Wiring terminal with special protection structure for air conditioner compressor

Abstract

The invention relates to the field of air conditioners, and discloses an air conditioner compressor wiring terminal with a special protection structure, which comprises a sealing wire holder, the sealing wire holder is annularly provided with binding posts at equal intervals, the tops of the binding posts are fixedly connected with a connecting sheet, and the connecting sheet is clamped with the wiring terminal. The connecting terminal is fixedly connected with the edge position of the aluminum nitride plate, the aluminum nitride plate is connected with the connecting device, and the overload pop-up device is arranged at the lower end of the aluminum nitride plate. Terminal temperature rise can be caused by infirm wiring, overload, power supply voltage fluctuation, insufficient cooling and the like, but in the prior art, equipment is powered off due to overload, the terminal cannot be protected, the terminal is difficult to clean after being heated and melted and is troublesome to replace, and meanwhile, wiring harnesses and the terminal are installed by manually connecting the terminal and the wiring harnesses firstly, so that the wiring harnesses and the terminal are not convenient to install. And the installation of the terminal and the sealing wire holder is troublesome.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioners, in particular to a connection terminal for an air conditioner compressor with a special protection structure. Background Art

[0002] Patent No. CN107681306A discloses an improved terminal block and an air conditioner compressor including the terminal block, comprising a metal shell, a conductive needle penetrating a mounting hole of the metal shell, and a glass seal body that combines the conductive needle with the metal shell package, wherein the conductive needle is provided with a surface treatment portion in the circumferential direction of the outer surface of the position corresponding to the position penetrating the mounting hole of the metal shell. The present invention treats the outer surface of the conductive needle at least at the position penetrating the mounting hole of the metal shell, so that a rough surface, a knurled surface or a wire groove with a circumferential angle of 0-85° with the conductive needle is formed in the circumferential direction, thereby artificially eliminating or cutting off the pull mark, and when the glass melts into a liquid state, the capillary action generated by the above structure infiltrates the gap between the conductive needle and the mounting hole of the metal shell and completely fills the concave part of the surface treatment portion, so that the air tightness of the entire terminal block is improved and it is not easy to leak. The current problem with air-conditioning compressor terminals is that they are easy to burn out. For example, loose wiring, overload, power supply voltage fluctuations, insufficient cooling, etc. will cause the terminals to heat up. The existing overload process is to cut off the power supply to the equipment, which cannot protect the terminals and cannot know the most intuitive terminal temperature, resulting in the terminals being burned and melted by heat, which is difficult to clean and replace. At the same time, the terminals are manually connected to the wiring harness and then to the sealed terminal block. The installation is more troublesome and there is still room for improvement. Therefore, an air-conditioning compressor terminal with a special protection structure is needed to solve the above problems. Summary of the invention

[0003] The problem to be solved by the present invention is that the air-conditioning compressor terminal is easy to burn out. For example, loose wiring, overload, power supply voltage fluctuation, insufficient cooling, etc. will cause the terminal to heat up. However, the existing equipment is powered off due to overload, and the terminals cannot be protected. As a result, the terminals are burned and melted, which is difficult to clean and replace. At the same time, the installation of the wiring harness and the terminal is manually performed by first connecting the terminal to the wiring harness and then connecting the terminal to the sealed terminal block, which is a technical problem that the installation is relatively troublesome.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a terminal block for an air-conditioning compressor with a special protection structure, comprising a sealed terminal block, the sealed terminal block is provided with terminal posts equidistantly arranged in a ring shape, the top of the terminal post is fixedly connected to a connecting piece, the connecting piece is clamped with the terminal block, the terminal block is fixedly connected to the edge of an aluminum nitride plate, the aluminum nitride plate is connected to a connecting device, and an overload pop-up device is provided at the lower end of the aluminum nitride plate.

[0005] Furthermore, the overload ejection device includes a first elastic member, a lifting sleeve is arranged inside the first elastic member, the bottom of the lifting sleeve is connected to the sealing terminal seat, and the top of the lifting sleeve is in contact with the triangular lifting block.

