Counter weight starter for compressor and refrigerator compressor

Abstract

The utility model belongs to the technical field of refrigerator compressors, and particularly discloses a heavy hammer starter for a compressor and the refrigerator compressor. According to the heavy hammer starter for the compressor, the heavy hammer starter is applied to the refrigerator compressor, the first connecting part and the third inserting piece are arranged on the starter body side by side, and after the first inserting piece and the third inserting piece are connected with the wiring ends of the first capacitor and the second capacitor, leads between the first capacitor and the starter as well as between the second capacitor and the starter are located on one side of the starter body; the lead is far away from the excitation coil, so that abrasion to the coil is reduced or even avoided; wiring terminals of the first capacitor and the second capacitor can be designed to be of an integrated socket structure, and connection and disassembly are convenient. The protective cover is arranged and extends downwards, so that when the starter is electrically connected and installed, the protective cover is matched with the compressor in a limiting mode, and the situation that an insertion piece deforms or loosens due to the fact that the holding posture or force exertion of an installation person is not correct is avoided; in addition, the shield half wraps the insertion sheet, so that mistaken touch is avoided, and the electrical safety risk is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerator compressors and relates to a weight hammer starter for a compressor and a refrigerator compressor. Background Art

[0002] The fixed-frequency refrigerator compressor is started by an external starter, among which the heavy hammer starter is an important type of refrigerator compressor starter. The heavy hammer starter is mainly composed of an excitation coil, an armature (heavy hammer), a moving contact and a fixed contact. The heavy hammer starter needs to be electrically connected to the compressor, the capacitor and the power supply end, among which the capacitor is used to realize capacitor phase separation so that the current in the two windings has a phase difference of nearly ninety degrees to generate a rotating magnetic field. Correspondingly, it is necessary to set a plurality of plugs and jacks on the heavy hammer starter, and connect the compressor, the capacitor and the wiring terminals of the power supply end through the plugs (jacks). However, the current heavy hammer starter has an unreasonable arrangement of the plugs and jacks, and the leads connected to the plugs and jacks are relatively messy, especially the leads between the capacitor and the starter will cross the excitation coil at the bottom of the starter. When the compressor is running and vibrating, there is a risk that the leads on both sides touch the coil, causing wear and short circuit and ignition, and even causing the compressor to be powered on for a long time without starting, causing the compressor to be high temperature and short circuit, and there is a large electrical safety risk. In addition, the plug on the starter is exposed. When installing the starter's electrical connection, a certain amount of force is required to insert the starter into the pin of the compressor's sealed terminal. At this time, the starter needs to be held in hand. If the installer holds it or applies force incorrectly, it is easy to cause the plug to deform or loosen. Moreover, the exposed plug also poses a certain electrical safety risk. Utility Model Content

[0003] The utility model aims to provide a weight starter for a compressor and a refrigerator compressor, optimize the arrangement of plugs and sockets on the starter, reduce or even avoid the wear of the coil, and facilitate the connection and disassembly of the plugs and sockets.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A weight starter for a compressor comprises a starter body and an excitation coil, an armature, a moving contact and a fixed contact arranged on the starter body;

[0006] A pair of first connecting parts are arranged side by side on the starter body, one end of the first connecting part is arranged as a socket, and the other end of the first connecting part is arranged as a first plug piece;

[0007] A first connection part is connected to a fixed contact, a socket of the first connection part is used to connect to a starting winding terminal of the compressor, and a first plug of the first connection part is used to connect to a first terminal of a first capacitor;

[0008] Another first connection part is connected to the first terminal of the excitation coil, the jack of another first connection part is used to connect to the running winding terminal of the compressor, and the first plug of another first connection part is used to connect to the second terminal of the first capacitor;

[0009] Another fixed contact and the second terminal of the excitation coil are commonly connected to a second plug-in piece, the second plug-in piece is arranged on the starter body, and the second plug-in piece is used to connect the L terminal of the power supply connector.

