An apparatus comprising a sealed connector and a glass sintering device

Abstract

The application discloses a glass sintering device for sealing connectors, the sealing connector comprising a base, a plurality of connecting sub-components arranged on the base, and a glass sealing body sealing the gap between the base and the connecting sub-components; the glass sintering device comprises a glass sintering furnace, a connector fixing seat for placing the furnace body and a heating sintering device arranged in the glass sintering furnace, the heating sintering device comprising positive and negative electrodes, a power control module and a power supply module, the positive and negative electrodes being arranged on the connector fixing seat and used for being connected with both ends of the base or the connecting sub-components, and the power control module being used for controlling the output current of the positive and negative electrodes to be loaded to the sealing connector; the base or the connecting sub-component is directly passed through with current to heat, the base or the connecting sub-component is a good conductor of electricity and heat, and the resistance of the base or the connecting sub-component is very small, so that the temperature can be increased to the glass heat melting temperature by using a small amount of electric energy, the temperature is increased quickly, and the required electric energy is less than that of an indirect heating mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass sintering, in particular to a glass sintering equipment for sealing connectors. BACKGROUND

[0002] The sealing connector comprises a base, a plurality of connecting sub-components arranged on the base, and a glass sealing body. The base and the connecting sub-components are both made of metal, and are sealed and insulated from each other by the glass sealing body. The melting point of the glass is lower than that of the base and the connecting sub-components. The glass sintering sealing connector is formed by melting the glass into a liquid state at high temperature, so that the glass infiltrates between the connecting sub-components and the base, and then solidifies after cooling to form a seal. The sealing connector made by this glass sintering scheme has the advantages of simple structure, good sealing, high temperature resistance, long service life, etc. This technology has been mature and widely used.

[0003] A special glass sintering furnace is used during sintering. The sintering furnace generally has multiple heating temperature zones, and the temperature of each temperature zone can be independently set. The glass undergoes a specific temperature-time curve of “heating-keeping warm-cooling” during the sintering process, which is an experience curve obtained through long-term exploration during production. Because the surface of the metal parts will rapidly oxidize at high temperature, the dense oxide layer will hinder the infiltration effect between the glass and the metal, and thus lead to poor sealing. Therefore, the entire sintering process must be carried out in a non-oxidizing gas environment. Nitrogen or inert gas is generally filled in the glass sintering furnace to control the oxygen content in the furnace at a low value.

[0004] The sintering temperature of the glass is generally 800-1100℃. A heating device is arranged inside the glass sintering furnace. The heating device first heats the gas in the furnace, and then heats the sintering mold and the parts to the set temperature through heat exchange of the gas. Therefore, the entire heating speed is very slow, and a huge amount of energy is consumed. In addition, the entire furnace cavity needs to be wrapped with a thick heat insulation layer to prevent the ambient temperature from affecting the temperature in the furnace. Moreover, during sintering, all the parts in the entire furnace cavity are heated to a very high temperature, so all the parts in the furnace must be made of high-temperature resistant materials. During the later cooling stage, due to the high temperature in the furnace, the heat capacity is large, and the heat insulation effect of the furnace body is very good. Therefore, the cooling process takes a very long time. If forced cooling is used to speed up the cooling, a large amount of energy will be consumed. Moreover, the special glass sintering furnace equipment generally has a large floor area, high energy consumption, long production cycle, and high price.

[0005] For example, the application number: CN201511007009.6, the name is: micro pitch glass sealing connector fusion sealing process, in the production, need first sintering glass body, then use 850℃~1150℃ temperature makes glass sealing connector once sintering, after slow cooling, again use 850℃~1150℃ temperature makes glass sealing connector secondary sintering.Forming tooling includes the bearing carrier that is provided with a plurality of installation slots, glass sealing connector is clamped in the installation slot, and a plurality of glass sealing connectors are heated simultaneously.

[0006] The core function of this glass sintering furnace is heating temperature control, all designs are to produce a safe and stable environment that can make the glass melt and infiltrate at the specified temperature. The heating method of the device, which first heats the gas and then indirectly heats the glass, determines that the device must use a larger power heater, a better temperature uniform device to make the furnace temperature, temperature insulation facilities, which consumes a lot of energy, and the time required for heating is long. However, if multiple connector products are placed in the furnace at the same time, they are in the same gas environment, and if the internal temperature of the gas environment is not uniform, the temperature of the glass in each connector product will be different, which may cause poor sealing of the connector product.

