CN218217133U

CN218217133U - Heavy hammer type current starter with operation protection function

Info

Publication number: CN218217133U
Application number: CN202222566519.9U
Authority: CN
Inventors: 赵云文
Original assignee: Changshu Tianyin Electromechanical Co Ltd
Current assignee: Changshu Tianyin Electromechanical Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-01-03
Anticipated expiration: 2032-09-27

Abstract

A weight type current starter with an operation protection function belongs to the technical field of starting devices of refrigeration compressors. Comprises a base; the duplex plug-in sheet, it combines the leading-out terminal with main, secondary winding of the motor to form a pair of power connection terminals to connect external AC power; a coil, the one end of coil with the first arm electricity of participating in is connected, still includes the fuse, the fuse has been seted up at the position of left side rear end to the base holds the chamber to the rear side that holds the chamber at the fuse is opened and is equipped with fuse connecting plate slot, a fuse connecting plate insert establish in this fuse connecting plate slot and the bottom with the other end electricity of coil is connected, the fuse setting hold the intracavity at the fuse, the pin of fuse one end with the electricity is connected to the pair inserted sheet is participated in, and the pin of the other end then with the upper end electricity of fuse connecting plate is connected. The advantages are that: the power supply to the coil can be cut off in time, potential safety hazards such as fire hazards are avoided, and the working reliability of the starter is effectively improved.

Description

Heavy hammer type current starter with operation protection function

Technical Field

The utility model belongs to the technical field of the refrigeration compressor starting drive, concretely relates to weight formula current starter with operation protect function.

Background

The hammer type current starter is used for starting the compressor to run, and at present, the weight starter is generally adopted as a starting element for the refrigeration compressor used by the commercial refrigeration unit. The heavy hammer type current starter is composed of a driving coil, a heavy hammer (armature), a contact and the like, wherein the driving coil is connected in series in a working winding of the motor when working, and a static contact is connected in series in a starting winding of the motor. The technology of a plurality of weight type current starters is provided in the published patent documents, and the Chinese utility model patent publication No. CN2733039Y introduces 'a totally-enclosed weight starter for an R600aZ refrigerating compressor', solves the problem that electric sparks generated between movable contacts and static contacts leak to easily cause small-range explosion; as well as the improved structure heavy hammer type current starter introduced in the chinese patent application publication No. CN106452193A, the surge current generated at the starting moment of the refrigeration compressor is suppressed, the anti-interference capability of the power supply is improved, and the working life and reliability of the starter are improved. However, in view of the related patents of the prior art weight dropper starter, the following drawbacks are still found: can produce the heavy current when disconnected (short circuit) appears in the refrigeration compressor coil, arouse the potential safety hazard such as conflagration, great electric current can make the contact strike sparks, the phenomenon of adhesion appears, finally can lead to motor winding to burn because the weight starter breaks off in time, can also arouse the conflagration even in the serious time.

In view of the above-mentioned prior art, the applicant has made an advantageous design, and the technical solutions described below have been made in this context.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a weight formula current starter with operation protect function can in time break off the motor winding when the refrigeration compressor coil produces the heavy current because of appearing disconnected (short circuit).

