is placed in the mounting groove 25, the end 303 of the compressor terminal 300 is brought into correspondence with the mounting groove 25, so that when the compressor terminal 300 needs to be removed from the mounting groove 25, the compressor terminal 300 can be pushed out of the mounting groove 25 through the second dismounting groove 262 from the side of the second case 20 facing away from the receiving groove, whereby the compressor terminal 300 can be dismounted from the mounting groove 25.

As shown in fig. 1 and 2, in some embodiments, a side of the second case 20 facing the receiving chamber 40 may be further provided with a third extension 23 and a fourth extension 24, the third extension 23 and the fourth extension 24 being located at opposite sides of the second dismounting groove 262 for restricting displacement of the compressor terminal 300 in the first direction X, it being understood that the third extension 23 and the fourth extension 24 are spaced apart in the first direction X such that the body portion 301 of the compressor terminal 300 is placed between the first extension 21 and the second extension 22 and the end portion 303 of the compressor terminal 300 is placed between the third extension 23 and the fourth extension 24 when the compressor terminal 300 is placed in the mounting groove 25. Meanwhile, by providing the third extension portion 23 and the fourth extension portion 24 on opposite sides of the second dismounting groove 262, the end portion 303 of the compressor terminal 300 is placed between the third extension portion 23 and the fourth extension portion 24 when the compressor terminal 300 is mounted, so that the end portion 303 of the compressor terminal 300 can be ensured to cover the second dismounting groove 262, and the dismounting of the compressor terminal 300 is facilitated. It should be noted that, the arrangement interval of the third extension portion 23 and the fourth extension portion 24 along the first direction X should be able to satisfy the displacement range of the main body portion 301 of the compressor terminal 300 between the first extension portion 21 and the second extension portion 22, so as to ensure that the compressor terminal 300 can adapt to the terminal post 201a on the compressor.

As shown in fig. 1 to 3, in some embodiments, the end of the third extension portion 23 facing the mounting groove 25 is provided with a first limit surface 231, and the end of the fourth extension portion 24 facing the mounting groove 25 is provided with a second limit surface 241, and the first limit surface 231 and the second limit surface 241 serve to limit displacement of the compressor terminal 300 in the second direction Y. When the compressor terminal 300 is placed in the mounting groove 25, the body portion 301 of the compressor terminal 300 is located between the first extension portion 21 and the second extension portion 22, the end portion 303 of the compressor terminal 300 is located between the third extension portion 23 and the fourth extension portion 24, and the shoulder portion 302 of the compressor terminal 300 is located at the end of the third extension portion 23 and the fourth extension portion 24 toward the mounting groove 25, the displacement of the compressor terminal 300 in the second direction Y can be restricted by engaging the first and second restricting surfaces 231 and 241 with the shoulder portion 302 of the compressor terminal 300. As shown in fig. 3, the first and second limiting surfaces 231 and 241 may be inclined surfaces that mate with the shoulder 302 of the compressor terminal 300, but are not limited thereto.

When the compressor terminal 300 is placed in the mounting groove 25, the first extension portion 21 and the second extension portion 22 may limit the displacement of the compressor terminal 300 in the first direction X, the third extension portion 23 and the fourth extension portion 24 may limit the displacement of the compressor terminal 300 in the second direction Y, and then the limiter 30 limits the compressor terminal 300 in the mounting groove 25, that is, the mounting of the compressor terminal 300 on the variable frequency control box 100 is completed.

The limiting member 30 is disposed on the second box 20, and the specific location and the specific manner of disposing the limiting member 30 on the second box 20 are not limited in the present utility model. It should be noted that, the limiting member 30 is used for limiting the compressor terminal 300 in the mounting groove 25, and when the compressor terminal 300 needs to be replaced, the limiting member 30 needs to be released from the limiting member, and the manner in which the limiting member 30 is disposed on the second case 20 may be a moving manner, a rotating manner, or a detachable manner, but is not limited thereto. The present utility model will be described by taking the case where the stopper 30 is detachably provided to the second case 20 as an example.