[0007] In addition, a glass material generally has only one optimal temperature-time curve to ensure the sealing effect after sintering, that is, the same furnace cavity can only sinter one kind of glass or glass with a temperature curve close to it within a time period. If multiple types of glass with large temperature differences are to be sintered at the same time, multiple devices must be used, which will increase the cost of equipment procurement. SUMMARY

[0008] In view of the above deficiencies of the prior art, the purpose of the present application is to provide a direct heating type glass sintering device for sealing connectors.

[0009] To solve the above technical problems, the present application adopts the following technical scheme:

[0010] A glass sintering device for sealing connectors, the sealing connector comprising a base body, a plurality of connection sub-components arranged on the base body, and a glass sealing body sealing the gap between the base body and the connection sub-components; the glass sintering device comprises a glass sintering furnace, the glass sintering furnace is provided with a connector fixing seat for placing the furnace body and a heating sintering device, the heating sintering device comprises positive and negative electrodes, a power control module and a power supply module, the positive and negative electrodes are arranged on the connector fixing seat and are used to connect the two ends of the base body or the connection sub-component, one end of the power control module is connected to the positive electrode, the other end of the power control module is connected to the positive electrode of the power supply module, and the negative electrode of the power supply module is connected to the negative electrode.

[0011] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0012] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0013] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0014] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0015] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0016] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0017] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0018] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0019] The glass sintering equipment of the sealed connector further comprises a temperature monitoring module, which is arranged on the connector fixing seat and electrically connected with the power control module.

[0020] Compared with the prior art, the glass sintering equipment of the sealed connector provided by the application has the advantages that the heating sintering device is arranged in the glass sintering furnace, the positive and negative electrodes of the heating sintering device are connected with the two ends of the base body or the connecting sub-piece, the power control module of the heating sintering device outputs voltage and current to the two ends of the base body or the connecting sub-piece, that is, the current is directly passed through the base body or the connecting sub-piece to make it heat, the base body or the connecting sub-piece is directly used as a heating body to heat the glass sealing body, the base body or the connecting sub-piece is a good conductor of electricity and heat, and thus has a small resistance, so that the temperature can be increased to the glass heat melting temperature without a large amount of electric energy, the heat utilization rate is greatly improved, the temperature is quickly increased, and the required electric energy is less than that of the indirect heating mode. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective view of the sealed connector according to the present application.

[0022] Figure 2 A cross-sectional view of the sealed connector according to the present application.

[0023] Figure 3 A schematic diagram of a heating mode of a first glass sintering apparatus according to the present application.

[0024] Figure 4 A schematic diagram of another heating mode of the first glass sintering apparatus according to the present application.

[0025] Figure 5 A schematic diagram of a heating mode of a second glass sintering apparatus according to the present application.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] Base body 11, connecting sub-element 12, glass sealing body 13, fixing seat 21, positive electrode 221, negative electrode 222, power control module 223, power supply module 224 DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0029] It should be noted that when a component is referred to as being "mounted on", "fixed on" or "disposed on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be a middle component.

[0030] It should also be noted that the terms "left", "right", "upper", "lower", and the like as used herein are only relative concepts or are used with reference to the normal use state of the product, and should not be considered as limiting.

[0031] Reference should be made to Figure 1 and Figure 2The glass sintering equipment provided by the application is used for sintering a sealed connector, which comprises a base 11, a plurality of connecting sub-pieces 12 and a glass sealing body 13, wherein the base 11 and the connecting sub-pieces 12 are made of metal materials with the same or different materials, and the glass sealing body 13 is used for sealing the gap between the base 11 and the connecting sub-pieces 12. The number of the connecting sub-pieces 12 can be 2-20, which can be set according to specific needs. Specifically, the connecting sub-pieces 12 are used for connecting a female piece, and the other end of the female piece is used for connecting an external wire (such as a wire of a vacuum equipment). The connecting sub-pieces 12 can be connected to the female piece, and finally the wire is electrically connected to the connecting sub-pieces 12 of the sealed connector. The sealed connector can be used for electrical connection between the vacuum equipment and the outside.

[0032] Please refer to Figure 3 and Figure 4 The glass sintering equipment provided by the application comprises a glass sintering furnace (not shown in the figure), wherein the glass sintering furnace is provided with a connector fixing seat 21 for placing a furnace body and a heating sintering device (not shown in the figure). A plurality of sealed connectors can be arranged in the fixing seat 21, so that a plurality of sealed connectors can be simultaneously sealed and sintered.