The utility model aims at achieving the purpose, a heavy hammer type current starter with operation protection function, which comprises a base, wherein the base is provided with a base cavity with an upward opening, the center of the base cavity is provided with an armature abdicating hole penetrating through the bottom wall of the base cavity, the left end of the front side of the base is provided with a duplex inserted sheet pin slot which is communicated with the first pin arm slot from the upper surface of the base to the bottom, the right end of the front side of the base is provided with a first pin arm slot, the front end of the right side of the base is provided with a first pin cavity, the first pin cavity is communicated with the first pin arm slot, the right side of the base is provided with a second pin cavity at the rear side of the first pin cavity, the rear side of the base is provided with a first contact pin abdicating slot and a second contact pin abdicating slot at an interval, the first contact pin abdicating slot is positioned at the second contact pin abdicating slot, the base cavity is provided with a cover plate at the right side, and the base cavity is provided with a protection opening; the duplex plug-in sheet is provided with a duplex plug-in sheet first pin, a duplex plug-in sheet second pin and a duplex plug-in sheet pin, the duplex plug-in sheet pin is inserted into the duplex plug-in sheet pin groove and extends downwards to the bottom of the duplex plug-in sheet pin groove, the duplex plug-in sheet first pin and the duplex plug-in sheet second pin are positioned on the front side of the base, and the duplex plug-in sheet, a motor main winding and a motor secondary winding combined leading-out end form a pair of power supply wiring ends connected with an external alternating current power supply; the first pin is inserted into the first pin cavity and used for being connected with a leading-out end of a main winding of the electric motor, a first pin arm is bent and extended at the base part of the first pin, and the first pin arm is embedded in the first pin arm embedding groove; the second pin is inserted into the second pin cavity and is used for connecting a leading-out end of a motor secondary winding, the second pin extends upwards to form a first static contact piece, a first static contact is arranged on one downward side of the front end of the first static contact piece, and the rear end of the first static contact piece extends out of the rear side face of the base at a position corresponding to the first static contact piece pin abdicating groove to form a first static contact piece connecting pin; the second static contact piece is arranged on the left side of the first static contact piece in parallel with the first static contact piece, a second static contact is arranged on one downward side of the front end of the second static contact piece, and the rear end of the second static contact piece extends out of the rear side face of the base at a position corresponding to the abdicating groove of the second static contact piece foot to form a second static contact piece connecting foot; the moving contact mechanism is arranged on the base at a position corresponding to the armature abdicating hole, corresponds to the positions below the first static contact piece and the second static contact piece and is matched with the first static contact piece and the second static contact piece to act; a coil, this coil is around establishing on coil skeleton, and this coil skeleton is located the bottom of base and in the centre be formed with armature abdication hole corresponding coil skeleton centre bore, the one end of coil with first participate in the arm electricity and connect, characteristics are: still include the fuse, the fuse holds the chamber has been seted up at the position of left side rear end to the base to the upper surface that holds the chamber at the fuse and opens and be equipped with to the base link up to the fuse connecting plate slot of bottom, a fuse connecting plate insert establish in this fuse connecting plate slot and the bottom with the other end electricity of coil is connected, the fuse setting hold the intracavity at the fuse, the pin of fuse one end with the electricity is connected to double-gang inserted sheet is participated in, and the pin of the other end then with the upper end electricity of fuse connecting plate is connected.

In a specific embodiment of the present invention, the base further comprises an NTC thermistor and an NTC thermistor wire holder, the NTC thermistor wire holder slot is opened at the front end of the left side of the base, the NTC thermistor wire holder has a wire holder insert and a wire holder insert, the wire holder insert is inserted into the NTC thermistor wire holder slot, the wire holder is located at the front end of the left side of the base, and a lead terminal of the NTC thermistor is electrically connected to the NTC thermistor wire holder.

In another specific embodiment of the present invention, the first pin of the duplex insertion sheet is electrically connected to the other lead terminal of the NTC thermistor, the second pin of the duplex insertion sheet is electrically connected to one end of the capacitor of the refrigeration compressor motor, the other end of the capacitor of the refrigeration compressor motor is electrically connected to the first static contact connecting pin, the NTC thermistor connector is electrically connected to one end of the capacitor of the refrigeration compressor motor, and the other end of the capacitor of the refrigeration compressor motor is electrically connected to the second static contact connecting pin.

In another specific embodiment of the present invention, the first pin of the duplex insertion sheet is electrically connected to one end of the starting capacitor of the refrigeration compressor motor, the other end of the starting capacitor of the refrigeration compressor motor is electrically connected to the NTC thermistor connector, the other lead terminal of the NTC thermistor is electrically connected to the second static contact connecting pin, the second pin of the duplex insertion sheet is electrically connected to one end of the running capacitor of the refrigeration compressor motor, and the other end of the running capacitor of the refrigeration compressor motor is electrically connected to the first static contact connecting pin.

In another specific embodiment of the present invention, the first pin of the duplex insertion piece is electrically connected to one end of the starting capacitor of the refrigeration compressor motor, and the other end of the starting capacitor of the refrigeration compressor motor is electrically connected to the second static contact connecting pin.

