CN114464827A - A self-fastening miniaturized thermal battery assembly device and assembly method - Google Patents

Abstract

This solution discloses a self-fastening miniaturized thermal battery assembly device in the field of thermal battery technology, including a self-fastening assembly, an electrode placement tool and an elastic abutting member, and the self-fastening assembly includes an upper fixing plate and a lower fixing plate A steel strip is connected between the upper fixing plate and the lower fixing plate, and the upper fixing plate and the lower fixing plate are both provided with through holes; the electrode placement tool includes a fixing seat, and the fixing seat is provided with a "U" shape The groove is provided with a semi-circular groove, the fixed seat is threadedly connected with a push rod, and the push rod penetrates the fixed seat to the groove. The assembly device mentioned in this solution can solve the problems of difficulty in fastening the miniaturized thermal battery and slow production speed.

Description

A self-fastening miniaturized thermal battery assembly device and assembly method

technical field

The invention relates to the technical field of thermal batteries, in particular to a self-fastening miniaturized thermal battery assembly device and an assembly method thereof.

Background technique

Existing weapons are rapidly developing in the direction of informatization, intensification, miniaturization, and motorization, and they also put forward higher requirements for supporting power sources. The application background of miniaturized thermal batteries is based on thermal batteries that are widely used in the field of weapons such as smart shells and rockets.

At present, the existing domestic thermal battery production process is mainly manual operation, the degree of automation and intelligence is low, and the size of the produced thermal battery is relatively large, and the electrode size is usually between Φ22mm and Φ110mm. For the thermal battery with electrode size larger than Φ28mm, the battery stack is fastened by steel belt components with upper and lower fixing plates, which are divided into two fastening methods: "knock on steel belt" or "screw screw"; for electrode size in Φ18mm For thermal batteries between ~Φ28mm, the battery stack is usually fastened by winding polyimide tape back and forth. The electrode size of the miniaturized thermal battery is between Φ8mm and Φ18mm. Due to the small size, if the conventional large electrode thermal battery assembly method is used to place the electrode sheets, stack the battery and fasten the battery stack, it will become extremely difficult. There are outstanding problems such as poor operability or inoperability, extremely slow production speed, and poor quality consistency, and cannot meet the requirements of large batches and low prices of small thermal batteries.

Therefore, miniaturized thermal battery assembly has become a technical problem that restricts the miniaturization of thermal batteries.

SUMMARY OF THE INVENTION

The present invention is intended to provide a self-fastening miniaturized thermal battery assembly device and an assembly method to solve the problems of inoperability, slow production speed and uneven quality of miniaturized thermal batteries in the prior art.

In this solution, a self-fastening miniaturized thermal battery assembly device includes a self-fastening component, an electrode placement tool and an elastic abutting member. The self-fastening component includes an upper fixing plate and a lower fixing plate. A steel belt is connected between the fixing plate and the lower fixing plate, and the upper fixing plate and the lower fixing plate are provided with through holes; A semicircular groove is arranged in the groove, and a push rod is threadedly connected with the fixed seat, and the push rod penetrates the fixed seat to the groove.

Further, the elastic resisting member is a mica sheet or a laminate.

Further, a stress clamp plate is fixedly connected to the upper fixing plate, a fastening groove is provided on the side of the upper fixing plate close to the stress clamp plate, and the steel bar is bent and passed through the fastening groove.

A method for assembling a self-fastening miniaturized thermal battery, comprising the following steps:

Step 1: Place the miniaturized thermal battery stack between the upper fixing plate and the lower fixing plate;

Step 2: Tighten the steel belt to fix the battery stack between the upper fixing plate and the lower fixing plate, pass the steel belt through the fastening groove, and fix the steel belt with the stress card;

Step 3: After the stack is full, place the battery stack and the self-fastening assembly into the semi-circular groove on the electrode placement tool. By rotating the push rod, the push rod passes through the side of the fixing seat and passes through the through hole of the upper fixing plate, and squeezes The battery stack, so that it applies constant pressure to the battery stack;

Step 4: Fill the mica sheet into the gap between the top of the battery stack and the upper fixing plate to keep the battery stack at a constant stacking pressure.

The working principle of this solution and its beneficial effects: when in use, the miniaturized thermal battery is stacked between the upper fixing plate and the lower fixing plate, the through hole of the lower fixing plate is used as the ignition channel when the thermal battery is activated, and the The through hole is used as the stack pressure application position of the battery stack. After the stack is full, place the battery stack and self-fastening components into the semicircular groove on the electrode placement tool. By rotating the push rod, the push rod passes through the side of the fixing seat and is fixed by the upper The through hole of the plate, squeeze the battery stack to apply a constant pressure to the battery stack, and fill the mica sheet into the gap between the top of the battery stack and the upper fixed plate, so that the battery stack maintains a constant stack pressure. In this solution, the self-fastener, electrode placement tool and elastic abutting member are used together. After stacking miniaturized thermal batteries, the push rod is pressed, and the elastic abutting member is used for positioning, so that the stacking pressure is stable, and the current problem is solved. There are problems of slow stacking speed of miniaturized thermal cells and poor quality consistency.

Description of drawings

1 is a schematic structural diagram of a self-fastening component in a self-fastening miniaturized thermal battery assembly device of the present invention;

2 is a schematic structural diagram of an electrode placement tool in a self-fastening miniaturized thermal battery assembly device of the present invention.

Detailed ways

The following is a further detailed description through specific embodiments:

The reference signs in the accompanying drawings include: fastening groove 1, through hole 2, upper fixing plate 3, stress clamping plate 4, steel strip 5, lower fixing plate 6, fixing seat 7, groove 8, semicircular groove 9, Advance rod 10.

