Sealing wiring terminal and production process thereof

Abstract

The invention provides a sealing wiring terminal and a production process thereof, the sealing wiring terminal comprises a wiring terminal end cap, a plurality of wiring terminal pins and a plurality of sealing glass beads, the sealing glass beads sleeve the surfaces of the wiring terminal pins, and the top surface of the wiring terminal end cap is provided with a plurality of mounting holes. The wiring terminal pin is connected to the side surface of the sealing glass bead through the mounting hole; one end, far away from the wiring terminal end cap, of each of the plurality of wiring terminal pins is provided with a pin connecting unit, and the pin connecting units are used for connecting the wiring terminal pins with other electrical equipment. The pin of the wiring terminal can be connected with electrical equipment such as a wire and a circuit board through the pin connection unit, the connection mode is simple, operation is convenient and fast, the connection efficiency of the wiring terminal can be improved, the wiring terminal is stably connected with the electrical equipment such as the wire and the circuit board and is not prone to loosening, and connection and use of the wiring terminal are facilitated.

Description

Technical Field

[0001] The present invention relates to the field of wiring terminals, and in particular to a sealed wiring terminal and a production process thereof. Background Art

[0002] Terminal blocks are accessories used to achieve electrical connections. Industrially classified as connectors, they play a key role in electrical connection systems. With the increasing degree of industrial automation and increasingly stringent and precise industrial control requirements, the use of terminal blocks has gradually increased. With the development of the electronics industry, the scope of use of terminal blocks has expanded, and their types have also increased. The functions of terminal blocks are electrical connection, electrical isolation, mechanical fixation, etc. Terminal blocks can be adapted to different application scenarios. In industrial automation equipment, terminal blocks are used to connect sensors, actuators, controllers, and other equipment; in power systems, terminal blocks are used to connect cables, transformers, switchgear, etc.; in communications equipment, terminal blocks are used to connect signal lines, power lines, etc.

[0003] Refrigerator compressor terminals play a key role in electrical connections. Refrigerator compressor terminals are typically soldered and then mounted on the housing. Depending on the number of poles, the leads can be single, two, three, or four. The sealed terminal consists of a cover, a terminal post, and a glass cover. The terminal post is an electrical component that connects the motor installed in the compressor to the power supply. In the Chinese utility model patent "Announcement No. CN204232444U, Name: Terminal," the connection structure fully ensures the connection reliability of the terminal and related components. This reliability is achieved through the dual guarantees of threaded connection and elastic crimping. However, in the aforementioned application and the prior art, the pin posts are cylindrical, making it extremely inconvenient to connect electrical equipment such as connecting wires to the pin posts. Additional operations are required to ensure the stability of the connection between the pin post and the electrical equipment. The complex operation steps affect the connection efficiency of the terminal connection and can easily lead to low connection stability between the two. This can easily loosen the connection between the terminal and the electrical equipment, affecting the connection and use of the terminal. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art wiring terminals that are inconvenient to connect and have low connection stability, and to provide a sealed wiring terminal and a production process thereof.

[0005] The present invention solves the above technical problems through the following technical solutions: The present invention provides a sealed terminal, comprising a terminal end cap, a plurality of terminal pins, and a plurality of sealing glass beads, wherein the sealing glass beads are sleeved on the surface of the terminal pins, a plurality of mounting holes are formed on the top surface of the terminal end cap, and the terminal pins are connected to the side surfaces of the sealing glass beads through the mounting holes; A pin connection unit is provided at one end of each of the plurality of terminal pins away from the terminal end cap, and the pin connection unit is used to connect the terminal pins to other electrical equipment.

[0006] In this technical solution, a pin connection unit is used to enable the terminal pins to be connected to electrical equipment such as wires and circuit boards. The connection method is simple and the operation is convenient, which can improve the connection efficiency of the terminal. The connection between the terminal and electrical equipment such as wires and circuit boards is stable and not easy to loosen, which facilitates the connection and use of the terminal.

[0007] Preferably, the pin connection unit includes a side connection component, the side connection component includes a first connection plate and a second connection plate, the first connection plate and the second connection plate are symmetrically connected to the surface of the terminal pin, the first connection plate and the second connection plate are connected to the opposite side thereof with a plurality of latching protrusions, the surface of the terminal pin is provided with a plurality of latching grooves, and the latching protrusions are arranged in the latching grooves; The top of the terminal pin contacts the bottom end of the support column, and the top end of the support column is connected to the inner sides of the first connecting plate and the second connecting plate respectively.

[0008] In this technical solution, the terminal pins can be connected to electrical equipment such as wires and circuit boards through the side connection components.