In still another specific embodiment of the present invention, the second stationary contact connecting leg and the other end of the coil are commonly electrically connected to the other end of the fuse.

The utility model discloses a further a concrete embodiment, moving contact mechanism include movable contact spring, well core rod, spring and armature, the movable contact spring sets up in the base intracavity, in movable contact spring ascending one side and corresponding to the position of first stationary contact is equipped with first movable contact, and corresponding to the position of second stationary contact is equipped with the second movable contact, well core rod's upper end and the middle part fixed connection of movable contact spring, and well core rod's lower extreme constitutes for the free end and extends to in the coil skeleton centre bore of coil skeleton, the armature cover is established on well core rod and is located coil skeleton centre bore, is formed with a spring chamber on the upper portion of this armature, the spring housing is established on well core rod, and the upper end with movable contact spring is inconsistent and the lower extreme then supports on the chamber diapire in spring chamber.

In a more specific embodiment of the present invention, the coil bobbin is formed with a coil cavity around the outer wall, and the coil is wound in the coil cavity.

In yet another specific embodiment of the present invention, the coil bobbin is integrally formed at the bottom of the base.

The utility model discloses owing to add the fuse, when the compressor appears disconnected (short circuit) because of the coil and produces the heavy current, can in time break off the power supply to the coil, avoid taking place potential safety hazards such as conflagration, effectively improved the operational reliability of starter.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a schematic diagram of an electrical connection according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of an electrical connection according to another embodiment of the present invention.

Fig. 5 is a schematic diagram of an electrical connection according to another embodiment of the present invention.

Fig. 6 is a schematic diagram of an electrical connection according to another embodiment of the present invention.

In the figure: 1. the circuit comprises a base, 11, a base cavity, 111, an armature abdicating hole, 12, a duplex insertion piece pin slot, 13, a first pin arm caulking slot, 14, a first pin cavity, 15, a second pin cavity, 16a, a first static contact pin abdicating slot, 16b, a second static contact pin abdicating slot, 17, a cover plate, 18a, a fuse accommodating cavity, 18b, a fuse connecting plate slot and a 19.NTC thermistor wire holder slot; 2. the double-connection plug-in sheet comprises a double-connection plug-in sheet 21, a first pin of the double-connection plug-in sheet 22, a second pin of the double-connection plug-in sheet 23 and a plug pin of the double-connection plug-in sheet; 3. a first pin 31, a first pin arm; 4. the second pin, 41, the first static contact, 411, the first static contact, 412, the first static contact connecting pin; 5. the second static contact, 51, 52, the second static contact connecting pin; 6. the moving contact mechanism comprises a moving contact piece 61, a moving contact piece 611, a first moving contact point 612, a second moving contact point 62, a central rod 63, a spring 64, an armature 641 and a spring cavity; 7. a coil, 71, a coil frame, 711, a central hole of the coil frame, 712, a coil cavity; 8. fuse 81, fuse connection board; NTC thermistor; 10.NTC thermistor wire holder, 101. Wire connection pin, 102. Wire holder inserted sheet.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be considered as the protection scope of the present invention.

In the following description, any concept related to the directionality (or the directional property) of up, down, left, right, front, and rear is intended for the position state of the drawing being described, and is intended to facilitate understanding by the public, and thus should not be construed as a limitation to the technical solution provided by the present invention.

Referring to fig. 1 and 2, a weight type current starter with operation protection function includes a base 1, a duplex plug-in sheet 2, a first pin 3, a second pin 4, a second static contact sheet 5, a movable contact mechanism 6 and a coil 7. The base 1 has a base cavity 11 opening upward, and an armature receding hole 111 penetrating through the bottom wall of the base cavity 11 is formed in the center of the base cavity 11. A duplex insert pin slot 12 is formed in the left end of the front side of the base 1, and the duplex insert pin slot 12 penetrates from the upper surface to the bottom of the base 1. The right end of the front side of the base 1 is provided with a first pin arm caulking groove 13, the front end of the right side of the base 1 is provided with a first pin cavity 14, the first pin cavity 14 is communicated with the first pin arm caulking groove 13, and the right side of the base 1 and the rear part of the first pin cavity 14 are provided with a second pin cavity 15. A first static contact pin yielding groove 16a and a second static contact pin yielding groove 16b are arranged on the rear side of the base 1 at intervals, and the first static contact pin yielding groove 16a is positioned on the right of the second static contact pin yielding groove 16b. A cover plate 17 is disposed at the opening of the susceptor 1 to shield the susceptor chamber 11. The base 1 and the cover plate 17 are both made of plastic.

