Integrated structure of current starter and motor protector

Abstract

The utility model discloses an integrated structure of a current starter and a motor protector, and belongs to the technical field of refrigeration compressor motor starting and protecting devices. Comprising a current starter and a motor protector, and further comprises an integrated mounting frame, a current starter insertion cavity is formed in the lower portion of the integrated mounting frame, a motor protector insertion cavity is formed in the upper portion of the integrated mounting frame, the current starter and the current starter insertion cavity are fixed in an insertion mode, and the motor protector and the motor protector insertion cavity are fixed in an insertion mode. The insertion directions of the current starter and the motor protector and the three-wire columns of the refrigeration compressor are the same and are matched with the distances among the three-wire columns of the refrigeration compressor, and the integrated mounting frame, the current starter and the motor protector are simultaneously inserted and matched with the three-wire columns of the refrigeration compressor at a time. The utility model has the advantages that the requirement of being mounted on a three-line column of a refrigeration compressor is met, and economy is embodied; assembly process links are reduced, and assembly efficiency is improved; and the reliability and the safety of the three-line column assembled on the refrigeration compressor are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of starting and protecting devices for refrigeration compressor motors, and particularly relates to an integrated structure of a current starter and a motor protector. Background Art

[0002] The aforementioned current starter mainly refers to, but is not limited to, a weight-type current starter. The weight-type current starter is mainly applied to compressors that require a large starting current, that is, it can provide the necessary current support during startup to help the compressor start smoothly and reach the normal operating state. Further, the weight-type current starter is particularly suitable for compressors that require a high current during startup, such as refrigeration equipment like commercial freezers and refrigerated cabinets.

[0003] The working principle of the weight-type current starter is based on the electromagnetic principle, and the start and stop of the compressor are controlled by the magnetic field generated by the current. Specifically, when the current is switched on, since the refrigeration compressor motor cannot rotate immediately, a large starting current will be generated. This current passes through the coil of the weight-type current starter to generate sufficient magnetic force to attract the weight to rise, thereby closing the moving and static contacts, connecting the starting winding circuit, and causing the motor to start rotating. As the motor speed increases, the starting current gradually decreases. When the speed reaches a certain level, the weight drops due to its own gravity or electromagnetic changes, disconnecting the connection between the moving contact and the static contact, thereby disconnecting the aforementioned starting winding circuit, and the refrigeration compressor motor enters the normal operating state.

[0004] In the publicly available Chinese patent literature, technical information related to the aforementioned weight-type current starter can be found, such as "A weight starter with improved sealing performance" provided by CN202906801U, "A fully enclosed weight starter for a refrigeration compressor using R600a refrigerant" recommended by CN2733039Y, and "A weight-type current starter with improved structure" introduced by CN206481237U, etc.

[0005] The aforementioned motor protector is short for the overheat (overload) protector of the refrigeration compressor motor. After the refrigeration compressor enters the normal operating state, it usually needs to be protected by the overheat protector. The purpose is: when the refrigeration compressor is overloaded during operation, it disconnects the power supply to prevent the refrigeration compressor from overheating and being damaged. In the publicly available Chinese patent literature, technical information on motor protectors can be found, such as the structural system of motor starters in CN2821846Y (a compressor overheat protector), CN208673997U (a thermal protector), CN215187850U (an integrated multi-terminal motor starting protector for a refrigeration compressor), and CN219203076U (a refrigeration compressor motor overheat protector), etc.

[0006] As is known in the industry, the aforementioned current starter and motor protector are assembled on the refrigeration compressor by plugging them into the three-wire column on the refrigeration compressor. Specifically, the protector pin hole of the motor protector is first plugged into the protector in the three-wire column on the refrigeration compressor, and then the S socket and M socket of the structural system of the current starter are respectively plugged into the S pin and M pin in the three-wire column on the refrigeration compressor. Of course, it is also possible to install the current starter first and then the protector.

[0007] From the above description and based on the actual production conditions of various manufacturers to date, it can be known that since the above-mentioned current starter and motor protector are two independent electrical components, it is impossible to mate both of them with the three-wire post on the electrical junction box of the refrigeration compressor at one time, that is, in no particular order. For example, first mate the S jack and M jack of the aforementioned CN206481237U structure with the S pin and M pin of the aforementioned three-wire post, and then mate the protector pin of CN219203076U with the protector pin of the three-wire post. Conversely, if the installation order is changed, the same example applies, that is, in any case, two installations must be performed to complete the assembly with the three-wire post of the refrigeration compressor.