Referring to fig. 5 and fig. 6 together, fig. 5 is a schematic structural diagram of a first view angle of a limiting member in a frequency conversion control box provided by the present utility model, and fig. 6 is a schematic structural diagram of a second view angle of a limiting member in a frequency conversion control box provided by the present utility model. In some embodiments, the limiting member 30 is disposed on a side of the first extending portion 21 and the second extending portion 22 facing away from the second box 20 by covering to limit the compressor terminal 300 in the mounting groove 25. The positioning member 30 may be detachably disposed on the second case 20 by a snap connection or a screw connection, but is not limited thereto. The present utility model will be described by taking the connection manner between the limiting member 30 and the second case 20 as a snap connection. One of the second case 20 and the stopper 30 may be provided with a catching protrusion 29, and the other may be provided with a catching groove 311 engaged with the catching protrusion 29. In the present utility model, the second case 20 is provided with the clamping protrusion 29, the limiting member 30 is provided with the clamping groove 311 matched with the second case 20, as shown in fig. 3 and 6, in some embodiments, the clamping protrusion 29 on the second case 20 may be provided on one side of the first extending portion 21 facing away from the mounting groove 25 and one side of the second extending portion 22 facing away from the mounting groove 25, so that the limiting member 30 may be a cover plate structure, two opposite sides of the cover plate are provided with the extending edges 31, when the limiting member 30 is covered on one side of the first extending portion 21 and the second extending portion 22 facing away from the second case 20, the extending edge 31 on one side of the limiting member 30 is located on one side of the first extending portion 21 facing away from the mounting groove 25, and the extending edge 31 on the other side of the limiting member 30 is located on one side of the second extending portion 22 facing away from the mounting groove 25, and by providing the clamping groove 311 on one side opposite to the two extending edges 31, thereby completing the arrangement of the limiting member 30 on the second case 20 by pressing the opposite sides 31. When the inverter control box 100 is plugged with the terminal 201a of the compressor, the compressor terminal 300 transmits the received thrust to the limiter 30, and the limiter 30 may be provided with a reinforcing rib to ensure the strength of the limiter 30.

As shown in fig. 3, 4 and 6, in some embodiments, the second cartridge 20 is provided with a first dismounting groove 261 at a corresponding position of the catching protrusion 29. The first dismounting groove 261 is used for dismounting the limiting piece 30 at one side of the second box body 20 away from the accommodating cavity 40. When the limiting piece 30 is disposed on the second box 20 through the engagement slot 311 and the snap fit, the engagement slot 311 and the snap fit are required to be disengaged when the limiting piece 30 is detached. It should be appreciated that the first disassembling groove 261 is distributed on one side of the first extending portion 21 away from the mounting groove 25 and one side of the second extending portion 22 away from the mounting groove 25, when the limiting member 30 is disassembled, the extending edge 31 is shifted by a tool from one side of the second box body 20 away from the accommodating groove through the first disassembling groove 261 in a direction away from the buckle, so that the clamping groove 311 can be disengaged from the buckle, and the operation is simple. The utility model is not limited to a detachable tool, but can be a straight screwdriver or the like, for example, by the first detachable groove 261 and by pulling the extension 31.

As shown in fig. 7, in some embodiments of the present utility model, a variable frequency compressor 200 is also provided. The inverter compressor 200 may be used in a refrigeration appliance. The inverter compressor 200 includes the inverter control box 100 and the compressor body 201 in the above-described embodiments. Wherein the variable frequency control box 100 has the compressor terminal 300 mounted thereon. The compressor body 201 is provided with a terminal post 201a that mates with the compressor terminal 300. For example, the terminal 201a on the compressor body 201 may be a UVW three-phase terminal 201a, but is not limited thereto.

In some embodiments of the present utility model, a refrigerator is also provided. The refrigerator includes the inverter compressor 200 in the above-described embodiment. It should be understood that the refrigerator further includes a cabinet, a condenser, an expansion valve, and an evaporator. Wherein, condenser, expansion valve, evaporator and inverter compressor 200 are all disposed in the case. The condenser, expansion valve, evaporator and inverter compressor 200 constitute a refrigerator refrigeration system.