[0006] Furthermore, the triangular top block is connected to one end of the hot melt rod, the other end of the hot melt rod is slidably connected to the clamping hole opened in the connecting piece, and the hot melt rod is slidably connected to the arc-shaped sliding groove opened in the aluminum nitride plate.

[0007] Furthermore, anti-touch limit blocks are equidistantly arranged at the bottom of the aluminum nitride plate, the anti-touch limit blocks are in sliding contact with the triangular top blocks, and the anti-touch limit blocks are in contact with the top of the first elastic member.

[0008] Furthermore, the outer ring of the first elastic member is slidably connected to the reset ring, and the reset ring is in slidable contact with the triangular top block.

[0009] Furthermore, the connecting device includes a bolt, and the bolt is threadedly connected to a screw hole provided in the lifting sleeve.

[0010] Furthermore, right-angle grooves are symmetrically opened on the top of the bolt, the two right-angle grooves are connected, the right-angle grooves are slidably connected to the right-angle block, a second elastic member is arranged between the two right-angle blocks, and the horizontal opposite ends of the two right-angle blocks are slidably connected to the annular groove opened in the aluminum nitride plate.

[0011] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) By inserting a flat-blade screwdriver between two right-angle blocks, the two right-angle blocks are stretched open and slidably connected with the annular groove opened in the aluminum nitride plate, and then rotating the flat-blade screwdriver to cause the bolt to rotate and drive the aluminum nitride plate to move downward. At the same time, the top of the lifting sleeve will push the triangular top block to clamp the connection terminal, the wiring harness and the connecting piece with the hot melt rod, thereby completing the wiring. The hot melt rod directly contacts the connecting piece and the wiring harness so that it can be heated most directly. At the same time, the first elastic member is compressed while wiring, preparing for subsequent overload pop-up. When the flat-blade screwdriver is pulled out from between the two right-angle blocks, the right-angle block will be contracted by the second elastic member and will no longer be slidably connected with the annular groove, thereby allowing the aluminum nitride plate and the terminal to pop out under overload conditions. At the same time, the installation is relatively convenient and multiple wiring harnesses can be fixed at the same time.

[0012] (2) The hot melt rod is passed through the hole in the connecting piece through the lifting sleeve and the connecting device to fix the wiring harness. When the compressor terminal is overheated and is about to burn the terminal, the hot melt rod melts and no longer restricts the terminal and the aluminum nitride plate. Finally, under the action of the first elastic member, it quickly bounces out of the power supply and no longer heats up, thereby protecting the terminal. In the future, only the hot melt rod needs to be replaced to reduce losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the connecting piece in the present invention; Figure 3 Schematic diagram of the bottom structure of the aluminum nitride plate in the present invention; Figure 4 It is a structural schematic diagram of the screw hole and the clamping hole in the present invention; Figure 5 It is a structural schematic diagram of the connecting device in the present invention; Figure 6 It is a structural schematic diagram of the arc chute in the present invention; Figure 7 It is a schematic diagram of the bottom structure of the connection terminal and the aluminum nitride plate in the present invention; Figure 8 It is a schematic diagram of the structure of the hot melt rod and the triangular top block in the present invention.

[0014] In the figure: 1-sealed terminal block, 2-terminal, 3-connecting piece, 31-card hole, 4-terminal, 5-overload pop-up device, 51-first elastic member, 52-lifting sleeve, 521-screw hole, 53-hot melt rod, 531-triangular top block, 6-aluminum nitride plate, 61-arc slide groove, 62-annular groove, 63-anti-touch limit block, 7-connecting device, 71-bolt, 72-right angle block, 73-second elastic member, 8-reset ring. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0016] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] like Figures 1 to 8 As shown, the present invention provides a terminal block for an air-conditioning compressor with a special protection structure, comprising a sealed terminal block 1, the sealed terminal block 1 is arranged with terminal posts 2 in a ring-shaped and equidistant manner, the top of the terminal post 2 is fixedly connected to the connecting piece 3, the connecting piece 3 is clamped with the terminal block 4, the terminal block 4 is fixedly connected to the edge position of the aluminum nitride plate 6, the aluminum nitride plate 6 is connected to the connecting device 7, and an overload pop-up device 5 is arranged at the lower end of the aluminum nitride plate 6. The wiring harness is manually inserted into the terminal block 4, and then the terminal block 4 is connected to the connecting piece 3. Finally, multiple wiring harnesses can be fixed through the cooperation of the overload pop-up device 5, so that the efficiency of installing the wiring harness is more efficient.