[0033] The heating sintering device comprises positive and negative electrodes 221, 222, a power control module 223 and a power supply module 224. The positive and negative electrodes 221, 222 are arranged on and extend into the connector fixing seat 21, and are used for connecting two ends of the base 11 or the connecting sub-piece 12. One end of the power control module 223 is connected to the positive electrode 221, and the other end of the power control module 223 is connected to the positive electrode of the power supply module 224. The negative electrode of the power supply module 224 is connected to the negative electrode 222. The power supply module 224 provides electric energy, and the power control module 223 adjusts the current size of the positive and negative electrodes 221, 222. The current is loaded to the two ends of the base 11 or the connecting sub-piece 12, so that the base 11 or the connecting sub-piece 12 generates heat.

[0034] The base 11 or the connecting sub-piece 12 is equivalent to a heating resistor, so that the power supply module 224, the power control module 223, the positive electrode 221, the sealed connector and the negative electrode 222 form a power-on loop. After the current is loaded to the two ends of the base 11 or the connecting sub-piece 12, the temperature of the base 11 or the connecting sub-piece 12 rapidly rises, so that the glass sealing body 13 between the base 11 and the connecting sub-piece 12 is heated to a hot melting state, thereby infiltrating the gap between the base 11, the connecting sub-piece 12 and the glass sealing body 13, and performing sealing.

[0035] Since the base body 11 or the connecting sub-piece 12 is a good conductor of electricity and heat itself, its resistance is small, so a large amount of electric energy is not needed to raise the temperature to the temperature of glass hot melting, thereby the present application greatly improves the heat utilization rate, and the temperature rises fast, and the required electric energy is less than the indirect heating mode. And there is no extra heater, temperature uniformizing device, heat insulating device, heat preserving device, etc. in the glass sintering furnace, the space utilization rate in the furnace can be improved, the structure of the glass sintering furnace is more compact, and since there is no heat insulating layer and heat preserving layer, the cooling time is also short, and the production cycle is greatly shortened.

[0036] The power supply module 224 can be one of alternating current and direct current, as long as it can heat the base body 11 or the connecting sub-piece 12 after being electrified. Preferably, the power supply module 224 can adopt a direct current power supply, and the output voltage is a direct current voltage less than 36V, which is safer to use and prevents electric shock accidents.

[0037] Further, the focus of the present application is the precise control of the heating temperature, so the temperature detection is particularly important, and the heating sintering device further comprises a temperature monitoring module (not shown in the figure), which is at least one contact type temperature sensor, which is arranged on the connector fixing seat and located at the glass sealing body.

[0038] In the embodiment, the contact type temperature sensor can adopt a thermistor or a thermocouple, which is fastened to the connector fixing seat 21 and in contact with the glass sealing body, and is electrically connected with the power control module 223, for collecting the temperature of the glass sealing body and precisely controlling the heating temperature. In the embodiment, the detection part of the temperature monitoring module is exposed outside the connector fixing seat 21, so that it can be in direct contact with the sealed connector, thereby accurately and real-timely detecting the temperature of the sealed connector, so that the power control module 223 can more reasonably control the output power. For example, when the temperature detected by the temperature monitoring module is lower than the set temperature value, the output current of the power control module 223 is increased. Preferably, the contact type temperature sensor can adopt multiple ones, so that the temperatures at different positions of the to-be-welded piece can be detected, thereby the temperature can be more precisely controlled.

[0039] Alternatively, the temperature monitoring module is at least one non-contact type temperature sensor, which can adopt an infrared temperature sensor or a radiation temperature sensor. Non-contact temperature measurement can measure the surface temperature of small objects and objects with small heat capacity or rapid temperature change (transient), and the upper limit of the measurement is not limited by the temperature resistance of the temperature sensing element.

[0040] In specific implementation, the contact type temperature sensor and the non-contact type temperature sensor can be used at the same time when the installation space of the connector fixing seat 21 allows, so that the temperature of the to-be-welded piece can be accurately obtained through multiple temperature feedback, thereby the electric energy regulator can better control the output power.

