Motor protector compatible with guide rail installation and screw installation

Abstract

A motor protector compatible with guide rail installation and screw installation disclosed by the present invention comprises a base and an upper cover, a mutual inductor, a wiring terminal, a PCB, a display and keys are arranged in the base, and the upper cover detachably covers the top of the base. The base is characterized in that the bottom of at least one of the left side wall and the right side wall of the base sinks towards the interior of the base to form an avoiding groove, and a screw mounting hole is formed in the bottom of the avoiding groove; a guide rail base protruding downwards is arranged on the bottom wall of the base, a detachable retainer is arranged on the guide rail base, a sliding groove penetrating through the guide rail base in the front-back direction is formed in the guide rail base, a first clamping part is further arranged on the guide rail base, a sliding block corresponding to the sliding groove is arranged on the retainer, a second clamping part is arranged on the retainer, and after the sliding block slides into the sliding groove, the first clamping part and the second clamping part are clamped in the sliding groove. And the first clamping part is clamped with the second clamping part. The scheme can be effectively compatible with guide rail and screw mounting modes, and is simple in overall structural form, convenient to use and high in practicability.

Description

Technical Field

[0001] The invention relates to the field of motor protectors, in particular to a motor protector that is compatible with guide rail installation and screw installation. Background Art

[0002] With the continuous development of the trend of centralized standardization of low-voltage electrical appliances, the installation method of low-voltage electrical appliances has gradually evolved from the previous screw installation method to the standard rail installation method. The advantage of the rail installation method is that electrical appliances with different dimensions or functions but also with rail installation functions can be installed on the same rail. The advantage of the screw installation method is that the installation position can be arranged arbitrarily by screw fastening according to actual needs. Compared with the rail installation method, it has low cost and the installation position is not constrained by the rail position like the rail installation.

[0003] However, in the past, motor protector products either had a single rail installation method or a single screw installation method, and some designs with both rail and screw installation required the installation of additional installation accessories, resulting in the product's occupied space exceeding the product's external dimensions and the overall structure being complex. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a motor protector that is compatible with rail mounting and screw mounting.

[0005] The technical solution of the present invention is as follows: a motor protector compatible with rail mounting and screw mounting, comprising a base and an upper cover, wherein a mutual inductor, a wiring terminal, a PCB board, a display and a button are arranged in the base, and the upper cover is detachably arranged on the top of the base, characterized in that:

[0006] The bottom of at least one of the left and right walls of the base is recessed toward the inside of the base to form an escape groove, and a screw mounting hole is provided at the bottom of the escape groove;

[0007] The bottom wall of the base is provided with a guide rail seat protruding downward, and a detachable stopper is provided on the guide rail seat, wherein the guide rail seat is provided with a sliding groove penetrating the guide rail seat along the front-to-back direction, and a first clamping portion is also provided on the guide rail seat, and a sliding block corresponding to the sliding groove is provided on the stopper, and a second clamping portion is provided on the stopper, and after the sliding block slides into the sliding groove, the first clamping portion is engaged with the second clamping portion.

[0008] Furthermore, the middle portion of the bottom wall of the avoidance groove is recessed downward to form a screw column, and the screw mounting hole is provided on the screw column.

[0009] Furthermore, the screw mounting hole is a countersunk hole, and the screw mounting hole penetrates the screw column outward.

[0010] Further, the guide rail seat is provided at the front edge of the bottom wall of the base, the guide rail seat is provided with two slide grooves arranged at intervals from left to right, the guide rail is further provided with a limiting groove penetrating the guide rail seat in the front-to-back direction, the limiting groove is located between the two slide grooves, and the first clamping portion is provided on the side wall of the limiting groove;

[0011] The stopper is provided with two sliders spaced apart from each other, one on the left and one on the right, and the stopper is also provided with a limit block, the limit block is located between the two sliders, and the side wall of the limit block is provided with the second clamping portion;

[0012] When the stopper slides into the guide rail seat, the two slide blocks slide into the corresponding two slide grooves respectively, the limit block slides into the limit groove, and the first clamping portion is clamped with the second clamping portion.

[0013] Further, one of the first clamping portion and the second clamping portion is a clamping slot, and the other is a clamping block.

[0014] Furthermore, the slide groove is a T-shaped groove.

[0015] Furthermore, the base is provided with a plurality of sleeves, and the mutual inductor is bonded and fixed to the sleeves.

[0016] Furthermore, a transformer cover plate is detachably provided on the rear side of the base, and a plurality of through holes corresponding to the sleeves are provided on the transformer cover plate.

[0017] Furthermore, a socket is provided on the rear side of the base, a snap-in is provided on the bottom wall of the base, an insert block is provided on the upper edge of the transformer cover, an elastic pressing tongue is provided on the bottom of the transformer cover, a hook is provided on the pressing tongue, the insert block is inserted into the socket, and the hook is inserted into the snap-in.