[0008] Some people may think that if the heavy hammer current starter and the motor protector are designed as an integrated structure, the installation requirements of the one-time and three-wire columns of the refrigeration compressor can be met regardless of order. This idea can simplify the design and reduce costs in theory, but in actual operation, it will face the following unavoidable problems: First, due to the different working principles and protection mechanisms of the two devices, combining them together requires solving technical compatibility issues to ensure that the two do not interfere with each other in function; second, merging the two functions will significantly increase the complexity (degree) of the design, thereby increasing the manufacturing cost. For example, the applicant's trial proved that based on the inevitable comprehensive cost (including mold development, so as to obtain the re-development of a completely different production line), the price will be higher. However, the price of many refrigeration compressors has dropped to a very low price, so this is obviously unacceptable to refrigeration compressor manufacturers. Moreover, the size of the current starter and the motor protector designed together is large, and it is difficult or even impossible to install them on the smaller refrigeration compressors currently commonly used in the market; furthermore, in terms of the model composition of the two devices, in order to meet the mutual matching of more models, the flexible matching of the two integrated devices has no obvious advantage. The modular installation structure is more flexible for customer procurement and manufacturer process management. For example, after the finished products of the protector monomer and the starter monomer are completed, they can be flexibly combined and matched, thereby effectively reducing inventory and shortening the supply cycle, that is, making the production process of the starter and protector more adaptable to market demand. From the perspective of safety and reliability, separating the two can better ensure the independence and stability of their respective functions and avoid safety problems.

[0009] Due to being restricted by factors not limited to the above, the industry has defaulted that it is an objective fact that the current starter and the motor protector are constituted as two independent and unconnected components and have to be accepted and recognized. However, at the same time, it is very confused about the two successive installations of the starter and the protector, because the two installations require an increase in the installation process (process steps), and if it is manual installation, additional installation workers equipped on the production line are required, which is not conducive to saving precious labor resources. In particular, during the plug-in assembly process of the protector monomer (single-hole structure) and the starter monomer (double-hole structure), it is easy to have an inclination in the angle and direction when holding the product by hand, resulting in damage to the plug-in connection part, and even connection failure. Even worse, there is a risk of contact arcing causing a fire accident during the user's use process.

[0010] Based on the above factors, it is of positive significance to explore a structure that can not only reasonably integrate the current starter and the motor protector to change the two installations into one installation, but also avoid increasing the volume, and reflect economy and ensure the reliability advantage of three-hole installation on the same plane. The technical solution to be introduced below is generated under this background. Summary of the Utility Model

[0011] The task of the present utility model is to provide an integrated structure of a current starter and a motor protector, which helps to avoid increasing the volume and significantly increasing the cost, and can meet the requirements of being installed on the three-wire post of a refrigeration compressor and reflect economy. It is beneficial to change the two successive installations into a one-time installation regardless of the order, thereby reducing the assembly process links, improving the assembly efficiency and saving precious labor resources. It is beneficial to ensure the reliability and safety of being installed on the three-wire post of a refrigeration compressor, and eliminate the fire accidents caused by factors such as arcing during the user's daily use process.

[0012] The task of the present utility model is completed in the following way. An integrated structure of a current starter and a motor protector includes a current starter and a motor protector, and is characterized in that it further includes an integrated mounting bracket. The lower part of the integrated mounting bracket forms a current starter insertion cavity, and the upper part forms a motor protector insertion cavity. The current starter is inserted and fixed with the current starter insertion cavity, and the motor protector is inserted and fixed with the motor protector insertion cavity. The directions of the current starter and the motor protector inserted into the three-wire post of the refrigeration compressor are the same and adapted to the distance between the three-wire post of the refrigeration compressor. The integrated mounting bracket, together with the current starter and the motor protector, is inserted into the three-wire post of the refrigeration compressor at one time.

[0013] In a specific embodiment of the present utility model, a front side plate of the current starter insertion cavity is formed at the front side of the current starter insertion cavity, a rear side plate of the current starter insertion cavity is formed at the rear side, a right side plate of the current starter insertion cavity is formed at the right side, a bottom plate of the current starter insertion cavity is formed at the bottom, and the left side of the current starter insertion cavity is configured as an opening of the current starter insertion cavity. The front and rear side plates of the current starter insertion cavity correspond to each other. A left baffle of the motor protector is formed at the left side of the motor protector insertion cavity, a front baffle of the motor protector is formed at the front side, a rear baffle of the motor protector is formed at the rear side. The area where the bottom plate of the motor protector insertion cavity corresponds to the top of the current starter insertion cavity is simultaneously configured as the top plate of the current starter insertion cavity. The right side of the motor protector insertion cavity is configured as an opening of the motor protector insertion cavity. The front and rear baffles of the motor protector correspond to each other. After the current starter is inserted into the current starter insertion cavity from the opening of the current starter insertion cavity at the right end of the current starter, the front side plate of the current starter insertion cavity is closely attached to the front side wall at the right end of the current starter, the rear side plate of the current starter insertion cavity is closely attached to the rear side wall at the right end of the current starter, and at the same time, the bottom plate of the motor protector insertion cavity corresponding to the top area of the current starter insertion cavity is closely attached to the top at the right end of the current starter, thereby inserting and fixing the current starter to the current starter insertion cavity. After the motor protector is inserted into the motor protector insertion cavity from the opening of the motor protector insertion cavity, the left baffle of the motor protector limits the left end of the motor protector, and at the same time, the front and rear baffles of the motor protector respectively limit the front side and the rear side of the motor protector. In the use state, the right side plate of the current starter insertion cavity and the opening of the motor protector insertion cavity face the three-wire post of the refrigeration compressor.