[0010] Preferably, a pair of third plugs are arranged side by side on the starter body, one third plug is connected to another fixed contact, and the other third plug is connected to the second plug, and the pair of third plugs are used to connect two terminals of the second capacitor.

[0011] Preferably, a resistor is connected between the other third plug-in piece and the second plug-in piece.

[0012] Preferably, the resistor is located at an upper end surface of the starter body.

[0013] Preferably, a pair of third inserts are located on the circumferential side surface of the starter body.

[0014] Preferably, a first shield is provided on one side of the upper end surface of the starter body, the first shield extends downward, a first assembly space is left between the first shield and the starter body, and a pair of third inserts are located in the first assembly space.

[0015] Preferably, a pair of first connecting portions and the second inserting piece are located on the circumferential side surface of the starter body.

[0016] Preferably, a second shield is provided on one side of the upper end surface of the starter body, the second shield extends downward, a second assembly space is left between the second shield and the starter body, and the second insert is located in the second assembly space.

[0017] Preferably, the first plug extends downward, and the first plug is located at the lower end of the starter body.

[0018] A refrigerator compressor is provided with the above-mentioned compressor weight starter.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] As described above, the utility model relates to a weight starter for a compressor, which is applied to a refrigerator compressor. The two first connection parts have sockets that can be directly electrically connected to the two ends of the starting winding and the running winding, so that the first connection parts can be arranged side by side on the starter body, so that after the first plug is connected to the first terminal and the second terminal of the first capacitor, the lead between the first capacitor and the starter is located on one side of the starter body, and the lead is away from the excitation coil, thereby reducing or even avoiding wear on the coil; a pair of first plugs are arranged side by side, and the first terminal and the second terminal of the first capacitor can be designed as an integrated socket structure for easy connection and disassembly; a pair of first plugs are arranged side by side, and the first terminal and the second terminal of the first capacitor can be designed as an integrated socket structure for easy connection and disassembly; The three plugs are arranged side by side on the starter body, so that after the third plug is connected to the two terminals of the second capacitor, the lead between the second capacitor and the starter is located on one side of the starter body, and the lead is away from the excitation coil, reducing or even avoiding the wear of the coil; a pair of third plugs are arranged side by side, and the two terminals of the second capacitor can also be designed as an integrated socket structure, which is convenient for connection and disassembly; by setting a protective cover, the protective cover extends downward, so that when the starter electrical connection is installed, the protective cover and the compressor limit position are cooperated to avoid deformation or loosening of the plug due to improper grip or force of the installer; in addition, the protective cover half wraps the plug to avoid accidental touch and reduce electrical safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model 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.

[0022] Figure 1 This is a schematic diagram of a weight starter for a compressor according to an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the capacitor (first capacitor, second capacitor) and its leads and integrated socket according to the embodiment of the utility model;

[0024] Figure 3 The utility model is a three-dimensional diagram of a compressor heavy hammer starter Figure 1 ;

[0025] Figure 4 The utility model is a three-dimensional diagram of a compressor heavy hammer starter Figure 2 ;

[0026] Figure 5 The utility model is a three-dimensional diagram of a compressor heavy hammer starter Figure 3 ;

[0027] Figure 6 This is a front view of a weight starter for a compressor according to an embodiment of the utility model;

[0028] Figure 7This is a rear view of the weight starter for a compressor according to an embodiment of the utility model;

[0029] Figure 8 This is a left side view of a weight starter for a compressor according to an embodiment of the utility model;

[0030] Fig. 9 This is a right side view of the weight starter for a compressor according to an embodiment of the utility model;

[0031] Fig.10 A top view of a weight starter for a compressor according to an embodiment of the utility model;

[0032] Fig.11 This is a bottom view of the weight starter for a compressor according to an embodiment of the utility model. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] Example:

[0040] like Figures 1 to 11 As shown, the compressor weight starter in this embodiment includes a starter body 1 and an excitation coil 11, an armature 12, a moving contact 13 and a fixed contact 14 arranged on the starter body 1.