[0018] Furthermore, a plurality of connection terminals are provided on the base.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This solution can realize rail installation and screw installation without adding additional installation accessories and within the space that does not exceed the product's overall dimensions, and is compatible with the voltage and current protection of the motor. The overall structure of this product is simple, easy to use, and highly practical.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0023] Figure 1 It is a schematic diagram of the overall front side of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall rear side of the present invention;

[0025] Figure 3 is a bottom schematic diagram of the present invention, wherein the stopper and the guide rail seat are in a mating state;

[0026] Figure 4 is a bottom schematic diagram of the present invention, wherein the stopper and the guide rail seat are in a separated state;

[0027] Figure 5 It is a schematic diagram of the mutual inductor cover plate and the base being separated from each other according to the present invention;

[0028] Figure 6 It is a schematic diagram of the cover plate portion of the mutual inductor of the present invention;

[0029] Figure 7 is an internal schematic diagram of the present invention;

[0030] Reference numerals:

[0031] 1. Base; 2. Upper cover; 3. Transformer; 4. Terminal block; 5. PCB board; 6. Display; 7. Button; 8. Avoidance groove; 9. Screw mounting hole; 10. Screw column; 11. Guide rail seat; 12. Stopper; 13. Slide groove; 14. First clamping part; 15. Slider; 16. Second clamping part; 17. Limiting groove; 18. Limiting block; 19. Sleeve; 20. Transformer cover; 21. Socket; 22. Bayonet; 23. Insert block; 24. Press tongue; 25. Hook. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0036] like Figure 1-Figure 7 The motor protector shown is compatible with rail mounting and screw mounting, including a base 1 and an upper cover 2, wherein a mutual inductor 3, a terminal block 4, a PCB board 5, a display 6 and a button 7 are arranged in the base 1, and the upper cover 2 is detachably arranged on the top of the base 1.

[0037] like Figure 1-Figure 3 As shown, the bottom of at least one of the left and right walls of the base 1 is recessed toward the inside of the base 1 to form an avoidance groove 8, and a screw mounting hole 9 is provided at the bottom of the avoidance groove 8, thereby realizing the screw mounting function.

[0038] Moreover, after the avoidance groove 8 is provided, space is left for opening the screw installation hole 9 and the subsequent disassembly and installation of the screws, so that there is no need to provide an outer edge structure at the bottom of the left wall or the right wall of the base 1 to open the screw installation hole 9, and it will not exceed the outer size space of the motor protector product.

[0039] In further settings, such as Figure 2As shown, the middle part of the bottom wall of the avoidance groove 8 is recessed downward to form a screw column 10, and a screw mounting hole 9 is provided on the screw column 10. The screw mounting hole 9 is a countersunk hole, and the screw mounting hole 9 penetrates the screw column 10 outward, thereby facilitating the disassembly and assembly of the screw.

[0040] like Figure 1 , Figure 3 and Figure 4 As shown, the bottom wall of the base 1 is provided with a guide rail seat 11 protruding downward, and a detachable stopper 12 is provided on the guide rail seat 11, wherein the guide rail seat 11 is provided with a slide groove 13 penetrating the guide rail seat 11 along the front-to-back direction, and the guide rail seat 11 is also provided with a first clamping portion 14, and a slider 15 corresponding to the slide groove 13 is provided on the stopper 12, and a second clamping portion 16 is provided on the stopper 12. After the slider 15 slides into the slide groove 13, the first clamping portion 14 is engaged with the second clamping portion 16, thereby realizing the guide rail installation function, and this part of the structure is mainly arranged at the bottom of the base 1, and will not exceed the outer size space of the motor protector product outward.

[0041] In further settings, such as Figure 3 and Figure 4 As shown, a guide rail seat 11 is provided on the front edge of the bottom wall of the base 1, and two slide grooves 13 arranged at intervals from left to right are provided on the guide rail seat 11, and a limiting groove 17 penetrating the guide rail seat 11 along the front-to-back direction is also provided on the guide rail, and the limiting groove 17 is located between the two slide grooves 13, and a first clamping portion 14 is provided on the side wall of the limiting groove 17; two sliders 15 arranged at intervals from left to right are provided on the stop member 12, and a limiting block 18 is also provided on the stop member 12, and the limiting block 18 is located between the two sliders 15, and a second clamping portion 16 is provided on the side wall of the limiting block 18.

[0042] When the stopper 12 slides into the guide rail seat 11 , the two slide blocks 15 slide into the corresponding two slide grooves 13 respectively, the limiting block 18 slides into the limiting groove 17 , and the first clamping portion 14 is engaged with the second clamping portion 16 .

[0043] The slide groove 13 is a T-shaped groove, one of the first clamping portion 14 and the second clamping portion 16 is a clamping groove, and the other is a clamping block. In order to facilitate the clamping of the clamping groove and the clamping block, the clamping groove is an arc groove, and the clamping block is an arc block.

[0044] like Figure 5 and Figure 6 As shown, the base 1 is provided with a plurality of sleeves 19 , on which the mutual inductor 3 is bonded and fixed. The installation method of the mutual inductor 3 is simple, and the mutual inductor 3 and the base 1 can be integrated without the need for additional fixing parts.

