CN106410234B - A kind of thermal cell flexible electrical heap assembly tooling - Google Patents

Abstract

An assembly tool for a thermal battery flexible stack of the present invention includes a detachable part and a non-detachable part; the detachable part is composed of a bottom plate and a backing plate connected by two hexagon socket screws in the middle; the non-detachable part is composed of a lower plate, an upper plate, It is composed of two door levers, an upper circular plate, a lower circular plate, a hexagonal nut, a pressure rod, a locking screw and a hollow socket screw; the upper plate and the lower plate are fixed by two door levers at the diagonal position; the lower circular plate has Two intersecting grooves, the lower circular plate is fixed at the center of the bottom plate; the hollow receiving screw is placed on the upper plate for measurement, and the hollow receiving screw is fastened on the lower side of the upper plate with a hexagon nut through the center hole of the upper plate; the length of the pressure rod is shorter than that of the upper plate The height of the board, the side is opened with a rectangular slot, the pressure rod passes through the hollow receiving screw from the upper side, and the locking screw locks the pressing rod through the threaded hole on the side of the hollow receiving screw; there are two intersecting slots on the upper circular plate, and the slot position is the same as The lower circular plate is the same, and the upper circular plate is fixed on the lower part of the pressure bar with screws, corresponding to the slot of the lower circular plate.

Description

A thermal battery flexible stack assembly tool

technical field

The invention belongs to the technical field of thermal batteries, and in particular relates to an assembly tool for a flexible stack of thermal batteries.

Background technique

The thermal battery is a kind of thermally activated reserve battery that uses the heating system of the battery itself to heat and melt the non-conductive solid-state salt electrolyte into an ionic conductor and enter the working state. The internal electrolyte of the thermal battery is a eutectic melt composed of two or more inorganic salts. At room temperature, the electrolyte is a non-conductive solid; when in use, the electric ignition head inside the battery is ignited by an external current, thereby igniting the heating inside the battery. materials, the internal temperature of the battery rises rapidly, causing the molten salt electrolyte to melt and conduct electricity, activate the battery, and output electricity. The use of solid salt electrolytes is the main feature of thermal batteries, which are clearly distinguished from batteries using aqueous electrolytes, organic electrolytes, and solid electrolytes. This makes the thermal battery have the characteristics of long storage time, short activation time, high output current density, high specific energy, wide temperature range, and no need for maintenance and maintenance during storage, so it is used in various missiles, torpedoes and nuclear weapons. been widely applied.

In the thermal battery structure, the electric stack is the main body that generates electric energy, which is composed of a certain number of single cells connected in series and parallel. Thermal batteries undergo mechanical environmental assessments such as shock, vibration, and acceleration during use. If the assembly of the stack is not fastened and dislocation occurs under mechanical environmental conditions, the electrical performance will not be output normally, and even a short circuit of the thermal battery will cause damage to the equipment. Fault. The structure of upper and lower fixing plates, fastening strips and screw locking is adopted in the traditional thermal battery design stack to ensure that the single cells in the thermal battery stack are not in place under mechanical conditions, but the parts and process operations are relatively complicated.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a thermal battery flexible stack assembly tool, and utilizes the extrusion force between the thermal battery shell, cover, stack and insulating material to realize that the single battery does not occur under mechanical conditions. Misalignment, the invention reduces parts and simplifies the process of operation, while saving the space of the fastening strip, and the diameter of the thermal battery can be reduced by 4mm.

In order to realize the flexible fastening and limiting assembly of the above electric stack, the present invention provides a thermal battery flexible electric stack assembly tool, which includes a detachable part and a non-detachable part. The detachable part passes through the arc groove on the outer side of the lower circular plate through the lower plate Assembled with non-detachable parts;