[0014] In another specific embodiment of the present utility model, on one side of the bottom plate of the current starter insertion cavity of the current starter insertion cavity, facing the current starter insertion cavity and located in the middle of the length direction of the bottom plate of the current starter insertion cavity, there is formed a rivet end flange relief groove. The current starter includes a current starter housing and a current starter cover plate. The left end and the right end of the current starter cover plate are respectively fixed to the current starter housing by a current starter cover plate blind rivet. Among them, the rivet end flange at the lower end of the current starter cover plate blind rivet located at the right end protrudes out of the bottom surface of the current starter housing and corresponds to the rivet end flange relief groove; at the center position of the upper part of the right end of the current starter cover plate and at the position corresponding to the upper end of the current starter cover plate blind rivet at the right end, there is formed a cover plate clamping flange protruding from the surface of the current starter cover plate. On the bottom plate of the motor protector insertion cavity and at the position corresponding to the cover plate clamping flange, there is opened a cover plate clamping flange fitting cavity penetrating the thickness direction of the bottom plate of the motor protector insertion cavity. The cover plate clamping flange is fitted with the cover plate clamping flange fitting cavity, and the cover plate clamping flange at the upper part of the right end of the current starter cover plate extends into the cover plate clamping flange concave cavity.

[0015] In yet another specific embodiment of the present utility model, the current starter includes an S pin and an M pin. The S pin and the M pin are arranged inside the current starter housing and located at the right end of the current starter housing. On the right end wall of the current starter housing and at the position corresponding to the S pin, there is opened a current starter S pin electrical connection relief hole, and at the position corresponding to the M pin, there is opened a current starter M pin electrical connection relief hole; the motor protector includes a motor protector pin. The motor protector pin is arranged on the side of the motor protector cover facing away from the shield, and the motor protector pin hole of the motor protector pin corresponds to the motor protector pin electrical connection relief hole opened on the right end wall of the motor protector cover. On the right side plate of the current starter insertion cavity of the current starter insertion cavity and at the position corresponding to the current starter S pin electrical connection relief hole, there is opened an S pin three-wire terminal introduction hole, and at the position corresponding to the current starter M pin electrical connection relief hole, there is opened an M pin three-wire terminal introduction hole; the directions of insertion of the S pin three-wire terminal introduction hole, the M pin three-wire terminal introduction hole, and the motor protector pin electrical connection relief hole into the three-wire post of the refrigeration compressor are the same as each other and are adapted to the spacing between the three-wire posts of the refrigeration compressor. When the S pin three-wire terminal introduction hole, the M pin three-wire terminal introduction hole, and the motor protector pin electrical connection relief hole are inserted into the three-wire post corresponding to the refrigeration compressor, the S pin, the M pin, and the motor protector pin are simultaneously inserted into the three-wire post of the refrigeration compressor at one time.

[0016] In still another specific embodiment of the present utility model, the S-pin three-wire terminal insertion holes, the M-pin three-wire terminal insertion holes, and the electrical connection relief holes for the motor protector pins form a triangular positional distribution relationship with each other.

[0017] In still another specific embodiment of the present utility model, on the left end of the front baffle of the motor protector and the rear baffle of the motor protector facing each other, and at corresponding positions, a motor protector cover guiding surface step is formed on each side. On the surface of the motor protector cover facing away from the protective cover and at the position corresponding to the motor protector cover guiding surface step, a motor protector cover sliding guiding surface is formed, and the motor protector cover sliding guiding surface is in sliding fit with the motor protector cover guiding surface step.

[0018] In yet another specific embodiment of the present utility model, on the upper side of the bottom plate of the motor protector insertion cavity of the motor protector insertion cavity and at the position corresponding to the right side surface of the left baffle of the motor protector, a protector hook is formed. On the side of the motor protector cover of the motor protector facing away from the protective cover and at the position corresponding to the hook, a electrical connection piece limiting block for limiting the electrical connection piece electrically connected to the motor protector pin is formed, and the right side surface of the limiting block of the electrical connection piece limiting block is hooked with the hook.

[0019] In yet another specific embodiment of the present utility model, a front baffle folded edge extends in the direction of the rear baffle of the motor protector at the upper part of the front baffle of the motor protector, and a rear baffle folded edge extends in the direction of the front baffle of the motor protector at the upper part of the rear baffle of the motor protector. The front baffle folded edge is in close contact with the edge part of the upper surface of the front side of the protective cover, and the rear baffle folded edge is in close contact with the edge part of the upper surface of the rear side of the protective cover.

[0020] In yet another more specific embodiment of the present utility model, a current starter insertion cavity front side plate clamping flange cavity penetrating the thickness direction of the current starter insertion cavity front side plate is provided on the front side plate of the current starter insertion cavity. On the front side surface of the right end of the current starter housing and at the position corresponding to the current starter insertion cavity front side plate clamping flange cavity, a current starter housing position transfer clamping flange is formed, and the current starter housing position transfer clamping flange is fitted with the current starter insertion cavity front side plate clamping flange cavity.