[0018] The overload pop-up device 5 includes a first elastic member 51, which can be a spring. A lifting sleeve 52 is arranged inside the first elastic member 51. The bottom of the lifting sleeve 52 is connected to the sealed terminal block 1, and the top of the lifting sleeve 52 contacts the triangular top block 531. The triangular top block 531 is connected to one end of a hot melt rod 53, and the other end of the hot melt rod 53 is slidably connected to a clamping hole 31 provided in the connecting piece 3. The hot melt rod 53 is slidably connected to an arc-shaped slide groove 61 provided in the aluminum nitride plate 6. The hot melt rod 53 is passed through the clamping hole 31 provided in the connecting piece 3 through the lifting sleeve 52 and the connecting device 7 to fix the wiring harness. When the compressor overheats and the terminal 4 is about to burn the terminal 4, the melting of the hot melt rod 53 can directly no longer restrict the terminal 4 and the aluminum nitride plate 6. Finally, under the action of the first elastic member 51, it quickly pops up to break away from the power-off, and the temperature no longer continues to rise, thereby protecting the terminal 4.

[0019] Anti-touch limit blocks 63 are equidistantly arranged at the bottom of the aluminum nitride plate 6. The anti-touch limit blocks 63 are in sliding contact with the triangular top block 531. The anti-touch limit blocks 63 are in contact with the top of the first elastic member 51. The anti-touch limit blocks 531 can prevent the triangular top block 531 from sliding without rotating, and can also prevent the first elastic member 51 from causing the triangular top block 531 to be blocked from sliding.

[0020] The outer ring of the first elastic member 51 is slidably connected to the reset ring 8, and the reset ring 8 is in slidable contact with the triangular top block 531. When the hot melt rod 53 is not blown and needs to be removed for maintenance, it is opened through the connecting device 7, and then the reset ring 8 rises to contact the triangular top block 531, so that the triangular top block 531 and the hot melt rod 53 can be retracted and no longer jam the wiring harness.

[0021] The connecting device 7 includes a bolt 71, a right-angle groove is symmetrically provided on the top of the bolt 71, the two right-angle grooves are connected, the right-angle groove is slidably connected to the right-angle block 72, a second elastic member 73 is arranged between the two right-angle blocks 72, and the second elastic member 73 can be a spring, the horizontal opposite ends of the two right-angle blocks 72 are slidably connected to the annular groove 62 provided on the aluminum nitride plate 6, the bolt 71 is threadedly connected to the screw hole 521 provided on the top sleeve 52, and a flat screwdriver is inserted between the two right-angle blocks 72, so that the two right-angle blocks 72 are stretched open and connected to the aluminum nitride plate 6. The annular groove 62 is slidably connected, and then the flat-blade screwdriver is rotated to cause the bolt 71 to rotate and drive the aluminum nitride plate 6 to move downward. At the same time, the top of the lifting sleeve 52 will push the triangular top block 531 and the hot melt rod 53 to clamp the terminal 4, the wiring harness and the connecting piece 3, and complete the compression of the first elastic member 51 to prepare for the subsequent overload pop-up. When the flat-blade screwdriver is pulled out between the two right-angle blocks 72, the right-angle block 72 will be contracted by the second elastic member 73 and will no longer be slidably connected to the annular groove 62, thereby allowing the aluminum nitride plate 6 and the terminal 4 to pop out.