[0009] Preferably, the pin connection unit further comprises an embracing connection component, the embracing connection component comprises a lower surrounding plate, and the lower surrounding plate is connected to the surface of the terminal pin; The top of the lower enclosing plate is connected to a vertical connecting plate, the top of the vertical connecting plate is connected to an upper mounting plate, and both sides of the upper mounting plate are connected to a plurality of embracing support plates.

[0010] In this technical solution, the terminal pins can be connected to electrical equipment such as wires and circuit boards through the engaging connection assembly.

[0011] Preferably, the pin connection unit further includes an inner connection component, the inner connection component includes a middle limit plate, a center groove is formed at the top of the terminal pin, the middle limit plate is arranged in the center groove, and the side surface of the middle limit plate is connected to the terminal pin; The top of the middle limiting plate is connected with a hole-shaped connecting plate; The middle limit plate and the terminal pins are both provided with a plurality of locking holes, and the middle limit plate and the terminal pins are connected with a mounting bolt group through the locking holes.

[0012] In this technical solution, the terminal pins can be connected to electrical equipment such as wires and circuit boards through the internal connection components.

[0013] Preferably, the pin connection unit further comprises an external connection component, the external connection component comprises a threaded outer cylinder, the upper end surface of the terminal pin is provided with an external thread, the inner wall of the threaded outer cylinder is provided with an internal thread, and the threaded outer cylinder is threadedly connected to the surface of the terminal pin; The top of the threaded outer cylinder is connected to a middle connecting plate; The inner wall of the top surface of the threaded outer cylinder is connected with a contact column, and the top of the terminal pin is provided with an insertion groove. The contact column is arranged in the insertion groove, and the surface of the contact column contacts the terminal pin.

[0014] In this technical solution, the terminal pins can be connected to electrical equipment such as wires and circuit boards through external connection components.

[0015] Preferably, the bottom end of the supporting tube is threadedly connected with a ceramic plug.

[0016] In this technical solution, the ceramic plug is used not only to seal the sealing glass beads in a molten state, but also to improve the insulation performance.

[0017] Preferably, an insulating protective cover is provided on the outside and above the anti-overflow ring, the top of the edge of the insulating protective cover is covered with an insulating pad, and the insulating protective cover and the insulating pad are both bonded to the top surface of the terminal end cap.

[0018] In this technical solution, the insulating protective cover and the insulating pad are used to increase the sealing line and insulation performance of the terminal.

[0019] Preferably, an installation unit is connected to the outer side of the terminal end cap, and the installation unit includes a support ring, a sealing and fixing component and an adjusting component. The support ring is connected to the outer side of the terminal end cap, the sealing and fixing component is installed on the support ring, and the adjusting component is in transmission connection with the sealing and fixing component. The sealing and fixing assembly includes a mounting ring, which is arranged below the terminal end cap, a sealing ring gasket connected to the bottom of the mounting ring, and a plurality of connecting columns connected to the top of the mounting ring. The surfaces of the connecting columns are slidably connected to the support ring, and the tops of the connecting columns are connected to the bottom of the movable plate; The top of the support ring is rotatably connected to a plurality of threaded shafts distributed in a ring array, and the surfaces of the threaded shafts are threadedly connected to the movable plate; The top of the support ring is connected to a plurality of anti-track derailment posts distributed in a ring array, and the surfaces of the anti-track derailment posts are slidably connected to the movable plate.

[0020] In this technical solution, the sealing fixing assembly is used to increase the firmness and sealing of the connection between the wiring terminal and the refrigerator refrigeration compressor.

[0021] Preferably, the regulating assembly includes a rotating gear, the top ends of the plurality of threaded shafts are connected to the rotating gear, the side surfaces of the plurality of rotating gears are meshed and connected with the side surfaces of the control gear ring, and the inner side of the control gear ring is connected with the outer side of the rotating collar; The inner side of the rotating collar is connected to the outer side of the fixed track, the inner side of the fixed track is connected to the outer side of the fixed side plate, and the bottom of the fixed side plate is connected to the top of the support ring; The top of the rotating collar is connected to a plurality of force-applying shafts distributed in a ring array.

[0022] In this technical solution, the regulating assembly can be used to synchronously control the rotation of multiple threaded shafts, and the operation of the sealing and fixing assembly can be controlled.