The duplex inserted sheet 2 has a duplex inserted sheet first pin 21, a duplex inserted sheet second pin 22 and a duplex inserted sheet pin 23, the duplex inserted sheet pin 23 insert and establish in duplex inserted sheet pin groove 12 and stretch out the bottom of duplex inserted sheet pin groove 12 downwards, duplex inserted sheet first pin 21 and duplex inserted sheet second pin 22 are located the front side of base 1. The first pin 3 is inserted into the first pin cavity 14 and is used for connecting with a main winding leading-out end M of the electric machine. The first pin 3 has a first pin arm 31 extending at a base thereof, and the first pin arm 31 is inserted into the first pin arm insertion groove 13. The second pin 4 is inserted into the second pin cavity 15 and is used for connecting a secondary winding leading-out end S of the motor. The second pin 4 extends upward to form a first static contact 41, a first static contact 411 is disposed on a downward side of a front end of the first static contact 41, and a rear end of the first static contact 41 protrudes out of a rear side surface of the base 1 at a position corresponding to the first static contact pin receding groove 16a to form a first static contact connecting pin 412. The second static contact piece 5 is arranged on the left side of the first static contact piece 41 in parallel with the first static contact piece 41, a second static contact 51 is arranged on the downward side of the front end of the second static contact piece 5, and the rear end of the second static contact piece 5 extends out of the rear side surface of the base 1 at a position corresponding to the second static contact piece foot abdicating groove 16b to form a second static contact piece connecting foot 52.

The movable contact mechanism 6 is arranged on the base 1 at a position corresponding to the armature abdicating hole 111, and simultaneously corresponds to the lower parts of the first static contact piece 41 and the second static contact piece 5, and realizes the matching action of contact or separation with the first static contact piece 41 and the second static contact piece 5. The coil 7 is provided with a coil frame 71, the coil frame 71 is provided with a coil cavity 712 around the outer wall, and the coil 7 is wound in the coil cavity 712. Coil skeleton 71 an organic whole constitutes in the bottom of base 1 to be formed with in the centre with armature abdication hole 111 corresponds coil skeleton centre bore 711, armature abdication hole 111 equals with coil skeleton centre bore 711 internal diameter. One end of the coil 7 is electrically connected to the first pin arm 31. The movable contact mechanism 6 includes a movable contact piece 61, a central rod 62, a spring 63 and an armature 64. The movable contact piece 61 is disposed in the base chamber 11, and a first movable contact 611 is provided at a side of the movable contact piece 61 facing upward and at a position corresponding to the first stationary contact 411, and a second movable contact 612 is provided at a position corresponding to the second stationary contact 51. The upper end of the center rod 62 is fixedly connected to the middle of the movable contact piece 61, and the lower end of the center rod 62 is configured as a free end and extends into the bobbin center hole 711 of the bobbin 71. The armature 64 is mounted on the central rod 62 and is located within the bobbin central bore 711. A spring chamber 641 is formed in the upper portion of the armature 64, the spring 63 is fitted over the central rod 62, and the upper end thereof is abutted against the movable contact piece 61 while the lower end thereof is supported on the chamber bottom wall of the spring chamber 641.

The utility model discloses an improvement lies in still including fuse 8, base 1 has seted up the fuse in the position of left side rear end and has held chamber 18a to the fuse connecting plate slot 18b that link up to the bottom to the upper surface of base 1 is seted up to the rear side that holds chamber 18a at the fuse. A fuse connecting plate 81 is inserted into the fuse connecting plate insertion slot 18b and the bottom end is electrically connected to the other end of the coil 7. The fuse 8 is arranged in the fuse accommodating cavity 18a, a pin at one end of the fuse 8 is electrically connected with the duplex plug-in pin 23, and a pin at the other end is electrically connected with the upper end of the fuse connecting plate 81 to realize the connection with the coil 7.