[0041] As shown in Figure 3 and Figure 4 In an optional embodiment, the connector fixing seat 21 is multiple, the heating sintering device is one, each connector fixing seat 21 is connected with the positive and negative electrodes 221, 222 in parallel or in series, and the embodiment can be used in the case that the resistance values of the sealed connectors are the same, so that only one heating sintering device can be used to realize the sintering of multiple sealed connectors, and the occupation space of the glass sintering equipment is small, so that the heat capacity in the furnace is small, and the cooling speed can be accelerated.

[0042] In another optional embodiment, as shown in Figure 5 The connector fixing seat 21 and the heating sintering device are multiple, and each connector fixing seat 21 is connected with a pair of positive and negative electrodes 222, and the embodiment can be used in the case that the resistance values of the sealed connectors are different, and the power of each heating sintering device is adjusted independently, compared with the above-mentioned common heating sintering device, the heating temperature of each sealed connector can be accurately controlled, so that the different sealed connectors are independent of each other and do not interfere with each other.

[0043] In an optional embodiment, a heat insulation layer (not numbered in the figure) is arranged between each connector fixing seat 21 to prevent multiple different glass sealing bodies 13 from heating at the same time and affecting the heat field between each other, for example, when the temperature difference between two connector fixing seats 21 is large, it may have an adverse effect on temperature measurement and power adjustment, and even cause uncontrollable, the present application uses an insulation layer arranged between adjacent two connector fixing seats 21 to insulate the heat field, or increases the distance between the heated bodies, so that the heat field between each other is reduced to the minimum, thereby facilitating accurate control of the temperature.

[0044] The power control module 223 sets a glass sintering temperature-time curve according to the glass sealing body 13, which can be adjusted according to the material of different glasses, so as to realize the control of the temperature, the adjustment of the current, the voltage or the heating time when sintering multiple glass sealing bodies 13 at the same time, and more accurately control the temperature of the glass sealing body 13, ensure the infiltration effect, and enhance the sealing performance.

[0045] Because the oxygen content in the furnace cavity needs to be controlled during the sintering process of the glass, the glass sintering furnace is provided with an air inlet and outlet for vacuumizing or injecting protective gas. In specific implementation, the glass sintering furnace can be vacuumized through the air inlet and outlet, or vacuumized and then filled with protective gas, or directly filled with nitrogen or other gas to discharge oxygen, so as to prevent the substrate 11 and the connector member 12 from being oxidized in a high-temperature environment, so as to ensure that the glass is fully infiltrated with the metal when it is hot, and avoid poor sealing.

[0046] Further, the glass sintering furnace is provided with a feeding device at the inlet and a discharging device at the outlet, so as to realize automatic feeding and discharging. When the glass material is needed, the sintering time of the sealing connector with different materials may be different. The automatic feeding and discharging devices are adopted, the sintered sealing connector is automatically discharged after the sintering of a single sealing connector is completed, the sintered sealing connector is transported out, and then the sealing connector to be sintered is input into the connector fixing seat 21 through the feeding device, so as to shorten the production cycle of a single product and realize more intelligent production.

[0047] Preferably, the inlet and outlet of the glass sintering furnace are provided with sealing doors, which can adopt vertical curtains or automatic induction doors, so as to smoothly feed and discharge without affecting the gas content in the glass sintering furnace, and the intelligent degree is high.

[0048] Further, the automatic discharging assembly further comprises a cold gas interface for filling cooling gas (such as nitrogen) in the automatic discharging assembly, so as to cool the welded part during discharging. In the ceramic brazing equipment, a detection assembly is further arranged at the output side of the automatic discharging assembly, which is used for leakage rate test, insulation resistance test, voltage resistance test and appearance consistency detection of the welded part, and a sorting mechanism is used for sorting according to the detection results, and the scrap rate, rework rate, yield rate and the like are calculated. The detection assembly is used for automatic sorting instead of the existing normal temperature cooling and manual detection, so as to improve the work efficiency, save the labor cost, and the intelligent degree is high.

[0049] Further, the heating control assembly analyzes the type of scrap product and the rework type, adjusts the position of the first electrode, the second electrode and the temperature sensor, and the output power of the electric energy regulator according to the type of scrap product and the rework type, so as to improve the sintering yield.

[0050] Further, the connector fixing seat 21 is one of a graphite mold and a metal mold, so that the connector fixing seat 21 is also a good conductor of electricity and heat. Therefore, after the sealing connector is loaded into the connector fixing seat 21, the positive and negative electrodes 222 can be directly connected to the sintering mold, and the sintering mold is heated by passing current.