[0023] Preferably, the production process includes the following steps: S1. Parts preparation: prepare the corresponding manufacturing materials and use the corresponding production equipment to produce the various parts of the terminal block; S2. Assemble the parts: Assemble the terminal end caps, terminal pins and sealing glass beads on the tooling, then place the terminal end caps, terminal pins and sealing glass beads together with the tooling into a sintering furnace for sintering, and finally assemble the other parts; S3, surface treatment, performing chemical plating on the parts assembled in step S2 to remove surface oxides, and then performing silicone oil surface treatment to form a thin film on the surface to obtain a terminal; S4, performance test, testing the wiring terminals obtained in step S3, eliminating defective ones, and obtaining good wiring terminals.

[0024] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0025] The positive progress effect of the present invention is: The present invention utilizes a pin connection unit so that the terminal pins can be connected to electrical equipment such as wires and circuit boards, and the connection method is simple and easy to operate, which can improve the connection efficiency of the terminal. The connection between the terminal and electrical equipment such as wires and circuit boards is stable and not easy to loosen, which facilitates the connection and use of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1Schematic diagram of the structure of the sealed terminal block according to an embodiment of the present invention.

[0027] Figure 2 for Figure 1 The diagram shows a cross-sectional structure of a sealed terminal block including a terminal end cap, a terminal pin, a sealing glass bead, a conductive plate and a fixing point.

[0028] Figure 3 for Figure 1 The diagram shows a three-dimensional structure of a sealed terminal block including a terminal end cap, a terminal pin, a sealing glass bead, a conductive plate, a fixing point and a side connection component.

[0029] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the terminal end cap, terminal pin, sealing glass bead, conductive plate, fixing point and side connection component of the sealed terminal shown.

[0030] Figure 5 for Figure 3 The diagram shows the exploded structure of the side connection component of the sealed terminal block.

[0031] Figure 6 for Figure 1 The diagram shows a three-dimensional structure of the terminal pins and the engaging connection components of the sealed terminal.

[0032] Figure 7 for Figure 6 The diagram shows a cross-sectional structure of the terminal pins and the engaging connection components of the sealed terminal.

[0033] Figure 8 for Figure 1 The diagram shows a three-dimensional structure of the terminal pins and internal connection components of the sealed terminal.

[0034] Figure 9 for Figure 8 The diagram shown is a front view cross-sectional structural diagram of the terminal pins and internal connection components of the sealed terminal.

[0035] Figure 10 for Figure 8 The diagram shown is a side cross-sectional structural diagram of the terminal pins and internal connection components of the sealed terminal.

[0036] Figure 11 for Figure 1 The diagram shows a three-dimensional structure of the terminal pins and external connection components of the sealed terminal.

[0037] Figure 12 for Figure 11 The diagram shows the cross-sectional structure of the terminal pins and external connection components of the sealed terminal.

[0038] Figure 13 for Figure 1 The diagram shows the overall process flow of the sealed terminal block and its production process.

[0039] Figure 14 for Figure 1 The three-dimensional structure diagram of the terminal end cap, terminal pin, ceramic plug, insulation protective cover, insulation pad and installation unit of the sealed terminal shown Figure 1 .

[0040] Figure 15 for Figure 14 The three-dimensional structure diagram of the terminal end cap, terminal pin, ceramic plug, insulation protective cover, insulation pad and installation unit of the sealed terminal shown Figure 2 .

[0041] Figure 16 for Figure 14 The diagram shows a cross-sectional structure of a terminal end cap, terminal pin, ceramic plug, insulating protective cover, insulating pad and mounting unit of a sealed terminal.

[0042] Figure 17 for Figure 14 The figure shows a schematic diagram of the three-dimensional structure of the installation unit of the sealed terminal block.

[0043] Figure 18 for Figure 17 The schematic diagram of the cross-sectional structure of the installation unit of the sealed terminal block is shown.

[0044] Figure 19 for Figure 18 The enlarged structural diagram of the sealed terminal block at point A is shown.

[0045] Description of Reference Numerals 1. Terminal caps; 2. Terminal pins; 3. Sealing glass beads; 4. Carrying tube; 5. Anti-overflow ring; 6. Side connecting assembly; 61. First connecting plate; 62. Second connecting plate; 63. Positioning protrusion; 64. Positioning groove; 65. Support column; 7. Embrace connection assembly; 71. Lower enclosure plate; 72. Vertical connection plate; 73. Upper mounting plate; 74. Embrace support plate; 75. Fixing protrusion; 8. Internal connection assembly; 81. Middle limit plate; 82. Hole-shaped connection plate; 83. Mounting bolt group; 84. Support side plate; 9. External connection assembly; 91. Threaded outer cylinder; 92. Middle connection plate; 93. Contact column; 94. Middle connection hole; 95. Contact groove; 10. Ceramic plug; 11. Insulation protective cover; 12. Insulation pad; 13. Support ring; 14. Sealing and fixing assembly; 141. Mounting ring; 142. Sealing ring gasket; 143. Connecting column; 144. Moving plate; 145. Threaded shaft; 146. Anti-slip rail column; 15. Control assembly; 151. Rotating gear; 152. Control gear ring; 153. Rotating collar; 154. Fixed track; 155. Fixed side plate; 156. Force shaft. DETAILED DESCRIPTION

[0046] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0047] Figures 1 to 13 Shown is a structural schematic diagram of an embodiment of the sealed wiring terminal and its production process of the present invention.