Further, the utility model discloses still include NTC thermistor 9 and NTC thermistor connection terminal 10.NTC thermistor connection terminal slot 19 has been seted up at the left side front end to base 1, NTC thermistor connection terminal 10 has a connection pin 101 and a connection terminal inserted sheet 102, and connection terminal inserted sheet 102 is inserted and is established in NTC thermistor connection terminal slot 19, connection pin 101 be located the left side front end of base 1. One lead terminal of the NTC thermistor 9 is electrically connected to the NTC thermistor wire holder 10. The NTC thermistor 9 is a negative temperature system thermistor, and has the characteristics of: the resistance value is high in the case of no energization, and is high at the instant of energization, so that the inrush current (surge) can be suppressed. As the current passes, the resistance of the NTC thermistor 9 will drop to a negligible extent.

Example 1:

referring to fig. 3, in the present embodiment, the first pin 21 of the duplex plug-in sheet is electrically connected to the other lead terminal of the NTC thermistor 9, the second pin 22 of the duplex plug-in sheet is electrically connected to one end of the refrigeration compressor motor running capacitor C1, and the other end of the refrigeration compressor motor running capacitor C1 is electrically connected to the first static contact connecting pin 412. An NTC thermistor connection socket 10 electrically connected to one lead terminal of the NTC thermistor 9 is electrically connected to one end of a starting capacitor C2 of a motor of the refrigeration compressor, and the other end of the starting capacitor C2 of the motor of the refrigeration compressor is electrically connected to the second static contact connection pin 52. The second pin 4 is connected with a motor secondary winding leading-out end S, and the first pin 3 is connected with a motor main winding leading-out end M. The duplex inserting sheet 2 and the combined leading-out end C of the main winding and the auxiliary winding of the motor form a pair of power supply wiring ends connected with an external alternating current power supply.

When the power supply is connected, the starting current is large, the coil 7 generates large electromagnetic force, the armature 64 moves under the action of the electromagnetic force, the first movable contact 611 and the second movable contact 612 on the movable contact piece 61 are respectively contacted with the first fixed contact 411 and the second fixed contact 52, the starting winding of the refrigeration compressor is connected into the circuit, and the compressor starts to operate. Then, the starting current gradually decreases until the electromagnetic force on the starter no longer attracts the armature 64, the armature 64 falls to disconnect the first movable contact 611 and the second movable contact 612 from the first stationary contact 411 and the second stationary contact 52, respectively, to disconnect the starting winding from the circuit, and the starter completes the starting task. The pin of 8 one ends of fuse is passed through pair inserted sheet is participated in 23 and is connected with the power, and the pin of the other end then is connected with coil 7 electricity, and fuse 8 concatenates between power and coil 7 promptly, and when compressor produced the heavy current because of coil 7 appears breaking (short circuit), and this heavy current surpassed fuse 8's specified value, fuse 8 can in time break, cuts off the power supply to coil 7, has improved the operational reliability of starter.

Example 2:

referring to fig. 4, in the present embodiment, the first pin 21 of the duplex tab is electrically connected to one end of a starting capacitor C2 of the motor of the refrigeration compressor, and the other end of the starting capacitor C2 of the motor of the refrigeration compressor is electrically connected to the NTC thermistor connector holder 10. The other lead terminal of the NTC thermistor 9 is electrically connected to the second stationary contact connecting pin 52. The duplex insert second pin 22 is electrically connected with one end of a refrigeration compressor motor running capacitor C1, and the other end of the refrigeration compressor motor running capacitor C1 is electrically connected with the first static contact connecting pin 412. The rest is the same as in example 1.