[0021] In yet another specific embodiment of the present utility model, on the bottom plate of the current starter insertion cavity and in the middle of the length direction of the bottom plate of the current starter insertion cavity, there is provided a current starter housing bottom clamping flange cavity penetrating through the thickness direction of the bottom plate of the current starter insertion cavity. At the bottom right end of the current starter housing and at a position corresponding to the current starter housing bottom clamping flange cavity, there is formed a current starter housing bottom clamping flange protruding from the bottom surface of the current starter housing, and this current starter housing bottom clamping flange is fitted into the current starter housing bottom clamping flange cavity.

[0022] One of the technical effects of the technical solution provided by the present utility model is that, since an integrated mounting bracket is used to assemble the current starter and the motor protector in an insertion manner, it helps to avoid increasing the volume and significantly increasing the cost, and can meet the requirements of being installed on the three-wire posts of the refrigeration compressor and reflect economy; second, since the integrated mounting bracket together with the current starter and the motor protector can be inserted into the three-wire posts at one time, it can not only reduce the assembly process steps, improve the assembly efficiency, but also save valuable labor resources; third, since the installation of the current starter and the motor protector in the prior art, which were installed separately in two steps successively, is changed to a one-time installation without sequence, it is beneficial to ensure the reliability and safety of the assembly on the three-wire posts of the refrigeration compressor, and can eliminate factors such as arcing caused by poor electrical contact during the daily use of users and even trigger fire accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the assembly structure diagram of the first embodiment of the present utility model;

[0024] Figure 2 is Figure 1 the schematic diagram after assembly;

[0025] Figure 3 is Figure 1 and Figure 2 the detailed structure diagram of the integrated mounting bracket shown;

[0026] Figure 4 is Figure 1 and Figure 2 the bottom view schematic diagram of the motor protector cover of the motor protector shown;

[0027] Figure 5 is the schematic diagram of the second embodiment to meet the mutual assembly of the current starter and the integrated mounting bracket;

[0028] Figure 6 is the schematic diagram of the third embodiment to meet the mutual assembly of the current starter and the integrated mounting bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to more clearly understand the technical essence and beneficial effects of the present utility model, the applicant will make a detailed description in the following in the form of embodiments. However, the descriptions of the embodiments are not limitations on the solutions of the present utility model. Any formal but non-substantive equivalent transformation made based on the concept of the present utility model should be regarded as falling within the scope of the technical solutions of the present utility model.

[0030] In the following descriptions, all directional or azimuthal concepts involving up, down, left, right, front, and back are based on Figure 1 the current position state, and thus cannot be understood as special limitations on the technical solutions provided by the present utility model. Embodiment 1

[0031] Please refer to Figures 1 to 4 , which shows a current starter 1 (a weight type current starter in this embodiment) and a motor protector 2. Since the specific internal structure and action mechanism of the current starter 1 belong to the prior art, for example, reference can be made to CN206481237U (weight type current starter with structural improvement), and since the specific internal structure and action mechanism of the motor protector also belong to the prior art, for example, reference can be made to CN219203076U (refrigeration compressor motor overheat protector), the applicant will only mention some relevant components below and will not elaborate comprehensively.

[0032] As the technical key point of the technical solution provided by the present utility model: in the integrated structure of the aforementioned current starter and motor protector, there is also an integrated mounting bracket 3. The lower part of the integrated mounting bracket 3 forms a current starter insertion cavity 31, and the upper part forms a motor protector insertion cavity 32. The aforementioned current starter 1 is inserted and fixed with the aforementioned current starter insertion cavity 31, and the aforementioned motor protector 2 is inserted and fixed with the aforementioned motor protector insertion cavity 32. The directions in which the current starter 1 and the motor protector 2 are plugged into the three-wire posts of the refrigeration compressor are the same and are adapted to the spacing between the three-wire posts of the refrigeration compressor. The integrated mounting bracket 3 together with the current starter 1 and the motor protector 2 are simultaneously plugged into the three-wire posts of the refrigeration compressor at one time.

[0033] In this embodiment, the aforementioned integrated mounting bracket 3 is made of plastic and molded by a mold. Since the volumes of the current starter 1 and the motor protector 2 are relatively small, especially the total volume of the parts where the current starter 1 and the motor protector 2 are inserted and fixed with the integrated mounting bracket 3 is even smaller, the price of the entire integrated mounting bracket 3 made of plastic is very low, thus objectively and comprehensively realizing the various technical effects summarized by the applicant in the technical effect column above.