[0048] Example 1: Figures 1 to 2 As shown, the sealed terminal includes a terminal end cap 1, a plurality of terminal pins 2 and a plurality of sealing glass beads 3. The sealing glass beads 3 are sleeved on the surface of the terminal pins 2. The top surface of the terminal end cap 1 is provided with a plurality of mounting holes. The terminal pins 2 are connected to the side surfaces of the sealing glass beads 3 through the mounting holes. During production, the sealing glass beads 3 can fill the gap between the terminal end caps 1 and the terminal end caps 1, thereby maintaining the sealing of the terminal.

[0049] A pin connection unit is provided at one end of each of the plurality of terminal pins 2 away from the terminal end cap 1 , and the pin connection unit is used to connect the terminal pins 2 to other electrical equipment.

[0050] In this technical solution, a pin connection unit is used to enable the terminal pin 2 to be connected to electrical equipment such as wires and circuit boards. The connection method is simple and the operation is convenient, which can improve the connection efficiency of the terminal. The connection between the terminal and electrical equipment such as wires and circuit boards is stable and not easy to loosen, which facilitates the connection and use of the terminal.

[0051] The inner wall of the top surface of the terminal cap 1 is connected to a plurality of supporting tubes 4, the top of the terminal cap 1 is connected to a plurality of anti-overflow rings 5, the sealing glass beads 3 are arranged inside the supporting tube 4, and the bottom surface of the supporting tube 4 is provided with a connecting hole; The central axes of the supporting tube 4 , the anti-overflow ring 5 , the sealing glass beads 3 and the mounting holes provided on the top surface of the terminal end cap 1 are all on the same vertical line.

[0052] During installation, the terminal pin 2 is inserted into the inner side of the sealing glass bead 3, and then the sealing glass bead 3 is placed in the supporting tube 4. At this time, a heating device such as a sintering furnace is used to melt the sealing glass bead 3. At this time, the sealing glass bead 3 can fill the gap between the supporting tube 4 and the terminal pin 2, thereby completing the installation of the terminal pin 2 and the sealing glass bead 3; At this time, the supporting tube 4 can control the shape of the sealing glass beads 3, and the anti-overflow ring 5 can control the melting and flow range of the sealing glass beads 3.

[0053] Example 2: As an example of this application, Figures 3 to 5 As shown, the difference between it and other embodiments is that the pin connection unit includes a side connection component 6, and the side connection component 6 includes a first connection plate 61 and a second connection plate 62. The first connection plate 61 and the second connection plate 62 are symmetrically connected to the surface of the terminal pin 2. The first connection plate 61 and the second connection plate 62 are connected to the opposite sides of each other with a plurality of locking protrusions 63. The surface of the terminal pin 2 is provided with a plurality of locking grooves 64, and the locking protrusions 63 are arranged in the locking grooves 64. The top of the terminal pin 2 contacts the bottom of the support column 65 , and the top of the support column 65 is connected to the inner sides of the first connecting plate 61 and the second connecting plate 62 respectively.

[0054] Pre-set grooves are formed on opposite sides of the first connecting plate 61 and the second connecting plate 62 .

[0055] In this technical solution, the terminal pins 2 can be connected to electrical equipment such as wires and circuit boards through the side connection component 6.

[0056] When in use, the locking protrusion 63 can be locked in the locking groove 64, thereby increasing the drag resistance of the first connecting plate 61 and the second connecting plate 62 and increasing the stability of the connection of the terminal pin 2; The support column 65 can increase the stability between the first connecting plate 61, the second connecting plate 62 and the terminal pin 2; During connection, electrical equipment such as wires and circuit boards are connected to the first connection plate 61 and the second connection plate 62 to complete the connection of the terminal blocks.