Example 3:

referring to fig. 5, in the present embodiment, the refrigeration compressor motor running capacitor C1 and the NTC thermistor 9 are not provided. The first pin 21 of the duplex plug-in sheet is electrically connected with one end of a starting capacitor C2 of a motor of the refrigeration compressor, and the other end of the starting capacitor C2 of the motor of the refrigeration compressor is electrically connected with the second static contact connecting pin 52. The rest of the process was the same as in example 2.

Example 4:

referring to fig. 6, in this embodiment, the refrigeration compressor motor running capacitor C1, the refrigeration compressor motor starting capacitor C2, and the NTC thermistor 9 are not provided, and the second static contact connecting pin 52 and the other end of the coil 7 are commonly electrically connected to the other end of the fuse 8. The rest of the procedure was the same as in example 3.

Claims

1. A heavy hammer type current starter with an operation protection function comprises a base (1), wherein the base (1) is provided with a base cavity (11) with an upward opening, an armature abdicating hole (111) penetrating through the bottom wall of the base cavity (11) is formed in the center of the base cavity (11), a duplex inserted sheet pin slot (12) is formed in the left end of the front side of the base (1), the duplex inserted sheet pin slot (12) penetrates from the upper surface to the bottom of the base (1), a first pin arm caulking slot (13) is formed in the right end of the front side of the base (1), a first pin cavity (14) is formed in the front end of the right side of the base (1), the first pin cavity (14) is communicated with the first pin arm caulking slot (13), a second pin cavity (15) is formed in the right side of the base (1) and behind the first pin cavity (14), a first static contact piece pin abdicating slot (16 a) and a second contact piece (16 b) are formed in the rear side of the base (1) at intervals, and a cover plate (17) is provided with a second contact piece abdicating slot (16 a) which is positioned at the opening of the base cavity (11) and is provided with a second contact piece abdicating slot (16 a) which is arranged at the opening; the duplex plug-in sheet (2), the said duplex plug-in sheet (2) has first pin (21) of duplex plug-in sheet, second pin (22) of duplex plug-in sheet and duplex plug-in sheet pin (23), the said duplex plug-in sheet pin (23) insert in duplex plug-in sheet pin slot (12) and stretch out the bottom of the duplex plug-in sheet pin slot (12) downward, duplex plug-in sheet first pin (21) and duplex plug-in sheet second pin (22) locate at the front side of the said base (1), the said duplex plug-in sheet (2) and motor main, secondary winding merge and draw the end (C) to form a pair of power connection terminals to connect external AC power; the first pin (3) is inserted into the first pin cavity (14) and is used for connecting a main winding leading-out end (M) of the motor, the first pin (3) is bent and extended at the base part to form a first pin arm (31), and the first pin arm (31) is embedded in the first pin arm embedding groove (13); the second pin (4) is inserted into the second pin cavity (15) and used for being connected with a motor secondary winding leading-out end (S), the second pin (4) extends upwards to form a first static contact piece (41), a first static contact point (411) is arranged on one downward side of the front end of the first static contact piece (41), and the rear end of the first static contact piece (41) extends out of the rear side face of the base (1) at a position corresponding to the first static contact piece foot abdicating groove (16 a) to form a first static contact piece connecting foot (412); the second static contact piece (5) is arranged on the left side of the first static contact piece (41) in parallel with the first static contact piece (41), a second static contact (51) is arranged on the downward side of the front end of the second static contact piece (5), and the rear end of the second static contact piece (5) extends out of the rear side face of the base (1) at a position corresponding to the second static contact piece foot abdicating groove (16 b) to form a second static contact piece connecting foot (52); the moving contact mechanism (6) is arranged on the base (1) at a position corresponding to the armature abdicating hole (111) and simultaneously corresponds to the lower parts of the first static contact piece (41) and the second static contact piece (5) and is matched with the first static contact piece (41) and the second static contact piece (5) to act; a coil (7), this coil (7) is around establishing on coil skeleton (71), this coil skeleton (71) is located the bottom of base (1) and is formed with in the middle with the armature abdication hole (111) corresponds coil skeleton centre bore (711), the one end of coil (7) with first pin arm (31) electricity is connected, characterized by: still include fuse (8), base (1) has seted up the fuse in the position of left side rear end and has held chamber (18 a) to the fuse connection plate slot (18 b) to the bottom is run through to the upper surface of base (1) is seted up to the rear side that holds chamber (18 a) at the fuse, a fuse connection plate (81) insert establish in this fuse connection plate slot (18 b) and the bottom with the other end electricity of coil (7) is connected, fuse (8) set up in fuse holds chamber (18 a), the pin of fuse (8) one end with pair inserted sheet is participated in (23) the electricity and is connected, and the pin of the other end then with the upper end electricity of fuse connection plate (81) is connected.