[0041] A pair of first connection parts are arranged side by side on the starter body 1 , one end of the first connection part is arranged as a plug hole 21 , and the other end of the first connection part is arranged as a first plug piece 22 .

[0042] A first connection part is connected to a fixed contact 14, a socket 21 of a first connection part is used to connect to a terminal of a start winding 31 of a compressor, and a first plug 22 of a first connection part is used to connect to a first terminal of a first capacitor C1.

[0043] Another first connection part is connected to the first terminal of the excitation coil 11, the jack 21 of another first connection part is used to connect to the terminal of the running winding 32 of the compressor, and the first plug 22 of another first connection part is used to connect to the second terminal of the first capacitor C1.

[0044] Another fixed contact 14 and the second terminal of the excitation coil 11 are commonly connected to a second plug-in piece 23 . The second plug-in piece 23 is disposed on the starter body 1 . The second plug-in piece 23 is used to connect to the L terminal of the power supply connector.

[0045] The jacks 21 of the two first connection parts can be directly electrically connected to the two ends of the starting winding 31 and the running winding 32, so that the first connection parts are arranged side by side on the starter body 1, and then the two first plug-ins 22 are arranged side by side on the starter body 1, so that after the first plug-in 22 is connected to the first terminal and the second terminal of the first capacitor C1, the lead 41 between the first capacitor C1 and the starter is located on one side of the starter body 1, and the lead 41 is away from the excitation coil 11, reducing or even avoiding the wear on the excitation coil 11. A pair of first plug-ins 22 are arranged side by side, and the first terminal and the second terminal of the first capacitor C1 can be designed as an integrated socket 42 structure, and the first terminal and the second terminal of the first capacitor C1 are arranged on the integrated socket 42, which facilitates the connection and removal of the first plug-in 22.

[0046] A pair of third plugs 24 are arranged side by side on the starter body 1, one third plug 24 is connected to another fixed contact 14, and the other third plug 24 is connected to the second plug 23. The pair of third plugs 24 is used to connect two terminals of the second capacitor C2.

[0047] A pair of third plugs 24 are arranged side by side, so that after the third plugs 24 are connected to the two terminals of the second capacitor C2, the lead 41 between the second capacitor C2 and the starter is located on one side of the starter body 1, and the lead 41 is away from the excitation coil 11, reducing or even avoiding the wear of the excitation coil 11. A pair of third plugs 24 are arranged side by side, and the two terminals of the second capacitor C2 can also be designed as an integrated socket 42 structure, and the two terminals of the second capacitor C2 are arranged on the integrated socket 42, which facilitates the connection and removal of the third plugs 24.

[0048] Among them, the first capacitor C1 is always connected to the starting winding 31 and the running winding 32. The first capacitor C1 operates for a long time, so that the compressor motor has a higher efficiency and power factor, forms a rotating magnetic field, and drives the rotor to rotate. The second capacitor C2 only operates in the starting stage of the compressor motor. After being connected in series, the motor can obtain a larger starting torque, a smaller starting current, and a good starting performance.

[0049] A resistor 5 is connected between the other third plug 24 and the second plug 23. When the compressor motor is just connected to the power connector, the motor does not rotate. At that moment, it is equivalent to connecting a resistor of about 20Ω. The current in the circuit will be very large, which is easy to impact the starter circuit. Therefore, a 15Ω resistor 5 is connected in series.

[0050] The resistor 5 is located at the upper end surface of the starter body 1 to make the starter structure more compact.

[0051] A pair of third plugs 24 are located on the circumferential side of the starter body 1 to make the starter structure more compact and facilitate the connection and removal of the third plugs 24 .

[0052] A first shield 61 is provided on one side of the upper end surface of the starter body 1. The first shield 61 extends downward. A first assembly space is left between the first shield 61 and the starter body 1. A pair of third inserts 24 are located in the first assembly space.