[0057] Example 3: As an example of this application, Figure 6 and Figure 7As shown, the difference between it and other embodiments is that the pin connection unit further includes an embracing connection component 7, and the embracing connection component 7 includes a lower surrounding plate 71, and the lower surrounding plate 71 is connected to the surface of the terminal pin 2; The top of the lower surrounding plate 71 is connected to a vertical connecting plate 72 , the top of the vertical connecting plate 72 is connected to an upper mounting plate 73 , and both sides of the upper mounting plate 73 are connected to a plurality of embracing support plates 74 .

[0058] A fixing protrusion 75 is connected to the inner side of the lower surrounding plate 71 , and a fixing groove is opened on the surface of the terminal pin 2 , and the fixing protrusion 75 is disposed in the fixing groove.

[0059] In this technical solution, the terminal pins 2 can be connected to electrical equipment such as wires and circuit boards through the engaging connection component 7.

[0060] When in use, the lower enclosing plate 71 is embraced on the surface of the terminal pin 2. At this time, the fixing protrusion 75 is engaged in the fixing groove opened in the terminal pin 2 to increase the stability of the connection between the lower enclosing plate 71 and the terminal pin 2. Then the holding support plate 74 is wrapped around the surface of other devices such as the wire to complete the connection of the terminal.

[0061] Example 4: As an example of this application, Figures 8 to 10 As shown, the difference between it and other embodiments is that the pin connection unit further includes an inner connection component 8, the inner connection component 8 includes a middle limit plate 81, the top of the terminal pin 2 is provided with a center groove, the middle limit plate 81 is arranged in the center groove, and the side of the middle limit plate 81 is connected to the terminal pin 2; The top of the middle limiting plate 81 is connected to a hole-shaped connecting plate 82; The middle limit plate 81 and the terminal pins 2 are both provided with a plurality of locking holes, and the middle limit plate 81 and the terminal pins 2 are connected by a mounting bolt group 83 through the locking holes.

[0062] The top of the middle limit plate 81 is connected to two symmetrically distributed support side plates 84, and one side of the two support side plates 84 is respectively connected to the two sides of the hole-shaped connecting plate 82; The supporting side plate 84 is a triangular structure. The provision of the supporting side plates 84 can increase the stability of the connection between the middle limiting plate 81 and the hole-shaped connecting plate 82 , and reduce the probability of the hole-shaped connecting plate 82 being broken.

[0063] In this technical solution, the terminal pins 2 can be connected to electrical equipment such as wires and circuit boards through the internal connection component 8.

[0064] When in use, the middle limit plate 81 and the terminal pin 2 are connected by the mounting bolt group 83, so that the connection between the middle limit plate 81 and the terminal pin 2 is more stable, while retaining the function of detachability and having extremely high drag resistance; Then, other electrical equipment such as wires are connected to the hole-shaped connecting plate 82 to complete the connection of the terminal blocks.

[0065] When in use, the supporting side plates 84 on both sides can increase the stability of the connection between the hole-shaped connecting plate 82 and the middle limiting plate 81, thereby preventing the hole-shaped connecting plate 82 from being broken by external forces, thereby increasing the stability of the terminal connection.

[0066] Example 5: As an example of this application, Figure 11 and Figure 12 As shown, the difference between it and other embodiments is that the pin connection unit further includes an external connection component 9, the external connection component 9 includes a threaded outer cylinder 91, the upper end surface of the terminal pin 2 is provided with an external thread, the inner wall of the threaded outer cylinder 91 is provided with an internal thread, and the threaded outer cylinder 91 is threadedly connected to the surface of the terminal pin 2; The top of the threaded outer cylinder 91 is connected to a middle connecting plate 92; A contact post 93 is connected to the inner wall of the top surface of the threaded outer cylinder 91 . A slot is provided on the top of the terminal pin 2 . The contact post 93 is arranged in the slot and contacts the terminal pin 2 on its surface.

[0067] A middle connection hole 94 is formed at the center of the middle connection plate 92 , and a plurality of contact grooves 95 are formed on both the left and right sides of the middle connection plate 92 .

[0068] The middle connection hole 94 and the contact groove 95 can be used to facilitate connection of wires of other electrical devices, thereby increasing the anti-dropout property of the wires of other electrical devices when being connected.

[0069] In this technical solution, the terminal pins 2 can be connected to electrical equipment such as wires and circuit boards through the external connection component 9.

[0070] When in use, the threaded outer cylinder 91 is rotated so that the threaded outer cylinder 91 can be installed on the surface of the terminal pin 2. At this time, the contact pin 93 is deeply inserted into the deep groove provided in the terminal pin 2. Then connect the middle connecting plate 92 to the electrical equipment such as the conductor to complete the connection of the terminal; At this time, the contact groove 95 and the middle connection hole 94 can be engaged with electrical equipment such as a wire, thereby increasing the tensile strength of the connection between the electrical equipment such as a wire and the middle connection plate 92 .