The utility model provides a variable frequency control box, a variable frequency compressor and a refrigerator. The variable frequency control box 100 includes a first box body 10, a second box body 20, and a limiting member 30. The first casing 10 and the second casing 20 enclose a receiving chamber 40. The side of the second casing 20 facing away from the receiving cavity 40 is provided with an insertion opening 28. The socket 28 communicates with the receiving chamber 40. The second case 20 is provided with a mounting groove 25 at a side facing the receiving chamber 40. The mounting groove 25 is used for mounting the compressor terminal 300. The limiting member 30 is disposed on the second case 20. The stopper 30 serves to limit the compressor terminal 300 to the mounting groove 25. According to the variable frequency control box 100 provided by the utility model, the mounting groove 25 is formed in the second box body 20, the limiting piece 30 is arranged, the compressor terminal 300 can be embedded into the mounting groove 25 when the variable frequency control box is used, then the limiting piece 30 is arranged, and the compressor terminal 300 is limited in the mounting groove 25, so that the installation of the compressor terminal 300 on the variable frequency control box 100 is realized, when the compressor terminal 300 fails, the limiting piece 30 is released to limit the compressor terminal 300, so that the compressor terminal 300 can be taken out from the mounting groove 25, and then a new compressor terminal 300 is replaced, so that the use cost of the variable frequency control box 100 is reduced, and the universality of the compressor terminal 300 on the variable frequency control box 100 is improved.

The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.

Claims (12)

1. A variable frequency control box, comprising:

a first case;

the second box body and the first box body enclose a containing cavity, an inserting port is arranged on one side, away from the containing cavity, of the second box body, the inserting port is communicated with the containing cavity, a mounting groove is formed on one side, facing the containing cavity, of the second box body, and the mounting groove is used for mounting a compressor terminal;

and the limiting piece is arranged on the second box body and used for limiting the compressor terminal to be positioned in the mounting groove.

2. The variable frequency control box of claim 1, wherein a side of the second box body facing the accommodating cavity is provided with a first extension portion and a second extension portion, the first extension portion and the second extension portion are arranged at intervals along a first direction, and the mounting groove is formed between the first extension portion and the second extension portion.

3. The variable frequency control box of claim 2, wherein the limiting member covers a side of the first extension portion and the second extension portion facing away from the second box body.

4. A variable frequency control box according to claim 3, wherein one of the second box body and the limiting member is provided with a clamping protrusion, and the other one is provided with a clamping groove matched with the clamping protrusion.

5. The variable frequency control box of claim 4, wherein the clamping protrusions are disposed on a side of the first extension portion facing away from the mounting groove and a side of the second extension portion facing away from the mounting groove;

the second box body is provided with a first disassembly groove at the corresponding position of the clamping protrusion, and the first disassembly groove is used for disassembling the limiting piece at one side of the second box body, which is away from the accommodating cavity.

6. The variable frequency control box of claim 2, wherein a difference between a dimension of the mounting groove in the first direction and a maximum dimension of the compressor terminal in the first direction is 0-1mm.

7. The variable frequency control box of claim 1, wherein a positioning member is further disposed on a side of the second box body facing the accommodating cavity, and the positioning member is located at the first end of the mounting groove and is used for positioning the mounting position of the compressor terminal in the mounting groove.

8. The variable frequency control box of claim 1, wherein the second box body is further provided with a second disassembly slot located at a second end of the mounting slot for disassembling the compressor terminal at a side of the second box body facing away from the receiving cavity.

9. The variable frequency control box of claim 8, wherein a third extension portion and a fourth extension portion are provided on a side of the second box body facing the receiving chamber, the third extension portion and the fourth extension portion being located on opposite sides of the second dismounting groove, the third extension portion and the fourth extension portion being configured to restrict displacement of the compressor terminal in a first direction.

10. The variable frequency control box of claim 9, wherein an end of the third extension portion facing the mounting groove is provided with a first limit surface, a side of the fourth extension portion facing the mounting groove is provided with a second limit surface, and the first limit surface and the second limit surface are used for limiting displacement of the compressor terminal in a second direction, the second direction being perpendicular to the first direction.

11. A variable frequency compressor, comprising:

the variable frequency control box of any one of claims 1-10, fitted with compressor terminals;

and the compressor body is provided with a binding post matched with the compressor terminal.

12. A refrigerator comprising the inverter compressor of claim 11.