The detachable part is composed of the bottom plate and the back plate connected by two hexagon socket screws in the middle. There are two symmetrical threaded holes on the side of the bottom plate away from the back plate. The threaded holes are screwed into the hexagon socket screws from the bottom to make the whole tooling have a certain angle Inclined; the backing plate is a semi-circular arc plate; the semi-circular arc plate has a notch for positioning the lead current collector in the thermal battery stack; the non-detachable part consists of the lower plate, the upper plate, It is composed of two door levers, an upper circular plate, a lower circular plate, a hex nut, a pressure rod, a locking screw, and a hollow receiving screw; the lower plate and the bottom plate have the same length and thickness, and the width is 30mm narrower than the bottom plate. The length and width are the same, the thickness is 4mm thinner than the lower plate, the length of the door lever is longer than the height of the backing plate, the upper plate and the lower plate are fixed at the diagonal position by two door levers; the lower circular plate has two intersecting grooves, The lower circular plate is fixed at the center of the bottom plate; the hollow receiving screw is placed on the upper plate to measure, and the hexagonal nut is fastened to the hollow receiving screw on the lower side of the upper plate through the center hole of the upper plate; the length of the pressure rod is shorter than the height of the backing plate , a rectangular notch is opened on the side, the pressure bar passes through the hollow receiving screw from the upper side, and the locking screw locks the pressing bar through the threaded hole on the side of the hollow receiving screw; the upper circular plate has two intersecting slots, and the slot position is the same as The lower circular plate is the same, and the upper circular plate is fixed on the lower part of the pressure bar with screws, corresponding to the slot of the lower circular plate.

Further, the bottom plate is a rectangular aluminum plate.

Further, the backing plate is a semi-circular red copper alloy plate.

Further, the lower circular plate is provided with two intersecting grooves with a depth of 3 mm, and the width of the grooves is greater than or equal to 5 mm.

Further, a notch with a depth of 3 mm is slotted on the side of the pressing rod.

Further, the upper circular plate has two intersecting 3mm deep grooves, the groove width is greater than or equal to 5mm, and the groove position is the same as that of the lower circular plate. correspond.

The invention utilizes the inclination of the tooling to ensure the verticality of the stack during the assembly process, and uses a slotted backing plate to fix the position of the lead current collector, reducing the trouble of confirming the position of the lead line during the assembly process. The groove realizes the fastening and binding of the electric stack, and calculates the height of the adjustment plate through the tooling, realizes the tight assembly of the electric stack in the unit cell, and satisfies the fact that the electric stack does not loosen under mechanical conditions. This invention reduces parts and simplifies The process of technological operation greatly improves the production efficiency, and at the same time saves the space of the fastening strip, and the diameter of the thermal battery can be reduced by 4mm.

Description of drawings

Fig. 1 is a structural composition diagram of the thermal battery flexible stack assembly tool of the present invention.

Detailed ways

The technology of the present invention will be further described in detail below with reference to FIG. 1 . In this implementation example, the diameter of the stack is 22 mm, and the target height of the stack is 57 mm.

The stack assembly tooling of the present invention includes a detachable part and a non-detachable part. The detachable part is composed of a bottom plate 11 and a backing plate 12 connected by two hexagon socket screws in the middle; The tooling has a certain angle of inclination; the backing plate 12 is a semicircular arc-shaped plate with a thickness of 3mm and a height of 120mm. There are notches on the plate for the positioning of the lead current collectors in the thermal battery stack. The non-detachable part is composed of a lower plate 21, an upper plate 23, two door levers 22, an upper circular plate 28, a lower circular plate 29, a hex nut 27, a pressure rod 25, a locking screw 26, and a hollow receiving screw 24; the lower plate 21 The length with base plate 11 is 135mm, thickness 10mm, lower plate 21 width 70mm, 30mm narrower than base plate 11, upper plate 23 and lower plate 21 length, width are the same, thickness is 6mm, door bar 22 length 130mm; Upper plate 23 and lower plate 21 is fixed by two door levers 22 at the diagonal position; the lower circular plate 29 has a diameter of 22mm and has two intersecting 3mm deep grooves with a groove width of 5mm; the lower circular plate 29 is fixed on the center of the bottom plate 11; the hollow receiving screw 24 is placed on the upper plate 23 for measurement, and passes through the center hole of the upper plate; the hex nut 27 fastens the hollow receiving screw 24 on the lower side of the upper plate 23; Pass through the hollow receiving screw 24 from above; the locking screw 26 locks the pressure rod 25 from the threaded hole on the side of the hollow receiving screw 26; the upper circular plate 28 has a diameter of 22mm, and has two intersecting 3mm deep grooves, and the groove width is 5mm. The slot position is identical with the lower circular plate 29; the upper circular plate 28 is fixed on the bottom of the depression bar 25 with screws, corresponding to the lower circular plate 29 slot positions. The detachable part back plate 12 passes through the arc groove of the lower plate 21 outside the lower circular plate 29 and is assembled with the non-detachable part. Pull the pressure rod 25 to the top, tighten the locking screw 26, and stack the components of the stack, the single battery, current collector, lead current collector, heating sheet and asbestos pad in order; then loosen the locking screw 26 , press the pressure rod 25 against the stack and tighten the locking screw 26 again to remove the detachable part from the bottom of the lower plate 21; then loosen the locking screw 26 and use a spring press to further tighten the stack, when the pressure When the process setting value is reached, tighten the fastening nut 26, measure the stack height with a vernier caliper to be 54mm, and calculate the difference between the target height and the target height when the stack is tightly assembled in the battery case is 3mm, that is, the height of the adjusting piece is 3mm The polyimide insulating tape can be inserted into the grooves of the upper circular plate 28 and the lower circular plate 29 to bind the compacted electric pile; the locking screw 26 is unscrewed, and the bundled electric pile is taken off, and then the electric pile is bound with the insulating tape The regulating piece is tied to the bottom of the stack, and the stack is completed. The battery stack prepared by this method is connected with the battery cover and put into the battery case to form a battery pack, and then the battery pack is subjected to electrical performance tests under the conditions of vibration 11g, impact 100g and acceleration 40g, and the voltage output is normal. The battery is safe and reliable, and no abnormal phenomenon occurs.