[0071] The threaded outer cylinder 91 can make it easier to disassemble the structure such as the middle connecting plate 92 , thereby increasing the flexibility of the threaded outer cylinder 91 and the middle connecting plate 92 when using the structure.

[0072] like Figure 13 As shown, the production process includes the following steps: S1. Parts preparation: prepare the corresponding manufacturing materials and use the corresponding production equipment to produce the various parts of the terminal block; S2. Assemble the parts: Assemble the terminal end cap 1, terminal pin 2, and sealing glass bead 3 on the tooling. Then, place the terminal end cap 1, terminal pin 2, and sealing glass bead 3 together with the tooling into a sintering furnace for sintering. Finally, assemble the other parts. S3, surface treatment, performing chemical plating on the parts assembled in step S2 to remove surface oxides, and then performing silicone oil surface treatment to form a thin film on the surface to obtain a terminal; S4, performance test, testing the wiring terminals obtained in step S3, eliminating defective ones, and obtaining good wiring terminals.

[0073] During production, in step S1, corresponding metals or other conductive materials that meet the use requirements are prepared, and corresponding parts are produced by sintering, stretching, stamping, die casting, etc.; The terminal cap 1 is formed by stretching and stamping a steel plate, and the terminal pin 2 is formed by wire with the help of a washboard die; The manufacturing process of the sealing glass beads 3 is as follows: first, glass powder is pre-pressed to form semi-finished glass beads, and then the semi-finished glass beads are pre-sintered to obtain the sealing glass beads 3.

[0074] In step S3, chemical plating is used to remove surface oxides to improve corrosion resistance and weldability. Silicone oil is used for surface treatment to form a thin film on the surface that does not affect conductivity and insulation, thereby improving hydrophobicity and protecting the sealing glass beads 3.

[0075] In step S4, the terminal block is tested for sealing performance using liquid; The liquid is alcohol, not water, which can prevent the terminals from rusting.

[0076] Example 6: As an example of the present application, Figures 14 to 16 As shown, the difference between it and other embodiments is that a ceramic plug 10 is threadedly connected to the bottom end of the supporting tube 4.

[0077] In this technical solution, the ceramic plug 10 can not only seal the sealing glass beads 3 in a molten state, but also improve the insulation performance.

[0078] An insulating protective cover 11 is provided outside and above the anti-overflow ring 5 , and the top edge of the insulating protective cover 11 is covered with an insulating pad 12 . The insulating protective cover 11 and the insulating pad 12 are both bonded to the top surface of the terminal end cap 1 .

[0079] In this technical solution, the insulating protective cover 11 and the insulating pad 12 are used to increase the sealing line and insulation performance of the terminal.

[0080] The upper end of the ceramic plug 10 is provided with an external thread, and the bottom end of the carrier tube 4 is provided with a threaded hole. The ceramic plug 10 is threadedly connected to the bottom end of the carrier tube 4 through the external thread and the threaded hole. When in use, the ceramic plug 10 can increase the insulation performance of the terminal.

[0081] During installation, first put multiple insulating protective covers 11 on the surface of the terminal pins 2, and glue the insulating protective covers 11 to the top of the terminal end cap 1, and then glue the insulating pads 12 to the top of the terminal end cap 1. At this time, the insulating pads 12 can be pressed on the top of the edge of the insulating protective covers 11, which can further fix the position of the insulating protective covers 11 and increase the stability of the installation of the insulating protective covers 11.

[0082] Example 7: As an example of the present application, Figures 17 to 19 As shown, the difference between this embodiment and other embodiments is that an installation unit is connected to the outside of the terminal end cap 1, and the installation unit includes a support ring 13, a sealing and fixing assembly 14, and an adjusting assembly 15. The support ring 13 is connected to the outside of the terminal end cap 1, and the sealing and fixing assembly 14 is installed on the support ring 13. The adjusting assembly 15 is in transmission connection with the sealing and fixing assembly 14; The sealing and fixing assembly 14 includes a mounting ring 141, which is arranged below the terminal end cap 1. A sealing ring gasket 142 is connected to the bottom of the mounting ring 141, and a plurality of connecting posts 143 are connected to the top of the mounting ring 141. The surfaces of the connecting posts 143 are slidably connected to the support ring 13, and the tops of the connecting posts 143 are connected to the bottom of the movable plate 144. An annular groove is formed on the bottom surface of the sealing ring gasket 142 . The presence of the annular groove ensures better sealing performance when the sealing ring gasket 142 is installed.