[0045] Furthermore, a transformer cover plate 20 is detachably provided on the rear side of the base 1, and a plurality of through holes corresponding to the sleeve 19 are provided on the transformer cover plate 20. A plug hole 21 is provided on the rear side of the base 1, a bayonet 22 is provided on the bottom wall of the base 1, an insert block 23 is provided on the upper edge of the transformer cover plate 20, an elastic pressing tongue 24 is provided on the bottom of the transformer cover plate 20, a hook 25 is provided on the pressing tongue 24, the insert block 23 is inserted into the plug hole 21, and the hook 25 is inserted into the bayonet 22, thereby, by pressing the elastic pressing tongue 24 to separate the hook 25 from the bayonet 22, the transformer cover plate 20 can be removed, and the transformer 3 can be conveniently disassembled and assembled.

[0046] like Figure 1 , Figure 2 and Figure 7 As shown, the base 1 is provided with a plurality of wiring terminals 4. Therefore, in practical applications, different numbers of wiring holes, such as 8 holes and 12 holes, can be realized by changing the wiring terminals 4 in the same combination of the cover and the base 1 according to actual needs. Then, through the combination design of the PCB, the mutual inductor 3 and the program, the product functions can be any combination of phase sequence, phase failure, overvoltage, undervoltage, voltage imbalance, inverse time current protection, time-limited current protection, current imbalance, current phase loss, blockage, stall, short circuit, auxiliary contact output, communication and the like under the same outer dimensions.

[0047] In summary, this solution can realize rail installation and screw installation without adding additional installation accessories and within the space of the product's overall dimensions, and is compatible with the voltage and current protection of the motor. The overall structure of this product is simple, easy to use, and highly practical.

[0048] Although a portion of the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations to these embodiments are within the scope of protection of the claims of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A motor protector compatible with rail mounting and screw mounting, comprising a base and an upper cover, wherein a mutual inductor, a terminal block, a PCB board, a display and buttons are arranged in the base, and the upper cover is detachably arranged on the top of the base, characterized in that: The bottom of at least one of the left and right walls of the base is recessed toward the inside of the base to form an escape groove, and a screw mounting hole is provided at the bottom of the escape groove; The bottom wall of the base is provided with a guide rail seat protruding downward, and a detachable stopper is provided on the guide rail seat, wherein the guide rail seat is provided with a sliding groove penetrating the guide rail seat along the front-to-back direction, and a first clamping portion is also provided on the guide rail seat, and a sliding block corresponding to the sliding groove is provided on the stopper, and a second clamping portion is provided on the stopper, and after the sliding block slides into the sliding groove, the first clamping portion is engaged with the second clamping portion.

2. The rail-mount and screw-mount compatible motor protector according to claim 1, characterized in that, The middle part of the bottom wall of the avoidance groove is recessed downward to form a screw column, and the screw mounting hole is provided on the screw column.

3. The rail-mount and screw-mount compatible motor protector according to claim 2, characterized in that, The screw mounting hole is a countersunk hole, and the screw mounting hole penetrates the screw column outwardly.

4. The rail-mount and screw-mount compatible motor protector according to claim 1, characterized in that, The guide rail seat is provided at the front edge of the bottom wall of the base, and the guide rail seat is provided with two slide grooves arranged at intervals from left to right, and the guide rail is also provided with a limiting groove penetrating the guide rail seat in the front-to-back direction, and the limiting groove is located between the two slide grooves, and the first clamping portion is provided on the side wall of the limiting groove; The stopper is provided with two sliders spaced apart from each other, one on the left and one on the right, and the stopper is also provided with a limit block, the limit block is located between the two sliders, and the side wall of the limit block is provided with the second clamping portion; When the stopper slides into the guide rail seat, the two slide blocks slide into the corresponding two slide grooves respectively, the limit block slides into the limit groove, and the first clamping portion is clamped with the second clamping portion.

5. The rail-mount and screw-mount compatible motor protector according to claim 1, characterized in that, One of the first clamping portion and the second clamping portion is a clamping slot, and the other is a clamping block.

6. The rail-mount and screw-mount compatible motor protector according to claim 1, characterized in that, The slide groove is a T-shaped groove.

7. The rail-mount and screw-mount compatible motor protector according to claim 1, characterized in that, The base is provided with a plurality of sleeves, and the mutual inductor is bonded and fixed on the sleeves.

8. The rail-mount and screw-mount compatible motor protector according to claim 7, characterized in that: A transformer cover plate is detachably provided on the rear side of the base, and a plurality of through holes corresponding to the sleeves are provided on the transformer cover plate.

9. The rail-mount and screw-mount compatible motor protector according to claim 8, characterized in that: A socket is provided on the rear side of the base, a bayonet is provided on the bottom wall of the base, an insert block is provided on the upper edge of the transformer cover, an elastic pressing tongue is provided on the bottom of the transformer cover, a hook is provided on the pressing tongue, the insert block is inserted into the socket, and the hook is inserted into the bayonet.

10. The rail-mount and screw-mount compatible motor protector according to claim 1, characterized in that, The base is provided with a plurality of connection terminals.

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