[0053] A pair of first connection parts and the second plug piece 23 are located on the circumferential side of the starter body 1 to make the starter structure more compact and facilitate the connection and removal of the first connection part and the second plug piece 23.

[0054] A second shield 62 is provided on one side of the upper end surface of the starter body 1. The second shield 62 extends downward. A second assembly space is left between the second shield 62 and the starter body 1. The second insert 23 is located in the second assembly space.

[0055] By setting up protective shields (first protective shield 61, second protective shield 62), the protective shields extend downward so that when the starter electrical connection is installed, the protective shields cooperate with the compressor to limit the position, thereby preventing the installer from holding the plug incorrectly or applying force, which may cause deformation or loosening; in addition, the protective shields half-wrap the plug to avoid accidental touching and reduce electrical safety risks.

[0056] The first plug piece 22 extends downward, and the first plug piece 22 is located at the lower end of the starter body 1. In this way, the outer structure of the starter is more compact, and the connection and removal of the first plug piece 22 are convenient.

[0057] A refrigerator compressor is provided with the compressor weight starter described in the embodiment.

[0058] So far, the present embodiment has been described in detail in conjunction with the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the crankshaft matching and refrigerator compressor device of the present utility model. Of course, the above is only a preferred embodiment of the present utility model, and does not limit the patent scope of the present utility model. All equivalent structural changes made by using the contents of the present utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present utility model and should be protected by the present utility model.

Claims

1. A weight starter for a compressor, comprising a starter body and an excitation coil, an armature, a moving contact and a fixed contact arranged on the starter body; characterized in that: A pair of first connecting parts are arranged side by side on the starter body, one end of the first connecting part is arranged as a socket, and the other end of the first connecting part is arranged as a first plug piece; A first connection part is connected to a fixed contact, a socket of the first connection part is used to connect to a starting winding terminal of the compressor, and a first plug of the first connection part is used to connect to a first terminal of a first capacitor; Another first connection part is connected to the first terminal of the excitation coil, the jack of another first connection part is used to connect to the running winding terminal of the compressor, and the first plug of another first connection part is used to connect to the second terminal of the first capacitor; Another fixed contact and the second terminal of the excitation coil are commonly connected to a second plug-in piece, the second plug-in piece is arranged on the starter body, and the second plug-in piece is used to connect the L terminal of the power supply connector.

2. The compressor weight starter according to claim 1, characterized in that: A pair of third plugs are arranged side by side on the starter body, one third plug is connected to another fixed contact, and the other third plug is connected to the second plug. The pair of third plugs is used to connect two terminals of the second capacitor.

3. The compressor weight starter according to claim 2, characterized in that: A resistor is connected between another third plug-in piece and the second plug-in piece.

4. The compressor weight starter according to claim 3, characterized in that: The resistor is located at the upper end surface of the starter body.

5. The compressor weight starter according to claim 2, characterized in that: A pair of third inserting pieces are located on the circumferential side surfaces of the starter body.

6. The compressor weight starter according to claim 5, characterized in that: A first shield is disposed on one side of the upper end surface of the starter body. The first shield extends downward. A first assembly space is reserved between the first shield and the starter body. A pair of third inserts are located in the first assembly space.

7. The compressor weight starter according to claim 1, characterized in that: The second insert piece is located on the circumferential side surface of the starter body.

8. The compressor weight starter according to claim 7, characterized in that: A second shield is provided on one side of the upper end surface of the starter body. The second shield extends downward. A second assembly space is reserved between the second shield and the starter body. The second insert is located in the second assembly space.

9. The compressor weight starter according to claim 1, characterized in that: The first plug-in piece extends downward, and the first plug-in piece is located at the lower end of the starter body.

10. A refrigerator compressor, characterized in that: The refrigerator compressor is provided with a compressor weight starter as described in any one of claims 1 to 9.

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