[0083] The top of the support ring 13 is rotatably connected to a plurality of threaded shafts 145 distributed in a ring array, and the surface of the threaded shafts 145 is threadedly connected to the movable plate 144; A plurality of anti-slip rail posts 146 distributed in a ring array are connected to the top of the support ring 13 , and the surfaces of the anti-slip rail posts 146 are slidably connected to the movable plate 144 .

[0084] The top end of the anti-slip rail post 146 is connected to an anti-slip plate to prevent the movable plate 144 from sliding out of the anti-slip rail post 146 .

[0085] In this technical solution, the sealing and fixing assembly 14 can be used to increase the firmness and sealing of the connection between the terminal block and the refrigerator refrigeration compressor.

[0086] The control assembly 15 includes a rotating gear 151. The top ends of the plurality of threaded shafts 145 are connected to the rotating gear 151. The sides of the plurality of rotating gears 151 are meshed with the side surfaces of the control gear ring 152. The inner side of the control gear ring 152 is connected to the outer side of the rotating collar 153. The inner side of the rotating collar 153 is connected to the outer side of the fixed track 154, the inner side of the fixed track 154 is connected to the outer side of the fixed side plate 155, and the bottom of the fixed side plate 155 is connected to the top of the support ring 13; The cross section of the fixed rail 154 is a T-shaped structure.

[0087] The top of the rotating ring 153 is connected to a plurality of force-applying shafts 156 distributed in a ring array.

[0088] In this technical solution, the regulating component 15 can be used to synchronously control the rotation of multiple threaded shafts 145, and the operation of the sealing and fixing component 14 can be controlled.

[0089] When in use, the force-applying shaft 156 can be used to rotate the rotating collar 153 so that the rotating collar 153 can rotate around the fixed track 154. When the rotating collar 153 rotates, the control gear ring 152 can be driven to rotate, thereby driving the multiple rotating gears 151 to rotate. When the rotating gear 151 rotates, it can drive the movable plate 144 to move downward along the anti-slip track column 146, thereby driving the connecting column 143 to move in the same direction, and then driving the mounting ring 141 and the sealing ring gasket 142 to move in the same direction, so that the sealing ring gasket 142 is close to the installation position of the refrigerator refrigeration compressor, thereby increasing the firmness and sealing of the terminal block during installation, and increasing the stability of the terminal block during installation.

[0090] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A sealed terminal block, characterized in that: The invention comprises a terminal end cap (1), a plurality of terminal pins (2) and a plurality of sealing glass beads (3), wherein the sealing glass beads (3) are sleeved on the surface of the terminal pins (2), a plurality of mounting holes are provided on the top surface of the terminal end cap (1), and the terminal pins (2) are connected to the side surfaces of the sealing glass beads (3) through the mounting holes; A pin connection unit is provided, wherein one end of each of the plurality of terminal pins (2) away from the terminal end cap (1) is provided with a pin connection unit, and the pin connection unit is used for connecting the terminal pins (2) to other electrical equipment.

2. The sealed terminal according to claim 1, wherein: The pin connection unit includes a side connection component (6), and the side connection component (6) includes a first connection plate (61) and a second connection plate (62), the first connection plate (61) and the second connection plate (62) are symmetrically connected to the surface of the terminal pin (2), and the first connection plate (61) and the second connection plate (62) are connected to the opposite side thereof with a plurality of latching protrusions (63), and the surface of the terminal pin (2) is provided with a plurality of latching grooves (64), and the latching protrusions (63) are arranged in the latching grooves (64); The top of the terminal pin (2) contacts the bottom of the support column (65), and the top of the support column (65) is connected to the inner side of the first connecting plate (61) and the second connecting plate (62) respectively.

3. The sealed terminal according to claim 1, wherein: The pin connection unit further comprises an embracing connection component (7), the embracing connection component (7) comprising a lower surrounding plate (71), and the lower surrounding plate (71) is connected to the surface of the terminal pin (2); The top of the lower enclosing plate (71) is connected to a vertical connecting plate (72), the top of the vertical connecting plate (72) is connected to an upper mounting plate (73), and both sides of the upper mounting plate (73) are connected to a plurality of embracing support plates (74).

4. The sealed terminal according to claim 1, wherein: The pin connection unit further comprises an inner connection component (8), the inner connection component (8) comprising a middle limit plate (81), a center groove is provided at the top of the terminal pin (2), the middle limit plate (81) is arranged in the center groove, and the side surface of the middle limit plate (81) is connected to the terminal pin (2); The top of the middle limit plate (81) is connected to a hole-shaped connecting plate (82); The middle limit plate (81) and the terminal pins (2) are both provided with a plurality of locking holes, and the middle limit plate (81) and the terminal pins (2) are connected via the locking holes with a mounting bolt group (83).