[0034] Focus on Figures 1 to 3, a front side of the aforementioned current starter insertion cavity 31 is formed with a front side plate 311 of the current starter insertion cavity, a rear side is formed with a rear side plate 312 of the current starter insertion cavity, a right side of the current starter insertion cavity 31 is formed with a right side plate 313 of the current starter insertion cavity, a bottom of the current starter insertion cavity 31 is formed with a bottom plate 314 of the current starter insertion cavity, a left side of the current starter insertion cavity 31 is configured as an opening 315 of the current starter insertion cavity, and the front and rear side plates 311, 312 of the aforementioned current starter insertion cavity correspond to each other front and back; on a left side of the aforementioned motor protector insertion cavity 32, a half-gate-type left baffle 321 of the motor protector is formed, a front side is formed with a front baffle 322 of the motor protector, a rear side is formed with a rear baffle 323 of the motor protector, and a bottom plate 324 of the motor protector insertion cavity ( Figure 2 marked) and a region corresponding to the top of the aforementioned current starter insertion cavity 31 (i.e., the right half of the bottom plate 324 of the motor protector insertion cavity) are simultaneously configured as and also serve as the top plate of the current starter insertion cavity, thereby forming a common plate for both. A right side of the motor protector insertion cavity 32 is configured as an opening 325 of the motor protector insertion cavity, and the front and rear baffles 322, 323 of the aforementioned motor protector correspond to each other front and back; after the right end of the aforementioned current starter 1 is inserted into the aforementioned current starter insertion cavity 31 from the opening 315 of the current starter insertion cavity, the rear side surface of the front side plate 311 of the current starter insertion cavity, i.e., the surface facing the current starter insertion cavity 31, is closely attached to the front side wall of the right end of the current starter 1, the front side surface of the rear side plate 312 of the current starter insertion cavity, i.e., the surface facing the current starter insertion cavity 31, is closely attached to the rear side wall of the right end of the current starter 1, and at the same time, the bottom plate 324 of the motor protector insertion cavity corresponding to the top region of the current starter insertion cavity 31 is closely attached to the top of the right end of the current starter 1, thereby inserting and fixing the right end of the current starter 1 to the aforementioned current starter insertion cavity 31; after the aforementioned motor protector 2 is inserted into the aforementioned motor protector insertion cavity 32 from the opening 325 of the motor protector insertion cavity, the left baffle 321 of the motor protector limits the left end of the motor protector 2, and at the same time, the opposite sides of the front and rear baffles 322, 323 of the aforementioned motor protector respectively limit the front side surface and the rear side surface of the motor protector 2; in the use state, the right side plate 313 of the aforementioned current starter insertion cavity and the opening 325 of the aforementioned motor protector insertion cavity face the three-wire post of the aforementioned refrigeration compressor.

[0035] On a side of the bottom plate 314 of the current starter insertion cavity of the aforementioned current starter insertion cavity 31 facing the current starter insertion cavity 31 and located in the middle of the length direction of the bottom plate 314 of the current starter insertion cavity, a rivet end flange relief groove 3141 is formed ( Figure 3 shown), and the aforementioned current starter 1 includes a current starter housing 11 and a current starter cover 12 ( Figure 1As shown, the left and right ends of the current starter cover plate 12 are each fixed to the current starter housing 11 by a blind rivet 121 for the current starter cover plate or other fasteners equivalent to the blind rivet 121 for the current starter cover plate. Among them, the rivet end flange 1211 at the lower end of the blind rivet 121 for the current starter cover plate located at the right end protrudes from the bottom surface of the current starter housing 11 and corresponds to the rivet end flange relief groove 3141. It can be seen from this that the rivet end flange relief groove 3141 is used to compensate for the rivet end flange 4211; at the center position in the upper part of the right end of the current starter cover plate 12 and at the position corresponding to the upper end of the blind rivet 121 for the current starter cover plate at the right end, a cover plate clamping flange 122 protruding from the surface of the current starter cover plate 12 is formed. On the bottom plate 324 of the motor protector insertion cavity, a cover plate clamping flange fitting cavity 3241 penetrating the thickness direction of the bottom plate 324 of the motor protector insertion cavity is opened at the position corresponding to the cover plate clamping flange 122. The cover plate clamping flange 122 is fitted with the cover plate clamping flange fitting cavity 3241, so that the cover plate clamping flange 122 at the upper part of the right end of the current starter cover plate 12 extends into the cover plate clamping flange cavity 1221.

[0036] See key points Figure 1 and Figure 2 And continue to combine Figure 3 and Figure 4, the aforementioned current starter 1 includes an S pin 13a representing the starting winding and an M pin 13b representing the running winding. The S pin 13a and the M pin 13b are arranged inside the aforementioned current starter housing 11 and are located at the right end of the current starter housing 11. On the right end wall of the aforementioned current starter housing 11 and at a position corresponding to the aforementioned S pin 13a, there is provided a current starter S pin electrical connection relief hole 14a, and at a position corresponding to the aforementioned M pin 13b, there is provided a current starter M pin electrical connection relief hole 14b; the aforementioned motor protector 2 includes a motor protector pin 21, which is arranged on the side of the motor protector cover 22 facing away from the shield 23, and the motor protector pin hole of the motor protector pin 21 corresponds to the motor protector pin electrical connection relief hole 221 provided on the right end wall of the motor protector cover 22. On the right side plate 313 of the current starter insertion cavity 31 of the aforementioned current starter and at a position corresponding to the aforementioned current starter S pin electrical connection relief hole 14a, there is provided an S pin three-wire terminal introduction hole 3131, and at a position corresponding to the aforementioned current starter M pin electrical connection relief hole 14b, there is provided an M pin three-wire terminal introduction hole 3132; the directions of the aforementioned S pin three-wire terminal introduction hole 3131, M pin three-wire terminal introduction hole 3132, and the motor protector pin electrical connection relief hole 221 for plugging into the three-wire terminals of the aforementioned refrigeration compressor are the same as each other and are adapted to the spacing between the three-wire terminals of the refrigeration compressor. When the aforementioned S pin three-wire terminal introduction hole 3131, M pin three-wire terminal introduction hole 3132, and the motor protector pin electrical connection relief hole 221 are plugged into the three-wire terminals at positions corresponding to the three-wire terminals of the refrigeration compressor, the aforementioned S pin 13a, M pin 13b, and the motor protector pin 21 are simultaneously plugged into the three-wire terminals of the refrigeration compressor at one time.