The preferred embodiments of the present invention are only used to help explain the present invention, and the preferred embodiments do not exhaustively describe all the details, nor limit the invention to the described specific implementations. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can make good use of the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (6)

1. a kind of thermal cell flexible electrical heap assembly tooling, which is characterized in that removable including removable section and non-dismountable part It unloads and partially passes through the arc groove that lower plate is located on the outside of lower plectane and fitted together with non-dismountable part；

The removable section is connected by two, middle part soket head cap screw with backup plate by bottom plate and is formed, and bottom plate is far from backup plate side There are two symmetrical threaded holes, and threaded hole is screwed into soket head cap screw from bottom, for making entire tooling have certain angle inclination；

The backup plate is semicircular arc plate；It is provided with notch on the semicircular arc plate, for lead flow collection sheet in thermal cell galvanic pile Positioning is used；

The non-dismountable part is by lower plate, upper plate, two door rods, upper plectane, lower plectane, hex nut, compression bar, locking screw Nail, hollow undertaking screw composition；

The lower plate is identical as floor length, thickness, and width is narrower 30mm than bottom plate, upper plate and lower plate length, of same size, thickness Thinner 4mm than lower plate, door rod length is longer than backup plate height, upper plate and lower plate and is fixed in diagonal positions by two door rods；

The lower plectane is opened there are two the slot intersected, and lower plectane is fixed on bottom plate centre；

The hollow undertaking screw is placed on the upside of upper plate, and by upper plate centre bore, hex nut fastens hollow hold on the downside of upper plate Connect screw；

The compression bar is shorter in length than backup plate height, and rectangle notch is opened in side, and compression bar passes through hollow undertaking screw, locking from upside Screw locks compression bar from hollow undertaking screw flank threads hole；

The upper plectane is opened there are two the slot intersected, and groove location is identical as lower plectane, and upper plectane is screwed in compression bar lower part, It is corresponding with lower plectane slot position.

2. a kind of thermal cell flexible electrical heap assembly tooling as described in claim 1, which is characterized in that the bottom plate is rectangle Aluminium sheet.

3. a kind of thermal cell flexible electrical heap assembly tooling as described in claim 1, which is characterized in that the backup plate is semi arch Shape red copper alloy sheets.

4. a kind of thermal cell flexible electrical heap assembly tooling as described in claim 1, which is characterized in that the lower plectane is provided with two The slot of the 3mm depths of a intersection, groove width are greater than or equal to 5mm.

5. a kind of thermal cell flexible electrical heap assembly tooling as described in claim 1, which is characterized in that open the side of the compression bar The notch of groove depth 3mm.

6. a kind of thermal cell flexible electrical heap assembly tooling as described in claim 1, which is characterized in that the upper plectane is provided with two The slot of the 3mm depths of a intersection, groove width are greater than or equal to 5mm, and groove location is identical as lower plectane, and upper plectane is screwed in compression bar Lower part, it is corresponding with lower plectane slot position.