5. The sealed terminal according to claim 1, wherein: The pin connection unit further includes an external connection component (9), the external connection component (9) includes a threaded outer cylinder (91), the upper end surface of the terminal pin (2) is provided with an external thread, the inner wall of the threaded outer cylinder (91) is provided with an internal thread, and the threaded outer cylinder (91) is threadedly connected to the surface of the terminal pin (2); The top of the threaded outer cylinder (91) is connected to a middle connecting plate (92); The inner wall of the top surface of the threaded outer cylinder (91) is connected to a contact column (93), and the top of the terminal pin (2) is provided with an insertion groove, the contact column (93) is arranged in the insertion groove, and the surface of the contact column (93) contacts the terminal pin (2).

6. The sealed terminal according to claim 1, wherein: The inner wall of the top surface of the terminal end cap (1) is connected to a plurality of supporting tubes (4), the top of the terminal end cap (1) is connected to a plurality of anti-overflow rings (5), the sealing glass beads (3) are arranged on the inner side of the supporting tube (4), and the bottom surface of the supporting tube (4) is provided with a connecting hole; The central axes of the mounting holes provided on the top surfaces of the supporting tube (4), the anti-overflow ring (5), the sealing glass beads (3) and the terminal end cap (1) are located on the same vertical line.

7. The sealed terminal according to claim 6, wherein: The bottom end of the supporting tube (4) is threadedly connected to a ceramic plug (10); An insulating protective cover (11) is provided on the outside and above the overflow prevention ring (5), and the top edge of the insulating protective cover (11) is covered with an insulating pad (12). The insulating protective cover (11) and the insulating pad (12) are both bonded to the top surface of the terminal end cap (1).

8. The sealed terminal according to claim 1, wherein: The outer side of the terminal end cap (1) is connected to a mounting unit, the mounting unit comprising a support ring (13), a sealing fixing assembly (14) and a regulating assembly (15), the support ring (13) is connected to the outer side of the terminal end cap (1), the sealing fixing assembly (14) is mounted on the support ring (13), and the regulating assembly (15) is in transmission connection with the sealing fixing assembly (14); The sealing fixing assembly (14) includes a mounting ring (141), the mounting ring (141) is arranged below the terminal end cap (1), the bottom of the mounting ring (141) is connected to a sealing ring gasket (142), the top of the mounting ring (141) is connected to a plurality of connecting columns (143), the surface of the connecting column (143) is slidably connected to the support ring (13), and the top of the connecting column (143) is connected to the bottom of the movable plate (144); The top of the support ring (13) is rotatably connected to a plurality of threaded shafts (145) distributed in a ring array, and the surfaces of the threaded shafts (145) are threadedly connected to the movable plate (144); The top of the support ring (13) is connected to a plurality of anti-track columns (146) distributed in a ring array, and the surfaces of the anti-track columns (146) are slidably connected to the movable plate (144).

9. The sealed terminal according to claim 8, wherein: The regulating assembly (15) includes a rotating gear (151), the top ends of the plurality of threaded shafts (145) are connected to the rotating gear (151), the side surfaces of the plurality of rotating gears (151) are meshedly connected to the side surfaces of the control gear ring (152), and the inner side of the control gear ring (152) is connected to the outer side of the rotating collar (153); The inner side of the rotating collar (153) is connected to the outer side of the fixed track (154), the inner side of the fixed track (154) is connected to the outer side of the fixed side plate (155), and the bottom of the fixed side plate (155) is connected to the top of the support ring (13); The top of the rotating collar (153) is connected to a plurality of force-applying shafts (156) distributed in a ring array.

10. A process for producing a sealed terminal according to any one of claims 1 to 9, characterized in that: The production process includes the following steps: S1. Parts preparation: prepare the corresponding manufacturing materials and use the corresponding production equipment to produce the various parts of the terminal block; S2, assembling parts, assembling the terminal end cap (1), the terminal pin (2) and the sealing glass bead (3) on the tooling, then placing the terminal end cap (1), the terminal pin (2) and the sealing glass bead (3) together with the tooling into a sintering furnace for sintering, and finally assembling other parts; S3, surface treatment, performing chemical plating on the parts assembled in step S2 to remove surface oxides, and then performing silicone oil surface treatment to form a thin film on the surface to obtain a terminal; S4, performance test, testing the wiring terminals obtained in step S3, eliminating defective ones, and obtaining good wiring terminals.

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