[0037] The aforementioned S pin three-wire terminal introduction hole 3131, M pin three-wire terminal introduction hole 3132, and the motor protector pin electrical connection relief hole 221 form a triangular positional distribution relationship with each other. This is because the three-wire terminals of the aforementioned refrigeration compressor are also triangularly distributed, so they can be adapted to the three-wire terminals.

[0038] As Figures 1 to 3 shown, on the left end of the aforementioned motor protector front baffle 322 and the left end of the aforementioned motor protector rear baffle 323 facing each other and at corresponding positions, there is respectively formed a motor protector cover guiding surface step 33. The surface of the aforementioned motor protector cover 22 facing away from the aforementioned shield 23, that is, the downward-facing side, and at a position corresponding to the aforementioned motor protector cover guiding surface step 33, there is formed a motor protector cover sliding guiding surface 222, and the motor protector cover sliding guiding surface 222 is in sliding fit with the aforementioned motor protector cover guiding surface step 33.

[0039] On the upper side of the motor protector insertion cavity bottom plate 324 of the aforementioned motor protector insertion cavity 32 and at the position corresponding to the right side surface of the aforementioned motor protector left baffle 321, a protector hook 3242 is formed. On the side of the aforementioned motor protector cover 22 of the aforementioned motor protector 2 facing away from the aforementioned protective cover 23 and at the position corresponding to the hook 3242, a connecting piece limiting block 223 for limiting a protector pin electrical connecting piece 211 ( Figure 4 as shown) for electrically connecting with the protector pin electrically connected to the aforementioned motor protector pin 21 is formed. The right side surface 2231 of the limiting block of the electrical connecting piece limiting block 223 is hooked with the aforementioned hook 3242.

[0040] By Figure 1 and Figure 2 as shown, a front baffle folding edge 3221 is folded and extended from the upper part of the aforementioned motor protector front baffle 322 towards the direction of the aforementioned motor protector rear baffle 323. A rear baffle folding edge 3231 is folded and extended from the upper part of the aforementioned motor protector rear baffle 323 towards the direction of the motor protector front baffle 322. The front baffle folding edge 3221 is in close contact with the edge part of the upper surface of the front side (also called the "front end") of the aforementioned protective cover 23. The rear baffle folding edge 3231 is in close contact with the edge part of the upper surface of the rear side (also called the "rear end") of the protective cover 23. Embodiment 2

[0041] Please refer to Figure 5 , as another implementation manner relative to Embodiment 1, a current starter insertion cavity front side plate clamping flange cavity 3111 penetrating the thickness direction of the current starter insertion cavity front side plate 311 is opened on the current starter insertion cavity front side plate 311. On the front side surface of the right end of the aforementioned current starter housing 11 and at the position corresponding to the current starter insertion cavity front side plate clamping flange cavity 3111, a current starter housing position transfer clamping flange is formed. The current starter housing position transfer clamping flange is fitted with the current starter insertion cavity front side plate clamping flange cavity 3111.

[0042] It can be seen from this Embodiment 2 that, relative to Embodiment 1, the cover plate clamping flange fitting cavity 3241 of Embodiment 1 is transferred to the current starter insertion cavity front side plate 311, and correspondingly, the cover plate clamping flange 122 of Embodiment 1 is transferred to the front side surface of the right end of the current starter housing 11. This implementation manner can also insert and fix the right end of the current starter 1 into the current starter insertion cavity 31 of the integrated mounting bracket 3. The rest is the same as the description of Embodiment 1. Embodiment 3

[0043] On the bottom plate 314 of the aforementioned three-current starter insertion cavity and in the middle of the length direction of the bottom plate 314 of the current starter insertion cavity, there is provided a current starter housing bottom clamping flange cavity 3142 that penetrates the thickness direction of the bottom plate 314 of the current starter insertion cavity. At the bottom right end of the aforementioned current starter housing 11 and at a position corresponding to the current starter housing bottom clamping flange cavity 3142, there is formed a current starter housing bottom clamping flange that protrudes from the bottom surface of the current starter housing. The current starter housing bottom clamping flange is fitted with the current starter housing bottom clamping flange cavity 3142.

[0044] As described in the description of Embodiment 2, in this Embodiment 3, the cover plate clamping flange fitting cavity 3241 of Embodiment 1 is transferred to the bottom plate 314 of the current starter insertion cavity, and correspondingly, the cover plate clamping flange 122 of Embodiment 1 is transferred to the bottom right end of the current starter housing 11 of the current starter 1. The rest is the same as the description of Embodiment 1.