The embodiment is basically shown in Figures 1 and 2: an assembly device for a self-fastening miniaturized thermal battery, including a self-fastening assembly, an electrode placement tool and a mica sheet, and the self-fastening assembly includes an upper fixing plate 3 and the lower fixing plate 6, the upper surface of the upper fixing plate 3 is provided with two symmetrical fastening grooves 1, and the fastening grooves 1 are fixedly connected with the stress card plate 4, and the two sides of the lower fixing plate 6 are respectively Two steel strips 5 are fixedly connected, the other end of the steel strip 5 passes through the fastening groove 1 and is bent, and the upper fixing plate 3 and the lower fixing plate 6 are both provided with through holes 2; the electrode placement tool includes fixing The seat 7, the fixed seat 7 is provided with a "U"-shaped groove 8, the groove 8 is provided with a semicircular groove 9, the fixed seat 7 is threadedly connected with a push rod 10, and the push rod 10 penetrates the fixed seat 7 to groove 8.

A method for assembling a self-fastening miniaturized thermal battery, comprising the following steps:

Step 1: stack the miniaturized thermal batteries between the upper fixing plate 3 and the lower fixing plate 6;

Step 2: Tighten the steel strip 5 to fix the battery stack between the upper fixing plate 3 and the lower fixing plate 6, pass the steel strip 5 through the fastening groove 1, and use the stress clip 4 to fix the steel strip 5;

Step 3: After the stack is full, place the battery stack and the self-fastening assembly into the semicircular groove 9 on the electrode placement tool, and rotate the push rod 10 so that the push rod 10 penetrates the side of the fixing seat 7 and passes through the upper fixing plate 3. Through hole 2, squeeze the battery stack to apply constant pressure to the battery stack;

Step 4: Fill the mica sheet into the gap between the top of the battery stack and the upper fixing plate 3 to keep the battery stack at a constant stacking pressure.

When in use, the miniaturized thermal battery is stacked and placed between the upper fixing plate 3 and the lower fixing plate 6, the through hole 2 of the lower fixing plate 6 is used as the ignition channel when the thermal battery is activated, and the through hole 2 of the upper fixing plate 3 is used as the battery. The stacking pressure is applied to the position. After the stack is full, the steel strip 5 is tensioned, and the steel strip 5 is clamped in the fastening groove 1 by bending the steel strip 5. The stress clip 4 limits the steel strip 5, and the battery stack And the self-fastening assembly is placed in the semicircular groove 9 on the electrode placement tool, and by rotating the push rod 10, the push rod 10 passes through the side of the fixing seat 7 and passes through the through hole 2 of the upper fixing plate 3, and squeezes the battery stack to make the battery stack. It applies constant pressure to the battery stack, and fills the mica sheet into the gap between the top of the battery stack and the upper fixing plate 3, so that the battery stack maintains a constant stack pressure. The self-fastener, electrode placement tool and mica sheet in this scheme are used together. After stacking the miniaturized thermal battery, the battery stack is fastened with the steel belt 5 for the first time, and then the push rod 10 applies pressure, and the second The battery stack is fastened for the second time, and the mica sheet is used for positioning, so that the stack pressure is stable, and the third time is tightened to stabilize the voltage. At the same time, the problems of slow stacking speed and poor quality consistency of the existing miniaturized thermal batteries are solved.

The above descriptions are only embodiments of the present invention, and common knowledge such as well-known specific structures and characteristics in the solution are not described too much here. It should be pointed out that for those skilled in the art, some modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effectiveness and utility of patents. The scope of protection claimed in this application shall be based on the content of the claims, and the descriptions of the specific implementation manners in the description can be used to interpret the content of the claims.

Claims (4)

1. An assembling device of a self-fastening miniaturized thermal battery, characterized in that: the electrode self-fastening device comprises a self-fastening assembly, an electrode placing tool and an elastic abutting piece, wherein the self-fastening assembly comprises an upper fixing plate and a lower fixing plate, a steel belt is connected between the upper fixing plate and the lower fixing plate, and through holes are formed in the upper fixing plate and the lower fixing plate; the electrode placing tool comprises a fixed seat, wherein a U-shaped groove is formed in the fixed seat, a semicircular groove is formed in the groove, the fixed seat is in threaded connection with a pushing rod, and the pushing rod penetrates through the fixed seat and the groove.

2. A self-fastening miniaturized thermal battery assembling device according to claim 1, characterized in that: the elastic abutting piece is a mica sheet or a laminated plate.

3. A self-fastening miniaturized thermal battery assembling device according to claim 2, characterized in that: the upper fixing plate is fixedly connected with a stress clamping plate, one side, close to the stress clamping plate, of the upper fixing plate is provided with a fastening groove, and the steel bar penetrates through the fastening groove in a bending mode.

4. A method of assembling a self-fastening miniaturized thermal battery according to claim 3, characterized in that: the method comprises the following steps:

the method comprises the following steps: stacking the miniaturized thermal battery between an upper fixing plate and a lower fixing plate;

step two: tensioning a steel belt to fix the cell stack between the upper fixing plate and the lower fixing plate, enabling the steel belt to pass through the fastening groove, and fixing the steel belt by using the stress clamping plate;

after the stack is fully stacked, the cell stack and the self-fastening assembly are placed in a semicircular groove on an electrode placing tool, the pushing rod is rotated to penetrate one side of the fixing seat and pass through the through hole of the upper fixing plate, and the cell stack is extruded to apply constant pressure to the cell stack;

step four: and filling a mica sheet into a gap between the top of the cell stack and the upper fixing plate, so that the cell stack is kept at a constant stack pressure.

Images