2. The weight type current starter with the operation protection function according to claim 1, further comprising an NTC thermistor (9) and an NTC thermistor wire holder (10), wherein the NTC thermistor wire holder slot (19) is formed in the front end of the left side of the base (1), the NTC thermistor wire holder (10) has a wire holder insert (101) and a wire holder insert (102), the wire holder insert (102) is inserted into the NTC thermistor wire holder slot (19), the wire holder insert (101) is located in the front end of the left side of the base (1), and a lead end of the NTC thermistor (9) is electrically connected with the NTC thermistor wire holder (10).

3. The weight type current starter with the operation protection function according to claim 2, wherein the duplex tab first pin (21) is electrically connected to the other lead terminal of the NTC thermistor (9), the duplex tab second pin (22) is electrically connected to one terminal of a refrigeration compressor motor operating capacitor (C1), the other terminal of the refrigeration compressor motor operating capacitor (C1) is electrically connected to the first static contact connecting pin (412), the NTC thermistor terminal block (10) is electrically connected to one terminal of a refrigeration compressor motor starting capacitor (C2), and the other terminal of the refrigeration compressor motor starting capacitor (C2) is electrically connected to the second static contact connecting pin (52).

4. The weight type current starter with the operation protection function according to claim 2, wherein the duplex blade first pin (21) is electrically connected to one end of a refrigerant compressor motor starting capacitor (C2), the other end of the refrigerant compressor motor starting capacitor (C2) is electrically connected to an NTC thermistor terminal holder (10), the other lead terminal of the NTC thermistor (9) is electrically connected to the second static contact connecting pin (52), the duplex blade second pin (22) is electrically connected to one end of a refrigerant compressor motor operating capacitor (C1), and the other end of the refrigerant compressor motor operating capacitor (C1) is electrically connected to the first static contact connecting pin (412).

5. The weight type current starter with the operation protection function according to claim 1, wherein the first pin (21) of the dual tab is electrically connected to one end of a starting capacitor (C2) of a motor of the refrigeration compressor, and the other end of the starting capacitor (C2) of the motor of the refrigeration compressor is electrically connected to the second static contact connecting pin (52).

6. The hammer type current starter having an operation protection function according to claim 1, wherein the second stationary contact connecting pin (52) and the other end of the coil (7) are electrically connected in common with the other end of the fuse (8).

7. The hammer type current starter having an operation protection function according to claim 1, wherein the movable contact mechanism (6) includes a movable contact piece (61), a central rod (62), a spring (63), and an armature (64), the movable contact piece (61) is disposed in the base chamber (11), a first movable contact (611) is disposed at a side of the movable contact piece (61) facing upward and at a position corresponding to the first stationary contact (411), a second movable contact (612) is disposed at a position corresponding to the second stationary contact (51), an upper end of the central rod (62) is fixedly connected to a middle portion of the movable contact piece (61), a lower end of the central rod (62) is configured as a free end and extends into a bobbin center hole (711) of the bobbin (71), the armature (64) is configured on the central rod (62) and is disposed in the bobbin center hole (711), a spring chamber (641) is formed at an upper portion of the armature (64), the spring (63) is configured on the central rod (62), and the upper end is supported against the movable contact piece (61) on a bottom wall of the spring chamber (641).

8. The weight type current starter with the operation protection function according to claim 1, wherein the bobbin (71) is formed with a coil chamber (712) around an outer wall, and the coil (7) is wound in the coil chamber (712).

9. The weight type current starter having the operation protection function according to claim 1, wherein the bobbin (71) is integrally formed at the bottom of the base (1).