[0045] Of course, the present utility model is not limited by the above Embodiments 1 to 3, and any change in form rather than in substance should be regarded as falling within the scope of the technical connotation disclosed by the present utility model.

[0046] In summary, the technical solution provided by the present utility model makes up for the deficiencies in the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the technical effect column above.

Claims

1. An integrated structure of a current starter and a motor protector, comprising a current starter (1) and a motor protector (2), characterized in that: The invention also comprises an integrated mounting frame (3), the lower part of which is formed with a current starter insertion cavity (31), and the upper part of which is formed with a motor protector insertion cavity (32), the current starter (1) is inserted and fixed in the current starter insertion cavity (31), and the motor protector (2) is inserted and fixed in the motor protector insertion cavity (32), the current starter (1) and the motor protector (2) are inserted and fixed in the motor protector insertion cavity (32), the directions in which the current starter (1) and the motor protector (2) are plugged into the three-wire column of the refrigeration compressor are the same, and the spacing between the three-wire column of the refrigeration compressor is adapted, and the integrated mounting frame (3) together with the current starter (1) and the motor protector (2) are simultaneously plugged into the three-wire column of the refrigeration compressor.

2. The integrated structure of the current starter and the motor protector according to claim 1 is characterized in that: The front side of the current starter plug-in cavity (31) is formed with a current starter plug-in cavity front side plate (311), the rear side is formed with a current starter plug-in cavity rear side plate (312), the right side of the current starter plug-in cavity (31) is formed with a current starter plug-in cavity right side plate (313), the bottom of the current starter plug-in cavity (31) is formed with a current starter plug-in cavity bottom plate (314), the left side of the current starter plug-in cavity (31) is formed as a current starter plug-in cavity opening (315), and the current starter plug-in cavity front side plate (311) and the current starter plug-in cavity rear side plate (312) correspond to each other; A motor protector left baffle (321) is formed on the left side of the motor protector insertion cavity (32), a motor protector front baffle (322) is formed on the front side, and a motor protector rear baffle (323) is formed on the rear side. The motor protector insertion cavity bottom plate (324) of the motor protector insertion cavity (32) and the area corresponding to the top of the current starter insertion cavity (31) are simultaneously formed as the current starter insertion cavity top plate. The right side of the motor protector insertion cavity (32) is formed as the motor protector insertion cavity opening (325). The motor protector front baffle (322) and the motor protector rear baffle (323) are correspond to each other; after the right end of the current starter (1) is inserted into the current starter insertion cavity (31) from the opening (315) of the current starter insertion cavity, the front side plate (311) of the current starter insertion cavity is tightly fitted with the front side wall of the right end of the current starter (1), the rear side plate (312) of the current starter insertion cavity is tightly fitted with the rear side wall of the right end of the current starter (1), and at the same time, the motor protector insertion cavity bottom plate (324) corresponding to the top area of ​​the current starter insertion cavity (31) is tightly fitted with the top of the right end of the current starter (1), so that the current starter (1) and the current starter (1) are tightly connected. The starter plug-in cavity (31) is inserted and fixed; after the motor protector (2) is inserted into the motor protector plug-in cavity (32) from the motor protector plug-in cavity opening (325), the motor protector left baffle (321) limits the left end of the motor protector (2), and the motor protector front baffle (322) and the motor protector rear baffle (323) respectively limit the front side and rear side of the motor protector (2); in the use state, the right side plate (313) of the current starter plug-in cavity and the motor protector plug-in cavity opening (325) face the three-wire column of the refrigeration compressor.

3. The integrated structure of the current starter and the motor protector according to claim 2 is characterized in that: A rivet end flange clearance groove (3141) is formed on a side of the current starter insertion cavity bottom plate (314) of the current starter insertion cavity (31) facing the current starter insertion cavity (31) and located in the middle of the length direction of the current starter insertion cavity bottom plate (314). The current starter (1) comprises a current starter housing (11) and a current starter cover plate (12). The left and right ends of the current starter cover plate (12) are respectively fixed to the current starter housing (11) by a current starter cover plate blind aluminum rivet (121), wherein the rivet end flange (1211) at the lower end of the current starter cover plate blind aluminum rivet (121) located at the right end protrudes from the bottom surface of the current starter housing (11) and is aligned with the rivet end flange clearance groove ( 3141); a cover plate latch flange (122) protruding from the surface of the current starter cover plate (12) is formed at a central position on the upper right end of the current starter cover plate (12) and at a position corresponding to the upper end of the current starter cover plate core-pulling aluminum rivet (121) at the right end; a cover plate latch flange engaging cavity (3241) penetrating the thickness direction of the motor protector plug-in cavity bottom plate (324) is provided on the motor protector plug-in cavity bottom plate (324) and at a position corresponding to the cover plate latch flange (122); the cover plate latch flange (122) is engaged with the cover plate latch flange engaging cavity (3241); the cover plate latch flange (122) located at the upper right end of the current starter cover plate (12) protrudes into the cover plate latch flange concave cavity (1221).