[0051] Further, the positive and negative electrodes 221 and 222 are multiple pairs, such as four pairs, which are connected with the connector fixing seat 21, the base body 11, the connecting member 12 and the glass sealing body 13 respectively, and are heated at the same time. Since the glass may conduct electricity in the molten state, the glass is directly passed through current to heat itself in the molten state, so as to further increase the infiltration effect of the glass.

[0052] In summary, the glass sintering equipment of the sealed connector provided by the present application uses the heat generated by self-heating for heating the glass sealing body, does not need heat exchange, greatly improves the heat utilization rate, thus only needs to use less electric energy for heating and keeping temperature to the same temperature, and uses the internal resistance of the metal part of the sealed connector for heating, without the need to design and use an external heater.

[0053] Meanwhile, the present application does not need to heat the gas in the glass sintering furnace, does not need to use a large amount of heat insulation material when the furnace wall temperature is low, has low cost, small volume, and short cooling time after sintering.

[0054] In addition, when sintering multiple sealed connectors at the same time, the present application can also control the temperature of each sealed connector individually, so that each sealed connector can have different temperatures, and the furnace does not need a temperature uniform device, without the need to consider temperature uniformity, thus reducing the requirements of the glass sintering furnace.

[0055] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and inventive concepts of the present application, and all these changes or replacements shall belong to the protection scope of the claims attached to the present application.

Claims

1. An apparatus comprising a sealed connector and a glass sintering apparatus, the sealed connector comprising a base, a plurality of connector members disposed on the base, and a glass seal sealing a gap between the base and the connector members; wherein, The glass sintering device comprises a glass sintering furnace, a connector fixing seat and a heating sintering device are arranged in the glass sintering furnace, the connector fixing seat is provided with a plurality of sealed connectors, the heating sintering device comprises positive and negative electrodes, a power control module and a power supply module, the positive and negative electrodes are arranged on the connector fixing seat and are used for being connected with both ends of a base body or a connecting sub-piece, one end of the power control module is connected with the positive electrode, the other end of the power control module is connected with the positive electrode of the power supply module, the negative electrode of the power supply module is connected with the negative electrode, and the base body or the connecting sub-piece is made of metal material; after current is loaded at both ends of the base body or the connecting sub-piece, the temperature of the base body or the connecting sub-piece rapidly rises, so that the glass sealing body between the base body and the connecting sub-piece is heated to a hot melting state, thereby infiltrating the gap between the base body, the connecting sub-piece and the glass sealing body, and sealing is performed.

2. The apparatus comprising a sealed connector and a glass sintering device of claim 1, wherein, The heating sintering device further comprises a temperature monitoring module, the temperature monitoring module is arranged on the connector fixing seat and is electrically connected with the power control module.

3. The apparatus comprising a sealed connector and a glass sintering device of claim 2, wherein, The temperature monitoring module is at least one contact type temperature sensor, the contact type temperature sensor is arranged on the connector fixing seat and is located at the glass sealing body.

4. The apparatus comprising a sealed connector and a glass sintering device of claim 2, wherein, The temperature monitoring module is at least one non-contact type temperature sensor.

5. The apparatus comprising a sealed connector and a glass sintering device of claim 1, wherein, An air inlet and outlet for vacuumizing or injecting protective gas are arranged on the glass sintering furnace.

6. The apparatus comprising a sealed connector and a glass sintering device of claim 1, wherein, The power supply module is one of alternating current and direct current.

7. The apparatus comprising a sealed connector and a glass sintering device of claim 1, wherein, A feeding device is arranged at the inlet of the glass sintering furnace, a discharging device is arranged at the outlet of the glass sintering furnace, and a sealing door is arranged at the inlet and the outlet.

8. The apparatus comprising a sealed connector and a glass sintering device according to any one of claims 1-7, wherein, The connector fixing seat is a plurality of, the heating sintering device is one, and each connector fixing seat is connected with the positive and negative electrodes in parallel or in series.

9. The apparatus comprising a sealed connector and a glass sintering device according to any one of claims 1-7, wherein, The connector fixing seat and the heating sintering device are a plurality of, and each connector fixing seat is connected with a pair of positive and negative electrodes.

10. The apparatus comprising a sealed connector and a glass sintering device of claim 1, wherein, The power control module sets a glass sintering temperature-time curve according to the glass sealing body.

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