[0022] The working principle and use process of the present invention are as follows: by inserting a flat-blade screwdriver between the two right-angle blocks 72, the two right-angle blocks 72 are stretched open and slidably connected with the annular groove 62 opened in the aluminum nitride plate 6, and then rotating the flat-blade screwdriver to rotate the bolt 71 and drive the aluminum nitride plate 6 to move downward, and at the same time, the top of the lifting sleeve 52 will push the triangular top block 531 and the hot melt rod 53 to clamp the terminal 4, the wiring harness and the connecting piece 3, thereby completing the wiring and completing the compression of the first elastic member 51 to prepare for the subsequent overload pop-up. When the flat-blade screwdriver is pulled out from between the two right-angle blocks 72, the right-angle block 72 will be contracted by the second elastic member 73 and will no longer be slidably connected with the annular groove 62, thereby allowing the aluminum nitride plate 6 and the terminal 4 to pop out under overload conditions.

[0023] The hot melt rod 53 is passed through the clamping hole 31 opened in the connecting plate 3 by the lifting sleeve 52 and the connecting device 7 to fix the wiring harness. When the compressor terminal 4 is overheated and is about to burn the terminal 4, the melting of the hot melt rod 53 can no longer restrict the terminal 4 and the aluminum nitride plate 6. Finally, under the action of the first elastic member 51, it quickly bounces up and disconnects from the power supply, and the temperature no longer continues to rise, thereby protecting the terminal 4. Later, only the hot melt rod 53 needs to be replaced to reduce the loss.

[0024] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A terminal block for an air-conditioning compressor having a special protection structure, characterized in that: The invention comprises a sealed wiring seat (1), wherein the sealed wiring seat (1) is provided with wiring posts (2) arranged at equal intervals in a ring shape, the top of the wiring posts (2) is fixedly connected to a connecting piece (3), the connecting piece (3) is clamped to a wiring terminal (4), the wiring terminal (4) is fixedly connected to the edge of an aluminum nitride plate (6), the aluminum nitride plate (6) is connected to a connecting device (7), and an overload ejection device (5) is provided at the lower end of the aluminum nitride plate (6).

2. The connection terminal for an air-conditioning compressor with a special protection structure according to claim 1, characterized in that: The overload ejection device (5) comprises a first elastic member (51), a lifting sleeve (52) is arranged inside the first elastic member (51), the bottom of the lifting sleeve (52) is connected to the sealed wiring seat (1), and the top of the lifting sleeve (52) is in contact with the triangular lifting block (531).

3. The connection terminal for an air-conditioning compressor with a special protection structure according to claim 2, characterized in that: The triangular top block (531) is connected to one end of the hot melt rod (53), the other end of the hot melt rod (53) is slidably connected to the clamping hole (31) provided in the connecting piece (3), and the hot melt rod (53) is slidably connected to the arc-shaped sliding groove (61) provided in the aluminum nitride plate (6).

4. The connection terminal for an air-conditioning compressor with a special protection structure according to claim 3, characterized in that: Anti-touch limit blocks (63) are equidistantly arranged at the bottom of the aluminum nitride plate (6), the anti-touch limit blocks (63) are in sliding contact with the triangular top block (531), and the anti-touch limit blocks (63) are in contact with the top of the first elastic member (51).

5. The connection terminal for an air-conditioning compressor with a special protection structure according to claim 4, characterized in that: The outer ring of the first elastic member (51) is slidably connected to the reset ring (8), and the reset ring (8) is in slidably contact with the triangular top block (531).

6. The connection terminal for an air-conditioning compressor with a special protection structure according to claim 1, characterized in that: The connecting device (7) comprises a bolt (71), and the bolt (71) is threadedly connected to a screw hole (521) provided in the lifting sleeve (52).

7. The connection terminal for an air-conditioning compressor with a special protection structure according to claim 6, characterized in that: The top of the bolt (71) is symmetrically provided with right-angle grooves, the two right-angle grooves are connected, the right-angle grooves are slidably connected to the right-angle block (72), a second elastic member (73) is arranged between the two right-angle blocks (72), and the horizontal opposite ends of the two right-angle blocks (72) are slidably connected to the annular groove (62) provided on the aluminum nitride plate (6).

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