4. The integrated structure of the current starter and the motor protector according to claim 3 is characterized in that: The current starter (1) comprises an S pin (13a) and an M pin (13b), wherein the S pin (13a) and the M pin (13b) are arranged in the current starter housing (11) and are located at the right end of the current starter housing (11), and a current starter S pin electrical connection clearance hole (14a) is provided on the right end wall of the current starter housing (11) at a position corresponding to the S pin (13a), and an electrical starter S pin electrical connection clearance hole (14a) is provided at a position corresponding to the M pin (13b). The motor protector (2) comprises a motor protector pin (21), the motor protector pin (21) being arranged on the side of the motor protector cover (22) facing away from the shield (23), and the motor protector pin hole of the motor protector pin (21) corresponds to the motor protector pin electrical connection clearance hole (221) provided on the right end wall of the motor protector cover (2 ... An S-pin three-wire terminal introduction hole (3131) is provided on the side plate (313) at a position corresponding to the current starter S-pin electrical connection clearance hole (14a), and an M-pin three-wire terminal introduction hole (3132) is provided at a position corresponding to the current starter M-pin electrical connection clearance hole (14b); the S-pin three-wire terminal introduction hole (3131), the M-pin three-wire terminal introduction hole (3132) and the motor protector pin electrical connection clearance hole (221) are connected to the The directions of the three-wire posts of the refrigeration compressor are connected in the same manner and the spacing between the three-wire posts of the refrigeration compressor is adapted to each other. When the S-pin three-wire post terminal introduction hole (3131), the M-pin three-wire post terminal introduction hole (3132) and the motor protector pin electrical connection clearance hole (221) are plugged with the three-wire post at positions corresponding to the three-wire posts of the refrigeration compressor, the S-pin (13a), the M-pin (13b) and the motor protector pin (21) are plugged with the three-wire post of the refrigeration compressor at one time.

5. The integrated structure of the current starter and the motor protector according to claim 4 is characterized in that: The S-pin three-wire terminal introduction hole (3131), the M-pin three-wire terminal introduction hole (3132) and the motor protector pin electrical connection clearance hole (221) form a triangular position distribution relationship with each other.

6. The integrated structure of the current starter and the motor protector according to claim 4 is characterized in that: A motor protector cover guide surface step (33) is formed on the left side facing each other and at corresponding positions of the motor protector front baffle (322) and the motor protector rear baffle (323), and a motor protector cover sliding guide surface (222) is formed on the surface of the motor protector cover (22) facing away from the protective cover (23) and at a position corresponding to the motor protector cover guide surface step (33), and the motor protector cover sliding guide surface (222) is slidably matched with the motor protector cover guide surface step (33).

7. The integrated structure of the current starter and the motor protector according to claim 4 is characterized in that: A protector hook (3242) is formed on the upward side of the motor protector insertion cavity bottom plate (324) of the motor protector insertion cavity (32) and at a position corresponding to the right side surface of the left baffle plate (321) of the motor protector. An electrical connection piece limiting block (223) for limiting a protector pin electrical connection piece (211) electrically connected to the motor protector pin (21) is formed on the side of the motor protector cover (22) of the motor protector (2) facing away from the protective cover (23) and at a position corresponding to the hook (3242). The limiting block right side surface (2231) of the electrical connection piece limiting block (223) is hooked with the hook (3242).

8. The integrated structure of the current starter and the motor protector according to claim 4, characterized in that: A front baffle folded edge (3221) is folded and unfolded at the upper part of the front baffle (322) of the motor protector in the direction of the rear baffle (323) of the motor protector, and a rear baffle folded edge (3231) is folded and unfolded at the upper part of the rear baffle (323) of the motor protector in the direction of the front baffle (322) of the motor protector. The front baffle folded edge (3221) is in close contact with the edge of the front upper surface of the protective cover (23), and the rear baffle folded edge (3231) is in close contact with the edge of the rear upper surface of the protective cover (23).

9. The integrated structure of the current starter and the motor protector according to claim 3, characterized in that: A current starter plug-in cavity front side plate latch flange embedding cavity (3111) is provided on the current starter plug-in cavity front side plate (311) and penetrates the current starter plug-in cavity front side plate (311) in the thickness direction. A current starter housing position transfer latch flange is formed on the right front side surface of the current starter housing (11) and at a position corresponding to the current starter plug-in cavity front side plate latch flange embedding cavity (3111). The current starter housing position transfer latch flange is embedded with the current starter plug-in cavity front side plate latch flange embedding cavity (3111).

10. The integrated structure of current starter and motor protector according to claim 3, characterized in that: A current starter housing bottom latch flange embedding cavity (3142) is provided on the current starter inserting cavity bottom plate (314) and is located in the middle of the current starter inserting cavity bottom plate (314) in the length direction, penetrating the current starter inserting cavity bottom plate (314) in the thickness direction. A current starter housing bottom latch flange protruding from the bottom surface of the current starter housing is formed at the right end bottom of the current starter housing (11) and at a position corresponding to the current starter housing bottom latch flange embedding cavity (3142). The current starter housing bottom latch flange is embedded in the current starter housing bottom latch flange embedding cavity (3142).

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